bcbosley

iTrader: (2)

Im putting together my 408 ci. I will be running a s480 turbo, with t56 magnum and 9 inch rear. Looking to make 800 rwhp if I can. Need a recommended gear. I was thinking 3.50's but I just not sure with it being manual and big turbo. Any help will be greatly appreciated.

ssvert99

iTrader: (26)

Most of the people I have dealt with in similar combos have run the 3.25 or 3.50 gears. Really depends on your tire size/type and engine RPM range.

Give me a call when you're ready for the 9" rear. I have the best prices and expert knowledge on any rearend combo you want!

Blackpanther99

iTrader: (8)

Are you looking for a gear ratio for mostly track use? Street use?

bcbosley

iTrader: (2)

It will pretty much be a track car even with the manual trans . I will drive it on the street some.

1981TA

iTrader: (7)

I started with 3.73s in mine for Road race, and was recommended to go with 3.42s to reduce the amount of gear shifting needed. I'm switching rear ends this weekend. Drag race needs may be different tho.

murphinator

iTrader: (2)

Turbo cars don't typically need much gear...

When you say mostly track car do you mean 1/4 mile , 1/8 mile , road course ,etc... They will all have different needs.

If drag race - figure what you expect the car to be trapping and figure which ratio puts you at the top of 4th as you go through the traps on the tire rollout/height you expect to be running on the rear leaving a margin for error that you can make final adjustments to with rear tire height if need be to dial it in.