Is the C4 ZR-1 the Fastest ? - ZR-1 Net Registry Forums

Bob Eyres · 07-17-2016

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 · 07-17-2016

Has to be the ZR-1 or the Viper.

Sent from my iPhone using ZR-1 Net Registry

KILLSHOTS · 07-17-2016

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 · 07-17-2016

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 · 07-17-2016

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 · 07-18-2016

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 · 07-18-2016

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 · 07-18-2016

Quote:

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.

Quote:

Originally Posted by edram454

stock vipers sound like chriscrart motor boats.

I chuckled at that comparison.

Paul Workman · 07-18-2016

Quote:

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)

XfireZ51 · 07-18-2016

BTW, the motor used for the 24hrs. was a spare that set aside because it was deemed to have a slight vibration.

07-17-2016	#1
Bob Eyres Join Date: Jul 2005 Location: Jupiter, Fl. Posts: 815	Is the C4 ZR-1 the Fastest ? 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. __________________ "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.

07-17-2016	#2
Jamesbea Join Date: Jan 2013 Location: Work Posts: 21	Is the C4 ZR-1 the Fastest ? Has to be the ZR-1 or the Viper. Sent from my iPhone using ZR-1 Net Registry

07-17-2016	#4
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,802	Re: Is the C4 ZR-1 the Fastest ? 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.

07-17-2016	#5
Billy Mild Join Date: Aug 2014 Location: Kansas City, MO Posts: 838	Re: Is the C4 ZR-1 the Fastest ? 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. __________________ Looking for a ZR-1 1985 Yamaha RZ350-NOT STOCK 1971 Yamaha AT1-Middle of a restoration

07-18-2016	#6
MarkSS Join Date: Dec 2015 Location: MN Posts: 75	Re: Is the C4 ZR-1 the Fastest ? 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.

07-17-2016	#3
KILLSHOTS Join Date: Feb 2014 Location: AZ Posts: 860	Re: Is the C4 ZR-1 the Fastest ? 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.

07-18-2016	#7
edram454 Join Date: Nov 2013 Location: .. Posts: 693	Re: Is the C4 ZR-1 the Fastest ? 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 __________________ EDRAM454 1990 #3028..siamese ported plen/hous/SGC/fidanza/DRM LTHeaders/DRM roll cage/camber rod/drilled slot rotors hawk track pads/grand sport calipers/full corsa exhaust/Hurst/NO cats/custom SGC chip/cbeamplate/315's on all 4/intake water plugged/smog removed..RC injectors/LED lights..SHOULD NOT HAVE PUT ALL THE MONEY IN IT.. SOLD.

07-18-2016	#10
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,708	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. __________________ [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