Opinions please....

[bluenotch]

oh I see. I hate moveing hah. well good luck with your news house hope everything goes as planned

[SonofaBish]

oh I see. I hate moveing hah. well good luck with your news house hope everything goes as planned

Thanks... i'm hoping it goes fine... the better it goes, the sooner i can get the car out and make it to some late-summer meets...

[SonofaBish]

I'm so glad you got it back!! If I were you i would get 3.5x any more will be too much. You need Somthing smaller for those turbos to spool!

yea, that was the reason i wanted the 3.08's... originally i wanted a 3.23, but for a GM 12 bolt with a 4 series scarrier, it was either 3.52 or 3.08, and for some crazy reason i chose the 3.08... i'm hoping that over the winter i can get new gears installed

[Stangman701]

yea, that was the reason i wanted the 3.08's... originally i wanted a 3.23, but for a GM 12 bolt with a 4 series scarrier, it was either 3.52 or 3.08, and for some crazy reason i chose the 3.08... i'm hoping that over the winter i can get new gears installed

Wow, there's no option in between 3.08 and 3.52? I definitely wouldn't go higher than 3.52 because it might cause you to shift into 5th if you ever take it to the track. Not sure what your shift points are, but 6000 RPM in 4th with the tires you have now would be 132 MPH. I'd imagine that car will trap a little higher than that. 6500 would be 142 though so that would probably be ok.

[SonofaBish]

Wow, there's no option in between 3.08 and 3.52? I definitely wouldn't go higher than 3.52 because it might cause you to shift into 5th if you ever take it to the track. Not sure what your shift points are, but 6000 RPM in 4th with the tires you have now would be 132 MPH. I'd imagine that car will trap a little higher than that. 6500 would be 142 though so that would probably be ok.

Yea, at the time i got the gears, that was all that was available, and i think that's still the case.... If i had a 3 series carrier in the car, then i'd have had the 3.23 option, but not with the 4 series...

(i might have the series' mixed up, but i do know that i can't what i wanted)... 3.52 would def. be the route i go... and it would also make the car a lot easier to drive... the 3.08's are a PITA when pulling out with a clutch that is made to hold so much power

[SonofaBish]

and as far as shift points go, i think i could def'n go to 6500 rpms... from my old dyno sheets, the car made peak TQ at 4500 rpms but still had 600 ft.lbs at 6K rpms... Peak HP was at about 5800 rpms, but still made 620rwhp at 6500rpms, so i think it could def'n shift there... that's pretty much right where Nate would let off on the dyno as well...

the cam in the car really isn't made to make power at super high rpms, so beyond 6500 would only find diminshing returns