20HP, 9,000 RPM Engine Build! 88MPH Kart Pt. 3

We’re building an 88mph back to the future inspired go kart from the American Express 2.0 go kart kit from Go Power Sports. To achieve 88mph, we need a very powerful engine, which is why we’re building a hemi head Predator 212cc engine with really high performance and brand new engine mods, like a 24mm flat slide carburetor, elongated billet rod, oversized valves, and more. We’re taking this popular 212cc 6.5 horse power go kart engine and making it turn 9,000 RPM and put out about 20 horse power.
Thanks for Watching!
Facebook: goo.gl/VR6mh2
Instagram: bit.ly/3T8njaF
Go Kart Kit Frame: goo.gl/7NuZ6Z
Go Kart Complete Kit: goo.gl/5TQvzy
--RACING ENGINE PARTS--
24mm flat slide carb: goo.gl/x4svWC
26lb Valve Springs: goo.gl/AN7uof
Billet rod (+0.20): goo.gl/pmktKK
Bronze valve guides: goo.gl/atQ234
28.5mm intake valve: goo.gl/n9rzsS
25mm exhaust valve: goo.gl/hk3p4N
Valve retainers: goo.gl/4fAmmi
.274 lift cam (hemi): goo.gl/NdKkyf
Billet flywheel (hemi): goo.gl/twjzMM
Go Power Sports: bit.ly/3QKyODE
NEW MERCH: www.cars-cameras.com/
Equipment we use: www.amazon.com/shop/carsandca...
The following video features activities performed in controlled environments by knowledgeable persons. DO NOT attempt to duplicate, re-create, or perform the same or similar activities at home, as personal injury or property damage may result. CARS AND CAMERAS, the persons shown in this video and ANY CONTRIBUTOR, ARE NOT LIABLE FOR ANY such injury or damage. ALL CARSANDCAMERAS CONTENT IS FOR ENTERTAINMENT PURPOSES ONLY.
Cars and Cameras makes no representation about the sufficiency of any safety precautions and equipment used in this video.

[@Mayhemspent]

"Opened her up and smoothed her out"... Id buy that tshirt. ;)

[@ChrisPBacon-uo4qk]

LoL

[@BadHaddy]

As an engine builder.. you need to know that the aluminum rod will expand when it heats up, about twice as much as a steel rod. Measure your deck clearance at TDC after you assemble everything to make sure the piston wont smack into the head. I'm sure the maker of the rod will have a recommendation, but on the engines I build, aluminum rods usually need .060 to survive... CC your head, and piston, so you can calculate your compression. Will let you know how much room you have to wiggle.

[@user-mg9ne2nf9c]

How would I do this? Would I adjust the valvelash to a different spec? Please get back to me as I’m interested in making a high rpm engine build

[@robburdack4361]

Isaac,s girlfriend just giggled a little at the end of the porting section

[@papafranku1867]

What time

[@robburdack4361]

if you cant work it out you probably dont need to know LOL

[@papafranku1867]

rob burdack no I'm just lazy

[@skrewylewy3259]

fingers does usually open her up hahahaha

[@Ratkill9000]

skrewy lewy No joke so true

[@FatsharkFun]

Wow! Go Power Sports should really bundle all these engine parts together to make an ultimate performance package! I would love something like this for my go kart

[@slowmissouri205]

I see channels like this installing the kits, but I totally agree they should make signature kits designed and tested by them. It would be a great partnership.

[@Kazooboi23]

Love the little transitions you do when you go places

[@BigD1395]

I really enjoy watching you guys do mods to these small engines. None of which I've ever tried. Now however if I was so enclined to do so, I'd feel more comfortable doing them. Keep up the fantastic informative/educational help video's!!! 😊

[@greenwizard2000]

I realy like the post-commentary. It gives more time to thevideos and makes the building parts more exiting.

