What rear gear with lsa supercharger
 

What rear gear are you guys running with a lsa supercharger I have a 4l80 Transmission was looking at either 4.10 or 3.73

unless you do a lot of highway cruising definitely 4.10 with the 80e.

Ok cool thanks for the response

+1. Depending on tire size, you may want deeper too. What size tire?

With a 3.73 and a 6200ish RPM shift point youre looking at about a 60 MPH first gear. Thats damn long...

i have 32.4" tall tires

4.56's at least! I have 4.88's with 35's, that are more like 34.5's. I'm at 2450 ish at 70 mph. 4l80E also.

4.10 at the very least with a tire like that!

but i also hay 30" when its time to play my truck is lowered 2/4 drop on 24's for cruising and got 17/15 in play mode

4.10 with a 30" track tire will work beautifully.

Hardcore racers will argue its still not enough gear as you wont make full use of 3rd gear by the end of the 1/4 mile.