To accurately measure your pressure drop over the cooler, just put two pressure gages in, one before the cooler and one after. Subtract the two, and there is your drop. Pressure is flow dependant, and it is best to do on the actual motor, so that's consistent. My feeling is that it has plenty of flow. An automotive cooling system runs around 1 bar of waterpressure (i think you could be running 0.5 bar at best). Water is way more viscous than air. Again, I love the work!
Bro, you’re so damn smart! I really appreciate this advice. I’ll do the pressure drop test in one of the upcoming videos as it’ll be super interesting.
You won’t get enough boost to ACTUALLY use that intercooler. Turbos work on pressure ratio’s (at the inlet) as a function of engine flow rate (corrected for flow rate for ATMOSPHERIC pressure). You won’t get enough revs out of a 125 with a good volumetric efficiency at the revs you’d be running anyways to get any sort of meaningful boost (even with that tiny turbo) BUT if you compound turbo it and you factor the pressure ratio’s together… so 4psi of boost (1.27 pressure ratio) increases to 9psi of boost (1.27x1.27=1.62 pressure ratio) which cause a ‘chain’ type reaction in the system to actually force more flow rate and then force more boost. You’ll see probably 15+ pounds of boost with a compound on that motor and with the fuel injection would run great and then you’d actually be using the intercooler.
Haha , i have an 200cc motorcycle in storage almost for almost 10 years. I wonder if it will start and slap a turbo on it 😂 #turbolife 🎉 Love the build!
On the hot side you should have made a full loop with the pipe. It would look SICK AND GIVE YOU MORE LENGTH AND VOLUME annnndd would look like you have like a 2nd turbo sorta if you can picture it you know what I mean
Hey I built one close to yours last year, very fun build! Pro tip-find a power wheels body of your choice I.e: mustang, bmw, truck, military tank. Hollow out, mount over body, and slam it. Looks fantastic!
I was thinking about the flow and pressure drop before you mentioned it... and I actually think, that because of the time it takes for the pressure wave to reach the inlet after it's creator has left the exhaust port (the reason there needs to be a chamber to store boost rather than send it backwards like a two stroke exhaust does) the higher pressure on the hot side may stop bleedback from the cold side. the pressure difference may just work to your advantage. I'm also thinking that 2 boost gauges (one on either side of the intercooler) for testing purposes would be interesting, But yes the standard is pretty damn good. It's looking awesome!
Awesome work Mike!!!! Love to see your talent and ingenuity on such a killer project. That wheel and hub fit nicely in my Infiniti g20t btw! Thank you again for hooking me up with such a killer piece
A great tip that's gonna save you so much head ache and disappointment add a plenum if 125cc shoot for 500cc or a bit more. It won't make much without it and it's gonna be hard to tune. I have a 155cc compound bike that's over 100hp on ridiculous boost it's been a idk how long r&d project of mine and pre plenum we struggled to get any meaningful power. Not to suggest your gonna get over 50hp with one turbo 😂 on a 125cc but you can get pretty close. I prefer carbies but to each their own just when making a new intake you can plum the plenum either between the tb or after but tuning will be easiest engine plenum tb and runner length matters alot they make boost up top as singles and have back pressure issues quick so make that runner longer. Were a bit bigger but saw a solid 20% gain in the usable powerband by making the runner about 10in longer. This is on a xr based engine but similar enough. You can also use the world's fastest postie bike as a great reference I copied a lot myself and when I didn't listen I ended up at the same conclusion eventually like the turbine housings being way too small. FYI they got a semi reliable 60whp on 45psi of boost on a bone stock motor so they can take more than one stage of compressor can give. Looks like your going the vz21 route id suggest a vz45 as the exduser is bigger on the compressor wheel and spends less time in surge along with a bigger turbine wheel so the back pressure is reasonable. Back in our single turbo days we tried everything we could get and the vz45 was best by miles and didn't complain too hard making 30psi although the Chinese so sell billet wheels for them I was able to message seller and get a few custom ones with the absolute limit on exduser size and an extra blade to help the efficiency at higher pr and move that surge line down further. Keep in mind the vz21 wants to see that engine make 30hp before it's out of surge and the vz45 only needs to see the flow of 20hp the custom ones we have would get happy around 20hp too but we were able to lean on them all the way to 50+psi although they don't live long after 40psi as they have a 270° thrust bearing. Carbies make the mixture cooler and you can chill your fuel with dry ice and well we don't need an intercooler although the latest version does have two and it certainly helped us get over the 100hp mark. Oil pressure is an issue although if weight isn't a huge concern an electric pump would be best then you could have a totally independent oil tank just for the turbo.
