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#21 | |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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#22 | |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Interesting the ConsumerGuide published in 12/88 mentioned the turbo 6 was a test engine for the ZR-1; as stated too rough
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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#23 |
Join Date: Dec 2012
Location: STL
Posts: 492
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[SIGPIC][/SIGPIC] 01' Dodge Viper GTS 11' Ford Raptor 90' ZR-1 Corvette LPE #699 |
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#24 |
![]() Join Date: Jan 2009
Location: Portland Oregon metro area (Washington side)
Posts: 3,207
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That must mean it WAS considered for the ZR-1.
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Scott ![]() Vett owner since 1979._It's about the car and the people |
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#25 |
![]() Join Date: Jan 2009
Location: Scottsdale, AZ
Posts: 700
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![]() 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 ![]()
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1989 ZR-1 #04 Pilot, Advertising/PR Campbell-Ewald S9YKH1 1989 ZR-1 #58 LT5 only 1989 ZR-1 #74 Unreleased Production / PR Dept 9PR110 NCRS #3,182 SACC #2,420 Member Corvette Museum Corvette Forum: "ewjxn" 2009, 2010 Gathering Attendee |
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#26 |
![]() Join Date: Jan 2009
Location: Scottsdale, AZ
Posts: 700
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OK I went digging. Per Dave MCcLellan's "Corvette fron the Inside" page 195:
"V-6S AND TWIN TURBOS To his credit, Lloyd kept the pressure on the engine guys. Their first response was a turbocharged 90-degree V-6 for the Corvette. They reasoned that the smaller displacement was needed, both for fuel economy and to accommodate the turbochargers and auxiliary plumbing. But we rejected the V-6 engine, and so did the car. The engine caused problems in the driveline and rear suspension and made the car buzz and the mirrors shake. This unbalanced V-6 engine configuration was totally unacceptable when mounted in the Corvette, which had never been designed for such an engine. So, the engine guys finally got the V-6 out of their system, and we settled down to work with them to package a twin turbo V-8." ![]() If that is the engine that is a very rare piece of Corvette history. Thanks for posting it.
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1989 ZR-1 #04 Pilot, Advertising/PR Campbell-Ewald S9YKH1 1989 ZR-1 #58 LT5 only 1989 ZR-1 #74 Unreleased Production / PR Dept 9PR110 NCRS #3,182 SACC #2,420 Member Corvette Museum Corvette Forum: "ewjxn" 2009, 2010 Gathering Attendee |
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#27 |
![]() Join Date: Jan 2009
Location: Scottsdale, AZ
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I will go one step further and say the name "ZR-1" didn't really exist until the 1988 time frame. Up until that point the LT5 moniker ruled the day. If you look at the 1988 and earlier build sheets you see LT5 hand written on them and King of Hill noted but no ZR-1 anywhere. ZR-1 really came to fame when Chevrolet denied the use of the LT-5 badging due to GM's own new restrictions on noting engine's badging on the outside of the vehicle. Hmmm does that make Queenie just another Corvette? I will let Tyler decide.
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1989 ZR-1 #04 Pilot, Advertising/PR Campbell-Ewald S9YKH1 1989 ZR-1 #58 LT5 only 1989 ZR-1 #74 Unreleased Production / PR Dept 9PR110 NCRS #3,182 SACC #2,420 Member Corvette Museum Corvette Forum: "ewjxn" 2009, 2010 Gathering Attendee |
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#28 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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This is the prototype Corvette turbo 6....Callaway just posted a pic of it in the car on Facebook
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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#29 |
Join Date: Jul 2013
Location: Mt.Bethel Pa.
Posts: 73
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Saw one a many years ago at Watkins Glen,it was in a prototype road racer.I think it was around 90-91.It caught my eye because I had just bought my first gmc syclone new.
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1990 Zr-1 #361 1991 GMC Syclone (built) 1993 GMC Typhoon (stock) 1993 GMC Typhoon (street) 1992 GMC Sonoma GT 1928 Model A pick up |
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#30 |
Join Date: Dec 2007
Location: Fremont,Ca
Posts: 3,057
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That motor looks like a Big Block with 2 cylinders lopped off.
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