What engine can i get for this go kart chassis?

[crgrr]

Hi there guys i am in desperate need of a cheapish engine i am willing to spend up to 250 pounds on an engine for my go kart... i will put an image of it below. the highest cc honda engine i can get to fit on it is a honda GX200 and that is not fast enoguh for i dont think? i want an engine that is not much more that 250 pounds that will fit my go kart chassis and will go at about lets say 50mph or more! i have been looking and looking for so long now and cant seem to find any i have been working on my go kart for a long time now and i am so pleased with how it is coming along.. the idea is that i am only 16 i am going to start of with an engine that will go at about 50mph to 70mph and once i get better i might upgrade to a rotax or something but for now i really really need to find what i said above and it would be sooooooooooooooo great if someone could help me find one.. picture of my kart below!... cheers so much for help guys from dan

http://www.kartingextra.com/attachment.php?attachmentid=35&d=1213130490 picture

 

[kibble]

Yeah, you're probably not going to see that kind of speed from a gx200. What you need, is an engine with a transmission.

By 250 pounds, you're talking about price?

 

[crgrr]

yes 250 pounds lol money wise umm would you be able to find ne for me please ?

 

[oscaryu1]

Yup, transmission is the only way you're gonna make it go 50+ at that budget.

Actually Kibble, my GX200 currently the way it is (perf. cam, then complete ) can turn 7,500... so I'm pretty sure it can do 50. It did 35 at 3,600 governed.

 

[crgrr]

oscaryu1 hi there what did you d to your gx200 to make it go about 50 ??

 

[crgrr]

what do you mean by perf. cam, then complete? and im going to get the ENGINE DEGOVERNED & UPGRADED will that make it any faster and what do you mean by transmission so sorry its just i am really new to the whol engine thing :S

 

[crgrr]

please help me out pleaseeeeeeeeeeeeeeeeeeeeeee

 

[Kenny_McCormic]

A used dirtbike motor should work.

 

[crgrr]

they all look too big and what could i do to a honda gx200 to make it faster

 

[Kenny_McCormic]

New billet flywheel and rod (around $200 to $300), stiffer valve springs, port cleanup (DIY), remove gov (DIY), exhaust header, all that should be around $300-$400USD plus around 6 hours labor and you will need a good understanding of engines. After you have that base platform built you can put in a high performance cam (USD 50-200) for even better performance.

People fit 100-300cc dirtbike engines in those frames all the time, its called a shifter cart.

 

[crgrr]

hi there could you send me a link to a picture of a moterbike engine that would fit mine

 

[crgrr]

ok well i have decided its not going to be quick enough so i am going to get a tkm 100cc engine 2 stroke which will go about 80-90 mph i cant wait to get one !!

 

[Jerryburger]

Might I suggest a single cylinder snowmobile engine? They're in the 240cc- 300cc range, spin 6-8k rpm no problem, and, if you do your homework (like I didn't) you can find some that have a fairly standard output shaft to work with. Probably within your price range.

And oscaryu1....
Hitting 50 will be NO PROBLEM for you- My HF 6.5 (completly stock) got the lowrider up to 48mph @ 4700 rpm... all I did was reach back and hold the governor wide open. (not the most scientific method!) and that's without any mods! I'm thinking of modifying the exhaust, rejetting, and getting the better valvesprings, con-rod.....
It's just hard to justify yanking apart a motor that still has that "New Motor Smell".....

 

[oscaryu1]

New billet flywheel and rod (around $200 to $300), stiffer valve springs, port cleanup (DIY), remove gov (DIY), exhaust header, all that should be around $300-$400USD plus around 6 hours labor and you will need a good understanding of engines. After you have that base platform built you can put in a high performance cam (USD 50-200) for even better performance.

People fit 100-300cc dirtbike engines in those frames all the time, its called a shifter cart.

You can save a bit and get a aluminum flywheel at www.nr-racing.com , rod, get it with the bearing inserts. You won't have to replace the whole rod when it wears down.

If you're going below 6,500, 18lbs springs will do fine. Any higher, you'll need 26lbs springs, and better retainerse.

Removing the governor is quite easy. Guides at: www.affordablegokarts.com

Exhaust header? 1 stage is good enough. You can both find them at www.nr-racing.com and www.affordablegokarts.com

Just a tip, if the sprocket is mounted behind the engine, don't remove the gas tank. This weaks the block... the gas tank sort of acts like a girdle. Also, get a Faster Motors girdle. Made for Briggs but fits the Clone great.