Is the C4 ZR-1 the Fastest ?

[Paul Workman]

Originally Posted by edram454

world record 1990 car with 3.08 or 2.73 gears went 195 on straight away in fort Stockton. 100% stock motor. This was to keep it at 5800 rpm for 24 hours.

I like the viper but not much of a fan of that truck v10 engine. I heard one at Aaron Scotts house that he recammed and that thing sounded like it should, radical. stock vipers sound like chriscrart motor boats.

ed ramos #3028

Yes! That or UPS delivery trucks...

[Enginerd101]

Originally Posted by edram454

world record 1990 car with 3.08 or 2.73 gears went 195 on straight away in fort Stockton. 100% stock motor. This was to keep it at 5800 rpm for 24 hours.

I like the viper but not much of a fan of that truck v10 engine. I heard one at Aaron Scotts house that he recammed and that thing sounded like it should, radical. stock vipers sound like chriscrart motor boats.

ed ramos #3028

The Viper V10 is a truck engine in the way that the LT5 is a SBC.

[KILLSHOTS]

Originally Posted by Enginerd101

The Viper V10 is a truck engine in the way that the LT5 is a SBC.

Yep. And to follow up on your point, in the late 80s, my father had a "Chris Craft motor boat" with twin factory 370HP 454s and virtually un-muffled through-hull exhaust. In my experience, they can sound completely amazing.

[ZRXMAX]

Based on roadside markers counted off a number of times in different places and timed with a stop watch my stock 91 Z with headers, a tune, forced air, and 3.07 gears barely exceeded 180mph in 5th gear. This was also at altitude between 5400 ft and 3000 ft.

[Bob Eyres]

Originally Posted by MarkSS

Fastest American production car of the 20th century would go to the ZR1s cousin... the 1991 Callaway B2K areobody was clocked at 192... Vipers of that era were 185.

JMHO, but I don't consider the Callaway a factory production car, B2K or not. Those Corvettes came from the factory with 350/245hp. engines. Lingenfelter, or Callaway cars, as great as they might be, are really tuner cars. Not from Bowling Green.

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.

[rush91]

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.

[BigJohn]

You'er funny!

[Bob Eyres]

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.

[Enginerd101]

Originally Posted by Bob Eyres

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.

The 97 viper GTS went 192.6 for motor trend in May 1998:

https://www.youtube.com/watch?v=FWgoSYk7lsA

I had my 1991 Zr-1 with 4:10's, exhaust, intake, and haibeck chip at the same time as my 1997 Viper GTS. Love the Z, but the viper will eat it for a snack. Only mods on the viper are high flow cats and Corsa exhaust.

[Johnny5]

Originally Posted by Enginerd101

The 97 viper GTS went 192.6 for motor trend in May 1998:

https://www.youtube.com/watch?v=FWgoSYk7lsA

I had my 1991 Zr-1 with 4:10's, exhaust, intake, and haibeck chip at the same time as my 1997 Viper GTS. Love the Z, but the viper will eat it for a snack. Only mods on the viper are high flow cats and Corsa exhaust.

Yea but the VIPER has a dodge NEON interior, literally all plastic crap just like the Vette but I think the Vette is a lil nicer and half the price (unless you biught a ZR1) which i could have never afforded new, it wasn;t til the new generation viper that interior quality was improved along with the C7. The new VIPER is truly is a beautiful car now. Idk if I can say the same about the C7 it's too tall, kinda plane looking unless you get the carbon fiber kit or Z06, although AUTOMATIC Z06????? what's America coming too?????. Growing up the Viper GTS (red with white stripes) and the ZR-1 were my favorite cars and still love them but when I graduated college and needed a reliable everyday car instead of my 94 LT1 that i used to deliver pizzas with in the snow up and down hills (true story....if the car wasn't manual I'd be dead...thank god for downshifting) I got a great deal on a used Acura TL (6speed sport package, bigger brakes etc) I noticed how much quality materials you get when you buy high end Acuras and Lexus'. Don't get me wrong the VIPER It's still a bad *** car but for 80 grand you think you would get more than a V10 with a neon interior. But the ZR1 aint much different, how hard could it have been to put suede or quality materials for such a limited production car like the Z. Now the base vettes and vipers do. But viper vs C7 I'd take rthe viper all day But, I can't afford it so I'll ride my LT5 till it dies.