Your little velocity stack looks good. Hopefully you'll be selling it soon. :) Oh, by the way, at 2:50, you call it a MAP sensor but it's actually an Air Intake Temperature sensor.
I wonder why no spark plug change. Just a little hotter. A little bit more gap and a better plug goes a long way. And I really like the muffler on the bottom like that. I have seen others where the muffler is up near the seat and down low like that makes it look sooooo much better. Right on dude. Sorry about the crash. And you could have cut it out of vid and right on you did not. Thanks man. Your right lessons learned dude. Right on right on. Keep up the good work
The reason for removing the internal snorkel is to open up that intake passage. The "velocity" thingy closes it back down again although it shortens the "intake tube". Just cut the intake snorkel shorter and have about the same thing. My stock 2014 Grom tops out at 66mph with my 190 pound body on it. I'm working on some basic mods (pre-programmed ECU, Iridium spark plug, air box mod and a Hurricane air filter) to try to get it up to 70mph.
Does a velocity stack do anything more than reduce turbulence at WOT? The stock throttle body of the Grom has an ID of 24 mm. The inside horn's opening is 24 mm x 36 mm. The ID of that horn is 24 mm. The short adapter that mates the horn and the intake tube going out the back is 24 mm. The tube out the back has an ID of 24 mm. So, if the main effect was coming from taking out the metal mesh screen, in that case stock filter < stock filter/screen removed < K & N filter < Koso Hurricane filter. Less restriction equals more air to the throttle body. Dyno comes after 5 things were done. 1. Exhaust, 2. Filter mesh removed, 3. inner horn removed, 4. Velocity stack added, and 5. PC V installed (with map). The exhaust and Power Commander would make the greatest change, I would guess. What would the results of a Dyno be with the stock horn left in?
Stack length determines effective intake length. (Stacks do not make power... they MOVE power). As a general rule; the shorter the inlet the higher peak power will be noticed - there is a law of diminishing returns, of course, and reducing the length too much on a 10 hp engine can hamper average acceleration. FYI: No stack whatsoever made the most peak power...but killed average. We tested multiple lengths before making ours available as a good mix for both as the stock stack did not match the new power characteristices when the high flow exhaust was added.
This bike is a great advert about how much rider weight makes a difference, i'm 5ft 6in and 120 pounds and took a stock grom out the dealer for a test ride and hit 64mph stock. So with all the great Brock's performance parts and mods I should be hitting a peak 20% power gain on that, lovely parts Brock, great company also :) (Hope you don't take offence about the power to weight ratio bit) - From the UK, ash bandicoot
+ash bandicoot lol, I take no offense at all. With a bike making the power of a Grom, weight and physical size makes a much larger difference than on a more powerful machine - and the mods make can have a much bigger difference also. With our Chimera intake kit, BST wheels and a slight gearing change, I top out at 72 MPH now and easily cruise at 55-60 MPH. You would REALLY fly. Thanks for the comment.
What's the slight gearing change? I'm a little larger than you and am interested in easily cruising at 55mph. I also assume you mean that you have your AH2, PCV, Chimera intake, BST wheels and slight gearing.
please brock make this with the 2017 grom again..... the airbox is different on the 2017 Model Honda give the inner tube another shape its now directing forward directly to the filter with a 90degree angle and also the inlet tube there is now an inner and outer tube would be very interresting for us gromlins out there :-)
Awesome video! Thanks for the great info. Do you have a recommended tire for canyon carving? I also ride a Hypermotard with Dunlop Q3s and love the feel and grip of those. I just bought my Grom yesterday and want a stickier tire that warms up faster. Also, I didn't see the velocity stack in your website. When will that be available?
We have had great luck with the Michelins for the Grom. See below on the stack development. We jumped ahead a bit and now have an airbox removal kit with waterproof air cleaner (big power gains). call my staff for details - some items are not on our site yet.
well... my msx is a stock one! just took out the metal mesh and the small tube from air box and the top speed on the speedometer was 115kh/71.8mh !! on strait flat road.(i did the first 800km by 6000rpm)
Great job Ron! What do you weigh? and are you at a 'full tuck?" or sitting upright - like I am in our video's? Let us know... we "thirst for Grom knowledge"!!
ZMoto no. All stock except for the mods noted. Our goal was to show the performance gains of the products, not how fast we can go...that will come later.
@idrissmorocco23 no your wrong. The motor mount bolts snapped, I got new bolts at the hardware store. That's the only thing that's ever broken. I take care of my machines
@idrissmorocco23 do you see my comment was posted 9 months ago, I did 1,000 miles on the clone in just the first month. And like I said only the motor mounts snapped. I expected way worse. Im not a broke teenager thinking my shits better than everyone elses dont worry. I own a 50,000$ ford superduty 2016 dually worth plenty enough money to afford 3 Ducatis if I want but guess what I'm currently building a performance gx200 honda for a offroad minibike. I could get a dirtbike if I wanted, just like I could get a real grom. I got the grom clone because 800$ is throwaway money, I can wreck it and not lose any sleep. If I wrecked my actual honda worth 3k yes I'd be upset
@Tina The Pitbull and @idrissmorocco23 - please keep your comments civil. Discussion/debate is always good...unless it gets out of hand. Please read this before posting on our channel next time: blog.brocksperformance.com/brocks-performance-youtube-rules/ You both obviously have a passion for bikes, so we would hate to lose you.
Hello I have a small question. In your opinion If I install an high flow exaust the rest of it must be larger diameter than stock or doesn't matter? Cause I installed one in my scooter but the manifold until the muffler it's the same as stock and it came all together. I see other full exausts and the diameters of the manifold are bigger. Thanks in advance.
That depends on design. Generally yes, larger diameter = higher flow= more power... BUT, if you don't also increase the air available to the engine, the results can suffer. A larger diameter pipe can hamper bottom end power if not properly designed. at Brock's we offer 'packages', so true overall gains are noticed. A small diameter system could help - if the cat is removed - but the gains are typically minimal... they are usually just noisy.
dpgc9 go here and check out the dyno charts : www.brocksperformance.com/brocknm/templates/bpp1.aspx?articleid=655&zoneid=25 we shoot for 13.2 to one. We tune with our Dynojet model 250I with load control. If you purchase a Brock's exhaust, we offer free mapping to match a large combination of intake mods. We do all of the work, so you don't need to mess with the hassle or expense of trying to tune the bike yourself. Just plug in and GO!