The scale of the intercooler is hilarious! It looks so fricken cool though, the pie cuts are beautiful. Way too cool Mike! Really gave this thing a birthday. Excited to see it in action. Also, I do agree the intercooler would do similar things as a plenum. Adding volume. Smart man.
Keep it coming killing it very high standard 🫡 your learning lots of new skills as you build not bad for cool lil turbo quad next project needs to be something mini too 😬🏴
There is a guy on UA-cam call Sean N that has a turbo kart that will boost over 20 psi that uses an intercooler. Unfortunately I don't think his will even do stu stu stu.
Not sure why automotive youtubers doesn’t do things like this more often. Its a portion of what a car build would cost and it brings curiosity out of potential subscribers. It only attracts viewers.
Wow nice to see you reading the comments and responding to the plenum I think your right the intercooler should help do the same process and store boost so fair play bro I love it ❤don't forget about your vacuum pipe for wastegate
You could measure the pressure drop by static pressure. Fieldpeace makes a static pressure meter. You’ll have to rig up something like a leaf blower. Connect the leaf blower to one side of the intercooler and you’ll have to put one hose on one side other hose on the other side and measure the static pressure. or something.
you need to cut them ugly triangle bars off the front and make two brackets and get two minie quad bike shocks and put them on the front like coilovers that would look nuts with the intercooler and would give it more of a drift kart / drift car look
Put a cap, with an air line on one side of the intercooler. Get a baseline of what the inlet pressure is. Put an airflow meter on the exit side. Calculate the difference.
OMG! That is siiiiiick! Love this build coming from a humble 49cc to a full blown turbocharged, EFI 125cc death shifter go kart love it mate! Can’t wait for the end results of this bad boy.
@@itsmikelake your are so welcome bro. I can tell that you can’t wait for the end results either. Have you thought of installing a waste gate/ dump valve on it? That would be sick as f.
All I have to say is to get some grommets on that rad. Bc the mounts like that will be destroyed. You’ll be in a world of trouble. Bc it’s going to vibrate a lot. All that vibration is going to find its way down to them mounts and break off
@@itsmikelake yea. Theory the motor shouldn’t have move like a normal vehicle. No dampners. But the rubber on the charge pipe should dampen it some. But the air still would possibly vibrate the cooler. Hopefully u didn’t get too far into the cooler building 😂
Really enjoying this series so far! Maybe you should try running nitromethane in the car? It will give it an extra bit of kick. Must richen the mixture though.
Part 5 is here! ua-cam.com/video/Q1viCtZfnkQ/v-deo.htmlsi=5viA48zgG1itPQwM
To accurately measure your pressure drop over the cooler, just put two pressure gages in, one before the cooler and one after. Subtract the two, and there is your drop. Pressure is flow dependant, and it is best to do on the actual motor, so that's consistent.
My feeling is that it has plenty of flow. An automotive cooling system runs around 1 bar of waterpressure (i think you could be running 0.5 bar at best). Water is way more viscous than air.
Again, I love the work!
Bro, you’re so damn smart! I really appreciate this advice. I’ll do the pressure drop test in one of the upcoming videos as it’ll be super interesting.
The only thing I hate about these videos is when the video ends 😢 keep up the amazing videos bro. Kia Ora from New Zealand 🤙
Thanks so much for watching & supporting bro! ❤️
You won’t get enough boost to ACTUALLY use that intercooler. Turbos work on pressure ratio’s (at the inlet) as a function of engine flow rate (corrected for flow rate for ATMOSPHERIC pressure). You won’t get enough revs out of a 125 with a good volumetric efficiency at the revs you’d be running anyways to get any sort of meaningful boost (even with that tiny turbo) BUT if you compound turbo it and you factor the pressure ratio’s together… so 4psi of boost (1.27 pressure ratio) increases to 9psi of boost (1.27x1.27=1.62 pressure ratio) which cause a ‘chain’ type reaction in the system to actually force more flow rate and then force more boost. You’ll see probably 15+ pounds of boost with a compound on that motor and with the fuel injection would run great and then you’d actually be using the intercooler.
