670cc Go Kart Performance Modding

[@beesod6412]

Holy young John! just watching older videos I never got a chance to watch, You fellas have came so far, perseverance has absolutely paid off for you and Ike, Thanks for the quality entertainment!

[@elesjuan]

I appreciate how you two are always thinking outside the box and never worried about trying something new or outside of your comfort zone. Makes your content interesting and enjoyable! Keep it up guys!

[@isaacitllbefine7231]

thanks

[@smallenginedude1181]

John's famous quote of the year: we don't have the nuts but we have a solid rod

[@jacobragsdale7039]

When he said that I died

[@balsamicvin9935]

thats what she said.

[@CarsandCameras]

Do you think it'll have slower or faster acceleration than before?

[@landerbeckers6860]

faster

[@AnthonyGarcia-kd9mx]

you guys are almost at the quarter of a million subs yayaya

[@richardf8268]

+Anthony Garcia i remember 6 months ago it was 70,000

[@chancesmith8620]

It will be faster

[@brandonhoover1749]

I'm sorry about your eye

[@skmetal7]

"It's quieter" "WHAT?!" "IT'S QUIETER!" HAAAA! It sounds bad assssss.

[@acmesoundw]

I found "Cars and Cameras" several months ago, I was gonna buy a mini bike and started searching videos on KZbin. Needless to say I bought a Kart instead, a Murray that was on craigslist, Predator motor, no suspension and all the fun $200 can provide. Now i'm doing mods and saying "It'll be fine" A LOT. Love the channel, I think I may be hooked.

[@aceboardtheangler5252]

I can’t believe nobody else liked this comment in 8 freaking years! 👏🏾

[@justindastar]

i just binged watched every episode, about 15 hours worth of content. let me know if u guys are looking to hire a cart technician i am now certified. lol

[@HiroshimaSpirit]

"No Nuts, SOLID ROD" - A Regular Kart Review

[@a.dudeman7715]

I can hear Mr Regular already. NOT A CAAAAAR.

[@TopAnimeGuy]

I find myself grinning like an idiot whenever I watch you guys do this stuff. please don't stop.

[@isaacitllbefine7231]

lol awesome

[@sir8ted606]

I always look forward to your weekly uploads. It's one of the few that I actually full screen. Keep up the good work.

[@isaacitllbefine7231]

thanks

[@Lownewulfe]

Awesome as always. Can't wait for Part 2.

[@HawkinsRC_Official]

"Where are the pods" "We dont have pods" "Aww man" "We'll have to use a sock"

[@losi8ightyew]

Damn, I work 3rd shift. Just as I was going to sleep, you upload!! It'll be fine. Let's watch.

[@bergi85]

My favorite line from you guys "For testing purposes only." Keep up the great work!!

[@Scrapy-ih7ob]

It Sure does rain allot where your at... Love the the Get er done attitude....

[@band1986]

You guys always deliver. It'll be faster and if not just paint some racing stripes on it that always works.

[@BigMuddyCountry]

Hey Ike and John, I saw something that you guys may need to consider for this beast. I watched a video last week of a predator 212 with a roots type supercharger on it. Guy fitted an old VW smog pump on the engine and ran it as the supercharger. Freestanding the engine made 17psi but operational boost was around 10psi.

[@paulpetlin8976]

Great job on the dual carb. setup ; BUT - the intake manifolds just "appear" on the engine in the video . How exactly did you make/construct those ??

[@Rompecorazones1974]

freakin sweet kart. I've wanted to put one of those Vtwins on a go kart forever. Nice work, I was pretty impressed with how well that sketchy ass throttle set-up worked lol hurry up with part 2!!

[@SDRacing88]

Anxiously awaiting part 2!!!

[@joeyeverett2958]

I like that you don't play music. A lot of people do like hearing the tools

[@fernandobarranco1034]

you guys are my inspiration for my builds i love all ur video and this go kart is bad ass!!

[@isaacitllbefine7231]

thanks

[@dylanrooney5772]

I love it how Hecht the holes in the plastic so the flanges can fit though the holes but to remove the plastics they either need bigger house or they need to remove the carbys

[@thevictimcard7065]

any chance of a turbo or a smog pump supercharger?

[@butre.]

I've been doing washers for flanges for years, they work great.

[@Wangan280z]

Very cool with the twin carbs guys👍 Mufflers look like mini supertraps lol

[@shawnmcintyre4773]

Like your backyard engineering ... Keep up the good work !

[@isaacitllbefine7231]

thanks

[@andrewbrown755]

Been waiting for this videos for so long!! Suggestion. You should take a old motorcycle engine and make a racing kart from scratch.

[@trooperandcooperale3057]

will look awesome with twin air filters, what type are you going to use? Has to look Billy BadAss

[@sandmanbub]

You guys are a trip! Thanks for the entertaining videos.

