Shifter Kart Speed Mods: DIY Alignment, Gearing, Aero??

We hit a top speed of 70+ miles an hour last week on my 200cc Lifan 5 speed racing shifter kart, but we were hoping for more. This week, we're making adjustments to the chassis and engine to achieve 80mph. We're changing the gear ratio to a smaller rear sprocket, raising the top speed, changing the air to fuel ratio for more fuel to give us a more rich fuel mixture at high RPM, reinforcing the engine mounts, and doing a DIY alignment. Coming from an alignment with negative camber and toe in, our DIY alignment should make the racing kart more stable at speed. With these adjustments, we're hoping to increase the top speed and stability of the kart at high speeds.
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[@clintyoung9902]

Y'all should do a tribute episode where you roll out all of your builds side by side and talk about each.

[@pkuudsk9927]

Always do a Alignment in this order caster first then camber then toe. Now if you take a string and wrap it around all four wheels you can set the front end square to the rear end,failing to do that first will result in crab walk. that is very wrong. Move the rear axle until square with the front end. Set both front spindles at the same ( 0 being preferred ) caster and camber angle to start with.Then set all your angles record them using a protractor set to your level square and then you can make adjustments after testing until you find the best handling cart. Failing to do any of this will result in a piss pore / unsafe handling cart.All of this can be done with a square , string level , a good bubble protractor and a tape measure if you take your time. But not in ten minutes ,you have to creap up on each adjustment slowly check and recheck. The result is well worth the time on a fast cart.

[@michelebeck4311]

That rooster and issac cracks me up every time

[@dtalon92]

"I'm dealing with a bubble here, man." Put that on a t-shirt.

[@CarsandCameras]

It should be way more stable at speed now... you think we'll hit 80??

[@cornpoon01]

definitely

[@loneside4912]

the aero adds like... 100hp xD

[@fatassassin2493]

I think Ike should now make his own shifter kart but make it 2 stroke🤔

[@dingocat___5552]

Hell yeah, post on insta please?

[@AJvsEverything]

If you think of caster as looking at your spindle kingpin from the side, having the top of the pin leaning back toward you a couple degrees will make it harder to steer from a stop, but it will also make your steering track straight forward at speed and make it much more stable...

[@jackkottwitz5236]

"I'm dealing with a bubble" has to be the best line I've seen in a long time.

[@dmtb1857]

Very high quality shots man 👍🏼🎥 They get better and better every video

[@Kitao87]

Hey C&C. I want to 3D print you guys some mounts for your phones when using it as a speedo. Let me know.

[@riley7796]

Kitao87 3d print a ricky bobby shift knob for them

[@Kitao87]

Aint 1st, you're last

[@sneek86]

You need a bigger main jet to change WOT fuel ratio. the needle setting is for mid range fuel ratio changes.

[@dannyhansen9954]

Yup.. The needle have zero affect at full throttle!

[@300zxdriver]

Jeffrey Long That’s correct, at wide open throttle the needle has no effect. Its all main jet size. Do a wide open run then kill engine and check plug color to see which way to go with main jet.

[@tiffinohioguy2000]

correct!! the jet has to be changed or drilled out

[@theliberalrepublican]

Remember that increasing the main jet will richen the mixture at ALL throttle settings. You should set WOT by the main first, then adjust the needle to fine tune the midrange.

[@larrymunday7519]

The needle settings are good for 1/4 to 3/4 throttle settings in the transition to the main jet.

[@ProlificInvention]

*CarsandCameras* We've been waiting, thank you again for the excellent videos guys. I would like you guys to build a DIY gas turbine engine out of an old semi turbo ect. Right up your guys alley if your not familiar. Just needs an oil pump, a burn chamber (steel pipe) an injector for propane or kerosene, a blower to start it, and ear plugs. It makes thrust, cool on go carts, and fun to build.

[@CarsandCameras]

I've wanted to do one for years!

