Quote:
Originally Posted by Hotrod_ace
* I would like to figure out the best Wheel size for fuel economy (14", 15" or 16") and get Moon Disks and LRR tires. I can't believe you run your tires at 60psi. What are they rated at on the sidewall?
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SentraSE-R did some pretty involved testing on different sizes and weights for his car. Search for it on the forum and you'll see. In general, larger wheels reduce RPMs, which is generally good for steady state driving--such as freeways. But lighter weight is better for P&G routines, where you repeatedly drag the weight up to a given speed. Remember too that rotational mass is different... the rule of thumb this forum has taught me is to double the weight to get a rough estimate of rotational mass. Try not to go for wider tires. Keep in mind that the tire diameter will effect overall diameter too.
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