[@blader2themax10]

This new build style where we get to watch how you do everything is AWESOME! The explanation and speed were perfect. Hope to see more detailed builds like this!

[@DracolegacyOfficial]

thank you for having proper audio levels during the voice over. i dont know why so many people have trouble with that part but you nailed it.

[@kingbryant5673]

I love the voice over it allows you guys to keep working without stopping every 2 seconds

[@jeepcollector91]

If you ever decide to build another amphibious go-kart or maybe a Predator powered paddle-wheeler/stern-wheeler boat I might be willing to give you my 1974 Boston Whaler 13' boat (w/title) if you would use it for the channel. Could become a cool little river boat to travel from Washington, NC to Greenville, NC and back? Just a thought...

[@megantripp9520]

thats my area n.c.

[@Mr17riddog]

That little crankshaft is so cute lol

[@addicted2fuel245]

I can't wait to see this engine running. Great video guys

[@heathfiedler]

Mini Bike Addict216 yeah I'm stoked to see if they hit 90 or better. Here's to hoping!

[@barris1233]

*IT'S HEAD TIME*

[@bigwhane8603]

Dude this is the nicest build yet

[@GroveDaLord]

I dig the editing cuts you guys keep putting out better and better content 👌🏼👌🏼 love you two!

[@MegaFPVFlyer]

Y'all are really stepping up your game with the transitions between shots.

[@iMatthewWilliams]

Lol how did it take this long for you guys to get a torque wrench

[@user-qx7tm5df8j]

6:33

[@cskalle1213]

dont you get it ? ill be fine.. and then some broken engineblocks later they changed mind xD

[@matteedstrom]

They still don't have one. They bought 12-point sockets^^

[@cskalle1213]

me and my brother dont have on and he just bought a cylinder for his 2stroke moped 1 week ago now its lost its power

[@gavincline3581]

you did a top end rebuild without a torque wrench, dumb fucks

[@randymang1]

Now this is the kinda videos I really like to see you guys doing!! Great work so far

[@jeepcollector91]

@ 13:20 that just doesn't look right... LOL

[@Lonwolf4019]

JeepCollector91 neither looks or sounds right hahah

[@mylostwife5230]

That Shit Hurted

[@ryanwelch64]

JeepCollector91 😂

[@The505productions]

Prison style polishing

[@chucklemmensen]

he opened her up and smoothed her out

[@berniemcpartland254]

GREAT TIP for beginners..."EXAUST ONLY" Love it.

[@Crispy_22]

I cant believe the amazing work that comes from your channel. Keep it up guys

[@GOTM1776]

Hey guys, big fan. Love your videos. Just want to point out that there are dramatic differences on torque specs with wet or dry bolt threads. Torque specs are generally dry unless specified. If you use provided torque specs, it is intended for dry threads, no lube or thread lock. If you use those specs with wet (lubricated or thread lock) threads, you can over torque the threads. Keep making great videos. You've brought life back to my love for go karts.

[@calebhaynie7511]

Thanks for all the great videos Ike and john will always watch forever.

[@joetri1970]

That was misleading Ike building us up for the valve job with John just to have him close the video.

[@ghomerhust]

i had build up problems last night

[@markferris8079]

so John leaves for the day, and comes back to end the show just when it's getting good, that sux!!

[@Aleks_Z]

This was very satisfying to watch! Thank You for Your awesome content!

[@LiveModz]

So happy this video is out! Love all your videos both of you! Thanks for the best entertainment for me and much more:)

[@mingusbreeze]

Thanks guys looks like a fun build.

[@El_Chompo]

that exhaust port is beautiful :O can't wait to see her rip

[@resultsads]

Looks like one wicked predator. Can't wait to hear the rpm hit 9k!

[@peterdebad1]

Like kids on Christmas morning!! Enjoy!!

[@cobravello453]

2:51 when the music started and jon's voiceover kicked in i thought you had completely lost your mind and were rapping :D :D

[@theskinny111]

Fave episode yet! Thanks guys!

