Is this a v6 Turbo ZR-1 Prototype Engine? Friend purchased it (pics) ---

[scottfab]

Originally Posted by LGAFF

Interesting the ConsumerGuide published in 12/88 mentioned the turbo 6 was a test engine for the ZR-1; as stated too rough

That must mean it WAS considered for the ZR-1.

[1989ZR1#74]

Originally Posted by scottfab

That must mean it WAS considered for the ZR-1.

I am pretty sure the ZR-1 was always LT5 powered from day 1. This may or may not have been a "study" for the Corvette but not a ZR-1. The ZR-1 was an "option and Marketing group" that group included the LT-5 like the Z28 camaro's had 302s. You couldn't get a Z28 with a 396.

If it is a Corvette powertrain it could be related to the program that build EX5273 in 1988. EX5273 was a twin turbo V8 concept study. It sold at BJ2009 Palm Beach:

http://www.barrett-jackson.com/appli...s.aspx?ln=57.1

[alwayscode390]

I thought I read somewhere that the turbo v6 was an option ... when they were shooting for 400hp ... but people really took it hard that it wasn't a v8 for the "top of the line" Corvette (zr-1) , so that's another reason it was squashed ? ---

[ZZZZZR1]

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

Great find!!!!



David

[LGAFF]

This is the prototype Corvette turbo 6....Callaway just posted a pic of it in the car on Facebook

[J-Bonez]

It maybe the engine they put in the transam....v-6 turbo i believe it was late 80's

[alwayscode390]

I did hear about a 3rd gen Camaro turbo 6 concept also ---

[Schrade]

Originally Posted by alwayscode390

I did hear about a 3rd gen Camaro turbo 6 concept also ---

And a C3 turbo V-6...

[Hib Halverson]

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.

[LGAFF]

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.