[@RadolphoYo]

Do you think it would be worth putting a 670 on a larger frame go kart like the off-road karts you have? I have one sitting still undecided on the power plant. Thanks.

[@AjackLee4]

Do it!

[@CarsandCameras]

We've been thinking about it. The frame really isn't strong enough for the torque of the engine.

[@RadolphoYo]

I have a lot of fab work to do but I believe I have decided on using a motorcycle or ATV engine so I don't have to deal with a torque converter and I have a gear range.

[@ragtimechris]

THE FACE IKE MAKES ABOUT GOPOWERSPORTS IS AWESOME 😂😂😂😂😂😂

[@DoRC]

sounds great with those new can on it. the open pipes just sounded unfinished.

[@artokiiskinen1058]

it would be nice to see everyone contributing, even Jackie, just say hello to us!!

[@Taytertot-Motoring]

Check the spark plugs and see where the fuel is at. Might be leaning a cylinder out with two carbs or going too rich. Looks good keep up the good work

[@swiftxb]

At 12:30.... the cat is like i'm getting the F-out of here again!!! ;)

[@shawnstrode3825]

Its so fun when Isaac uses his "high pitch" voice

[@chrissapp9507]

Hi guys, love the videos. Im no expert but my brother in law races carts with either honda clones or predator 212's and they pretty much tape off 90% of cooling vents. Most of the vet racers run there 212's around 400 degrees so tape it up lol and may i suggest a pocket friendly cam upgrade sold by Gopowersports and ARC, the BSP-3, just a suggestion.

[@jimciancio9005]

In all reality John and Ike, there's actually 5 - 90° turns into the cylinders each. The hidden 90° is inside your cylinder heads where the Air/Fuel enters the head and thus needs to get by your intake valves before entering your cylinders. Not only another 90° but the most restricted of all. Being a Honda clone V twin the Chinese have ripped off the intake port's aren't of the best flowing qualities and are pretty square in shape. Plus the air/fuel needs to make its way between the valves and the seats and around the valve stems. So porting and even some filling within these ports maybe necessary to produce a better designed intake and or exhaust port on these engines. Having built a professional racing engines for many years now and actually a few being V twin Briggs Vanguards and dozens of single jug engines used in racing circuits, these small engines were never intended for performance use. There's plenty of people out there that have proven tricks to getting the best possible potential from such engines though which might not seem kosher to say your car engine or V8 race engines. When you're able to buy off the shelf performance parts for such things, well these engines are a little bit more involved in the creativity process of achieving the best results from parts never intended to fit these types of engines. Nowadays there are many small aftermarket companies though producing quality parts and performance parts for smaller engines. ARC being one of these companies who builds custom parts for your more common engines. DYNO CAMS being another and ISKY Camshaft also sells products like valve springs, locks and retainers necessary to match up with your bigger Camshaft profiles. But you guys are starting off with basic ideas and dreams, which we all started from. The bonus of having fun with what you do for work is the cherry on top for sure! But just wanted to let you guys know your doing great so far starting from scratch! I did 3 years of small engine in schools and worked in machine shops growing up to eventually running a small engine repair business for most of my life. It's now morphed into engineering and much different work than I ever anticipated I'd be doing at say 18-24 years old Lol. But we live and learn, this is life, and for some of us we find ourselves hating what we do after the honeymoon phase wares off, but because it's easy enough to do we will tolerate this kind of unhappiness for sometimes our entire lives. It's when you find something that is fun or you enjoy to do, sometimes challenging, which keeps things interesting so you don't get bored with it. This is the ultimate dream come true, being able to work from home or close by, doing what you enjoy doing and making a halfway decent profit doing so! Not many people have this all in one bag, so please never take this job fo4 granted and continue to have fun doing so and the money will follow as well as your people who enjoy watching your videos. Congratulations guys you are on the up and up. One last suggestion, is to never stop learning either, the ones who fail or fall the hardest, are the ones that feel they know it all.

[@DavidReynolds-kr6yh]

I was doing a diploma of engineering course & as well as safety glasses, sometimes we also had to wear a face shield as well, like when welding. It's a pain to see through sometimes, can fog up, but better safe than sorry.

[@slimjim119]

can't wait to see what it will do

[@JByrd1989]

Might be a little on the lean side, dis coloring those mufflers that bad that quick. You guys may also get a little more out of it by synchronizing the carbs too. You'd just need a port in each intake and a length of clear vynil tubing with a little water with food coloring.. Attach each end to the ports on the manifolds, tape the center of tubing down and back up a yard stick. Fire it up and adjust the idle screws until the water is the same height on both sides of the yard stick. We used to have to do this on old 2 cyl motorcycles with 2 carbs....

