I just have plain ol' 13's on my car, and my engine rev's at about 3000 when I'm going 70-75MPH on the highway.
What RPM's are you guys with 15's, 16's, or 17's getting for the same speeds?
I have an 87LX (carbed).
I'll probably be doing more highway and less city driving in the future, and I've been thinking about getting bigger rims just to give myself better highway cruising.
Right now I'm getting like 37mpg going through a full tank when driving from NY to Chicago on I80.,
Do you think I'd get even a little better if I had bigger rims since my rpm's would be lower?
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