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Discussion Starter #1
on the "Read SPEED at TIRE DIAMETER" part of the calculator, is the speed read supposed to be your speed at the end of the 1/4, or is it just your speed at the set RPM? instructions are: pull slide to set engine RPM at gear ratio. Read speed at tire diameter. dosnt say if its for est 1/4 or not. my guess is its speed at your RPM only, and up to user to figure the rest.

thx guys,
Mark

 

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It is speed at RPM only...The one thing it does not take into consideration is converter slippage if you are running a automatic trans. It does not consider overdrive either.

Hope this helps
 
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