Quote:
Originally Posted by Blue Bomber Man
Because only about 20% of a vehicles energy actually makes it to the wheels at highway speeds a lower RRC is still more valuable than improved gearing.
A 10% increase (in efficiency) at the engine only results in a 2% mpg gain.
However, like I said, the best tire I've seen so far is in fact a 14" wheel, so you would do well to work with that if you car's rims can take it, and then modifiy your transmission or final gear to gain any engine efficiencies through rpms
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wow so u know the 14 inch out performs the 13 or 12. even if the engine effiencies are taken OUT of the equation thru gearing. (please, why are u going on a gearing tangent, the idea is the engine will be turning the same.) I thought u just said that aero was more important than LRR at speeds over 20 mph. Plus as right of right now i dont know the LRR of the 12 or 13.