HOW TO MAKE A SLOW JETSKI FASTER: GP1800R HIGH OUTPUT GOES 70+ MPH
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- Опубліковано 21 бер 2022
- Not everyone has the desire to buy a fully loaded supercharged PWC; if you have a naturally aspirated watercraft, it is not hard to make them out perform a stock supercharged PWC. With a few modifications, I had this customers GP1800R High Output accelerating harder and going faster than a new GP1800R SVHO.
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-Facebook: Greg Gaddis
-Instagram: @greg_gaddis1
PARTS INSTALLED:
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- POWER FILTER KIT: www.4-tecperformance.com/index...
- INTAKE MANIFOLD UPGRADE: www.4-tecperformance.com/index...
- SOLAS 11/15 IMPELLER: www.4-tecperformance.com/index...
- RIVA RIDE PLATE: www.4-tecperformance.com/index...
-MAPTUNERX (STAGE 1 8500 AGR TUNE): www.4-tecperformance.com/index...
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Thanks for showing what it can do naturally aspirated! Good mod choices.
Thanks!
Amazing video! Thanks for the info
few months ago i buy from mr jerry stage 1 kit to my vx hehe so exieted and now i have fulll instruction thx green hulk team
Glad we could help!
Great video I like the detail of the work. it is good to see you show the potential of the normally aspirated models. Great results for some basic mods keep up the great work.
Thanks!
What's your rpm on 70mph
@@rogernascimento5006 man id like to know the answer to this question aswell!
I added the ribbon delete and the same air filter for a big improvement. After some exhaust mods, I had to go up 1 degree on the stock impeller with great results. A few teething problems... the air filter actually unscrewed itself and fell off on the first test run lol. I just safety-wired it. Also, the air breather was puking oil on hard left-handers so I re-mounted it up high underneath the front seat bracket. Otherwise, I highly recommend these mods
Now this is a good video
Thanks!
Duck 🦆 Off looks like he traded up for some Eagle 🦅 wings! Great transformation Greg. I bet Jody must be stoked. Great content as well. Thanks for sharing!
Billy D
He’ll definitely be hurting some feelings this summer
Great Video Greg! I have the exact same waverunner color and all,already installed the Riva air intake,may need to go ahead get the impeller and remove spark arrester. Looking forward to mini Mudbug in Apr!
Awesome! I’ll be there 👍
And the ride plate.... Definitely get the ride plate!
Love the info! Getting a new 2023 fx ho next month, what are the initial mods you would suggest. I want a dependable ski, spreed is great but dependability is most important because i want to go touring with it and dont want to kill the gas mileage!!
Thanx again!!
Wish you were in Wisconsin !
Great video!!! I’d imagine you would get the same results from a VX Cruiser HO? Also, will we see the stage III GP vs the Seadoo anytime soon lol?
Yes and yes..the parts needed are on the way to me now
great video .the 11/15 is like throwing dirt in someone’s eyes to win a fight .no mid hopeless from stand still .13/17 feels stronger but a lot more work to push that
13/17 is definitely a lot more on a H.O.
What other work can be done? I already got riva intake/ freeflow/ waterbox/ reboon delete/ seal kit/ maptunex and prop 11/15 pitched to 11/17… i only hit 69mph on gps in flat water and seat off, what else could i do?
#2019gpho
Riva Racing Ride Plate might net an additional 1-2 mph.
@@DrkRydrProductions man i hope so! It doesn’t look much different then mines but worth a try! Im going to be ordering one soon!
@@rickohlson3962 what other work could be done?
What are your thoughts on the pump wedge for a 2015 FX HO for a better ride through the chop? Trimming up doesn't seem to do much
& we need someone to do some flow # on all this filters out there.
Should of raced a stock vs this one.
Can you do this to a yamaha jet boat with the same ho motors?
How can I get my impeller pitched?
What is the best year supercharged yamaha to get used. I’m looking to do another build.
I have the exact same waverunner. I did the Stage 1 tune, Solas 11/15 impeller, Engine Breather, Intake, Gen 2 Ride Plate, and Riva Free Flow exhaust. I went from stock 66 mph to reading 72 mph on my speedo (not GPS). I raced a stocked GP1800r SVHO and beat it. Next is the Riva Pro Series sponsons.
Awesome! The dash is based on engine RPM (this ski’s dash read 74). GPS speed stock would’ve been around 63
What are the risks of removing the flame arrestor?
Really the biggest difference between the 2 as they are both restricted by the coast guard Is acceleration now the SVHO is way quicker on acceleration than a ho
👍👍👍
I have in my kit impeller 11/15 and what now?
how is the acceleration compared to say a stock SVHO?
