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07-18-2016
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#11 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
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Re: Is the C4 ZR-1 the Fastest ?
BTW, the motor used for the 24hrs. was a spare that set aside because it was deemed to have a slight vibration.
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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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07-18-2016
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#12 |
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Join Date: Feb 2016
Location: Carterville Illinois
Posts: 852
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Re: Is the C4 ZR-1 the Fastest ?
If we are talking fastest, naturally aspirated motors, The Viper GTS's of the 1990's have the top speed. I believe it was 5MPH faster than the ZR-1.....But Dodge needed 2 more cylinders to do it. And if you have every drove a Viper really fast, it's a miracle your still alive. Not as stable/ planted as a Corvette at speed. Dodge needed to add Aero packages to go any faster safer. Hence the ACR's and special big winged Vipers.
I'm hard pressed to think of an American factory stock car, that could touch the ZR-1. That is until this new breed of Muscle cars hit around 2008......The 2012 Ford GT500 could hit 201MPH and I believe the 1989 Turbo Trans AM could hit 165MPH. |
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07-19-2016
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#13 | |
 Join Date: Jul 2005
Location: Jupiter, Fl.
Posts: 815
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Re: Is the C4 ZR-1 the Fastest ?
Quote:
As to the Vipers, can anyone cite a road test, or other documentation that states a 20th century Viper can clock 185? Much as I'd like to, I don't think a C4 ZR-1 with 3.07 gears, (and headers/no cats), can be considered "factory" either. But that documented 194-195 on the straight at Fort Stockton is surely impressive, regardless. Even with more horsepower, the Vipers and early ZO6's were limited by bad aero, but would a bone stock C4 ZR-1 really do 185? Who's done it? Not me. I've not come within 10mph of that. |
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07-19-2016
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#14 |
 
Join Date: Feb 2012
Location: Ledyard,CT
Posts: 8,245
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Re: Is the C4 ZR-1 the Fastest ?
You'er funny!
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07-19-2016
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#15 |
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Join Date: Jul 2005
Location: Jupiter, Fl.
Posts: 815
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Re: Is the C4 ZR-1 the Fastest ?
OK, just found a Motor Trend road test of a stock 97' Viper GTS that clocked 187.5
http://www.motortrend.com/cars/dodge...dge-viper-gts/ I don't know if any bone stock C4 ZR-1 could top that. 
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07-19-2016
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#16 |
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Join Date: Feb 2012
Location: Ledyard,CT
Posts: 8,245
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Re: Is the C4 ZR-1 the Fastest ?
American made Panoz sports cars are very fast 560 hp and weight at 3128 lbs !
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07-19-2016
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#17 |
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Join Date: Jul 2005
Location: Jupiter, Fl.
Posts: 815
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Re: Is the C4 ZR-1 the Fastest ?
1997 Panoz Esperante (of which one was sold), Est. top speed = 155. Gee, a "factory" (pre Callaway tune), Corvette can do that.
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"It's about the car, not the people." 1991 ZR-1 White/Black #1236 (Owner since 1994). Stock engine with bolt-ons: Hurst shifter,"Forced Air" intake, Coplon duct, Bee Cool Radiator, Demon coils, Jeal prom, Watson headers, X pipe, 3" B&B's, Rippie flywheel, 4:10 gears, A molds, Toyo Proxes-R888's 12.06@117mph. 1.76 60ft. |
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07-19-2016
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#18 |
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Join Date: Feb 2012
Location: Ledyard,CT
Posts: 8,245
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Re: Is the C4 ZR-1 the Fastest ?
Panoz also has a 750 hp 32 valve engine. You get what ever gearing you want.
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07-19-2016
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#19 | |
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Join Date: Feb 2012
Location: Ledyard,CT
Posts: 8,245
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Re: Is the C4 ZR-1 the Fastest ?
Quote:
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07-19-2016
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#20 |
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Join Date: Feb 2014
Location: AZ
Posts: 860
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Re: Is the C4 ZR-1 the Fastest ?
The street version of the Esperante debuted in 1999, and I actually believe it may have officially been classified as a 2000 model. That car was built with the 305HP Ford modular V8 from the Mustang Cobra. Later, more powerful versions certainly wouldn't have fallen within the realm of the OP's question, vis-a-vis 20th century American production automobiles and in fact, I'm not sure that ANY production Esperante does.
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