[@bennett3848]

actually I put a muffler on my box stock clone to add back pressure. it helps it run a little better on small engines but on a v twin I have noticed no difference in power just a little off the start but nothing at the end of the straight away.

[@shakerattleandrollgarage7223]

some great engineering goings-on there, sounds and looks cool with those mufflers..hopefully they don't choke it ✌

[@lucasforeman169]

Damn! You guys did an awesome job!

[@isaacitllbefine7231]

thanks

[@pedfighter]

What kinda of camera set up are you guys using to make your videos I could kinda see the shadow of it and it looked kind of interesting

[@berendh.1952]

Shouldn't the intake runners be longer? Maybe you could calculate the optimal intake length for the RPMs this thing turns and add some intake stacks to reach this length.

[@amberleigh3779]

TY Jackie, and good job guys!!!!!!

[@isaacitllbefine7231]

thanks

[@whitesonatan-line2464]

y'all should build one with a 600cc motorcycle engine

[@TheNetworkingGuy]

the engine out of a CBR 600 rr

[@whitesonatan-line2464]

+physx of gaming yea or an r6 either way those go karts fly

[@kolarnerblogbattle2106]

what a shame

[@Cig4ras]

they REALLy should do it , i think it is going to be even faster than this 670cc go kart. PLEASE DO IT CARSANDCAMERAS ~

[@CarSpeed-tr3ry]

look at crosskart. that'll be great

[@NorwayVFX]

What about putting on velocity stacks and foam filters over them? Should increase the power a little bit.

[@jessamina1]

Awesome vid you should get high flow air filters and open up jets in carb possibly some nitrous but that may be over kill

[@Kholdstare0503]

"Whuder u talkin bout boy" "We don't have the nuts" "But I do have a stiff shaft" 😂😂😂😂😂

[@doodlebob3492]

Cory Sennett he said but I do have a solid rod

[@2cwik4u104]

awesome job with the mod.

[@ashtonflowers7942]

Nice job on the build and video! It would be interesting to make a couple longer intake runners and compare hp/torque between long and short intake runners.

[@theredmonkey8280]

Turn it into a stroker, lengthen the crank stroke and shorten the piston height and make mad power out that thing and get a custom cam and rocker arms and that thing will be a monster on the engine alone then EFI the thing and make more power on top of everything else (just a little food for thought for ya )

[@brandonharrinanan1616]

I watch u guys regular an I love all ur videos ! I hope one day I would be able to build a go kart ! Keep up the good work

[@TheGdcb]

I wonder what it revs to? Also if springs would make a difference?

[@dehCremus]

"Ike, i don't think we have the nuts to take out that bolt" ... "What are you talking about boy?" had me dying of laughter :')

[@BigMuddyCountry]

"I don't think we have the nuts to take out that bolt...But I do have a solid rod."

[@balsamicvin9935]

@@BigMuddyCountry hahahaha.

[@2LateIWon]

OUCH!!! Funny thing is I had a cornea abrasion last Sunday. THAT SUCKED I was wearing a full face shield too!!!!

[@mrxbrightside]

Relatively new to your channel, but love your videos! Keep up the good work! :)

[@DaveHiggoHiggins]

I reckon it sounds heaps better with the mufflers, sounds mean!

[@sterlingbrundick4369]

are you guys going to port the gas and air flow hole in the cylinder to make it faster or is that to much work?

[@davidjohnson8474]

Rotfl! The wheelies make me giggle! Nice job guys

[@tankdog03ify]

u need a fuel pump from a twin snowmobile intend of using a "T" splitter. just my 2 cents

[@tankdog03ify]

*instead

[@claytonbray5931]

Have you guys thought or putting headlights on the carts for night driving and such

[@frobinson2413]

you guys rock, it makes my day watching your videos. looks fast boys :)

[@isaacitllbefine7231]

thanks

[@zoominalways]

You guys should do a super pocket bike build to spice things up?

[@brandonandrew6844]

Where is the continued video? I want to see that thing go! The washer/flange idea was genius!

[@bendubois1749]

try using the gyro cables for the freestyle bikes to make an easily adjustable throttle set-up. I used these on my dual carbed bug back in the day

[@brandonhobock7086]

look up vacuum synchronizing multi carb motorcycles. you need to do that with your 670 it'll run a lot better. but good job guys!

[@GaryLordsWayMinistry]

They make a pick up sock for fuel systems so that when fuel runs to the rear of the tanks it will still draw as they did in airplanes upside down. Saw you having a problem on one of the drift tricks.

[@pyro1324]

Do they make superchargers for these? That would complete the project quite nicely.

[@MacabreMosaic]

Also use a vac. Gauge to tune those carbs to match each other , more power if things work together

[@olds97lss]

Think I would have rather had the simplicity of the single carb. Really, as rounded as the corners in the intake manifold are, I doubt your losing enough power to notice. Would also lengthen the chassis a bit so you aren't so knotted up to drive the thing. Really liking the exhaust note now. Not so sharp sounding. Damn cool rig guys!

