I put 3.73's on my car one month after getting it, they made a nice difference on the street. I now run 4.30's and they made a nice difference at the strip.
I recently made a 500 mile round trip from St. Louis to Bowling Green to race in the NMRA event being held there.
I had 2 - 275/15/50 Nitto's in the back seat, a set of jack stands, a floor lift, various tools, big cooler complete with ice and beer (some food also) a duffle bag of clothes. I set my cruise control at 71 miles per hour for the entire trip and got 23 mpg.
If you are wanting to run alot at the track and stay n/a go with 4.30's, if you think you might want to hit it with a little nitrous don't exceed 4.10's. If you have no plans to race 3.73's leave you plenty of top end.
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True Blue 2002 GT Premium 4r70W
1/8 8.205@ 84.780
1/4 12.874@ 107.20
Bolt on's n/a
NMRA #7703
Dyno'd at Modular Depot 251 hp. 291 Tq.
4.30's, 3500 Stall converter, Steeda upper & Lowers, Tokico drag struts, M & M frame connectors, P & A valve body, C&L plenum, Accufab 75mm TB, Jet Hot Long tubes, Hooker O/R X, Steeda catback,SCT tune,Steeda pullies.
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