Wheel and tire change, any FE improvement here?

[90crxHF]

Originally Posted by Mifunego

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.

All I can say is, getting good MPG is cool, but I have since put my RPF1's back on with brand new 205/50 Nitto NeoGen's, and I have been having fun again on my commutes. The 14" wheels I was running was mainly to just get me by until I could by tires again. I bought the 14" wheels and tires for $80, and I used them for a couple of months. My Toyo's were getting scarey in the rain.

I have yet to check my MPG again really with these new NeoGen's. I have checked once, and even with a lot of playing around (not trying to get MPG at all) the car still get's 38-39 MPG. This is at like 32 - 34 psi. So, with trying to get MPG and pumping the tires up, I'm sure I can get the same as I did with the 14's.

Oh and BTW, if you get the RPF1's, you'll love them. They are one of the strongest wheels for the weight you can buy.