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Re: Going from 4.10 to 4.30 how much RPM
[Re: polyspheric]
#795890
09/09/10 02:03 AM
09/09/10 02:03 AM
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Joined: Jan 2003
Posts: 6,591
Canton, Ohio
Sport440
master
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master
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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Quote:
Going from 4.10 to 4.30 how much RPM?
Really? Need a calculator?
The answer is still the same as it was the last 500 times: new ratio ÷ old ratio. In this case 4.88%, for 6,600 it's 322 RPM.
The are almost no relationships in cars that are anything but a direct comparison just like that (and most people get the others wrong anyway).
Im missing some of your math,
the 322 RPM is right.
the 4.88% is right
but the new ratio/ by the old = 1.0487804878
Okay, I see the .0487804878 part in the equation,
So if you lose the 1. move the decimal two points I see the 4.878 But thats not the way to get to 4.88%
How does one divide the new ratio from the old without a calc. mike  At 1.01 am and  Im a  head, mike 
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