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Old 04-20-2019, 01:11 PM
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Cobra Make, Engine: Shelby CSX4005LA, Roush 427IR
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Quote:
Originally Posted by MKS427 View Post
3.55? 3.73?
Personal choice dependent upon tire size and trans gearing (.82 vs .64 OD), where cruising RPM should be tolerable to you.
You should be able to find a speed calculator online. Typically, you will need to know revolutions per mile for the tires.
What the discussion about transmission and rear end is really about is summarized as "it's not necessarily how much horsepower you have but how effectively you transfer it to the ground". The stuff behind the engine is just as important as the engine itself, and all need to be properly balanced. It does no good if when you step on the accelerator your wheels just spin on the pavement, which is what most "horsepower additions" yield.
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