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

Question on adding Twin Turbo.

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Old Nov 13, 2001 | 05:46 PM
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From: Griffin GA
Default Question on adding Twin Turbo.

Has any one added a twin turbo to a L-98. What prep is involved, where to get the parts. Other than Callaway.
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Old Nov 13, 2001 | 07:47 PM
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Default Re: Question on adding Twin Turbo. (dppeaden)

you dont add twin turbos, the b2k callaway vettes had very different internals.
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Old Nov 13, 2001 | 08:25 PM
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Default Re: Question on adding Twin Turbo. (Snackdragons)

Woudn't it be more effecient to add a single turbo? Theres a guy around here that will put a turbo on anything. Recently he used two turbos off of a T-bird and plumbed them in on a 383....resting in a 68-69 ss camaro. He says it will do 12's. I've seen pictures of turbo setups on L98's (on this forum) but the cost and labor is insane. You could easily build a bigger cubed small block that can make the same power as a turbo setup on a stock L98. And I would bet that the N/A small block would be more reliable!
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Old Nov 13, 2001 | 09:08 PM
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Default Re: Question on adding Twin Turbo. (AS84)

More cubes.... and a super charge :) .. I don't like turbo's on these big cube engines.
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Old Nov 13, 2001 | 09:32 PM
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Default Re: Question on adding Twin Turbo. (Glock'94)

More cubes.... and a super charge :) .. I don't like turbo's on these big cube engines.
And why is that??? :blueangel:

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Old Nov 13, 2001 | 09:42 PM
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From: Griffin GA
Default Re: Question on adding Twin Turbo. (Snackdragons)

you dont add twin turbos, the b2k callaway vettes had very different internals.
That is not what I asked. I will try and make this simple. Has any one added an AFTERMARKET Twin turbo or a turbo to a L98. I also said other than Callaway.
Callaway sell TT Aftermarket conversions http://www.callawaycars.com/From_home/NewProducts.htm
But only on 92 and newer. Cost lots of $$$$$.

Life is Hard, Its harder when you'r Stupid.



[Modified by dppeaden, 8:03 PM 11/13/2001]
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Old Nov 13, 2001 | 09:43 PM
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Default Re: Question on adding Twin Turbo. (dppeaden)

How fast were the Callaway's anyway?

I'm looking for some real feedback here. There's a couple people think that I'm insane because I showed taillights to a Callaway running 12.7's??

Cook Performance in the NYC does any turbo plumbing you can imagine.

Plan on getting an aftermarket ECM system or auxillary fuel enrichment system at the same time... turbos are one thing. Tuning the package to work is entirely another.
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Old Nov 13, 2001 | 09:49 PM
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Default Re: Question on adding Twin Turbo. (dppeaden)

There is no parts out there.

You would have to do one of the following.

1. call callaway and see if they would sell you some parts, then get over what price they give you for just the parts.

2. Fab up some stuff on your own

3. pay someone to fab up some stuff for you.

4. Sell your car and find a callaway to buy.

There is this one guy that did it, http://www.geocities.com/jerrysturbovette/home.html , If you check out the specs you will see he thanks turbo specialties for the turbos, if I remember correctly they did the exhuast manifolds as well. Maybe they can hook you up. (given you like that set up)
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Old Nov 13, 2001 | 10:39 PM
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Default Re: Question on adding Twin Turbo. (dppeaden)

you dont add twin turbos, the b2k callaway vettes had very different internals.


That is not what I asked. I will try and make this simple. Has any one added an AFTERMARKET Twin turbo or a turbo to a L98. I also said other than Callaway.
Callaway sell TT Aftermarket conversions http://www.callawaycars.com/From_home/NewProducts.htm
But only on 92 and newer. Cost lots of $$$$$.

Life is Hard, Its harder when you'r Stupid.

[Modified by dppeaden, 8:03 PM 11/13/2001]
I don't want to step on anyones toes.,. but I think Snackdragons just meant the stock bottom end of your motor may not hold up to the boost of twin turbos
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Old Nov 13, 2001 | 10:47 PM
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Default Re: Question on adding Twin Turbo. (-=Jeff=-)

Jeff,

Your Right, I'm just in an pissy mood. Just looking for a fight.
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Old Nov 13, 2001 | 11:26 PM
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Default Re: Question on adding Twin Turbo. (dppeaden)

Dwain, Callaway doesn't do a twinturbo on the 92 and later LT1s. They bore and stroke to a 383 with top quality parts and call them supernatural because they are NA. :cool:
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Old Nov 13, 2001 | 11:49 PM
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Default Re: Question on adding Twin Turbo. (bill mcdonald)

More cubes.... and a super charge :) .. I don't like turbo's on these big cube engines.

And why is that??? :blueangel:
I'm interested in knowing myself. I'd rather have steady boost from 3k to whateverk than constantly building boost.
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Old Nov 14, 2001 | 12:15 AM
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Default Re: Question on adding Twin Turbo. (PylonBoy)

More cubes.... and a super charge :) .. I don't like turbo's on these big cube engines.
And why is that??? :blueangel:
I'm interested in knowing myself. I'd rather have steady boost from 3k to whateverk than constantly building boost.
The turbo is becoming far more effecient that a supercharger. Doesn't a supercharger rob about 30% of your power whereas a turbo is nothing but a solid power adder? I'd love to do a turbo, but in my opinion making more cubes is more practical.
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Old Nov 14, 2001 | 12:16 AM
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Default Re: Question on adding Twin Turbo. (Ramrod92)

Dwain, Callaway doesn't do a twinturbo on the 92 and later LT1s. They bore and stroke to a 383 with top quality parts and call them supernatural because they are NA. :cool:
It was the 383 page My mistake on the page. I'll call in the morning for more info.
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Old Nov 14, 2001 | 12:24 AM
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Default Re: Question on adding Twin Turbo. (dppeaden)

bill here is the updated page on jerrys turbo vette
http://www.meacham.pointclark.net
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Old Nov 14, 2001 | 12:47 AM
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Default Re: Question on adding Twin Turbo. (meach13)

I checked out the turbo vette page. Impressive indeed! One question? How long do you think it takes to change the plugs?
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Old Nov 14, 2001 | 12:52 AM
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Default Re: Question on adding Twin Turbo. (EricVonHa)

one good thing about a good tune on the tec II is that it does not need to have the plugs changed much
takes him a few hours
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Old Nov 14, 2001 | 04:11 AM
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Default Re: Question on adding Twin Turbo. (dppeaden)

Check with precision Turbo & Engine. These guys are masters at turbocharging. Web address: http://www.precisionte.com
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