[@ProlificInvention]

CarsandCameras -Same-, you probably have seen all the videos on KZbin, there are some pretty amateur attempts (which I want to do eventually), but also many more amazing examples that look all pro with afterburners and super skookum controls. Not to mention that a go cart with one is ridiculous but for some reason like the epitome of carts, thanks for responding and the videos *CarsandCameras*

[@samb7367]

colinfurze on youtube will help his older videos

[@ZacharyFlory]

I actually liked the channel intro this time with the engine starting and the channel logo

[@sharpekenny]

Keep up the videos , y'all guys are awesome, and can't wait for the show on velocity the guys made it up there with roadkill, and by the way love it it's going to be on 4-20 😎

[@EvrttGrn]

Love your guys' channel. Talking about your plates you got. I would much rather overbuild in the beginning, instead of having to redo it later. I would LOVE to be able to hang out with all for a weekend. I could learn so much more than from watching vids.

[@unvvj69]

Great video guys as always. My dream cart is coming along nicely.

[@randyhertzberg7549]

your back ground music is way better than most other vids from other channels... thanks for that

[@fcknsick]

Positive camber has practical use in the rear of drift cars for the most grip while sideways

[@ClassifiedRecon]

ECUs and CPUs not the rear, on the front.

[@xxmurdernova12]

its negative camber

[@fcknsick]

Negative camber up front. A degree or 2 of positive camber in the rear.

[@gimble8638]

it would give you least grip while side ways on outer tire but most grip on the inner dude ;) so personally i cant really see the point of that, but hey its whatever suits you buddy, is it so you lose traction easier when you thro it in that you do that? (so in short LESS not more, grip when sideways as less weight is on the wheel with most grip)

[@ZayJP23]

“Hey I really like your channel”sub for a sub

[@captainchaos7706]

You guys have some killer production quality

[@dragynnbailey6335]

ive been building one similar to that i love your guys' videos and it helps spark ideas of my own currently im pulling an engine swap on a 8in lifted suzuki samurai though

[@nathankobasic284]

Might seem weird but I've never seen a better looking Rhode island red rooster before........ love the cart build

[@kristijanbajlo1748]

First camber explanation I understood although watching videos dedicated to it :)

[@CarsandCameras]

Oh good! Glad I was able to help

[@SailingFrolic]

LOVE the intro, guys

[@TheToyotaGuy]

The camber and toe explainatioms were pretty spot on. If you’d like more information about road racing vehicle dynamics, read the book “Tune to Win.” It’s a pretty simple read that dives into some of the math behind vehicle dynamics. The main goal of all those adjustments is to keep as much of the tire in contact with the asphalt as possible through a corner. Another not about aero, is you need to make sure the center of gravity and center of pressure are in pretty much the same spot. Having a center of pressure elsewhere can lead to erratic vehicle behavior. I hope this helps! Keep up the good work!

[@ranchhandrandy3213]

Ok, maybe I missed an episode somewhere along the lines and missed where it started...idk. but what is the beef between Ikr and the rooster lol? Great vid as always, guys. Looking forward to seeing the Ducati kart in action soon!

[@chadrogers68]

"I'm dealin' with a bubble here.." IkeClassic. Needs to be on a shirt

[@egolliher6933]

Castor helps with the death wobble again you have positive and negative negative is forward positive is backwards the farther forward you go the quicker it'll turn but the more stable then steering will be the further back you go the slower it will turn but the more as stable it is always great video I enjoyed watching you guys work on go-karts

[@colerippeon3903]

Hey guys. You all are doing a great job. Ive been following this channel for awhile now and the builds get better and better. You all have done it all but what i would like to see is an actual car engine running on a go kart frame. Nothing crazy like a v8 but a carb 4 cylinder or something. Rear mounted buggy or something. Not a demand but a i think alot of people and i would be interested in a completely different style build in the future. Just an idea. But keep up the awesome work guys! You all are doing great

[@josepherickson7618]

Love the video badass build super awesome

[@troycrowder9942]

IKE is that darn rooster still sizing you up you better start showing you have spurrs LOL

[@totaldestruction2174]

Nice grinder mount!

[@dave691974]

For sure 4/20 , great vids guys keep it up!

