Need clarification on gear swap!

[tjames2014]

3.91 a6 for me . I added the vtc this weekend on sport mode 6 u feel the difference ,sports mode 9 omg hold on neck snapping action. A whole new beast

[SS PANTHER]

I went with the LPE 3.70's made by AAM. The 3.73's, I believe, are Richmond and are not the same quality as the AAM. AAM is what comes in all the factory Camaros. I went with 3.70's as I went with a lower profile 285-35-20
tire, which, translates to a 3.81 ratio. Also, I might do F.I. in the future. The rpm is ~2150 at 70mph and I lost about 1.5mpg at highway speeds. Very happy with my gear selection. Good luck with yours.

[jergarr]

Originally Posted by rontammy0

Did you track it before your 12.4 et. I'm wondering how the 391s will help my et and 60ft. Thanks

I don't remember the 60ft but I ran a 13.08 1/4 mile with just headers, intake, tune and stock tire. I also had 18 in nt05r's on in the rear when I ran the 12.4 with the 3.91 gears.

[rontammy0]

Originally Posted by jergarr

I don't remember the 60ft but I ran a 13.08 1/4 mile with just headers, intake, tune and stock tire. I also had 18 in nt05r's on in the rear when I ran the 12.4 with the 3.91 gears.

Almost 7 tenths from Dr and gears. I'm thinking maybe what 3 or 4 tenths from the Dr and maybe the rest from gears....hard to say....thanks for the response.