shifter kart engine size??

[zip kart]

Well guys i have a twin honda engined pro kart
and im think of swaping the engines over a new stomp 140cc pit bike engine der 18hp with all up 4 gears manual and start in gear with rev limeter
would that engine be fast enough to pull my kart
its a senior biz kart
can get a brand new 1 on ebay for under 450euro

 

[OzFab]

For memory, you twin engines are GX140s correct? They have an output of around 4-5hp x 2 = 8-10hp & you want to replace them with an engine that puts out 18hp? DO THE MATH!

The only problem you may run into is drive train; it has rear mounted engines, correct? With a dirtbike engine (or any bike engine for that matter) the chain must run back from the engine whereas, you need the chain to run down...

 

[zip kart]

There gx160s

 

[OzFab]

Ok so, total output of 10-12hp; that's still less than 18hp

 

[exenos]

Unless they've been built up a bit, then your looking at roughly the same power, just one option has gears and the other doesn't.

 

[zip kart]

Type in stomp 140cc into you tube and you will have an idea of the power
cant send a link on my phone

 

[lude]

Type in stomp 140cc into you tube and you will have an idea of the power
cant send a link on my phone

i have seen it done on a race cart chassis and it looked good enough i started to attempt the same last year until i needed money and it was scrapped, it would be a good budget shifter cart, but you would need a new fuel tank and pump, one of the nice things about them is they have four threaded bosses on the bottom of the engine that would be more then strong enough to mount the engine with, i say do it if you have some skills to get it done,

 

[zip kart]

I already have central racing tank and fuel pumps from both of d honda engines so do u think it would be fast
its a senior biz kart

 

[OzFab]

The thing is that, unlike single geared karts, you can gear the final drive as high as you like*, you'll still have decent acceleration but, your top speed will be much higher plus the bike engine will rev higher than a gx160.

*A single speed kart needs to be geared around 5-6:1 which will give you around 30-40mph (depending on other variables). With a multi gear setup, you can gear at 3:1, have slightly better acceleration & more than double the top speed...

 

[lude]

I already have central racing tank and fuel pumps from both of d honda engines so do u think it would be fast
its a senior biz kart

it will be fast, even if it had less hp then the two clones, the 4 or 5 speed transmission will add alot of speed, low end, and just out and out fun,

 

[zip kart]

Would a 125cc loncin dirt bike engine be fast enough to pull it
i can get a whole bike for cheap
has 4 gears 1down 3up

 

[zip kart]

And its 4stroke

 

[OzFab]

It should be...