🔥💯👌🏽
Got the same mods on my 2015 VXR and can't seem to reach 70. Got 67mph and I weight 180lbs and that with half a gas tank. So close but not there yet1
Excellent video Greg! Any idea what RPM you were at? What is considered "too high" for RPM in this build?
8300 RPM. The rev limiter was set at 8500 RPM and I like to stay 150-200 RPM below the limiter
@@GreenHulkGarage maybe try one more degree up. You might get 71
This is awesome Greg, just wondering… I am about to receive my JetBlaster, could I possibly do the same concept to get a bit more power? Thanks! :)
Yes, absolutely
www.4-tecperformance.com/index.php?main_page=product_kit_info&cPath=521&products_id=12874
do a yamaha ex Please
Hows the fuel miliage after mods
do u guys have a step by step svho manifold ribbon delete vid.?.i got the kit from u all last sept..but season was over and didnt complete..and lost the riva directions..vid would be easier anyway..thanks!!
The install of the ribbon delete is in this video:
YAMAHA GP1800R STAGE 2 INSTALL + ENGINE FAILURE!!
ua-cam.com/video/D33JW5hwvsU/v-deo.html
I did something similar to this to my XP limited. increased airflow made a significant difference in performance and reliability. Would an upgraded chip make a difference?
but mog ranfe droped
Yamaha should kept the ho, same name of vx/vxr, i need to look harder for ho or svho now, to see which one is which l
How much performance gain would you think there would be out of a fx ho. 8-10 mph gain on this ski. I’m running 60 on my fx ho. Figuring I would see 68-70 on dash.
Curious on your thoughts.
I got a buddy with 20 fxho and did the intake/ freeflow/ prop/tune/rideplate and hits 68 constantly!!
Can you do a race comparison this vs svho now ?
I’m sure I can make that happen
Great video man. Quick question so would I get any benefit if I install a 2020 ride plate from a gp1800r into my 2018 gp1800?
Yes you would. An even better upgrade would be the RIVA ride plate.
@@GreenHulkGarage thanks for your respond..looking to get one in the near future..
Stupid question, I know, but what do you estimate to be the loss in fuel efficiency if any? Thanks in advance, love the content.🤙
No loss in fuel efficiency
thiñkeß
Awesome video I've been looking for something like this I have a 21 GP HO and I've been wanting to do a ribbon delete and the air filter question is I live in Colorado and the Lakes I ride at are anywhere from five to six thousand feet what pitch prop would you recommend or what else would I have to do everything stock right now and I'm maxing out about 6800 RPM with these mods can you still run regular gas or do you have to step up to Premium
I’d start with the solas 11/15 and take pitch out if the impeller if necessary
Hey Greg, similar question. 900ft elevation but 240lb rider. Stay 11/15 as well?
yes
So so we need to run premium fuel?
On a 2021 VX cruiser HO 1.8, Would only the Riva power air intake make any difference? (i'm in the caribbean / high outside temps)
A very small difference. You really need the entire stage 1 kit. All components of this kit work together to improve the skis performance.
Would an intake, ribbon delete, and ride plate make much of a difference on a VX TR-1 powered machine? (Not looking for topspeed as it is the kids ski, but looking for it hold speed better in when turning and burning - I love the light weight of the machine with TR-1. (owned a VXR and GP1800R SVHO in the past with this hull)
Ribbon deletion on the TR-1 isn't too popular and I've not seen a post from anyone saying that it made a difference without other mods. It's also a PITA to remove on a TR-1.
@@simonwallace699 I didn't get a chance to ride it in the fall after removing it. I am more curious how it rides with the new ride plate and intake. I am keeping.my eye out for a gp1800 SVHO to replace it. If a deal on one pops up on one I am planning to jump on it.
Do all changes to engine performance require some kind of tune? Can I add the power filter and intake manifold upgrade without a tune?
It does require a tune. You run the risk of the engine running lean with intake upgrades without a tune.
@@GreenHulkGarage Riva tune?
This is using the RIVA Stage 1 AGR 8500 tune
Is it possible to make a 2021 sea doo gti 130 go somewhere close to that speed it’s my first jetski and would like to go faster than 50mph
You can modify it, but it is unlikely it will go this fast. The GP1800R hull design is a very fast hull (much faster than the Sea-Doo GTI)
Can you still run 87 octane with these mods or do you have to now buy premium? Is premium readily available at most places on the water?
Premium fuel only. I’ve never had an issue not getting premium while on the water r
Normal for the ski to sound a little louder after the power filter kit ?
Yes it is
It all depends on the cost of the parts. If i can get the supercharged one for the same price as the na motor with the mods then id just do the supercharged one
I agree, but some people prefer the fuel efficiency of the H.O.
@@GreenHulkGarageand better reliability.
How much less fuel efficient is it now? How about vs stock while cruising at 40mph? Maybe it is actually better mpg at 40mph?!
