We took our 125HP Go Kart to the Race Track! | *Insane Acceleration*

We took our 670cc 2 stroke go kart to the Virginia international raceway kart track to find out how our 125hp home made go kart performs around an asphalt race track! The snowmobile powered go kart runs great for a lap or two, and then it unfortunately fouled a spark plug. With a new set of spark plugs, our issue mostly went away. We have to chase down a few problems on this fast go kart (better fuel flow, ignition gremlins) but overall this was a very successful shakedown!
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[@Ty-bz7zx]

To fix the turning right issue you HAVE TO .... for safety and drive-ability..... ADD another 670 to the left side to even it up !! Might get into the 20's =))

[@thehourglasswithaman]

For the safety and drive ability🤣🤣

[@Avetho]

@@thehourglasswithaman Well, if you have a rocket, and its tilting to one side since the engine is offset and forced to vector the nozzle, if you can't move the rocket motor, just add another nozzle to balance it out. As KSP taught me, moar boosters!

[@crazyeyez1502]

Dont think it'd be torque steering, as is a solid axle, right? But the weight balance is probably the factor. Counter weighting it might help.

[@krispychiken]

MIIIIIIINT MAKE IT 4WD

[@thehourglasswithaman]

@@Avetho yeah he’s right I never said he’s wrong

[@Eric_Cahill]

You need to change the spark plugs. those engines benefit greatly from fresh plugs, as they foul plugs easily. Your jetting is more than likely off because it's jetted for winter temperature. And also snowmobile engines are very sensitive to clutching. You guys are leaving a good 30%-40% of HP on the table. Thank you guys great work

[@boostedoutlaw8443]

Agree with Eric

[@thomasotis5616]

*You should* there's still a way to say things

[@CarsandCameras]

We’ll check it before we go to the drag strip. Thanks

[@eddiegrider4033]

Agreed. Might need to sink the carbs too.

[@westie4ageturbo.749]

Does it need another 40%??

[@CarsandCameras]

No tire smoke, no drama, this go kart just HAULS.

[@zmaxdudeonline7854]

This is the best

[@critterproformance1824]

Hey yall still in va? I want to give u a free lawnmower mower i need it gone yall just need to come get it

[@jakeparks1]

I need to build one of these now 🙄

[@MegaMeaty]

Im going to build one much like that except I have a Polaris 800cc. It is going to be much bigger though, and I want a roll bar, and 50/50 weight distro. LOL it will prob take me 3 years, because I am backed up on other stuff. Looks like too much fun not to have one. Definitely my fav project from the C&c crew.

[@memosrt]

That stooge introduction really cracked me up. I was wondering why John was standing by the portapodies.

[@wicklash9065]

Crazy to see how far you guys hve come from racing around johns fathers yard.

[@contraband1543]

Honestly. It's about the exact same. I've watched this channel for 5 years and it's not much different. Just a bit more complex projects now

[@elliotmiller1674]

@@contraband1543 very true. One of my favorite channels

[@otix3253]

i remember the video where they johns dad kinda kicked them out of the garage and into that shed xD

[@brannaganchavis1925]

@@contraband1543 that’s uh… more complex? Yea that’s pretty much what they’re saying. These guys haven’t changed, but they’ve come a long way. They’ve grown.

[@JamesCouch777]

This cart would have been a hoot in the old neighborhood 😂

[@coria1235]

That thing is a rocket ship! Would love to see a 0-60 attempt. Also, love how the colored lines on the new tires disappeared after half a lap 😂

[@rydplrs71]

In a sled it’s about 1.5 seconds

[@moto6ixmoto83]

@@rydplrs71 I wouldn’t go that far, probably around 2.5 seconds for 0-60mph. I know the new 850 sleds get to 60mph in the low two seconds with studs on ice.

[@rydplrs71]

@@moto6ixmoto83 studs on ice aren’t the fastest setup with suspension. Freezing wet snow or on asphalt get the times I’m thinking about. When they hook it’s absolutely breathtaking.