[@TDG2654]

The new intro is awesome btw

[@a_new_leaf_eric5828]

Damn i subbed back before yall hit 100k now look where ur at. Crazy. Also im also in nc. Greensboro area

[@dream2sea]

Eric Jones Yeah, they have 420 k subs now. 😂

[@JohnWheels]

Nice vid, Can’t wait to see it do 80

[@colethomas3331]

Positive camber is used on oval tracks (that’s all I do) it helps turn the car turn in with positive camber on the left front so in a nutshell it helps it cut into the corner

[@CarsandCameras]

Good to know!

[@lyedica]

For future reference. Checking toe. Make a mark in the middle of each front tire. Roll mark to front. Measure between each mark. Roll mark to the back. Measure between lines. Adjust as needed. It'll be fine....

[@anirudhaarvind1736]

What about us non-Americans? I really want to watch the Ducati go-kart episode too!! I'm a huge fan. Been watching y'all since the beginning!

[@NoWay-vz9xw]

Nothing like a 4/20 aire date.

[@charlestownsend4380]

Hell yeah

[@OF01975]

I approve

[@psygn0sis]

Yup... Hitler's birthday.

[@dragynnbailey6335]

fr i just wish i was back in washington for it

[@apollosport2895]

No Way and 420k subs

[@KJMTurbo]

It's supposed to cock a wheel, helps with turn in and cornering. And Caster is just a pivot angle, higher the number the more it wants to follow forward. It's why most cars return to centred when you let go of the steering wheel.

[@johnklein7269]

I can't wait for your next video's

[@almoastskater1234]

I’ve been subscribed for a long time lol long enough to know y’all are making a decent passive income

[@dylanmoulton6285]

Great vid to watch on my 14 birthday

[@User22435]

Dylan Moulton enjoy your time now it only gets harder from there😂 happy birthday tho man!

[@dylanmoulton6285]

57210 JTRR haha thanks check me out on Instagram @ diesel_lover_04

[@BanjoMasterPete]

Positive camber can sometimes be used on the rear wheels in high horsepower situations like drag/drift. In high horsepower situations, the rear end squats under load, evening out the camber during acceleration.

[@johng6673]

Positive camber, or camber out can be used for tracks such as NASCAR. So the inside tire can track level at high speed turns or bite in on dirt.

[@colindavis2322]

When are you guys going to do a build off against RBG

[@CarsandCameras]

The mini bike builds in TX may turn into a build off of sorts- we don't have a concrete build off scheduled though

[@deralte241]

this is the Video i have been waiting for yeras

[@24441Chris]

Caster is the axis from your upper pivot point(usually a strut on a car) to your lower pivot point(the lower ball joint. Caster is viewed from the side of the vehicle. Positive caster is what drag cars usually use. Positive caster helps with higher speeds. Think of the front forks on a motorcycle they typically lean back. Negative caster I believe makes the vehicle harder to turn etc... not really practical for high speeds if im not mistaken.

[@crystalperez3026]

Can’t wait to meet yall

[@crystalperez3026]

I live in Dallas tx

[@nathanlima8245]

Positive camber is used for trucks that tow or are used to have alot of weight in the vehicle. It helps make it so that when the load is in the vehicle the tires lean in if they didnt have positive camber, when the load was applied the wheels wouldnt have negitive camber

[@philmccuen]

Car manufacturers recommend positive camber usually because this induces understeer. The reason being the average white knuckle driver can correct understeer more easily by slowing the vehicle rather than competently controlling oversteer... or something like that.

[@austinphillips5115]

Just be forewarned, there is a point of diminishing returns with negative camber. There is times when it definitely helps, but too much camber can be devastating on tired and can cause too much weigh shift and a loss of grip.

[@dirtshower250]

I did a backyard alignment on my lifted jeep... will do about 70 and I can take my hand off the wheel. Also 70 is about maxed out 😂😂

[@vintagespeed]

raising the jet needle adjusts your mid range, main jet will adjust top end along with raising the float level in the bowl so you dont run lean on top. alternatively, you can run a smaller air stack which will enrichen the entire off pilot range.

[@ethank8084]

Love the vids

[@TheToggleguy]

Positive camber (Labelled as out in the video) IS used in street cars as roads are designed to have a curvature with a high spot in the middle of the road to reduce the amount of standing water after rainfall, and so many vehicles are designed with a bit of positive camber to account for this.