[@rosspackett7059]

love the movies and knowledge. whats a good and fun kart kit a guy that is pretty handy can build?

[@seancoyne2370]

Have y'all thought about adding independent front suspension? I'm sure those wheelies are rough landing and can cause you to turn suddenly, maybe some shocks added to the front to support the fall?

[@dylanvincent8993]

top speed run great video always love it

[@JoseAlvarez00]

Hey carsandcameras, I have a question in regards to building my own muffler for my Subaru eh72fi (28 hp efi). It is mounted on a mud motor frame built by MudBuddy. We use them as shallow water motors to get to hunting spots. Now I'm not sure if there if this makes sense, but I'm pretty sure in some vehicles there is supposed to be some type of backpressure for the engine to perform as it should. Is that the same case with small efi motors? Thanks for the help!

[@kameronmills6580]

nice little burnout ike

[@VindicatorFFXI]

hey john.....i know the name of the show is cars and cameras.......so could u possibly show in a short video your video setup?... i saw you using a rode boom mic attached to a cellphone gimbal........what kind of phone....and do u use different software to record?

[@moparnick]

Can you please tell me where you got that steering wheel from I clicked on the link in the description under the video to go to go power sports but they don't have the steering wheel that you're showing in the video?

[@mr.clutchlol]

Haha Ike is always doing some dare devil stuff. Like when he first did a wheelie on the 670 , I thought that was crazy af! But then you top it off and do it in the dark with a new setup! 😁 haha hats off to you guys 👌🏻👌🏻👌🏻 that's some handmade quality stuff right here

[@isaacitllbefine7231]

lol. thanks

[@rcxmodelsuk256]

Cylinder re boar to 360 each? Or maybe 2 420 cylinders if they will fit.

[@codycarter7146]

Thanks for another awesome video, when I get some money this is what I want to do, build stuff like this. I do have an idea though, I don't know if y'all worked with a methanol engine before but converting a predator engine to use with methanol fuel, smells amazing and sounds awesome. Just an idea though.

[@Eastbaystunna]

The cat that Ike scared with the truck was in 12:27

[@Eastbaystunna]

In the video of the off road go kart find

[@tiporari]

Need to synchronize the carbs at idle and make sure they don't open one before the other. You can drill a hole in the intake and thread in a brass nipple, then use two vacuum gauges. Adjust idle screw on each one till vacuum matches and your idle is where you want it. should eliminate some of the stumbling when you stab the trhottle.

[@TrojanHorse1959]

Dual carbs might hurt your performance. The intake pulses on 1-2 cylinder engines cause them to turn on and shut off the fuel flow too quickly. A better carb would be a slightly larger than you need motorcycle carb jetted to run properly on your engine. You can read the plugs to find the right air/fuel mixture. Feed it with one of those small, cheap 5 psi electric fuel pumps and regulators. Around 1-2 psi of fuel pressure should be sufficient. Experiment with intake length to get the best balance of low and top end performance. Tie your exhaust tubes together with a tube of slightly smaller diameter to smooth out the exhaust pulses and provide better scavenging.

[@karlschweizer2554]

that so cool twin carbs like that thats a bad ass cart but not to be a jackoff please shortin the pipes it would look so much better im still with you guys really cool 55 or 60 mph is my bet

[@mowerguy6964]

2:42 I feel feel you man, I was working on the fuel line on a 1970 c70 chevy dump truck with a 427 v8 and holley carburetor and I had to reflare the new line from the pump to the engine cause the other person did not well I was wearing safety glasses to and got gas in my eyes I immediately washed it out and continued to work on the truck

[@thewooleelawoo]

So did they go with the 390 or the 420 carb?

[@bossman8771]

I feel that every time you go for a test ride it is raining or its dark love the vids

[@randombuilds8336]

paintball mask, impact resistant and they have a foam seal around your eyes. plus they also protect the rest of your face from large chunks of flying death wheel when they shatter.

[@TheJeremy5599]

THAT WHEELIE WAS F**KING SICKKK

[@swiftxb]

At 12:50.... the cat is like i'm getting the f#ck out of here again!!! ;)

[@furiousfred4934]

Imagine putting a turbo on that thing... Jeez that'll be one of the most brutal contraptions to think of 😝

[@rickquijano1633]

love your guys channel i want to start a build with your guys help and suggestion .

[@joegti10]

i think i found what my next hobby is going to be. thanks.

[@JoseLopez-ju8iy]

CarsandCameras you should adapt a led bar in the front just a suggestion

[@joshuafrench4583]

Use a throttle cable from a banshee. The are already set up for dual carbs.

[@kakalaa4k]

that kart is a beast