[@markmoats5702]

I like how Charles has become part of the cars and cameras family he's really adjusted well really been doing his part in the episodes and has opened up a little better since we were first introduced to him as a new member of the show keep up the good work guys

[@giacomomei7203]

two strokes have their powerband from 7-8k rpm up to 11 or whatever is the limit. That kick you feel is the engine actually reaching is full potential For the love of the engine make sure to heat it up always properly before sending it. 2s are design taking metal expansion in to account and unless you want to kill it keep it warm 70-80 C° all the time.

[@shawnstillman736]

The kick you feel is the engine hitting the pipe. That's when the exhaust flow pulls out the exhaust charge from the engine it's the scavenge effect.

[@bobadam7021]

I think that's what the Issac's slow lap was about. He was rolling the thing around the track part throttle on cold tires. The second lap he started leaning on it and warming the tires up and then he went for it.

[@rwbnatureadventure3876]

That 670 twin spins to 8k max. It doesn’t spin anywhere near 11k.

[@nathanbasel207]

@@rwbnatureadventure3876 don't tell them that let's watch them try to spin it 11 lol

[@ExploreUnderground]

@@shawnstillman736 that's part of it.. but the pressure waves in the pipe push it back onto the combustion chamber, basically superchariging it. The more air:fual you can jam into the engine, the more power it'll make. this is why they are so sensitive to the exhaust system.. hence the term "tuned pipe" and when it is operating at its highest efficiency, that is "on the pipe", you can change the way the power is made by changing the pipe. That's also why 9/10 snowmobile powered go karts have less than half the engine's stock HP. Nobody seems to understand this lol

[@mamocontreras5028]

Dominic Toretto: - This boy fills me with pride! 🥇🏆💪😎☝🏁🚦🏎 Excellent video. Greetings from Chile! :) 🇨🇱

[@advancedmtb4836]

If you can adjust your front wheel camber to a little positive, when you sit in the kart you'll have neutral camber and a full contact patch on the tire. This will help get rid of the understeer.

[@advancedmtb4836]

Looks like it started hooking up pretty good once the tires were warmed up. 👌 looks like a lot of fun

[@CarsandCameras]

Camber is fixed on this one if I remember correctly

[@advancedmtb4836]

@@CarsandCameras yea probably wouldn't notice much of a difference once your back in the yard. Bigger tires with some tread on them would be cool!

[@88s10Durango]

@@CarsandCameras Left front tire is sitting straight up and down , Right front tire is all slanted inwards at the top when both tires are facing straight ahead .. Change the amount of movement on the steering arm lever where the idler arms connect ,, less movement will not give you such a radical move turnining the tires to far at higher speeds , theres to much movement when your turning the steering wheel right now . The cart is darting all over the track when your turning ....

[@billymanilli]

At least the frame is made with removable spindle brackets... Shouldn't be too bad to make one of those. or ya could make a set of two that accept newer style spindles w/ eccentric bearings for adjustment. I wouldn't doubt that back around when that frame was made, the manufacturer had sets of those brackets available with different camber angles built into them. I suppose the main thing is: do ya really feel like doing the work?! hehe :D

[@spyder7758]

It's always fun watching you guys work and play since you found a way to make both one, cheers

[@elle4702]

Me : sees the video only fans tinders.club/AGNEZ " Alright I think that's enough for today " My mom: makes soup Me : OK IM DONE Ello everyone if you are bored comment in my comment cause I'm also bored. :).