Question , on GROM 2019 I ordered a power commander 5 , add said I needed this Power relay ? Connect 4 wires to Key power chassis RED to WBC2 But Power Commander paper work doesn't mention it at all , Please help me. Thank you in advance
We have not addressed the 2019 Grom, yet. Sorry. Please contact Dynojets technical department or fill out this form: blog.brocksperformance.com/product-request/
Certainly, the bike will operate just fine. The thing you need to remember is that you have increased exhaust flow as well as intake flow. This disrupts the engine's optimum air-fuel ratio (AFR), which can lead to drivability issues as well as reduced performance. A Power Commander (PCV), with our custom map, will correct the AFR to where it needs to match the exhaust to the intake mods. The PCV can always be added later, or you might find the bike is just fine for your tastes without it.
All iv done is the air box modification and I'm hitting speed up to 68mph on good day 70 mph and I have no power commander or race exhaust on the bike just started exhaust all the way :)
fun stuff It drives me crazy seeing all these people with almost stock and stock groms sayin they hit 70 when I've spent over 1000 dollar's on performance mods and lightweight parts and i still cant get the thing past 64 can anybody explain that? Lol
@@lexxxus21 i finally hit 69 mph today but mine is believable after all the performance parts i put on lol and i was going at a slight downhill on the four lane there is no way a stock 9 hp grom has enough torque to hit 70 mph unless its going down a steep hill and also a stock grom doesnt even have enough power to hit rev limiter where as my grom has about 15 hp and it struggles anything past 64 i got it to 69 today and I was even surprised and even hitting 69 mph it was around 9000 rpms i dont even think a stock grom has the power to by itself hit 9000 rpms without a steep hill to ride down when my grom was stock i couldnt get past 57 mph
its not bs it depends mainly on your weight but also where you live... and yes anyone can get a stock grom to 70 go do a hill bomb... you should bounce the rev at around 73 or so maybe 74 if its a windy day with wind at your back you should also be hitting In the higher 60s.. im 140lb... this guy has 60-70 lb heaier then me... so of course ill go faster on that bike then him.. but theres not much he can do about that unless he lose weight but if you are hitting 60 that's good man. here I have two hills if I want to go out to the valley on one way the wind blows in my face max I can do uphill is around 47-50mph and drop to 3rd and then back to 4th to less stress it. on way home though wind is on my back I can go like 65 up the same hill...also hardly any street is level most are either uphill slightly or downhill slightly.. the main street by my house goes like 4-5 blocks to a 7 eleven if I ride my bmx even though it looks flat on way to the store I have to pedal all the way there... but on way home I barely have to pedal because it has a slight downhill. though if you stood there it would look perfectly flat its not. so vids can be misconceiving.. you never know the true factors ie slight downhill or even if its uphill if the wind is blowing 20mph on their back helping them a lot. since its not a freeway bike 60mph is good for city burning you can usually lane split(im in California) and stay ahead of the mob of cars and cops don't care if you are speeding a little because you aren't speeding like the bigger bikes blowing by at 100mph.. ive even rode with some motorcycle cops at 60 mph in the city and they don't care … the grom is the bomb.. I don't think you can get a speeding ticket on it even when you do speed and that is huge for a motorcycle. if you really want to go faster get a bigger bike if you really want a fast mini bike save up for the 250 or 300 swap and then it will be the bike you want. but the swap isn't cheap.
@@jdogg661420 Yeah i totally understand that and what helps you hit the higher speeds is when you atleast do the exhaust cause my bike wouldnt even hit the rev limiter just revving it in neutral till after atleast the muffler i read that they wont have enough hp to until you mod them a little and i also have a cb300f
@@BrockDavidson thanks MR Brock,,,had a look,,the problem lies at my end(the Australian gov is closed its all down,,eg a letter from Germany took 8weeks,,,will make my order as soon as i can,,cheers 🍀
Perhaps, but that would have disrupted this testing. There is no doubt the Grom responds positively to gearing changes. We now have two more teeth added to the rear, for quicker acceleration.
whats up bro,, I recently bought a honda grom 2017,, I really like that exsaust, the way it looks and love the way it sound and I will like it for my grom,, please send me info and price if you can. thank you
I'm going to buy the PCV from you and your short ram intake. Your exhausts are badass, but i'm a fan of the up high exhaust, and also a longtime faithful Yoshimura customer. I know i sound like a newb, but i'm no mechanic. I pay for all of my work to get done professionally. What will i have to do to get the proper map for that combo? Should i expect the same gains?
+chuckin clouds Excellent choice on our intake. Our maps are available with our exhaust purchase, if you go with another exhaust mfg. you will need to find another means of mapping your bike. That's another advantage of a Brock's exhaust purchase. Click here for more info (see Map Support): www.brocksperformance.com/brocknm/templates/bpp1.aspx?articleid=406&zoneid=22
Any good or bad effects if I remove the extension inside the air box and not install the aluminum one? I don't have a grom yet but I plan on getting one soon!
At some point. But we have more powerful mods we are currently working with also. Please understand, we are not 'parts merchants' we don't sell items unless our R&D team proves they are the best for the intended application. We should have more updates soon!
@Steven - yes, this mod is available for your 2017: www.brocksperformance.com/Default.aspx?ItemID=204234. For a larger performance gain, we use this: www.brocksperformance.com/Waterproof-Short-Ram-Air-Intake-Kit+I404994+C448.aspx please give us a call if you need additional advice. 937-912-0054
+Brock Davidson I see the velocity stack is 47$. Good deal for a clean, slick lookin intake. But are you selling the exhaust, flash and air box mod? I was wondering what the package would cost, installed, without the bearings. I'm sure there is a huge market for these mods in a package form. I couldn't find much besides the velocity stack.