At one point wasn’t this a budget build drift kart🤔😂 amazing job 👌🏾
….I got carried away 😅👀 haha
I celebrated so hard when I saw this post
Same
Imagine a bash bar front and rear
put spark plugs in the exhaust
Well probably go one better and tune in a two step button 😛
People witch think he should take it to the Dino
👇👇
We’re definitely taking it to the dyno 😁
When this is finished, you've gotta fit a home-brew spark plug flamer kit haha
make a cage for the intercooler so it dont break
Thing is lookin WiCkEd !
Could imagine a alu sheet cut chin spoiler across the front and a Alu sheet one off aero spoiler on the back
Haha , i have an 200cc motorcycle in storage almost for almost 10 years. I wonder if it will start and slap a turbo on it 😂
#turbolife 🎉
Love the build!
It's 3:42 for me lol
can’t believe you bent the fins on your brand new rad/intercooler
Thank you for all time and effort that you put in these videos
Thank YOU for watching and enjoying them 🥰
Just curious are you using a bandsaw to cut pies??
Bailey cuts them for me on a bandsaw yep! I can’t wait to get one in at the shop 😍
I’ve been waiting so long for this video 🎉❤
Thanks for supporting bro 🥰
That looks very cool 🔥
Flamethrower kit plss❤
Guaranteed 😛
On the hot side you should have made a full loop with the pipe. It would look SICK AND GIVE YOU MORE LENGTH AND VOLUME annnndd would look like you have like a 2nd turbo sorta if you can picture it you know what I mean
Hey I built one close to yours last year, very fun build! Pro tip-find a power wheels body of your choice I.e: mustang, bmw, truck, military tank. Hollow out, mount over body, and slam it. Looks fantastic!
I was thinking about the flow and pressure drop before you mentioned it... and I actually think, that because of the time it takes for the pressure wave to reach the inlet after it's creator has left the exhaust port (the reason there needs to be a chamber to store boost rather than send it backwards like a two stroke exhaust does) the higher pressure on the hot side may stop bleedback from the cold side. the pressure difference may just work to your advantage. I'm also thinking that 2 boost gauges (one on either side of the intercooler) for testing purposes would be interesting,
But yes the standard is pretty damn good. It's looking awesome!
sounds good i might try that for my drift trike
Awesome work Mike!!!! Love to see your talent and ingenuity on such a killer project. That wheel and hub fit nicely in my Infiniti g20t btw! Thank you again for hooking me up with such a killer piece
A great tip that's gonna save you so much head ache and disappointment add a plenum if 125cc shoot for 500cc or a bit more. It won't make much without it and it's gonna be hard to tune. I have a 155cc compound bike that's over 100hp on ridiculous boost it's been a idk how long r&d project of mine and pre plenum we struggled to get any meaningful power. Not to suggest your gonna get over 50hp with one turbo 😂 on a 125cc but you can get pretty close. I prefer carbies but to each their own just when making a new intake you can plum the plenum either between the tb or after but tuning will be easiest engine plenum tb and runner length matters alot they make boost up top as singles and have back pressure issues quick so make that runner longer. Were a bit bigger but saw a solid 20% gain in the usable powerband by making the runner about 10in longer. This is on a xr based engine but similar enough. You can also use the world's fastest postie bike as a great reference I copied a lot myself and when I didn't listen I ended up at the same conclusion eventually like the turbine housings being way too small. FYI they got a semi reliable 60whp on 45psi of boost on a bone stock motor so they can take more than one stage of compressor can give. Looks like your going the vz21 route id suggest a vz45 as the exduser is bigger on the compressor wheel and spends less time in surge along with a bigger turbine wheel so the back pressure is reasonable. Back in our single turbo days we tried everything we could get and the vz45 was best by miles and didn't complain too hard making 30psi although the Chinese so sell billet wheels for them I was able to message seller and get a few custom ones with the absolute limit on exduser size and an extra blade to help the efficiency at higher pr and move that surge line down further. Keep in mind the vz21 wants to see that engine make 30hp before it's out of surge and the vz45 only needs to see the flow of 20hp the custom ones we have would get happy around 20hp too but we were able to lean on them all the way to 50+psi although they don't live long after 40psi as they have a 270° thrust bearing. Carbies make the mixture cooler and you can chill your fuel with dry ice and well we don't need an intercooler although the latest version does have two and it certainly helped us get over the 100hp mark. Oil pressure is an issue although if weight isn't a huge concern an electric pump would be best then you could have a totally independent oil tank just for the turbo.