[@muddy_armadillo]

I love how you left the go pro on the helmet! Haha

[@MillennialRebelion]

Cant wait to see it run. Im so excited.

[@notdatboileroy9602]

Building my first kart! Thanks for the inspiration guys.

[@kita17n]

great flow work on the 212 head !!!!!!!!!!

[@romka_ind]

That exhaust port polishing with a finger, just gold.

[@jblhunter]

I can’t wait a week for the next episode!!!

[@TheBarnacleBlimp]

That was a great goody box from go power sports. And the con for was a thing of beauty

[@kiiiisu]

ur vids has been getting better and better i think this is the time to not change a thing anymore, i like!

[@jettables9470]

The engine is looking nice guys. Keep up the good work

[@brokecountry3965]

ON A PREDATOR!!!.... HELL YEAH! Go boys go! Good luck. You guys are on somthin here!

[@mitchellscripter587]

just saying, i love the camera mounts for the montage

[@Greybuiltracing]

Bravo 👏 👏 👏 nicely done guys ! Will be using this as a reference point . Ty

[@SCARNEDGE]

Still onpoint with your transitions store to shop 645. Lovin it.

[@tritclips3304]

Been watching for 2/3 years love the vids

[@danhard8440]

kind of funny seeing 2 big guys working on a little engine and even one of them going oowww lol

[@nickzona2491]

You're editing skills have gotten so good!! I've been watching you videos to the end because you have content, and an interesting video. Keep it up! 😃

[@bighomieJ5X]

That clutch tho ...😎😁 ,its about time...

[@jeffreystroman2811]

I just got done tearing into a 5.5 hp engine to get a free log splitter running so i had to watch this. One thought, I was told once that torque specs are only accurate for clean dry threads, so any substance from never seize to silicone to motor oil throws off the accuracy of a torque wrench. Not sure how much, probably a whole video worth of research here but thought I'd chime in when i saw y'all lube the threads of the one bolt you wanted to be sure about torque-ing down.

[@edam-gw9sw]

Its cool to see all these youtubers from around my area. We need a mr.beast and c&c collab

[@zackskinner2666]

no one: john "these are nice clutches" breaks clutch lmao

[@probablynotwearingpants6228]

Gotta admit, you sanding that exhaust port really got my motor revving!

[@timknitschky6876]

Awesome!

[@nicholasschmidt4014]

I have been waiting 5 hours for this video

[@calebhaynie7511]

Nick Schmidt me to

[@Hermiwalle]

more like a week but yeah

[@StephenButlerOne]

Wow, stage 47.20. I love it.

[@macbilling6410]

Looking forward to seeing the end project.

[@beerandhorsepower3018]

Oh boy I been waiting for this!

[@dano2644]

I used the polish wheel and compound from my Dremel to polish. That makes for a mirror finish!

[@dano2644]

camjamsdad correct. That's all I polished was the exhaust.

[@RaztechPowersports]

Fingering the Exhaust port... pretty good idea lol

[@griffgoesfishing3357]

Really cool

[@bandeboyz2205]

We use the exact chain and clutch on the mini cup. I love the videos. Gonna run out of data watching them

[@frogglidd1951]

I enjoy watching your videos hopefully you record. Hopefully we see you guys can video the older rigs that you're going to go see this weekend that be cool

[@isaiahmcwhorter7907]

Best channel EVA!!!!

[@keeganhurren9931]

That is one hell of a engine

[@The_Lurker___]

Finger banged to perfection that exhaust port..

[@ps4racinggames472]

I love the transitions

[@DreaminginWaves]

Great video!

[@RageForSeven]

dude..the memes is strong with that one..especially the whole exhaust port section!!!