Was going to order some parts from BP. However you have to jump through about 20 hoops just to order. You have to be approved? A credit card isn't approval enough? I don't want another username or password to remember. I just wanna order some parts. Tried several times to create an account or profile, whatever. Just keeps telling me the email already exists etc etc. I'm not sure why you don't just have a checkout with paypal, or credit card info, like everyone else on the internet. It's super frustrating and being impatient and wanting to get my bike done, i'll probably order stuff off ebay. Not everyone is great with computers, passwords, or wanting to wait to be approved in order to order a couple parts. I'm sure I'm not the first person to be put off by the complicated ordering/membership. If i was you I'd fix it.
+chuckin clouds not sure what's up? We have regular credit card, PayPal etc. No hoops - please call 937-912-0054, click sales and ask for Steve, our sales manager, he will straighten your account up for you. You can also go to www.BrocksPerformance.com and click live chat 8am-5pm Eastern. Our staff is very responsive. E-mail me personally: bmail@brocksperformance.com if you need additional assistance.
+chuckin clouds glad we got you sorted. We ship same day if your order was placed by 2pm - you will receive an order confirmation with a tracking number if you gave our staff your e-mail address. Keep us posted on your Grom!
Its a REAL SHAME the NHRA won't sanction the jr drag bike 125cc class. Its awesome to.get 12-15yr old track time before theh can ride a 600 and an alternative to the Jr dragster classes that are really affordable. Hell id REALLY LOVE a Jr Street bike class as well as the wheelie bar class for that.
I have never understood NHRA's take on jr. dragbikes. My son used to race mini motocross, he was running 50+ mph, in the dirt over JUMPS...and they won't let kids drag race. I'm sure the lawyers are involved.
@@BrockDavidson it really annoys me especially given that the F.I.A allow it so you can race in the UK and Europe on one from 11. It wouldn't have to be difficult to write the rules. Rated Helmet and leathers. Clutch and foot shift only (with an exception for disabled riders to use a push button but have a manual clutch) 125cc 4 strokes with no Aftermarket ECU/BUMPBOX etc to limit the cost. Talk to the manufacturers about a 15" wheel limit A limit on ET and Time of say 100mph and an appropriate time for that trap speed run 3 classes. 'Stockkid' - stock wheelbase, stock cases, stock frame dot tyre. 'Streetkids' - extended wheelbase with a limit of 6-8" of stretch. Dot tyre.allowing aftermarket engines/swaps so a rotax 125 kart engine or similar would be fine in an aprilla chassis or an aftermarket version of the CG125 engine in a Grom frame. 'Topkids' custom chassis and engine with wheeliebars Have the Twins and Single 4 strokes allowed to enter so we can have mini baggers or wheelibar 'Harleys' runng alongside the extended swingarm Suzuki. Essentially set up so the kid can race the same type of bike as Mom or Dad. Shit I'd build a set of fairings to make my niece or goddaughter's z125 look like my Ninja or her gsxr125 look exactly like someone has taken my 'superstreet' 68" Busa or Bandit and shrunk it down for them right down to the Brocks Echaust and cycledrag sticker. Get her the leathers and lid for her birthday and bike for christmas and spend every testt and tune we can at the track so at 16 I can put her on a 600 and 17 throw her the keys to the blown busa for.a pass.
My 70s pedal moped(highly modded) goes just as fast but gets there in under 4.5 secs and in California I only have to pay $20 once for registration no yearly fee. I am never getting a grom but I might get the exhaust because I swapped the old 2-cycle engine with a lifan 125cc (semi-auto grom clone engine with better bore x stroke 54x54 not like the grom 52.somethingX57 and my moped only weighs 134lbs wet and the grom 225lbe lol I have a rocketship compared to grom
Brock Davidson Took me three hours if you have a Honda CT110 weighs about the same and you can just directly swap a pit bike engine in with it congratulations you have a 140cc bike engine powered Honda ct110 that would only take 35 minutes at most for me to swap that engine who has the time, most people but then again I can’t blame you for not knowing how easy it was.
Drivers Obsession If yours does 73 with just an exhaust I want you to ride mine that only does 64 with more than just an exhaust in fact ive done almost everything you can do to the 125cc motor besides turbo it and I've got over a grand in performance parts and lightweight parts and even if im going downhill i will not reach a speed any higher than 64 mph so i dont get how in the world you do 73 with just an exhaust...what do you weigh 50 pounds and i want your exhaust if it does that much more in reaching a higher speed than all of my stuff combined....
Yes it really does 73 most groms do mine is a 2015 and I have hotlap exhaust I will post a video showing my speed on my UA-cam this weekend it’s basically stock besides the exhaust and I’m lowered and stretched on ruckus forks
I don’t get how yours won’t go at least 70 if you have all those parts into it how many miles do you have? I have 5000 and it’s due for its oil change and I still have stock intake box I want to get a chimera intake btw my top speed is 73 and it hits rev limiter so I want to get rid of the governer I’m sure it’ll go faster I weigh 176 and I’m 5 9 tall
I have a scooter (scarabeo street) that goes as fast as this bike right here and I've spent only 200€ on it. Just a 70cc engine, a sito exhaust and second gears for top speed.
The gearbox will be a HUGE PART of that. A C.V.T. Will eat something like half the crank horsepower. Swapping this motor to a conventional gearbox would massively improve the speed especially if you gave it 4 or 5 fairly long gears for an LSR run. Of course no replacement for displacement is obviously true.
My weigh is 87kg and 175cm high and i must say i never.. never.. never.. tuck on my bikes!!! of course my type of bikes are off road so i always sit upright and close to the handlebar. for wheelys i'm siting on the middle of the sit.(msx do not have enough power for it with stock sprockets)
Personally I can't see the point making these things 5mph faster , If you want to go fast get a fast bike these aren't meant to be fast there meant to be fun which they are . I use mine on the back of my motorhome to get around from the campsites and it's great.
