Fbodyjunkie06

iTrader: (10)

It will have a 3.27 rear gear also. With the right tune-up and the right cam it should hit full boost by 4000-4500rpm max. I'd think with a 6.0 it'd be several hundred rpm less.

Full boost will be between 13-15psi.

Cam timing is critical in a turbo set-up. Mainly evo.

Hank Peabody

iTrader: (2)

It would spool faster with an 83mm turbine vs that 96mm turbine and make the same power if you're only planning on 15psi no matter what the EVO is. Quick spool at the cost of a little top end power is usually worth it on a relatively low hp mostly street car (600-700whp) but in that case, 15psi on a 5.3, it doesn't require that much turbine anyway.

Fbodyjunkie06

iTrader: (10)

You're correct, but the owner wants to run the stock bottom end with as much boost as he can which will probably be around 15psi. Once that goes, he will forge it and max the turbo out.

May as well buy once.

I do agree with you that with a smaller cam the 83mm would spool the same or faster, but I know with the right cam the 96mm will act exactly the same. You're introducing the same amount of exhaust gas into the 83mm turbine with a smaller cam as you are with a bigger cam with proper evo and a 96mm turbine.

stangs400

iTrader: (5)

The only reason im on the fence is the cost between the two. Im on work leave due to a foot injury and dont have money coming in for quite some time, and an extra 400.00 at this point for a little bigger turbo seems like a lot... But if u think itll be worth it to wait a bit and save up for the bigger turbo then ill go that route. Otherwise im gonna go with the cheap and smaller ebay turbo. But the more and more i think about it, its way smarter to do it right the first time. But since im also on the stock bottom end, i wont be boosting past 14 psi..if this is the case, would that ebay gt45 be more than capable with a max boost of 14psi?

Fbodyjunkie06

iTrader: (10)

Yes it would, just comes down to how much you want to change and how you want to do it the first time.

In the end it is your car and your decision.

turbocamaro125

iTrader: (3)

I built 2 f bodies for my buddies
4.8 ls9 cam s472 83wheel 1.10 t6 t56 1psi by 2600 full spool by 3200 10psi for now

Ls1 383 blower cam s480 96mm wheel 1.32 t6 t56 makes 1 psi at 2350rpm and full spool 15psi by 3500 for now need more meth...

You can easily make the 1.32 96 wheel work but most people wanna pull stumps (full spool 1000rpms)

Fbodyjunkie06

iTrader: (10)

And I bet that blower cam has a lot more exhaust duration and a tighter lsa than what one would normally "think" is right for a turbo car.

But when we are trying to spool a bigger hotside that tighter lsa and more exhaust duration is needed.

Cammin02ss

iTrader: (4)

I have a S400-HP88 for sale.. It would work great!

turbocamaro125

iTrader: (3)

235/240 598/608

Fbodyjunkie06

iTrader: (10)

What is the LSA and what icl is it installed in?

I like that split if the lsa and icl are right for it.

turbocamaro125

iTrader: (3)

115lsa installed at +2...I think it's been awhile

Fbodyjunkie06

iTrader: (10)

Nice. Sounds like it does the job.

turbocamaro125

iTrader: (3)

would that cam do the job for my setup

370ci
317's
bep 91 compR F trim 1.0
pro flow xt
3000 stall
4l80
8.8 w/3.27

or what would you have?

T76s10

iTrader: (6)

I agree with fbodyjunkie. If you have a spool valve, why not use the t6? Do the 1.10ar as stated earlier and a good cam and i think you will be just fine.

HRHohio

Any updates on this?