jashell1562

iTrader: (2)

A quick question for you guys running a supercharger. What rear gear ratio are you running? I know the turbo guys Like running higher gears like 3.08 and 3.23's . But I don't think the same principals apply to the supercharged cars do they. Let me know what gear you guys are running I am setting up my rear and going to order me a gear Asap. Its a 72 Nova with a T56...Running a LS motor 6.0. head and cam car with a F1A.

'Trust'

iTrader: (24)

That really depends on what your car is going to be doing. 1/4 mile? What do you expect to MPH? How tall of a tire?

underpressureWs6

iTrader: (17)

ive got the 3:50 gears in my 9-inch with a d1sc and love them!

jashell1562

iTrader: (2)

Its a street strip car..I had a 4.10 in it but was going to go to a 3.42. I have a 26" tall tire on it now

Pro Stock John

iTrader: (34)

How fast do you think it will be?

I ran 3.50's in my Formula when I had a YSi Vortech setup, but some calcs showed that 3.73's would have been better. I went 9.40@144mph @ 3450 raceweight/ 18 psi/ 680rwhp/ shifting at 7000.

badass99ss

iTrader: (17)

I had 4:10's in my stock 10 bolt when I purchased it. I installed a Midwest fab 9" and went to a 3:89. Absolutely hated it, car felt like a dog out of the hole and I lost some boost(~3psi). Went back to a 4:11 and am loving life again.

Troy

blue00ZZleeper

iTrader: (5)

I'm looking at getting a 9in from EPP within the next couple days and was looking at 3.70's?...I dont know about your car but I drive mine on the street a lot so I figured that would be good through a M6...input?

dschmittie1

iTrader: (64)

I am loving my 3.70s in my Fab9 with my prochraged 347

tomz28

iTrader: (20)

id go with 3.73

I_Need_Land

iTrader: (12)

i run 4.30's. d1sc, 6spd currently 26" tire, plans for a 28"....

LS1RedZ

iTrader: (19)

I went from 4:10s to 3:73s and love it now. Car was running out of gear with a 28" tire on the 4:10s. Put down 683rwhp @11 psi. I say go with 3:73s if you plan on putting down alot of power. I blow the tires off through 3rd and into 4th on the street.

'Trust'

iTrader: (24)

Do you plan on running it a the track on a 26" tire? What does it weigh and how much RWHP do you expect?

helicoil

iTrader: (104)

3.70's/4l60E with a 3500 converter and a 27" tall tire puts me through the traps at 6000 RPM in 3rd. 610RWHP at 9psi with a D1SC

408>>98transam

i have a 408 ta with all bolt ons including a d1sc with 12 psi i run a rpm level 4 6 speed with 373s and a 26 in tall tire i went through the traps at 6500 and my trap speed is 133 ish i changed to a 28 in tall tire and i go through the traps at about 6000 to 6100 and i trap 133 to 134 !!! i like the 373s imo

BLNLS1/RX7

iTrader: (2)

My 408 with 12lbs.of boost from the D1sc and a turbo 400 uses a 3:55 gear and works fine.

DanZ28

iTrader: (5)

I'm running a 3.40 gear, track only car. Comes down to what RPM you want to cross the lights at and there are a number of good calculators out there to find what gear you need. 3.73-4.10's seem like a proper gear though for street/strip.

SR-71 SS

iTrader: (2)

3.75 in my strange S60. 6 speed street car, D1 about 600rwhp

cablebandit

iTrader: (37)

3.7x gear