It's not about how 'fast' they can go...it's about how much quicker they can accelerate...in traffic. In stock form my situational awareness told me that anything above 35-40 MPH in traffic was uncomfortable - simply due to the inability to quickly move away from cars/trouble. After our mods, my comfort zone moved to 50-55 MPH. Please check out this dyno chart: bit.ly/3hxqi9q peak HP in the higher revs is increased around 30% and peak torque is increased around 25%. On a bike that drops down to 6hp in the higher evs in stock form - that increase is giant and easily felt. If you are putting around 10 mph campgrounds - the stock config is fine.
That;s GREAT! I'm 225 lbs - and I'm not tucked. We just installed BST carbon fiber wheels, our Chimera intake with Sprint filter and added 2 teeth to the rear sprocket. I went 70 MPH, no problem! Anything 55 MPH and slower is partial throttle now (:
Np I like what your doing and before you laid down the grom I was like damn He going into that turn hot. He really has faith in those 12 inch tires. Then bam you were down. I went o shit!
That's impossible, a stock Grom hits rev limiter at 73mph in 4th gear. There are people running big bore kits that can't hit 78mph, so I'm calling bullshit.
This is so disgusting that i want to puke. Especially the last part 9:09. Typical salesmen speech. Think twice before you spend your hard earned cash, on money hungry crooks in the form of a salesman that tell you all the things you want to hear. Study, read and learn. and what is known and confirmed. Rather than just listen to any guy telling you "This tube makes your motorbike get 5 HP more. Only at the cost of 169$! Buy it at my store!" And yes i looked at his store. Not gonna buy anything. Falls statements on parts is one reason. 169$ for a fucking tube and a pot filter, jesus christ. "Waterproof Short Ram Air Intake Kit" states "Optimized filter surface area provides more airflow, more power and more filtration" & "Can be cleaned using only compressed air" Worse filtration is the correct word, and you could easy damage a cotton filter with compressed air. Even K&N states that you should NOT clean it with compressed air. And i have seen the results myself. I could go on & on. One thing that i have learned is never trust a salesman. Especially his own "documentation" of performance. Anything can be tweaked to get a worse before and and a better after, with additional modifications that he doesn't tell you about. A graff doesn't proof anything from a salesman. The world is full of lies and falls marketing and crooks wearing sunglasses
Wow @GhostRiderDK2 - your ignorance speaks volumes. I was going to delete your post, but I'm going to leave it up a while so that people can see who NOT to listen to. 1. Anyone who purchases our Grom kit will not only feel the extra power, they will see on their speedo how much faster the bike is - facts don't lie. 2. We don't even sell K&N filters (talk about marketing hype...). It would disintegrate if you tried to clean it with compressed air as it is constructed of surgical gauze. Yep, the same spindly crap you put over a pusy sore... (yes, that's an intended reference) We offer Sprint Filter - the polyester material is very strong and specifically designed to be cleaned with compressed air ONLY. No gentle cleaners, oil or waiting for it to dry so you can ride. Here are some FACTS on how well they filter also: www.brocksperformance.com/brocknm/templates/bpp1.aspx?articleid=829&zoneid=22 3. A little present for you (troll): www.brocksperformance.com/images/BD_Social_Media_Troll_Meme.jpg Brock
Your little velocity stack looks good. Hopefully you'll be selling it soon. :)
Oh, by the way, at 2:50, you call it a MAP sensor but it's actually an Air Intake Temperature sensor.
I wonder why no spark plug change. Just a little hotter. A little bit more gap and a better plug goes a long way. And I really like the muffler on the bottom like that. I have seen others where the muffler is up near the seat and down low like that makes it look sooooo much better. Right on dude. Sorry about the crash. And you could have cut it out of vid and right on you did not. Thanks man. Your right lessons learned dude. Right on right on. Keep up the good work
The reason for removing the internal snorkel is to open up that intake passage. The "velocity" thingy closes it back down again although it shortens the "intake tube". Just cut the intake snorkel shorter and have about the same thing. My stock 2014 Grom tops out at 66mph with my 190 pound body on it. I'm working on some basic mods (pre-programmed ECU, Iridium spark plug, air box mod and a Hurricane air filter) to try to get it up to 70mph.
I have seen 72 MPH on mine, at 215 lbs. suited after I installed BST wheels.
that’s good as fuck mines stock @70 on the dot 2019 but i’m 150
Does a velocity stack do anything more than reduce turbulence at WOT?
The stock throttle body of the Grom has an ID of 24 mm. The inside horn's opening is 24 mm x 36 mm. The ID of that horn is 24 mm. The short adapter that mates the horn and the intake tube going out the back is 24 mm. The tube out the back has an ID of 24 mm.
So, if the main effect was coming from taking out the metal mesh screen, in that case stock filter < stock filter/screen removed < K & N filter < Koso Hurricane filter. Less restriction equals more air to the throttle body.
Dyno comes after 5 things were done. 1. Exhaust, 2. Filter mesh removed, 3. inner horn removed, 4. Velocity stack added, and 5. PC V installed (with map). The exhaust and Power Commander would make the greatest change, I would guess.
What would the results of a Dyno be with the stock horn left in?
Stack length determines effective intake length. (Stacks do not make power... they MOVE power). As a general rule; the shorter the inlet the higher peak power will be noticed - there is a law of diminishing returns, of course, and reducing the length too much on a 10 hp engine can hamper average acceleration. FYI: No stack whatsoever made the most peak power...but killed average. We tested multiple lengths before making ours available as a good mix for both as the stock stack did not match the new power characteristices when the high flow exhaust was added.
This bike is a great advert about how much rider weight makes a difference, i'm 5ft 6in and 120 pounds and took a stock grom out the dealer for a test ride and hit 64mph stock. So with all the great Brock's performance parts and mods I should be hitting a peak 20% power gain on that, lovely parts Brock, great company also :) (Hope you don't take offence about the power to weight ratio bit) - From the UK, ash bandicoot
+ash bandicoot lol, I take no offense at all. With a bike making the power of a Grom, weight and physical size makes a much larger difference than on a more powerful machine - and the mods make can have a much bigger difference also. With our Chimera intake kit, BST wheels and a slight gearing change, I top out at 72 MPH now and easily cruise at 55-60 MPH. You would REALLY fly. Thanks for the comment.