The scale of the intercooler is hilarious! It looks so fricken cool though, the pie cuts are beautiful. Way too cool Mike! Really gave this thing a birthday. Excited to see it in action.
Also, I do agree the intercooler would do similar things as a plenum. Adding volume. Smart man.
Keep it coming killing it very high standard 🫡 your learning lots of new skills as you build not bad for cool lil turbo quad next project needs to be something mini too 😬🏴
Love❤ from India😊.
I think you should paint the frame black and maybe 🤔 some more joints.
Oh my goodness you’ve outdone yourself this time, cant wait to see it ripping some skids❤😂🖕🇲🇽💨🔥🔥🏁
loving the build mate if you have trouble getting the intercooler to flow Rb racing in the US make mini intercooler's for harley davidson's
An old top mount intercooler off a series 4/5 RX7 or top mount off any early WRX would work perfectly.
There is a guy on UA-cam call Sean N that has a turbo kart that will boost over 20 psi that uses an intercooler. Unfortunately I don't think his will even do stu stu stu.
Not sure why automotive youtubers doesn’t do things like this more often. Its a portion of what a car build would cost and it brings curiosity out of potential subscribers. It only attracts viewers.
Wow nice to see you reading the comments and responding to the plenum I think your right the intercooler should help do the same process and store boost so fair play bro I love it ❤don't forget about your vacuum pipe for wastegate
You could measure the pressure drop by static pressure. Fieldpeace makes a static pressure meter. You’ll have to rig up something like a leaf blower. Connect the leaf blower to one side of the intercooler and you’ll have to put one hose on one side other hose on the other side and measure the static pressure. or something.
Yo love the vids man keep it up. Btw what was the pipe/hose called running from the radiators to the turbo?
Bro how much do you want for it 😍, I need this thing it looks amazing and very powerful
you need to cut them ugly triangle bars off the front and make two brackets and get two minie quad bike shocks and put them on the front like coilovers that would look nuts with the intercooler and would give it more of a drift kart / drift car look
Put a cap, with an air line on one side of the intercooler. Get a baseline of what the inlet pressure is. Put an airflow meter on the exit side. Calculate the difference.
Id love to do this with my ssr dirt bike motor. Haven't decided what I want it on tho. Its on a janky go kart rn.
the turbo needs a dose pipe!!
You know this is happening 👌🏻
Hey bro you going Calder park on 24th may for keep rest event
OMG! That is siiiiiick! Love this build coming from a humble 49cc to a full blown turbocharged, EFI 125cc death shifter go kart love it mate! Can’t wait for the end results of this bad boy.
The journey has been a crazy one so far hey! Absolutely loving it. Thank you bro 🥰
@@itsmikelake your are so welcome bro. I can tell that you can’t wait for the end results either. Have you thought of installing a waste gate/ dump valve on it? That would be sick as f.
What efi set up is that. I was doing a atmosphere box on the carb but interested in that set up
Oh yeah ur going Intercooler woops my bad . Frk yeh
Great job, can't wait for the next vid!👍
If the cooler doesn't work try a kei car or a stock rb intercooler
Bro this things gonna be soo fast when its done 🤘
Hurry bro im stressing i need to see this next part 😂❤️
Front mounts just make anything look tough
You mean 125cc and a quad, not quad bike lol
Fucking mental! good shit!
What an awesome build i love it !!
Hello from Sweden🤙🤘
Cheers! Hey from Australia haha 😛
Tilt steering column would be sick
Starting to look sick as fuck dude keep it up
stretched tires would look so good on this kart
looks dope af love the the videos mike....