[@bodine2537]

Easily 1 of the best episodes you guys have had, im gonna watch it a couple more times tonight, awesome cart, id like to see the stooge try the track record again once it’s running right cause he was feeding it the beans lol, tires squeeling all the way through the turns, probably knows that track by heart 🤙🏼

[@mikeannen4458]

Having sleds for a few years up here in Wisconsin, I can tell you that fowling plugs can be a regular thing with some motors. You never go out without a few extras!!! I highly recommend that you guys plan a trip to go snowmobiling up in the upper peninsula of Michigan. Some very awesome riding. Miles and miles of trails. You can rent really nice new snowmobiles and all the gear you'll need there are motels to stay at all over the state look into it. I bet it will be a trip of a lifetime and you'll be hungry for more! After watching the whole video, I would like to add that motor will move you on a snowmobile at a 100 miles an hour no problem!!!!

[@rhull3939]

Watch out for the Sasquatch up there.

[@rydplrs71]

Adjust your oiler. That motor should go 2000 miles or more on a set of plugs.

[@tlctinkerin5196]

Yes as well as many miles of trails for ORV’n in the warmer months! I live in Northern Michigan Lower Peninsula and have property in the U.P.

[@digiprez77]

@@rhull3939 Dude, you are not joking... My buddy and I were coming off a wilderness lake Up North after dark and as we approached the landing we heard the craziest sh*t ever. It sounded like two people talking impossibly fast to each other in some otherworldly language over a pretty good distance on either side of a bay we were in. We sat out in the boat for a good 15 minutes hearing the same sound occasionally until it seemed to stop. We decided to go in and as were were dragging the boat onshore the sounds started again, only really close. Then we heard a big crash in the brush and what was basically half a dead tree landed about ten feet away from us. Our car was 200 feet up a dirt landing and we ditched our fishing stuff and ran to it. Once we were in the car we felt pretty safe, but we still had to get the boat and our gear. We had some fireworks in the car so we decided to use them to try to scare whatever it was we thought we were hearing away. After about 30 minutes of occasional firework shooting off we armed ourselves with mortars and shells, went and got our stuff and got the heck out of there.

[@mikeannen4458]

@@tlctinkerin5196 your right, year round trails. You know what's up with that awesome exceleration on a new fast sled Im sure, they would love it as well. Ain't nothing like it!!!

[@randumbhoosier]

Been watching you guys for years and its so cool to see you guys working on bigger projects

[@brookrobertson7456]

Just fantastic!! Great idea, great build and great fun. Well done lads

[@jeffrykopis5468]

I love episodes like this; more riding, less wrenching.

[@nathanbasel207]

Watching them think junk is fast is better than watching them try and rig stuff that they think is fast LOL for instance that snowmobile engine has a vacuum leak was one of their quotes🤣

[@jerrycorbett7294]

Love you guys video. You actually take the time and explain it so most everyone can understand. Keep having fun and thank you..

[@mattriley4157]

always good to see the boys having fun!

[@bobcatstillwell4844]

I have watched you guys for at least 5 years. I am proud of you boys! This is monumental!

[@bobmanzi7712]

great stuff thanks that thing looked really fast

[@mxwizzard]

Love this episode would love to see other builds out at that track

[@ontariotube]

I was on a reality TV show once (about bad drivers) and they put me in an 125cc Shifter Kart (top level racing cart / liquid cooled) to run laps against a Canadian champion. People will never know how hard it is on the body to keep these way-over-powered machines on the track. I spun on the 2nd lap and couldn't endure any more. They said I did 100mph!.. but I think more like 80. I'll bet you had a blast. Way ta' go lads!

[@ianthompson2802]

Canada's worst drivers?

[@ontariotube]

@@ianthompson2802 That's the one (wink). I wasn't BAD!!.. lol.

[@ianthompson2802]

@@ontariotube were the drivers really that bad I've seen the last season on the seven seas but wow I thought people in stl drove like shit. Some dipshit yesterday tried getting in a lane war with my service truck which was a 389 with a service body and I was pulling a mini ex. He was driving a v6 charger

[@ontariotube]

@@ianthompson2802 Yes, They're that bad! Some were nice folks and all, but scary drivers.

[@Boostedlifestyle]

now in search for a two stroke snowmobile motor.

