C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

what turbo's

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Old Nov 17, 2004 | 04:32 AM
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Default what turbo's

l am planing to set a twin turbo system on my car , over the next twelve month or so, l have been look at turbo's for sale on ebay and never realized that there is so many different types.

So l was wondering what different people have used on there cars?

What size is recomended?

The engine will be a after market set up more than likely a 383 with all the good gear of course it will be a twin turbo set up , would these be suitable HKS GT2530 Twin Turbos, GREDDY APEXI NISMO GARRETT on ebay for $2600 brand new.

Any help or addvice would be most helpful thanks.

Later Getsom

Last edited by Getsom; Nov 17, 2004 at 04:38 AM.
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Old Nov 17, 2004 | 07:44 AM
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the Garrett GT series are very good turbos. the ball bearings enable quicker spool up and reduced lag. also the design is much better than the older T series turbos and enables larger turbo to operate effectivly at lower boost levels. the GT28s may be a little small on the exhaust side for a 383 (as they can be on a 2.0ltr EVO engine) butare good for about 450bhp each. i would go for the larger GT30R as the larger hot side shouldnt be as much of a restriction. one of these things can turn out well over 500bhp and run very well at lower boost (around 1 bar). but with either i think you will be having some fun.

Keep us posted, thanks Chris.
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Old Nov 17, 2004 | 05:56 PM
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I too am planning a twin turbo winter project. I have acquired two T3s, 60 A/R 60 trim compressor and 82 A/R stage one turbine. I started out with a 63 A/R turbine before I realized there was a bigger size available.

Last edited by Fatt Vette; Nov 17, 2004 at 05:57 PM. Reason: spelling
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