GoKart Build Advice Needed

[SnodyKnives]

Hey Friends. My kart is a relatively heavy two seater with 25x12x9 rear and 20x7x8 front tires. I will be using it off-road on sand and mud. I have a Honda GX 390. I am looking for suggestions on what torque converter you guys recommend as well as what sprockets and gear ratio I need to be running. Any advice or installation or examples would be greatly appreciated. Thanks in advance.

 

[rushking19]

Hey Friends. My kart is a relatively heavy two seater with 25x12x9 rear and 20x7x8 front tires. I will be using it off-road on sand and mud. I have a Honda GX 390. I am looking for suggestions on what torque converter you guys recommend as well as what sprockets and gear ratio I need to be running. Any advice or installation or examples would be greatly appreciated. Thanks in advance.

Get a comet torque converter

 

[OzFab]

Get a comet torque converter

Oh yeah, that helps NOT!

With the "big block" engine, you'll need a 40/44 series torque converter but, be prepared, IT'S GONNA COST YOU! (somewhere in the ballpark of $300-$400)

On those MASSIVE tyres, I suggest you don't go any higher than 8:1 (high number = low gear, etc)

 

[rushking19]

Oh yeah, that helps NOT!

With the "big block" engine, you'll need a 40/44 series torque converter but, be prepared, IT'S GONNA COST YOU! (somewhere in the ballpark of $300-$400)

On those MASSIVE tyres, I suggest you don't go any higher than 8:1 (high number = low gear, etc)

Sorry forgot to say what type

 

[tazmannusa]

Hey Friends. My kart is a relatively heavy two seater with 25x12x9 rear and 20x7x8 front tires. I will be using it off-road on sand and mud. I have a Honda GX 390. I am looking for suggestions on what torque converter you guys recommend as well as what sprockets and gear ratio I need to be running. Any advice or installation or examples would be greatly appreciated. Thanks in advance.

My recommendation would be if you have the room and budget for it would be go with the 780 or the 94 series, you would get a lot wider gear ratio , Lot lower low range with a bit of overdrive on top. The 40/44 would work fine to you just have to keep your ratio low and your top speed will be in the 25 mph range

 

[SnodyKnives]

Thanks

You guys rock! I appreciate the information. I'll have more questions soon. Much Respect

 

[OzFab]

You guys rock!

We know this

 

[MancoGX390]

Hey Friends. My kart is a relatively heavy two seater with 25x12x9 rear and 20x7x8 front tires. I will be using it off-road on sand and mud. I have a Honda GX 390. I am looking for suggestions on what torque converter you guys recommend as well as what sprockets and gear ratio I need to be running. Any advice or installation or examples would be greatly appreciated. Thanks in advance.

I have a GX390 running through a comet 40 series torque converter to 22" wheels, I've got mine set up to a 6:1 gear ratio with a 9 tooth jackshaft sprocket and 54 tooth axle sprocket, get about 50mph tops out of mine! Recommend this setup!