[@jakeparks1]

Should be plenty where you are. I 1200cc 4 stroke swapped a 4 wheeler. It was ridiculous. Did 300' race on dirt in the high 3 second average. And did 100 mph easily. Your turbo raptor mower should get close to that with some good scoops 👍

[@reesewilliamson3346]

488 polaris twin is the best go kart engine. Fan cooled, low end grunt, plenty of power, fairly light, stupidly easy to fix, dead nuts reliable.

[@leehuntley189]

Yes! And put trash kitty in charge!

[@nybergsgarage]

I have a lot and you can't have even one because they're staying in the sleds.

[@yeahrightmate]

Just get any old motor bike engine and gearbox and it will be quicker then this.

[@lizzard7473]

Wow! What a ride! Great build guys!

[@drewscreations8551]

By far one of my favorite videos! Love this guys! That kart looks like a blast……. Literally!!!

[@garageworker]

Racing it against the stock kart really showed how fast your kart is, omg!

[@DavesWhips]

Gotta oil those air filters. It will keep dust out of the engine

[@bryduhbikeguy]

Could see dust fall out when he tested for flex.Why the hell they didn't clean them after the yard is always a pisser.

[@davesonsadventures474]

Awesome video great job fellas!

[@gradybrowning3976]

That was awesome!

[@endgovernmentextremism]

What an awesome track. Of course he's gonna let you run, you're an established channel now. Even if one of you died on his track you signed a waiver, and any publicity is good publicity. ;)

[@vhayne91777]

Learned about the track years ago when the company I worked for took us out for a day (freaking awesome bosses lol). I went back a few years later as a birthday celebration for myself, along with friends and family. Both of those times we ran the track reverse from how these guys did. Not sure why it was changed, but all in all, it was an absolute blast!! Our previous experience had been nothing more than the watered down go-karts you find at vacation destinations. We were blown away by the speed of the karts and layout of the track. Love that place! :)

[@urbanburja6291]

Driving 2 strokes off the gas that long and cruising will definately foul your plugs. Contstat bliping is needed and of course the balls of steel to drive that concotion on the track. The power is insane but handling is hurt.

[@jonnyfromtheblock1]

gotta stay on the pipe.

[@fatherandsonsavejunk]

Thats one thing I love about y'alls channel you build and use em

[@tanker_5994]

I have to tell you guys. I laughed so frigging hard when your professional driver "The Stooge" came out of the porta-potty, wiping off his face shield trailing a length of TP behind him on the way to the cart, I thought I was going to piss myself. Frigging hilarious.

[@gordonforeman1943]

Also be sure to check/ clean the RAVE (exhaust) valves on that engine. When they get dirty they will cause similar runabilty issues.

[@a-a-rondavis9438]

Now I feel like y'all gotta get every project out here to run a time lmao.

[@Beodude123]

Very cool guys! I bet that was a blast!!

[@frugalhousesitter5520]

Awesome video - you guys are great!!!!

[@fuckutoni]

Can't imagine with proper exhaust pipes how much it could pull, just amazing

[@jeffman3]

The factory pipe on the 670 isn't half bad.

[@HellmuthsHotRods]

In my experience those “pocket speedos” aren’t very good at quick blasts of acceleration, you need to hold the speed for a little while to get a good reading. So it may be impossible to get an accurate number on a track like that.

[@250samo]

Well done lads watch all your vids seeing you all ripping around that track made me smile so much cant wait to see more content on this build well done

[@reddog543211]

Great video guy's!!!..... lotsa fun was had by all !!!!..... impressive build and editing !!

[@sparky87213]

I can tell just from hearing that it’s way to rich. It’s loading up and that’s why you are running into plugs fouling. Also leaning it down will help it’s acceleration. You gotta remember that it set up to run 20 degree and colder weather.

[@ttank1994]

I came here to say the same thing. I wonder if they kept the jetting the same as it was from how it was equipped in a snowmobile? Assuming stock jetting from the factory is typically good from 0-20 degrees F. You could easily go down 2 jet sizes and maybe even drop the needles a notch to clean up the mid range. It's possible you could even go leaner because the time spent in the mid range and WOT is so short on an application like this.

