New here with a project.

Status
Not open for further replies.
K

KartRacer695

KartRacer695
Messages
67
Reaction score
0
Location
Saskatoon, Saskatchewan
hi all, Im not new to go-karting but new to this forum, i have built a mini quad, and i own a 1970s margay go-kart. I have a new project i would like to do and share my ideas with you folks. I have a youtube account call "kartracer695" with over 70 videos with go-karts, engines, honda z50s, etc etc. The project i am wanting to build a go-kart but in the style of a small car, with a bush bar on the front and flash lights for head lights etc etc. So it is going to be a live axle, 1'' of course, with tires all around of 11.5'', most of the parts will be coming from northern tool, spindles, hubs, tires, clutch etc etc. The rest is coming from princess auto, such as 13hp PowerFist Engine. I have already three 5/8 pillow block bearings, a bunch of difffernt sized sprockets so i can test with gearing, locking collars, a 48t #35 sprocket to use as a disc brake right on the jack shaft. also a floating disk brake caliper with bracket so i already have about $150 of parts, i dont want to use anything used unless i need to. i also made a trip to the junk yard and picked up an old chevy steering wheel, this project will really get going once i get a job (Im 14) which im making resamays this monday.
 
Last edited:
K

KartRacer695

KartRacer695
Messages
67
Reaction score
0
Location
Saskatoon, Saskatchewan
its going to have a jack shaft, hilliard extreme duty clutch and comet went out of busniess so thats not an option heres a pic of the frame.
and im not doing any serious off road just dirt/gravel roads. i know i sound like a noob right now but i have a pretty good idea of how.
 
freakboy

freakboy

the names 'mater
Messages
3,961
Reaction score
2
Location
hick town
alright if i were you i would NOT put the brake on the jack shaft cause if the chain from the axle to the jack shaft snaps.. which i have had happen on my kart before you will completly loose brakes.

and looking at your two sprockets on the jack shaft how do you plan on switching the gears while going? if you want to make a simple 2 speed gear box you can set your kart up for a slip belt type system... which then it will grip better then a cent clutch and if you have two of them you can disengage one of them and then engage the other for a different gear ratio...... is your frame going to be flat like that? if so you might want to concider adding a little bit of bracing... also im pretty sure if your doing any off roading or what ever that you consider adding a little bit of suspention on there.... lets just say unless you got tires like baloons on your kart its gona be a really bumpy ride..
 
K

KartRacer695

KartRacer695
Messages
67
Reaction score
0
Location
Saskatoon, Saskatchewan
hey thanks for your replie, i think i will just put a disc brake on the axle, I only had the disc on the jackshaft because i was going to just do a dead axle. The 2 sprockets will not shift as im driving, I will have to slid it over and use a chain tensioner for the extra slack. I have drawn up the frame from the side, really simple. It wont be any serious off roading just gravel roads and the yard.heres some more frame pics.
 
bajagokart

bajagokart

New member
Messages
779
Reaction score
0
Location
Red Deer, Alberta, Canada
what i dont get is that your making this more complicated than you have too! honestly! why not just get different drum sizes on you clutch and change your gear ratio that way, it would be alot easier!
 
freakboy

freakboy

the names 'mater
Messages
3,961
Reaction score
2
Location
hick town
why dont u just do my idea and go and do a belt type tensioner system with two different gear ratios? just have two pullys on the engine shaft and 2 on the jack shaft then have two levers that lock to tighted each pully then there you go fast and slow without changine anything
 
Doc Sprocket

Doc Sprocket

*********
Messages
15,677
Reaction score
146
Location
Ontario, Canada
You could also save a pound or two and some engineering by deleting the axle chain tensioner, by getting the chain very close to the right size and shimming the axle and/or jackshaft to eat up the slack.
Trailer?
Have you worked out your final drive ratios? Your drawing doesn't show how many teeth you propose on the axle sprocket, but it does look like your tyring to acheive six forward speeds- 3 primary ratios, 2 secondary. I don't wanna be a killjoy here, but you look like you're going bonkers in the hardware department for something that's not going to be very functional. Remember- this is not something you can shift while moving- so whatever ratio you've selected, you're stuck with. Too low, you go putt-putt. Too high, you smoke the he// outta your clutch and move little. Even if it's called "extreme duty."
And how are you going to change ratios? If the sprockets are fixed to the shaft, the chain won't be at all happy working out of alignment. It'll wear badly and repeatedly toss the chain. If the sprockets float, there will also be alignment and wear issues, including the shaft they slide on. And I KNOW you don't wanna be doing gear changes with a hex wrench!
Seriously- Give Freakboy's point another thought. Set up right, you can have two or more gear ratios, shift-on-the-fly, and a built-in clutch. Save money on the Hillard. Start off on low, when your speed peaks, let off the throttle, slide the gear select into the next position, put your foot back in. Cheap, easy, functional, and probably lighter. Never an alignment problem either. You even have the choise between ising a seperate tensioner as your clutch, or use the shift mechanism itself! And another thing, your high ratio could bypass the jackshaft altogether if you so design it!
We're not trying to pee on your campfire, just offer more practical alternatives. Cheers!
 
K

KartRacer695

KartRacer695
Messages
67
Reaction score
0
Location
Saskatoon, Saskatchewan
i already bought a bunch of stuff :( I think the belt tensoier is a great idea but i think i will have to go with the set up i just did, i know its not the best idea but maybe i can use less sprockets? i spent like $150 I think i can untighten the sprockets and slide them over for different ratios. maybe when im pulling a trailer? thanks for the replies!
 
Status
Not open for further replies.
Top