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Chipped Input Gear - Can I Still Use It?


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#16 ACDodd

ACDodd

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Posted 07 November 2018 - 05:37 PM

Yes the compression ratio is likely too high.

Ok so you have the 28tooth input gear and a 30tooth primary. This gives an overdrive ratio of 0.93333:1. Your 3.105:1 FD effectively becomes 0.93333 X 3.105 = 2.898:1.

This is probably higher that what you were expecting. It also demonstrates thats it's important to know what exact parts are fitted to your engine in order to make a successful build.

Ac




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