PLEASE HELP!! driveline problems need torque!!

[kroncaddycustoms]

hey i currently am new to go karting ect anyways me and my buddy built a full cage mini trophy truck and is almost complete i have a 11 hp honda gx340 off a pressure washer, i put a centrifugal clutch from princess auto and burnt it out with in 5 mins had no pull at all to it, the rear end is off a 110cc giovanni atv, 37 tooth rear sprocket and 16 inch tires i beilive, HOW can i get all torque i dont care if it goes 10 mph i just want to be able to have great acceleration and go up some hills? any ones help would be \\\extremely appreciated to walk me threw on this....

 

[B.M.800]

Bigger rear sprocket, jack shaft too. Can do wonders.

 

[kroncaddycustoms]

do you think this engine will produce enough torque or power, how big of sprocket 60 tooth? its 6 feet long and with engine on back swing arm with shocks weighs less then 175 pounds lol

 

[devino246]

First, a few periods can do wonders for clearing up a paragraph.

Second, a 37 tooth sprocket is wayyyyy to small. You need more like a 72 tooth at the very least, and since you want torque, a jackshaft is in order to gear the kart down.

 

[fowler]

even better idea
sell the 11hp and get your self a 250cc bike engine
it will kick any 11hp industrial engine no matter what u do to it

i dont know how much an 11hp goes for but a bike engine will cost u bugger all

 

[cant kech me]

even better idea
sell the 11hp and get your self a 250cc bike engine
it will kick any 11hp industrial engine no matter what u do to it

i dont know how much an 11hp goes for but a bike engine will cost u bugger all

what is it with you and bike engines?

 

[Russ2251]

what is it with you and bike engines?

Excellent question.
Personally...I don't have time to shift. I will pass most of them (and stay ahead) before they get out of 2nd gear.

 

[fowler]

Excellent question.
Personally...I don't have time to shift. I will pass most of them (and stay ahead) before they get out of 2nd gear.

maybe my current 250 but not snow moble powered karts
anyways ill pass u when u reach top speed

i cant say how we would compare on bituman because i dont have any to race on

i drive dirt roads and paddocks and i just dont see any industrial engine getting the performance of a bike engine
better rev range
better power to weight
got a gear box

 

[Russ2251]

maybe my current 250 but not snow moble powered karts
anyways ill pass u when u reach top speed

i cant say how we would compare on bituman because i dont have any to race on

i drive dirt roads and paddocks and i just dont see any industrial engine getting the performance of a bike engine
better rev range
better power to weight
got a gear box

Got a vid?

 

[fowler]

of what?

my 250 yeah i posted one in my build
my piranha, no it is still in peices but there is a build log for that

edit
nop i lie
i dont have a vidio of the 250 moving just one of it running late at night

ill get one in 2 weeks when im home next

 

[cant kech me]

fowler, i wasn't challenging you, just wondering, cause yes, a bike engine is better, but its also overkill for a yard kart and little bit expensive for some of us. and you kinda seem waaay biased too.

 

[Bluethunder3320]

i rode a yamaha YZ125 next to my friend on my baja warrior. of course i was faster.

yamaha:

125cc
2 stroke
6 speed
liquid cooled
tuned pipe
V force carb
race engine

baja warrior:

196cc
4 stroke
1 speed
air cooled
straight pipe
stock
generator (or tiller, etc) engine...

once i got into 3rd gear, i blew right past him. he was at a constant 4200ish RPM. now lets put price tags on those bikes brand new.

YZ125: $6,250
warrior: $600ish (got mine for $275 used)

the yz125 engine had so much power it was scary. hill climbs? i had the throttle wide open on the baja. got about halfway up a VERY steep hill (about 100 feet high too) and it came to a stop. second gear, wide open, my friend took his YZ straight up that "cliff." the engine didnt show stress at all. it stayed at redline. he also left a rooster tail of dirt and sand in the air behind him.... theres a huge cost difference between the 2 types of engines, and the power is drastically different.

 

[fowler]

fowler, i wasn't challenging you, just wondering, cause yes, a bike engine is better, but its also overkill for a yard kart and little bit expensive for some of us. and you kinda seem waaay biased too.

i wasnt takeng it as a challlenge
for russ i did but not seriously

yes i am way bias
and yes somtimes i get carried away and add it to situations that dont need it
but from his pics id say he doesnt have a typical yard cart

i dont really know the situation in the us but here in aus old bikes and industrial engines go prety close hand in hand for price
espesially when u add a clutch sprockets, cables, chain and so on that come with a bike