Good onya mate. Quality content very engaging. Looking forward to the rest of the build.
Thank you bro! 😁 I can’t wait to probably almost die on this thing 🤣👌🏻
Put a scoop air dam with a screen
How do you put a throttle body on that
Daaamn😍❤️ excited to see next episodes
Should have used a crf150r motor. Skitz build though mate keep it up
Haha we can always upgrade for sure! Thank you bro 👊🏻
you and grindhardplumbing are building basicly the same thing?
but you doing better
That was a complete coincidence haha. Their work is so damn good!
I don't think it's guna have enough boost in the charge pipe for a wastegate unfortunately
I guess we’ll find out 😁
YEAH BOOOI!!! All the reason to be proud Mike! It's looking SICK and I look forward to next week's video! 🤘🤘🤘
Killed it!!!
Thanks bro 😁
All I have to say is to get some grommets on that rad. Bc the mounts like that will be destroyed. You’ll be in a world of trouble. Bc it’s going to vibrate a lot. All that vibration is going to find its way down to them mounts and break off
Not a bad call on this one! These things do vibrate more than a s*x toy that’s for sure 👀
@@itsmikelake yea. Theory the motor shouldn’t have move like a normal vehicle. No dampners. But the rubber on the charge pipe should dampen it some. But the air still would possibly vibrate the cooler. Hopefully u didn’t get too far into the cooler building 😂
Really enjoying this series so far! Maybe you should try running nitromethane in the car? It will give it an extra bit of kick. Must richen the mixture though.
Have to be my favourite youtuber atm and such a killer series! love the work
Bro that’s such a rad compliment. Thanks so much! 🥰
I’m the 2.1k like 🤙
Should of used a factory skyline or wrx factory intercooler
I have one here. Waayyyyy too big haha
It's got intacoolah! Fully sick, Bro!
So ridonkulous, but I love it
Things sick bro 🤙🏽🤙🏽
Been excited for another episode of this, i'm strapped in and ready 😎
😁 thanks for watching!
Bro that looks so good!!
This is the best drift cart vedio but it will be better if it has lights ❤ keep it up
Thanks! Maybe LED underglow? 👀
I love how a sound
Come on man longer vids
The build looks so sick mike I'm loving this drift cart series I can't wait to see you ripping it around
Love the progress.
a comment for the algorithm good sir.
I appreciate you bro 🥰
It looks mad with that Intaculer and everything tacked up looks sick as cant wait for it to be done
Early btw hello
this thing is just ridiculous lol love your work man
Haha thank you bro! Should be mental when it’s running 😁
TWIZTED FCUKING SICK ....BADASS LITTLE KART
Thank you bro! ❤️
This is the best I want to build one eventually out of all the carts this one is my fave 👍
why didnt u just flip the inter cooler upside down?
Looked ugly that way
Thats insain what a build for a quad / go cart one of a kind keen to see the finish well done bro
this i crazy insane
No Ackerman??? Thats gonna be an issue bro.
We can always dial some in with toe adjustment. It’s super easy to modify the knuckles if we need to anyways 👊🏻
Sick video!
love the qaud man
Cheers 🥰
that intercooler is epic. everything is looking awesome bro! good content cheers
Also appreciate all the time and effort you put in dude!! 💯
Bro thanks so much for the nice words aye. Love reading stuff like this after all of the hard work! Makes it worth it 🥰
This shit goes harder then most drift cars! The ic looks sweet af
Nice Fab skills!!! Love seeing someone bring the imagination to life!
flip the FMIC upside down for more clearance! cant wait to see this thing ripping
I did consider this but it just didn’t look anywhere near as cool haha. Looks are important 🤣
@@itsmikelake hahaha I agree
Whats the details on the efi where did you get it etc?
Link is in the description of part 2 vid 👊🏻
You need a chop saw lol but loving the content!
You’re so right. I’m so sick of cutting piping with a grinder 🤣 haha thank you bro
Glad you saw the comment on the intake side and took note! Looking forward to seeing how it turns out!
add a nos
Mike need name for it? "FrankenKart" lol
Barbies boost beast