I don’t know exact fuel economy but from my experience these skis are more efficient when cruising around. Obviously, if you ride hard it will drink the fuel.
Do you have a part number for Ribbon delete for 22 Gp1800R HO?
www.4-tecperformance.com/index.php?main_page=product_info&cPath=344_364_114&products_id=904
What is the parts price for this project. Just got a 2023 VX 5 hours on the clock top speed so far is 64 mph. Some say it will hit 68 after it is broken in a little more. Not saying it will hit 68 as much as I’m asking if theses mods will be worth the investment on the VX platform
This is the stage 1 kit we installed on this ski
www.4-tecperformance.com/index.php?main_page=product_kit_info&cPath=355_202_451&products_id=7659
Would it be ok to do everything except the impeller? I have everything ready to go but my impeller is on back order, I’m in Australia 🇦🇺. Could I run the ski upgraded until my impeller comes or should I wait and just do everything together.
Yes, you can, but performance will be best with the proper impeller. The GreenHulk store has your 11/15 impeller in stock. We ship to Australia every day 👍
www.4-tecperformance.com/index.php?main_page=product_info&cPath=350_94_96&products_id=7815
@@GreenHulkGarage dam it, I should’ve order off you in the first place, I didn’t realize you shipped to Australia. Thanks for your time, answer and instructions on this video. Keep up the excellent work!
@@JoshDK- it’s not too late. You can make the order and we will get it right out.
@@JoshDK- www.4-tecperformance.com/index.php?main_page=product_info&cPath=350_94_96&products_id=7815
Does it do 70mph in the opposite direction ? It looks there is a steady current in that waterway..
Yes it does
There’s absolutely no current in the waterway we test in. There is a lock at each end of this waterway and the locks are closed. No current.
that RXP-X Stage 3 When is Coming ?
It’s in the process of being installed now, the video will be released a few weeks after it’s completed
I got a 2019 vxr and ive done a bunch of stuff and still going 63-64 😒, did the cold air intake, ribbon delete, free flow exhaust, riva waterbox, maptunx and pitch stock prop and is still getting a top speed of 64, on a flat surface and rear seat off it goes 65.5, what am i doing wrong?
Update i put a solas 11/15 pitched to 11/18 and now top speed is 67mph, go pro gps speed, what am i doing wrong
Did you get any better results? You might have gone a bit far on your repitch going to 11/18 it might not be able to push it, try 11/16 it’s the sweet spot.
Hi bro the 11/15 solas impeller is good for a gp HO 2020
Yes! This is the one you want
www.4-tecperformance.com/index.php?main_page=product_info&cPath=350_94_96&products_id=7815
How that impeller help what I feel in the reaction in the gp
@@GreenHulkGarage right now i think to buy a ribbon delete and a free flow exhaust but right now is completely stock
I know this is a stupid question but I can’t help myself. How does doing this effect reliability ?
It has zero effect on reliability.
Ive been waiting a year for a reply 😢
Can you do this to a 1999 Kawasaki 99 ultra 150
dont know
think new one had 140 hp tdi het drice
Did you have to tune it?
Yes! With the MaptunerX. That’s the most important part of the equation 👍
www.4-tecperformance.com/index.php?main_page=product_info&cPath=316&products_id=4250
What if you tune it as well ?
It is tuned. We use the Maptuner to tune it www.4-tecperformance.com/index.php?main_page=product_info&cPath=316&products_id=4250
@@GreenHulkGarage crazy my VXHO hits 68 without a tune
🥱 top end isn’t why you go super charger.
Is this with a stage 1 maptuner x or without it ?
With it
@@GreenHulkGarage so please tell me when this is tage 1 tune you must change Oil and do service earler than normaly?
@@jetskiordie3448 You should do that anyway. its cheap insurance
Is this the same for a 2023 model?
Yes, it’s the same kit for a 2023 model.
i wouldnt say its a slow ski by any means
Does any of the mods void warranties?
Here’s a good read about warranties. No mod “voids” your entire skis warranty
www.greenhulk.net/forum/personal-watercraft-performance-skis/yamaha-pwc-performance/yamaha-pwc-performance-4-stroke/262395-
Cant find an answer to: Does this void the warranty?
yes, it will void your warranty.
My filter spins. Is that normal?
Is the filter spinning or is the velocity stack spinning?
Will this Riva Ride Plate work on my 21 FX Cruiser HO? I seen it would work on the VX Models… Also where would I get a price on letting you do a stage 1 upgrade on my ski? Thanks
You will find the stage 1 kit on sale at a discounted price here in our store
www.4-tecperformance.com/index.php?main_page=product_kit_info&cPath=355_202_500&products_id=8973
This is the ride plate you need
www.4-tecperformance.com/index.php?main_page=product_info&cPath=350_94_292&products_id=6569
Thank you for your business!
