Quote:
Originally Posted by mentepazza
I do use 185/70/14. Chinese make. Surprisingly good. Found them in when I bought the car and still doing a great job.
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5,7% smaller diameter, and 6,0% increase of rpm. Changing the differential gear would make a smaller difference!
If one changed a 3,54 diff to 3,73 , the rpm on the driveshaft would increase with 5,3%.
Go from 3,73 diff to 3,91 , increases rpm on driveshaft with 4,9%.
From 3,91 to 4,1 , also 4,9%.
I don't think it's a good idea if one care about engine wear, noise, and fuel consumption, at highway speeds.