Is the C4 ZR-1 the Fastest ?

[Bob Eyres]

Is the C4 ZR-1:

"The Fastest American Factory Production Car of the Twentieth Century"?

Now that's a bunch of qualifiers there, but what vehicle is faster? Not talking 0-60, or quarter mi. times, just top-end.
No "tuner cars" either, factory stock.

[Jamesbea]

Has to be the ZR-1 or the Viper.


Sent from my iPhone using ZR-1 Net Registry

[KILLSHOTS]

I think the 2nd gen (96 and later) Viper coupes were a little faster, but that is probably the only pre-2000 American ride that could pull on a Z up top.

[mike100]

Maybe you don't consider it a production car, but the Vector W8 twin turbo was over 200 mph.

If you remove the qualifier 'American car', the Jag XJ220 and F40 come to mind as being the fastest production cars of that era.

[Billy Mild]

The Porsche 959 was able to go 198 MPH, some say it was good for 202 MPH just like the F40. Who really knows though.

[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. Fastest test time I was able to find for a stock ZR1 was 185. However... to be really accurate it would have to be same track same day... so who knows... the ZR1 is definitely in the conversation and has the distinction of averaging over 175 for 24 hours which no other car of the 20th century can say.

[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

[spork2367]

Originally Posted by mike100

If you remove the qualifier 'American car', the Jag XJ220 and F40 come to mind as being the fastest production cars of that era.

Remove that qualifier and assume factory gearing and there are probably 30+ cars from the late 70's to 90's that best the ZR1 in top speed. Although admittedly most wouldn't keep up in acceleration at all.

Originally Posted by edram454

stock vipers sound like chriscrart motor boats.

I chuckled at that comparison.

[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...

[Paul Workman]

Originally Posted by spork2367

Remove that qualifier and assume factory gearing and there are probably 30+ cars from the late 70's to 90's that best the ZR1 in top speed. Although admittedly most wouldn't keep up in acceleration at all.



I chuckled at that comparison.

Remember too, the FIA (Stockton) ZR-1 also had the accelerator "blocked" to limit the throttle to the pre-determined setting necessary to break the record w/o over stressing the motor needlessly (ref: Heart of the BEast by Young)