What's the slight gearing change? I'm a little larger than you and am interested in easily cruising at 55mph.
I also assume you mean that you have your AH2, PCV, Chimera intake, BST wheels and slight gearing.
Brock Davidson by chance do you have a good afr for a zoom loop exhaust and intake mod for a 2017 grom
Thanks Brock really like the Mod overview GR8!
please brock make this with the 2017 grom again..... the airbox is different on the 2017 Model
Honda give the inner tube another shape its now directing forward directly to the filter with a 90degree angle and also the inlet tube there is now an inner and outer tube
would be very interresting for us gromlins out there :-)
Awesome video! Thanks for the great info. Do you have a recommended tire for canyon carving? I also ride a Hypermotard with Dunlop Q3s and love the feel and grip of those. I just bought my Grom yesterday and want a stickier tire that warms up faster. Also, I didn't see the velocity stack in your website. When will that be available?
We have had great luck with the Michelins for the Grom. See below on the stack development. We jumped ahead a bit and now have an airbox removal kit with waterproof air cleaner (big power gains). call my staff for details - some items are not on our site yet.
well... my msx is a stock one! just took out the metal mesh and the small tube from air box and the top speed on the speedometer was 115kh/71.8mh !! on strait flat road.(i did the first 800km by 6000rpm)
Great job Ron! What do you weigh? and are you at a 'full tuck?" or sitting upright - like I am in our video's? Let us know... we "thirst for Grom knowledge"!!
Have you changed your sprockets?
ZMoto no. All stock except for the mods noted. Our goal was to show the performance gains of the products, not how fast we can go...that will come later.
the sensor in the airbox is an air temp sensor not a map sensor, map sensors are located between the throttle body and the engine.
Correct, we move the IAT during the Chimera inlet install.
Good video but doesnt running any bike with no baffle in exhaust burn valves out eventually
My grom clone goes 58mph stock and it was 800$ used with 97 miles on it basically new so im happy for 800$ total spent :)
@idrissmorocco23 no your wrong. The motor mount bolts snapped, I got new bolts at the hardware store. That's the only thing that's ever broken. I take care of my machines
@idrissmorocco23 do you see my comment was posted 9 months ago, I did 1,000 miles on the clone in just the first month. And like I said only the motor mounts snapped. I expected way worse. Im not a broke teenager thinking my shits better than everyone elses dont worry. I own a 50,000$ ford superduty 2016 dually worth plenty enough money to afford 3 Ducatis if I want but guess what I'm currently building a performance gx200 honda for a offroad minibike. I could get a dirtbike if I wanted, just like I could get a real grom. I got the grom clone because 800$ is throwaway money, I can wreck it and not lose any sleep. If I wrecked my actual honda worth 3k yes I'd be upset
@Tina The Pitbull and @idrissmorocco23 - please keep your comments civil. Discussion/debate is always good...unless it gets out of hand. Please read this before posting on our channel next time: blog.brocksperformance.com/brocks-performance-youtube-rules/ You both obviously have a passion for bikes, so we would hate to lose you.
Which is the best site to buy accessories for this bike, I mean performance enhancers like the ones shown on video.
We use www.brocksperformance.com to buy cool products :)
Hello I have a small question. In your opinion If I install an high flow exaust the rest of it must be larger diameter than stock or doesn't matter? Cause I installed one in my scooter but the manifold until the muffler it's the same as stock and it came all together. I see other full exausts and the diameters of the manifold are bigger. Thanks in advance.
That depends on design. Generally yes, larger diameter = higher flow= more power... BUT, if you don't also increase the air available to the engine, the results can suffer. A larger diameter pipe can hamper bottom end power if not properly designed. at Brock's we offer 'packages', so true overall gains are noticed. A small diameter system could help - if the cat is removed - but the gains are typically minimal... they are usually just noisy.
Hey guys! What was your A/F ratio? All you have is the PCV? no WB2? or autotune?
How did it keep the AF at 13 - 14 across the rpm?
dpgc9 go here and check out the dyno charts : www.brocksperformance.com/brocknm/templates/bpp1.aspx?articleid=655&zoneid=25 we shoot for 13.2 to one. We tune with our Dynojet model 250I with load control. If you purchase a Brock's exhaust, we offer free mapping to match a large combination of intake mods. We do all of the work, so you don't need to mess with the hassle or expense of trying to tune the bike yourself. Just plug in and GO!
Question , on GROM 2019 I ordered a power commander 5 , add said I needed this Power relay ? Connect 4 wires to Key power chassis RED to WBC2 But Power Commander paper work doesn't mention it at all , Please help me. Thank you in advance
We have not addressed the 2019 Grom, yet. Sorry. Please contact Dynojets technical department or fill out this form: blog.brocksperformance.com/product-request/
Can i run this set up( airbox mod and your exhaust) without a Power Commander?
Certainly, the bike will operate just fine. The thing you need to remember is that you have increased exhaust flow as well as intake flow. This disrupts the engine's optimum air-fuel ratio (AFR), which can lead to drivability issues as well as reduced performance. A Power Commander (PCV), with our custom map, will correct the AFR to where it needs to match the exhaust to the intake mods. The PCV can always be added later, or you might find the bike is just fine for your tastes without it.