[@baileyvolkert]

Impressive Engineering on that rod

[@builtcountry2985]

Love these vids I use a lot of ideas from here

[@javondagoat9145]

They just hit a million

[@colecampbell8721]

'opened her up and smoothed her out' you guy's have to make a t-shirt out of that

[@dodgeme1986truck]

If you are going to shave the head with sand paper get the glue back stuff and stick it to a piece of glass and hand sand. This technique leaves the best/perfectly flat mating surfaces you need at those rpms. Also you really should polish the exhaust runner as well as the combustion chamber as it will reduce the heat that transfers into the head during and after combustion which may cause your valve seats to eventually fail at those rpms not to mention mess with your valve lash settings (best way to lash valves is with the engine at operating temperature too).

[@herbienbrian2]

Yes back to the 212's

[@kenwinston2245]

9 grand out of a one banger . . . Sounds wild can't wait to see

[@quevicular]

Awesome, this will be great to watch. You may even get 88 if you can turn some serious rpm

[@snoops7942]

great video!

[@rncboy2]

Welded head, 28.5mm intake valve, stock 25mm exhaust valve stainless. Stainless 2 peace keepers 26lb springs ported and polished all done by Brad Hill Performance. Stock piston billet rod .020" longer then stock rod dyno 335cl grind cam and a 22mm-26mm carb. 22-24hp easy thats with stock rockers and stock push rods and lobe tappets.

[@rncboy2]

Also for the life of the engine and most hp i would highly consider having the crankshaft balanced after 4,000rpm. Everything you do to a car/truck engine you do to the small engines. Same concepts if that makes any sense. Hope this helps more then the other comment😂

[@lyleklemm7408]

Awesome video

[@Gunbudder]

a good torque screwdriver is so expensive, but extremely useful when you actually need it

[@starpuss]

You should contract *cc specialty tools* , I bet you they would Give you a KickAss Deal of a Full Set of Porting tools! Great guys to deal with , i got a few toys from them over the years.

[@ChrisPBacon-uo4qk]

Awesome, this thing rocks!!!!! :)

[@DeliciousDeBlair]

I've never seen rolls of sandpaper like that! Definitely would be MIGHTY handy!

[@firstnamelastnameisallowed7943]

Finally!! Someone that knows a longer rod is NOT a god dam Stroker!!! Thank you!! Lol

[@davidholdman8015]

Awesome 😎

[@destin6041]

Could you please do a detailed video on the wiring for a 12v ct70 swap. There’s no good videos online.

[@austinsears1637]

Just finger it out on your own, bro! It's only as hard as we make it out to be!!! YOU CAN DO ANYTHING YOU PUT YOUR MIND TOO, MY FRIEND. THE SKYY IS THE LIMIT!!!

[@joshmanis9860]

@@austinsears1637 WOOOOOOOOO BEANS

[@andrewforbes4817]

This thing is going to be awesome

[@andrewashley1548]

More ct70s please?!! Enjoy the videos😄

[@fiveowen]

We want more videos weeklyyyyyyy! Please I’m needing more vids

[@MotoDUDEabides]

13:20 lol... opened her up and smoothed her out. 😂😂😂

[@thebiggsfix6987]

Great job great vids 👍

[@kovamaps9379]

i like the start of the video :D

[@michaelbrown5009]

Omg I was waiting for this video

[@james6216]

Love ur vids

[@RCCFanatic]

My dad and i have gotten a couple of the Predator engines to do 32HP and would rev over 10k all day long. The things were mad!

[@BIllMcCambridge]

Great explaination IKEA rough intake port for maximum turbulence keeps fuel in suspension. Smooooth exhaust for maximum velocity and scavenge effect during over lap. Please explain compression release? Great job can't wait for next one?!

[@heathfiedler]

Love watching you guys, really wish I had the time to do what you guys do. Seen an off road cart here like the redone you guys have for 200 but they said it needs lots of work. If your looking for more carts ill pass it along to you guys. Good luck with this build I nearly cried when Isaac's motor blew on the other cart. Sorry for the loss.