Indiana Open Wheel - Gearing ??

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DAVE BOOS

6/17/14 9:34 AM

Gearing ??

So is running an 08 R1 in 3rd gear with a 13 tooth engine gear the same final ratio as running it in 2nd gear with a 14 tooth engine gear? Axle gear at a 49 tooth staying the same with both combos. Thanks in advance!

Bill84

6/17/14 10:31 AM

Re: Gearing ??

No. 14 x 49 in 2nd gear nets you a 10.92 ratio. 13 x 49 in 3rd gear is 10.04. If you used 13 x 53 in 3rd, you would be real close at 10.86.

Hyper and Guhl both have downloadable gear charts for this motor, if you don't have one.

http://www.hyperracing.com/Assets/fi...04-11%20R1.pdf

Bill

DAVE BOOS

6/17/14 7:40 PM

Re: Gearing ??

Thanks a bunch Bill! That explains why rpm was low last sat. night. Dave

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