All iv done is the air box modification and I'm hitting speed up to 68mph on good day 70 mph and I have no power commander or race exhaust on the bike just started exhaust all the way :)
fun stuff It drives me crazy seeing all these people with almost stock and stock groms sayin they hit 70 when I've spent over 1000 dollar's on performance mods and lightweight parts and i still cant get the thing past 64 can anybody explain that? Lol
That is because what he says is bullshit
@@lexxxus21 i finally hit 69 mph today but mine is believable after all the performance parts i put on lol and i was going at a slight downhill on the four lane there is no way a stock 9 hp grom has enough torque to hit 70 mph unless its going down a steep hill and also a stock grom doesnt even have enough power to hit rev limiter where as my grom has about 15 hp and it struggles anything past 64 i got it to 69 today and I was even surprised and even hitting 69 mph it was around 9000 rpms i dont even think a stock grom has the power to by itself hit 9000 rpms without a steep hill to ride down when my grom was stock i couldnt get past 57 mph
its not bs it depends mainly on your weight but also where you live... and yes anyone can get a stock grom to 70 go do a hill bomb... you should bounce the rev at around 73 or so maybe 74 if its a windy day with wind at your back you should also be hitting In the higher 60s.. im 140lb... this guy has 60-70 lb heaier then me... so of course ill go faster on that bike then him.. but theres not much he can do about that unless he lose weight but if you are hitting 60 that's good man. here I have two hills if I want to go out to the valley on one way the wind blows in my face max I can do uphill is around 47-50mph and drop to 3rd and then back to 4th to less stress it. on way home though wind is on my back I can go like 65 up the same hill...also hardly any street is level most are either uphill slightly or downhill slightly.. the main street by my house goes like 4-5 blocks to a 7 eleven if I ride my bmx even though it looks flat on way to the store I have to pedal all the way there... but on way home I barely have to pedal because it has a slight downhill. though if you stood there it would look perfectly flat its not. so vids can be misconceiving.. you never know the true factors ie slight downhill or even if its uphill if the wind is blowing 20mph on their back helping them a lot. since its not a freeway bike 60mph is good for city burning you can usually lane split(im in California) and stay ahead of the mob of cars and cops don't care if you are speeding a little because you aren't speeding like the bigger bikes blowing by at 100mph.. ive even rode with some motorcycle cops at 60 mph in the city and they don't care … the grom is the bomb.. I don't think you can get a speeding ticket on it even when you do speed and that is huge for a motorcycle. if you really want to go faster get a bigger bike if you really want a fast mini bike save up for the 250 or 300 swap and then it will be the bike you want. but the swap isn't cheap.
@@jdogg661420 Yeah i totally understand that and what helps you hit the higher speeds is when you atleast do the exhaust cause my bike wouldnt even hit the rev limiter just revving it in neutral till after atleast the muffler i read that they wont have enough hp to until you mod them a little and i also have a cb300f
Brock, good to know that you are ok.
Can you do this to a Benelli TNT135?
@Luis Calderon - I don't know, as we have not explored the Benelli.
Love your exuast,,Turner fabed 👍Do you ship to Australia 2021??
Yes, we ship worldwide. Please go here for more details: blog.brocksperformance.com/terms-and-conditions/
@@BrockDavidson thanks MR Brock,,,had a look,,the problem lies at my end(the Australian gov is closed its all down,,eg a letter from Germany took 8weeks,,,will make my order as soon as i can,,cheers 🍀
sounds 10 times better! sweet
Do you think if you changed sprockets for a few teeth you would have been able to squeeze more out of it?
Perhaps, but that would have disrupted this testing. There is no doubt the Grom responds positively to gearing changes. We now have two more teeth added to the rear, for quicker acceleration.
what map did you use
@qchar11 - Street Map 2
Do you recommend the chimera Intake ?
whats up bro,, I recently bought a honda grom 2017,, I really like that exsaust, the way it looks and love the way it sound and I will like it for my grom,, please send me info and price if you can. thank you
@Christian De La Paz glad you like - click here: www.brocksperformance.com/Alien-Head-2-Full-System-+I398607+C427.aspx
Thanks
i have done 65 on the stock grom ? So what are you selling?
Are you 225 lbs ?
nope im 185
@@dudehenry3 lol, never mind.
I'm going to buy the PCV from you and your short ram intake. Your exhausts are badass, but i'm a fan of the up high exhaust, and also a longtime faithful Yoshimura customer. I know i sound like a newb, but i'm no mechanic. I pay for all of my work to get done professionally. What will i have to do to get the proper map for that combo? Should i expect the same gains?
+chuckin clouds Excellent choice on our intake. Our maps are available with our exhaust purchase, if you go with another exhaust mfg. you will need to find another means of mapping your bike. That's another advantage of a Brock's exhaust purchase. Click here for more info (see Map Support): www.brocksperformance.com/brocknm/templates/bpp1.aspx?articleid=406&zoneid=22
Any good or bad effects if I remove the extension inside the air box and not install the aluminum one? I don't have a grom yet but I plan on getting one soon!
It causes a disruption in flow, low and mid range power suffers.
When will you be selling the velocity stack for the intake box?
At some point. But we have more powerful mods we are currently working with also. Please understand, we are not 'parts merchants' we don't sell items unless our R&D team proves they are the best for the intended application. We should have more updates soon!
bezrevs the velocity stacks are now available: www.brocksperformance.com/Billet-Velocity-Stack-+I204234+C442.aspx
so if I just take off the screen on the filter will the performance be noticeable?
+Tucker Toucan it helps!
+Brock Davidson how about change it to a high performance filter?
Ctr_ ls BIG gains! www.brocksperformance.com/Waterproof-Short-Ram-Air-Intake-Kit+I404994+C402.aspx
Man, I'm 190lbs and I can barely get my Grom to 64 going down a really steep hill in a full tuck.
I'm 200 and had the same problem. I can run 72 MPH now on flat ground with our full kit and bst wheels.
Would this work with a 2017 grom? Or would you recommend another modification?
@Steven - yes, this mod is available for your 2017: www.brocksperformance.com/Default.aspx?ItemID=204234. For a larger performance gain, we use this: www.brocksperformance.com/Waterproof-Short-Ram-Air-Intake-Kit+I404994+C448.aspx please give us a call if you need additional advice. 937-912-0054
I need a power commander smh I wish I knew somewhere to take mine here in Florida to get this done
Try our dealer locator for a dyno near you: blog.brocksperformance.com/dealer-locator/ - you can also try dynojets site.
About how much would these mods cost?
