If I change the tire from 185-60-15 to 185-65-15, same width, but taller. The ratio would be 1:1.023. Before 3000rpm@60mph, 3250rpm@65mph. After change: 2930rpm@60mph, 3175rpm@65mph. 3000rpm@61.42mph. If VVTi changes timing @3100rpm, then I can drive @63.47mph rather than 62mph with better efficiency after the change. Am I right? Too bad, doesn't make much difference.
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Last edited by xbUser; 07-24-2008 at 03:00 PM..
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