Howard Jones
Supporter
No they are not boosted. I think the 4.0 to 3.0 ratio is a pretty good one. If you can exchange the 1.62 for 1.75 I would do that. If not, you can use the 1.62 fronts and the 1.38s in the rear that you have, I think you will be pretty close.
If you are using street tires on the same wheel all the way around instead of wider wheels in the rear with wider tires then you might start with the rears that you have on the car for now with the 1.62s in front.
Check out the flexing mount thing first for sure and fix that if you have to. Also be sure your master is good.
After that I going to be a trial and error thing. The P valve will help if the rear are a little over biased.
If you are using street tires on the same wheel all the way around instead of wider wheels in the rear with wider tires then you might start with the rears that you have on the car for now with the 1.62s in front.
Check out the flexing mount thing first for sure and fix that if you have to. Also be sure your master is good.
After that I going to be a trial and error thing. The P valve will help if the rear are a little over biased.