+Griton www.brocksperformance.com/Default.aspx?ItemID=204234
+Brock Davidson I see the velocity stack is 47$. Good deal for a clean, slick lookin intake. But are you selling the exhaust, flash and air box mod? I was wondering what the package would cost, installed, without the bearings. I'm sure there is a huge market for these mods in a package form. I couldn't find much besides the velocity stack.
+Griton check out our Grom info page: www.brocksperformance.com/brocknm/templates/bpp1.aspx?articleid=655&zoneid=25
Griton we have found that most Grom owners are DIY types and use our instructions and vids to mount our products as desired.
Was going to order some parts from BP. However you have to jump through about 20 hoops just to order. You have to be approved? A credit card isn't approval enough? I don't want another username or password to remember. I just wanna order some parts. Tried several times to create an account or profile, whatever. Just keeps telling me the email already exists etc etc. I'm not sure why you don't just have a checkout with paypal, or credit card info, like everyone else on the internet. It's super frustrating and being impatient and wanting to get my bike done, i'll probably order stuff off ebay. Not everyone is great with computers, passwords, or wanting to wait to be approved in order to order a couple parts. I'm sure I'm not the first person to be put off by the complicated ordering/membership. If i was you I'd fix it.
+chuckin clouds not sure what's up? We have regular credit card, PayPal etc. No hoops - please call 937-912-0054, click sales and ask for Steve, our sales manager, he will straighten your account up for you. You can also go to www.BrocksPerformance.com and click live chat 8am-5pm Eastern. Our staff is very responsive. E-mail me personally: bmail@brocksperformance.com if you need additional assistance.
I got it finally after 3 days. Hopefully it ships fast. Thanks for the help.
+chuckin clouds glad we got you sorted. We ship same day if your order was placed by 2pm - you will receive an order confirmation with a tracking number if you gave our staff your e-mail address. Keep us posted on your Grom!
Awesome idea. 💯 successful.
Mhhh i baught a grom used and it drives 118 kmh so 71mph
umm is it possible to buy this exhaust somewhere?
www.Brock@BrocksPerformance.com
+Brock Davidson oh thanks! That was definetly a fast reply! Thanks!
Its a REAL SHAME the NHRA won't sanction the jr drag bike 125cc class. Its awesome to.get 12-15yr old track time before theh can ride a 600 and an alternative to the Jr dragster classes that are really affordable.
Hell id REALLY LOVE a Jr Street bike class as well as the wheelie bar class for that.
I have never understood NHRA's take on jr. dragbikes. My son used to race mini motocross, he was running 50+ mph, in the dirt over JUMPS...and they won't let kids drag race. I'm sure the lawyers are involved.
@@BrockDavidson it really annoys me especially given that the F.I.A allow it so you can race in the UK and Europe on one from 11.
It wouldn't have to be difficult to write the rules. Rated Helmet and leathers. Clutch and foot shift only (with an exception for disabled riders to use a push button but have a manual clutch) 125cc 4 strokes with no Aftermarket ECU/BUMPBOX etc to limit the cost. Talk to the manufacturers about a 15" wheel limit A limit on ET and Time of say 100mph and an appropriate time for that trap speed run 3 classes.
'Stockkid' - stock wheelbase, stock cases, stock frame dot tyre.
'Streetkids' - extended wheelbase with a limit of 6-8" of stretch. Dot tyre.allowing aftermarket engines/swaps so a rotax 125 kart engine or similar would be fine in an aprilla chassis or an aftermarket version of the CG125 engine in a Grom frame.
'Topkids' custom chassis and engine with wheeliebars
Have the Twins and Single 4 strokes allowed to enter so we can have mini baggers or wheelibar 'Harleys' runng alongside the extended swingarm Suzuki.
Essentially set up so the kid can race the same type of bike as Mom or Dad.
Shit I'd build a set of fairings to make my niece or goddaughter's z125 look like my Ninja or her gsxr125 look exactly like someone has taken my 'superstreet' 68" Busa or Bandit and shrunk it down for them right down to the Brocks Echaust and cycledrag sticker. Get her the leathers and lid for her birthday and bike for christmas and spend every testt and tune we can at the track so at 16 I can put her on a 600 and 17 throw her the keys to the blown busa for.a pass.
Wouldn’t a chimera be a lot better😂
I need to play more video games...
My 70s pedal moped(highly modded) goes just as fast but gets there in under 4.5 secs and in California I only have to pay $20 once for registration no yearly fee. I am never getting a grom but I might get the exhaust because I swapped the old 2-cycle engine with a lifan 125cc (semi-auto grom clone engine with better bore x stroke 54x54 not like the grom 52.somethingX57 and my moped only weighs 134lbs wet and the grom 225lbe lol I have a rocketship compared to grom
lol, sounds fun! But who has the time to do all of that work?
Brock Davidson Took me three hours if you have a Honda CT110 weighs about the same and you can just directly swap a pit bike engine in with it congratulations you have a 140cc bike engine powered Honda ct110 that would only take 35 minutes at most for me to swap that engine who has the time, most people but then again I can’t blame you for not knowing how easy it was.
I much prefer cruising sith little mono cylinders. As well doing 90% city, like paris. Is better configuration in stock.
Mine does 73 and all I have is exhaust 💪🏼
That's awesome! Do you weigh 97 Kilos - like me?
Drivers Obsession If yours does 73 with just an exhaust I want you to ride mine that only does 64 with more than just an exhaust in fact ive done almost everything you can do to the 125cc motor besides turbo it and I've got over a grand in performance parts and lightweight parts and even if im going downhill i will not reach a speed any higher than 64 mph so i dont get how in the world you do 73 with just an exhaust...what do you weigh 50 pounds and i want your exhaust if it does that much more in reaching a higher speed than all of my stuff combined....
Yes it really does 73 most groms do mine is a 2015 and I have hotlap exhaust I will post a video showing my speed on my UA-cam this weekend it’s basically stock besides the exhaust and I’m lowered and stretched on ruckus forks
I don’t get how yours won’t go at least 70 if you have all those parts into it how many miles do you have? I have 5000 and it’s due for its oil change and I still have stock intake box I want to get a chimera intake btw my top speed is 73 and it hits rev limiter so I want to get rid of the governer I’m sure it’ll go faster I weigh 176 and I’m 5 9 tall
Drivers Obsession Ok ill subscribe to you with my real channel it will be a channel with a picture of a grom
I've gone 65mph on my Honda Grom stock air filter
Is that gonna harm your grom if doing that ?
