Quote:
Originally Posted by 90crxHF
Okay guys, I'd like to report that I have now hit solidly in the 40's MPG wise... With this tire change I have now hit 41.35 MPG. This is running the tires mostly around 34 PSI. How much of a MPG improvement does pumping them up to say 40 or 44 PSI do? Would I see another 1 to 2 MPG? If so, I might try it and run my Illumina's on setting 1.
Oh BTW, I'm using the stock 2003 hub caps on the steel wheels. They seem pretty decent for aero, besides I waxed the crap out of them. I might eventually get the moon discs.
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I've been researching wheels lately, as I plan to replace my stock 18" boat anchors when the tires wear out (wheels are 24 lbs each, stock!) I've got my eye on the Enkei RPF1 also, since they are so light. Are you still running the steel wheels? Did you really see a mileage increase when you swapped out the 15" Enkeis? I see that the 15x7s are specced at a staggering mere 9.5 lbs each! That's amazing. The 18 x 7.5 RPF1s for my car run 17.6 lbs, and the 17 x 7.5 are only 15.2 lbs (big for you, but a huge unsprung weight diet for me). I also see you have one car for high mileage, and one for high speed
Unfortunately, living in the high-cost socialist city of Chicago makes it difficult for me to support too many cars (2 is enough for now), so my DD has to suffice as my track toy also - all the more reason for the RPF1s.