Quote:
Originally Posted by beta
80mph is
stock - 3110 rpm
3.91 - 3350 rpm +240 rpm over stock
4.10 - 3520 rpm +410 rpm over stock +170 rpm over 3.91
wider tires (265/35 and 275/35) will add another 1.7-2.8% roughly +50 and +90 rpm.
Honestly 4.10 is not a huge change, the difference from 3.91 to 4.10 is a little more than half the difference from 3.62 to 3.91.
3.91 vs 4.10 is definitely a personal choice and will depend on the goal of your build. Most things in life are engineering trade-offs, tikamak brings up some great points  |
Yup. And like you said, tires bring in another set of variables. Never an easy decision if you think through these things is it? Agree that tikamak brings up good points, as did Gtfour.