[@oliverbradburn5727]

Great vid. Can I watch the show in england

[@eshollen]

I'd like to see the process yall go through when finding and researching any particular kart or bike

[@Wallis259]

Y’all should do a Busco Beach meet up with the fans. A bring your karts out and ride the trails type deal.

[@dream2sea]

Simon Sanders I think they said they were deciding on a date...

[@geecee4]

Ike ought to go sneak behind that chicken and scare the heck out of him. Payback! LOL 😂

[@ghomerhust]

when it comes down to it, the actual alignment shops do basically the same thing that Ike was doing, except theirs uses a series of lasers instead of levels and tape measurers. but prior to using lasers, this is pretty much how you set a car up

[@DSC1320]

Positive camber is used in independent rear suspension drag racing so when you launch you get total contact patch.

[@eddy42057]

build something 2 stroke. would be awesome.

[@neilmarshall4927]

Eddy and big! Like a 500cc CR500 or KX500 engine

[@eddy42057]

Neil Marshall damn that would be insane

[@NoWay-vz9xw]

Neil Marshall, and make sure they burn benoil 25:1 to ensure the most smoke possible. Love the 2stroke 🚬.

[@sethcarpenter6465]

Yeah do like a cr 500 250 or a yz 250 and kx500 it would be sick

[@kerutc]

SR500!

[@TheJackalxy]

Positive camber is used in an empty Piaggio Apecar, a three wheel 50cc 2 stroke pickup. When loaded with something heavy it "squats" and become neutral/negative camber

[@nickthecarguy-channel]

John the auto shop teacher!

[@richardjoyce1102]

I saw the 100mph Ducati video on velocity, that’s how I found your channel

[@trifiiniti9357]

Positive camber is useful for the rear end of a car. When the car squats during acceleration it will level out the rear wheels on a lot of irs cars

[@simpleg7559]

R.I.P old intro, You will be missed. :'-(

[@mylostwife5230]

Outward camber can be used for off road machines were you can go over rocks pointing up and it gets the middle of your vehicle up

[@Biscuitabuse]

Bring back the Black Widow! Btw love the shifter Kart.

[@Ziggy75gg]

Quick and dirty caster explanation. Negative means good staying straight, hard to turn. Positive means easy turning, hard to keep it straight. There is a lot more to it but, I thought I would try the #it’llbefine method.

[@stevenbeckett2486]

Both negative camber and positive is used in oval racing. Most asphalt racing uses toe in but in dirt they mostly just use toe out.

[@basshunter2302]

Wow guys good job making Velocity!!!

[@DeliciousDeBlair]

Most vehicles I see notable camber on is on rock racing where they are climbing over awkward and irregular obstacles, with really long travel. When the high travel arms go from max to min travel, depending on the types of terrain you are going to approach, you will be looking to moderate your angles so they do not reach to extreme at any point and throw off your contact or add unwanted steering caused by the wheels leaning so far over that they cause the vehicle to steer that direction. Caster is where you rock the axis of the steering knuckle backward, causing gravity and your camber to work in unison, forcing the steering wheels to be force centered with the line of the vehicle if you release the steering wheel. Caster is the natural tendency of a properly aligned vehicle to return to the 'straight forward' wheel aim, as well as the tendency to remain in that position both while rolling and at rest. Too much camber and steering becomes more difficult, but at the same time, it causes the steering to be tighter and more responsive. Motorcycles tend to steer by their caster more than the turning of the handlebars. The caster of the motorcycle is managed automatically by the rake/slope of the forks in relation to the line/level of the road.

[@upsidedowndog1256]

Should be fun! When tightening jam nuts on tie rods make sure you have freeplay to keep from binding. Rolls Royce calls this "twizzle".

[@bryantkeener169]

Hey guys I’m a racecar driver so I deal with caster camber and toe a lot but a good tip would be to not set toe at 0 cause it will dart around at high speeds! Normally an 1/8 or 1/16 toe out is perfect for stability!

[@dadamark1]

go to lows and get an angle finder for your camber works awesome

[@joelducsai5400]

Live the channel 💪

[@rastamanralph6670]

A spring loaded chain tensioner will help with the chain coming off when you burn out! And help with accelerating through the gears!

