hp/tq/ and 1/4 with a 76mm/78mm turbo

[masterfab]

There's a couple 12 bolt f body's putting way over 600 up to the wheels here in flint. No issues. I mean there not not bullit proof. But Im sure you have reason for your opinion.

If you got a deal on a 9inch then I completely understand, gives you room to grow.

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[Formula Z]

Got a great deal on a moser 9". I dont think my stock 10 bolt w 3.73s is up to the task

25-2700 rpms still seem high with 3.50s. I guess if you guys think 3.50s will be better stoplight to stoplight, im good. If it will help build the boost and still be hghwy friendly im all for it

[1BADAIR]

12 bolt f-body axles are junk...

[masterfab]

What gear ratio for a 9" would be ideal? Thinking a non lockup converter so was thinking 3.0 or 3.10s. Which brand without breaking the bank? Thanks

Are you going to go over 800rwhp, if not why a 9 inch?
You will loose less power to the wheel with a 12 bolt.

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[Sleeper]

All depends on what RPM you trap the 1/4 in.

[DETROITMUSCLE]

http://www.f-body.org/gears/

3.50 gearset
26" tire
4l80E

75-80 approximately 25-2700rpms just depends on your converter slippage, but factoring in 5% is usually a good estimate.

[kammi10]

you really wont know until you get them in there.. but seriously put 3.50's in it and dont think twice just trust me.

[Formula Z]

What do you think the rpms will be at on frwy doing 75-80??

[DETROITMUSCLE]

you really don't need a lot of rpm I doubt a stock 5.3 will make power above 6K with a turbo, that being said even though you don't have lockup you still have 4th gear so 3.50 would be fine for cruising around IMO.

[Formula Z]

Lol 6500? Was under the impression I dont need rpm with boost

[c0ncEpT]

Who only turns the motor to 6000rpm... This isnt an LT1!

[kammi10]

Thinking mpg without lockup? Still good?

i pulled down 18-20 and my build is much more radical then yours and i dont have overdrive

[Formula Z]

Thinking mpg without lockup? Still good?

[kammi10]

mike i run a 3.50 gear.. it will be plenty fine for you..

[Formula Z]

So 3.25 to 3.40 seems like where I wanna be. This will still help bring on the boost