@@GreenHulkGarage Hey Greg, the stage 1 kit above says performance increase to 64 mph vs 70 in your video - what's missing? Thx!
weird I thought these go 70 out the box and 80 with a new prop, wear ring, gate. ride plate and bov. kinda a bummer
nvm I'm dumb. I thought this was the RR super charged 😄
greg how much do you think it improve with the map tuner?? thank
It is a huge improvement
@@GreenHulkGarage i have a VXR 2011 and i rich 70 mph with the ribon delete solas 13 19 impeller and the conic air filter i havent done the ecu map
If I did,,do you think if would get even better?,,,how much more?? the engine have 600 hours
@@jlc7562 are you using a GPS to measure speed? The stock dash is not accurate. With the MaptunerX reflash you will gain 3 mph and have much better acceleration.
@@GreenHulkGarage Yes Greg i did measure it with GPS The GPS actually reached 115 km/h around 71.5 MPH I was also surprised..maybe the engine is well softened..
@@jlc7562 that’s good numbers! Our 2011 VXR ran 73 mph with the MaptunerX and those mods along with Riva rear exhaust and water box.
Does this tune require 93 octane?
91
What is 91 in uk
Greg, appreciate all you do. In my opinion it was a waste to put all this time and money into a gp na when the supercharged one is cheaper stock and more reliable than modded out a na one.
I agree with you that a SVHO is the way to go. This customer was happy with the results; if he is happy, then I'm happy. These mods though do not hurt reliability in any way. It is only allowing for the engine to run more efficiently which is why it had gained 7 mph over stock.
@@GreenHulkGarage glad to hear your customer was happy. im at a dilema wondering to wait and spend 10 grand on the alleged 2023 spark 185 ace or spend w you guys on parts 2 grand and make my 2016 fzs go 80....
That's a tough decision. The new spark is going to be an animal but its hard to beat an 80 mph FZ!
@@GreenHulkGarage guess ill still think and wait
How many mph increase ???
Stock is 63 on GPS
That’s huge gain for amount of money spent impressive!! So that intake upgrade is pretty important part ? Guess I need to do it for my gp that’s the only part missing of my stage 1 plus
Now lets put a Turbo on it and see how an HO does turbo charged!
With as much compression as an HO has it definitely wouldn’t take much boost to make it fly
Hey, I have a 2021 VX cruiser HO. I purchased the power air filter kit and ribbon delete. I noticed the work space is too tight for the air filter to fit through the top deck. I take it I have to remove the top deck off the machine? Is it sealed or no?
You’ll have to remove the deck under the seat. It’s only 7 bolts, not sealed, and very easy to do
chiéf wañt libger rabfe not speed
ρгό𝔪σŞｍ
What is all that blue chit' around spark plug coils ? if its elec grease for gloria de Jesus sake wipe it off. presuming owner did that not the mechanic.
The dealer did that!🤦♂️
Slow is all relative... 65 to many is fast outside of enthusiasts... 70+ on the water is crazy fast to 99% of people.
This is true
Like we need 70mph jet skis 50 is too fast for these!
Absolutely we do! Stock skis are boring 😄
a spark and an odouls for this dude
wring 35 móh too fast
I’ll bet it doesn’t accelerate as fast as a stock supercharged jet ski.
Seems like a waste of parts and money. If someone wanted a fast ski they should have just gotten the SVHO model instead of adding parts to the NA ski. Plus the SVHO has the possibility of even more power when the owner feels like it while this NA is maxed out. And you know that the type of people who add mods are never going to be satisfied with 70mph. The owner should have just saved the money for an eventual trade for an SVHO.
Well all of these mods were cheaper than an SVHO, it gained 7 mph over stock, the fuel economy will be better, and in this case the color scheme matched what the customer wanted. So you may see it as a waste of parts and money, but the customer got exactly what he was looking for
Also no SC clutch to replace!
@@strvph64 only fools smoke their clutches
@@bob-a-louannamaria7960 all clutches will fail. Ask a Gaddis. The hours to failure are a function of the rider, agree on that.
Many reasons to go NA over SVHO. Up front cost, ease of maintenance,cost of maintenance, reliability, overall fuel efficiency, and reliability. I actually wanted to find the fastest NA ski and found a 2016 VXR. After a demo ride on a kaw 250 x, which was impressive, 2 hours and 20 gallons of 93 octane fuel. I was left watching the Yamaha's running around the lake for several more hours. The reality is I wanted to trade off some performance for more run time, since getting fuel on the lakes here is expensive and sometimes difficult. Different people have different needs , you may think it's a waste of money to buy parts that make a ski a little faster, I think it's a waste of money to dump 93 octane fuel into a ski.