[@jdmjedi777]

Caster is what brings your steering wheel back to center with less effort. It's how far forward the wheel hub is relative to the shock or strut location or in this case spindle.

[@davidtappe5337]

👍👍👍👍👍👍👍, see you guys at the swap meet. DVR is set.

[@TrojanHorse1959]

Front tires should be toed in 1/16" to 1/8" because as the kart moves forward the tires will toe out just a bit. This will allow them to become straight and it will steer better.

[@120565rcj]

Caster is really easy. Castor is the primary determination whether or not the vehicle is going to pull from one side to the other. For instance if the right front wheel is more forward from the left, the vehicle will pull to the left and vice versa

[@rcsendandblast1579]

Omg still scared of the Rooster. Lololol. I'd be toooo. That's flippin hilarious to see a grown man hiding from a small ground bird.

[@fadfouda95]

And for those who do not live in the USA, do we have access to velocity on Internet to watch the episode ? Or any other access like KZbin ? Thanks ;)

[@bwxmoto]

Sweet

[@Toolingabout]

I believe that needle only affects idle and a brief second off of idle, after that the needle is raised and the jet is wide open, so if you want more fuel on the top end you will need a larger jet.

[@derpwnd3213]

Ive an old suzuki king quad with diff lock/2wd/4wd and its got crazy negative camber.

[@danthecarguy5494]

You guys are having your Ducati build air on 420😂😂😂

[@hjc4552]

I think you still need to do my idea of the Ricky bobby shift knob 3D printed

[@CarsandCameras]

Who has a 3D printer???

[@nateb1297]

yes

[@scz71man]

I can 3d print you one or i can CNC machine you a billet one out of almost any metal or material you want.

[@Kitao87]

Guys i already posted i want to print things for you. 3D printed phone holders to bolt to the steering wheel when yall are doing top speed runs, shift knob, whatever you like.

[@chevyguy5525]

WOO! THE VELOCITY EPISODE AIRS ON 420!!! IT’S GONNA BE LIT!

[@jimcurtis9916]

Does Go Power Sports have a kart stand so you don't have to sit on the floor to work on your karts? I had one back in the good ol days when I was racing karts.

[@trevorseelen5972]

For that camber if you look at some old tractors like a 826 international front end it had a lot of out camber

[@cubracer55]

Also set rear tire stagger. Use air pressure to make the tires the same circumference side to side for less rolling resistance due to having a locked rear axle.

[@Dj_lilfate]

We add positive camber by extending the a arms to lowrider so when u raise up the front it will straighten the wheels out

[@rustybrowneye]

And your camber out scenario is used by lowriders for a couple of reasons. Aesthetics and it take stress off the ball joints a little bit. Also the way the tires tuck with access positive camber spaces the crossmember further away from the ground when the suspension is fully compressed like if you are hopping. So that way it doesn't hit

[@micahmorris2905]

fuzzy wuzzy lowriders got it from the drift world which got it from various racing disciplines. Negative camber is in use in every racing situation yoube ever witnessed

[@sharpekenny]

Casters kind of like toe in toe out when it comes to the position of the tire, you know you can remove the top or the bottom of the tire in and out in the end to adjust its camber, think about it in a like a plus sign on your tire when you measure a tire out you have a point up and down and you have a point Center of cross, Caster allows the tire to either point in or point out towards towards the center of the tire rotating as it track straight

[@funkadidgerous]

Can't wait to see this go down the road. I still think a smaller steering wheel would look better and give you more room. Or how about t-handle/motorcycle steering?

[@johnc6466]

Tatra 8x8 military launchers use positive camber with their suspension to improve ground clearance, but no other stock vehicle that I know of uses positive camber. Some trophy trucks do though.

[@zackmcguire3837]

Look at all those chickens love the videos

[@ThatOneGuy077]

Positive camber definitely on trophy trucks and buggies. The science on it Idk. But want to say because of jumps etc will put it to neutral when they land, but some do run negative. Some ralley cars have some positive depending on fwd awd and rwd. Also depends on terrain and drivers feel when test running off road. And then NASCAR which will have negative on the right side, positive on the left. And we all know why that is.

[@wi11y1960]

Hope your going ot film the time at the swap meet

[@CarsandCameras]

We definitely are