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Old 01-25-2013   #11
ZZZZZR1
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Default Re: Is this a v6 Turbo ZR-1 Prototype Engine? Friend purchased it (pics) ---

Looks like a camaro engine block? 1987 fits in with a potential turbo upgrade??

Great find!!!!



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Old 01-25-2013   #12
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Default Re: Is this a v6 Turbo ZR-1 Prototype Engine? Friend purchased it (pics) ---

I did hear about a 3rd gen Camaro turbo 6 concept also ---
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Old 01-25-2013   #13
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Default Re: Is this a v6 Turbo ZR-1 Prototype Engine? Friend purchased it (pics) ---

Cool looking setup for sure. I wonder if the V6 +turbo + I/C + plumbing would be close to the weight of an L98 or the ehavier LT5?

Could V8 manifolds be swapped out to be used in a V8 application?

It would be interesting to get a readout of that PROM.

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Old 01-25-2013   #14
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Default Re: Is this a v6 Turbo ZR-1 Prototype Engine? Friend purchased it (pics) ---

The flange on the headers is what 0.750 in ? wow
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Old 01-25-2013   #15
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Default Re: Is this a v6 Turbo ZR-1 Prototype Engine? Friend purchased it (pics) ---

Quote:
Originally Posted by alwayscode390 View Post
I did hear about a 3rd gen Camaro turbo 6 concept also ---
And a C3 turbo V-6...
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Old 01-26-2013   #16
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Default Re: Is this a v6 Turbo ZR-1 Prototype Engine? Friend purchased it (pics) ---

A turbocharged V6 was never, ever considered as power for the ZR-1.

Way back in late 85, when what would become the ZR-1 was still in the early design stage, GM briefly considered a DOHC cylinder head conversion for the existing Gen 1 SBV8, but that's the only other engine configuration which was considered.

That said, keep in mind that before the idea of a Corvette worthy of the term "world-class sports car" (ie: more than just a "bigger" engine but a complete package of powertrain, chassis and brakes), in late-84/early-85, GM was looking for an engine capable of more more than 230-hp, a twin-turbo V6 was tested and quickly rejected.
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Last edited by Hib Halverson; 04-20-2014 at 02:04 PM. Reason: elaboration
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Old 01-26-2013   #17
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Default Re: Is this a v6 Turbo ZR-1 Prototype Engine? Friend purchased it (pics) ---

SVI did a prototype TT Corvette(v8) in 85 or 86. GM used this prototype to work with Callaway in putting the TT into production.
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Old 01-26-2013   #18
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Default Re: Is this a v6 Turbo ZR-1 Prototype Engine? Friend purchased it (pics) ---

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Old 02-05-2013   #19
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Default Re: Is this a v6 Turbo ZR-1 Prototype Engine? Friend purchased it (pics) ---

Quote:
Originally Posted by Hib Halverson View Post
A turbocharged V6 was never, ever considered as power for the ZR-1.

Way back in 85, when what would become the ZR-1 was still in the early design stage, GM briefly considered a DOHC cylinder head conversion for the existing Gen 1 SBV8, but that's the only other engine configuration which was considered.
The Original contract negociations with Lotus was for just this.

Graham.
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Old 02-06-2013   #20
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Default Re: Is this a v6 Turbo ZR-1 Prototype Engine? Friend purchased it (pics) ---

Before landing on the LT-5 vs a TT setup, GM did build a series of TT cars....Motor trend noted that they ran a test with a Lambo running at 120, as it passed one of the TT prototypes(sitting still) ...Jim Engles punched it....at the end of the mile the TT vette has passed the lambo at 180+....
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