[@sparky87213]

@@ttank1994 I know when I was racing sleds I could go down four sizes on my main jet from the hottest race in the spring to the coldest race in the winter. Eventually I just stayed with 3 just, because the sled was more consistent and I didn’t run into heating issues.

[@ttank1994]

@@sparky87213 I definitely believe it. I stayed conservative recommending 2 sizes because I don't know what's in it now and if these chuckle heads didn't know enough to address the jetting right away then they would probably take it way lean just as easy.

[@billymanilli]

@@ttank1994 "chuckle heads" I dunno why, but that word is just pure gold! lol

[@samueleputzu9416]

Is it me or does it sound lean at idle?

[@jeffrykopis5468]

I wish you had also brought the Ducarti so you could've raced them!

[@jamesmcgee9279]

Awesome kart! I'd love to see what this thing would do on a drag strip. I can't wait to see this at its best! Thanks guys! LOL! The Stoog right out of the port-a-potty.

[@mattrowe1037]

That thing is insane, great effin work dudes

[@Enigma-Sapiens]

Get it sorted please, we definitely want to see more of this insane kart!

[@jeffrykopis5468]

No one would be able to pass you on the track, because that cart is 6 feet wide! 😆

[@shakyhandpictures2185]

Great work having them supporting you guys!

[@N1RKW]

Holy smokes! That thing sure cooks! Nice build, guys! Well done.

[@offhandacoustic]

I see an asphalt track on the property in the near future. Make it happen boys.

[@CarsandCameras]

We gonna need to raise some money!

[@musicauthority7828]

That is an AWESOME race track. I'd love to take my go kart there but I live clean across the Country in Washington State. that 670 go kart is definitely fast but I think it could use a lot more tire on it. a little taller and wider all the way around. along with the the upgrades that you talked about. it definitely looks like it would be a blast to rip around that track in that kart. I'm betting that I could shave off some more time off that fast lap. time once I got to know the layout of that track. no matter it would still be a blast trying to anyway. something that you need to do is put that kart on some scales. just to see what the right and left side weight is. I bet it's like 80/20 or 90/10 percent without the driver. that's always going to make it handle poorly turning one way than to the other. the only cure for that would be to widen the the wheel track out so the engine is inside the wheels. and have a driver that is equal weight. that is a lot of weight hanging outside those wheels. but all and all it looked like a blast no doubt.

[@BikerDaddy22RideorDie]

you guys are crazy as always, i love it keep safe boys!

[@darrellkelly7614]

Incredible video and VIR ROCKS.. BLESS THEM. How fun... you 3 mad scientists are the greatest. Hey Charles!!!!

[@suzukiman650]

As others have mentioned you need to rejet the engine for the warm temperature as it is running way too rich. Clutching is likely off as well. Engine is bogging bad.

[@ChrisRollins]

Great build! Im guessing u beefed up the chassis for that engine which eliminated ur chassis flex which might be why u cant turn right. Also, definitely add some front brakes! 🤘🏻

[@MrStroblight24]

I remember when there were many Go kart tracks everywhere. You can still see their remains along many roads. Glad to see some of them are still out there

[@drgti16v]

awesome job boys!!!!!!

[@81DEK]

It looks to me like the right front has more camber than the left front .This could be why you are having trouble turning right. I am not an expert by any stretch of the imagination just an observation.

[@rugbyguitargod]

I also noticed that. the left front definitely has more negative camber than the front left

[@notofthisearth23]

Right we need timed laps with all your vehicles on this track now! Cheers for another sweet vid legends

[@Stratos53100]

Awesome, the stooge really Sent it, that would be a fun ride, Reminds me of my old Artic Cat legit tuned racing snowmobile in the 70's, it ran multiple 1/4 mile passes on the ice, on the trails was a beast as long as the slower speeds didnt foul the plugs

[@brandonschroeder6225]

Loved this kind of video

[@MarkLoves2Fly]

That's a mighty nice cart guys! Well done!

