Help Me Choose A Turbo

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Sep 17, 2006 | 01:11 AM

XpEdItIoUs

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Help Me Choose A Turbo

Ok heres the deal, I have a phamspeed tubular kit with a t4 flange. Right now I have stock cubes untill I get my 408, what size turbo should i get for my upcoming 408 remember it's a t4 flange. I was thinking of the pt88 but the exhaust housing seems small for a 408 especially with a t4 flange. How will this turbo perform on the stock ls1 and the 408 as in spool time, backpressure, peak power, & torque?

Sep 17, 2006 | 01:57 AM

Quick1998Z28

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From: Iranndia

I'd either wait for the 408 or run something smaller like a Turbonetics 62-1 on stock cubes and sell it/trade it for pt88 later on

Sep 17, 2006 | 01:46 PM

XpEdItIoUs

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I need some info on this.

Sep 17, 2006 | 01:47 PM

XpEdItIoUs

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I don't want to buy something that I know I will have to sell later.

Sep 17, 2006 | 01:52 PM

Smearin

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Psj is going to be running an 88 on his 346.... I think thats alot of turbo for that motor... using a t4.. arent you going to be running alot of backpressure?

What size A/R are you going to be running? for a stock 346... run a 70 for now.. its a perfect street turbo... since you're on a stock motor i wouldnt push it..

Sep 17, 2006 | 03:12 PM

XpEdItIoUs

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Quote:

Originally Posted by Smearin

For the 408 it will be alot of backpressure I think. The specs on the exhaust housing are T4/.96A/R, I think this turbo will do better on the 346...What do you think?

Sep 17, 2006 | 04:08 PM

Smearin

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Good a/r for the turbo.... but on a stock bottom end.. NO way.. turbo is way to big.. it will take a while to spool that bad boy up.. I suggest down sizing turbo

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Sep 17, 2006 | 05:43 PM

XpEdItIoUs

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From: Phoenix, AZ

John, what are your engine/Turbo specs i know your going with a 88mm T6. What rpm range do you expect it to kick in?

Sep 17, 2006 | 06:54 PM

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DrTurbo

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If you want to know which turbo to use.....speak to Jose. Alot of the big tuners call him for what to use. I don't think a 408 and PT88 is a bad idea....of course it just depends on the goals.