Quote:
Originally Posted by freebeard
So where does one start then?
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Just exactly like with any other car modifications. You measure what you have, then develop changes from those starting points and then assess the result.
If you're modifying the engine management, you don't apply some rule of thumb to altering ignition timing and air/fuel ratios - you measure what you have, make changes from those starting points and then assess the result.
If you're modifying car suspension, you don't apply some rule of thumb - you measure what you have, make changes from those starting points and then assess the result.
With car aero it's in fact easier than most car modifications, because making trial changes can be made cheaply and easily and then assessed.