[@mcsstudios101]

That was awesome! Fast! Very cool track!

[@mikahakkinen5651]

this was cool to see.waiting to see more

[@bryanteel3046]

Absolutely love the Top Gear reference! Amazing

[@logan_e]

That looks like sick fun!

[@Hangar11RC]

Huge new fan of what you guys do.

[@taddelong5357]

That was such ah good video fellas . That cart is sick! Keep that up lo e it!

[@maxtaylor1026]

You gotta make the stig.. I mean the stooge a recurring bit. Genius!

[@ricktrent275]

Cool fun watching this cart Go.

[@mikedixon3292]

NOW, that was a FULL SEND. Good job.

[@jasonheinrichs8200]

Awesome video as always, I bet that thing screams down the straights!

[@Cooldad87]

What I was waiting for! You guys listen to your subbers!

[@wallacengineering8096]

Dudes... REAL Drift cart... OMG so epic!!!

[@JohnHill-jm7tm]

Guys another awesome video 👍. This Old Man from Washington NC enjoying it. Love you guys. 🛵🧔💝💝💝

[@wesbotkin8671]

That thing is cool I would love to drive it myself great job guys

[@jonnybravo1392]

Let's go!!!! Get sent home early to a fresh upload, couldnt ask for a better way to cheer me up!

[@410connects]

Now this is wut I was waiting for

[@badcompany3057]

Awesome, just awesome!

[@jamesdavid5997]

Awesome 👍👍😎 stay safe!!!

[@krispychiken]

I have a deep love for this cart, engine dang near hanging out the right side and fast as HELL!!!!!

[@Rob-uu8wt]

This is cool guys!!! I raced 500cc two stroke (non roll cage) karts on dirt tracks in central Fl in the 90’s, and raced 125cc shifters professionally in the early 2000’s. Get that thing corner balanced (best as you can), geared correctly, and put some front brakes on it and it will be a lot more fun, safe, and quick.

[@Chris-cq5dy]

Bad ass cart Great concert Great video Great show ✌ 🔥🔥🔥

[@gracelifemusicart1681]

I love Charles more every episode 🤣 he keeps me rolling! he reminds me so much of a best friend from about 15-20 years ago!

[@goldfishnation]

“It’s very controllable” meanwhile it can’t turn right 😂. Great video boys!

[@ciobanuvalentinmail]

I like that a toy made by you guys it's so good. I'm happy for you

[@nitroneal48]

Hell yeah, can't wait to see it on the drag strip

[@shotsrodder]

Very cool 😎 we knew it would rip 🧐🥰 nice track also 😎

[@jasonkeplinger2835]

That's fricken awesome!!!!

[@chrishorst6993]

You guys are nuts. Love it. Lol

[@AsphaltRhys]

Ive raced on the VIR kart track, it was amazing! So cool you guys have access to a place like this

[@Eric2300jeep]

"...and then it's like, freight train mode. Like, straight rocket ship!" The two most conflicting back to back statements in the history of words.

[@timothyobrien1850]

Great fun. Thanks

[@jeffwoodring1625]

Cool video fellas!

[@KingDeadMan]

Me: "Yall got the Stig?" Offbrand shop: "Nah, we got the Studge." 💀

[@craigrussell379]

That brought back some memories for me. Old Mac twin cart my buddy had. They made me the pilot cus I was smallest (youngest). Thank y'all very much!

[@BennyTygohome]

My absolute favorite channel on KZbin

[@kennethdispain1807]

That thing is frickin badass y'all really out done you're selves

[@southernpakarting5088]

Welcome to the club guys , nice !

[@brandongambino7740]

This is the single greatest thing you guys have ever done and it's only going to get crazier

[@cutl00senc]

VIR !!! You guys rock!