Jack shaft ratios?

[vwbuggyhead]

Can someone tell me how to calculate the jack shaft sprocket sizes? got a baja motorsports frame with a 19" rear tire, 54 tooth rear sprocket, 10 tooth clutch on a 6.5 Tecumseh OHV. This is a bare frame project I am building. Building a crawler, not wanting a speed demon.

 

[1992suburban]

take the ratios and multiply them..

10/40 and a 15/30 would be 8:1 ratio

 

[1992suburban]

http://www.compgoparts.com/TechnicalResources/JackshaftRatioCalculator.asp

 

[1992suburban]

That deserves a THANK YOU LOL

 

[vwbuggyhead]

Thanks for the link. it gives me somthing to work with. As for go fast! Hows a 1974 VW bug with a Subaru Legacy engine grab ya!

 

[1992suburban]

NOT SO MUCH

VW bugs are fine as is. all 54 hp LOL

 

[vwbuggyhead]

Yea, i've had about a dozen over the years. 68 and up 1600cc are rated at 60hp. With stock carb they make great buggys. But I saw a conversion at Daytona bug fest last year and had to give it a try. still in the building stage at this point. hope to have it done by late spring...

 

[1992suburban]

was lookin @ a 69 with an autostick.. but I past on it