No. We would never recommend a harmful modification.
+Brock Davidson Good and thanks ! also what is exhaust on grom ? :)
It's our Alien Head exhaust: www.brocksperformance.com/Alien-Head-2-Full-System-+I398074+C427.aspx
Brock Davidson like the videos man, the alien exhaust would work with the 2017 model right
Here is the link to the 2017 Grom: www.brocksperformance.com/Alien-Head-2-Full-System-+I398607+C427.aspx
I have a scooter (scarabeo street) that goes as fast as this bike right here and I've spent only 200€ on it. Just a 70cc engine, a sito exhaust and second gears for top speed.
The gearbox will be a HUGE PART of that. A C.V.T. Will eat something like half the crank horsepower.
Swapping this motor to a conventional gearbox would massively improve the speed especially if you gave it 4 or 5 fairly long gears for an LSR run.
Of course no replacement for displacement is obviously true.
My weigh is 87kg and 175cm high and i must say i never.. never.. never.. tuck on my bikes!!! of course my type of bikes are off road so i always sit upright and close to the handlebar. for wheelys i'm siting on the middle of the sit.(msx do not have enough power for it with stock sprockets)
should have built some frame sliders
Go on MSXaccessories.com
Very nice Sir,,, looking for to due that+++++
Personally I can't see the point making these things 5mph faster , If you want to go fast get a fast bike these aren't meant to be fast there meant to be fun which they are . I use mine on the back of my motorhome to get around from the campsites and it's great.
It's not about how 'fast' they can go...it's about how much quicker they can accelerate...in traffic. In stock form my situational awareness told me that anything above 35-40 MPH in traffic was uncomfortable - simply due to the inability to quickly move away from cars/trouble. After our mods, my comfort zone moved to 50-55 MPH. Please check out this dyno chart: bit.ly/3hxqi9q peak HP in the higher revs is increased around 30% and peak torque is increased around 25%. On a bike that drops down to 6hp in the higher evs in stock form - that increase is giant and easily felt. If you are putting around 10 mph campgrounds - the stock config is fine.
grom in thailand topspeed 100mph
..name msx125 cc
the only reason the top speed is 100mph in thailand is because the average man weighs only 80lbs
keetar show 100 KPH not mph
I just saw you are in Ohio I'm in bellville Ohio
my buddy got his to 70mph bone stock, i got mine to 67mph stock
That;s GREAT! I'm 225 lbs - and I'm not tucked. We just installed BST carbon fiber wheels, our Chimera intake with Sprint filter and added 2 teeth to the rear sprocket. I went 70 MPH, no problem! Anything 55 MPH and slower is partial throttle now (:
Brock Davidson You said it was a MAP sensor? I thought that was a Intake air temp sensor.
Ryan Nix nice catch. I mis-spoke on the vid and didn't think many (if any), would notice. ;)
Np I like what your doing and before you laid down the grom I was like damn He going into that turn hot. He really has faith in those 12 inch tires. Then bam you were down. I went o shit!
Gabriel Sanchez why not just het a bigger bike? or is it a hobby?
Now try Dinoing it without sitting on the bike get much better Gans
velocity stack is pointless .
Absolutely not true if you know where you want to move power to suit your application.
its not good for the engine
What's not good for the engine, Tank?
LMAO
He out here pulling 64 mph with all these mods - 2 days ago I pulled 78 mph with just an after market exhaust installed and no other mods at all
That's impossible, a stock Grom hits rev limiter at 73mph in 4th gear. There are people running big bore kits that can't hit 78mph, so I'm calling bullshit.
This is so disgusting that i want to puke. Especially the last part 9:09. Typical salesmen speech.
Think twice before you spend your hard earned cash, on money hungry crooks in the form of a salesman that tell you all the things you want to hear. Study, read and learn. and what is known and confirmed.
Rather than just listen to any guy telling you "This tube makes your motorbike get 5 HP more. Only at the cost of 169$! Buy it at my store!" And yes i looked at his store. Not gonna buy anything. Falls statements on parts is one reason. 169$ for a fucking tube and a pot filter, jesus christ.
"Waterproof Short Ram Air Intake Kit" states "Optimized filter surface area provides more airflow, more power and more filtration" & "Can be cleaned using only compressed air" Worse filtration is the correct word, and you could easy damage a cotton filter with compressed air. Even K&N states that you should NOT clean it with compressed air. And i have seen the results myself. I could go on & on.
One thing that i have learned is never trust a salesman. Especially his own "documentation" of performance. Anything can be tweaked to get a worse before and and a better after, with additional modifications that he doesn't tell you about. A graff doesn't proof anything from a salesman. The world is full of lies and falls marketing and crooks wearing sunglasses
Wow @GhostRiderDK2 - your ignorance speaks volumes. I was going to delete your post, but I'm going to leave it up a while so that people can see who NOT to listen to.
1. Anyone who purchases our Grom kit will not only feel the extra power, they will see on their speedo how much faster the bike is - facts don't lie.
2. We don't even sell K&N filters (talk about marketing hype...). It would disintegrate if you tried to clean it with compressed air as it is constructed of surgical gauze. Yep, the same spindly crap you put over a pusy sore... (yes, that's an intended reference)
We offer Sprint Filter - the polyester material is very strong and specifically designed to be cleaned with compressed air ONLY. No gentle cleaners, oil or waiting for it to dry so you can ride.
Here are some FACTS on how well they filter also: www.brocksperformance.com/brocknm/templates/bpp1.aspx?articleid=829&zoneid=22
3. A little present for you (troll): www.brocksperformance.com/images/BD_Social_Media_Troll_Meme.jpg
Brock
groms have 9hp.. for 3,000+ USD. they're pathetic. buy a real bike, not an imitation scooter.