Filed under: Tuners, Supercars, Chevrolet
Corvette ZR1 dyno'd at 535 rwhp

It always happens this way. Shortly after a new performance car is released to the public, it will find its way to a dyno shortly thereafter. When that new vehicle is the new performance king of the automotive world, aka the 2009 Corvette ZR1, our collective interest is piqued. So, how does it fare on the rollers? Two separate 'Vettes were tested, and the average output was about 535 horsepower at the rear wheels. After factoring in the normal 15-percent drivetrain losses for a rear-wheel drive car, that's pretty darn close to the claimed 638. After a bit of tinkering the team got that number up near 570, saying it's running a bit rich from the factory. Click here for the full graph.
Until the V-Spec GT-R is unveiled the ZR1's most natural competitor might be the normal Nissan GT-R; despite the pricing disparity between the two, they are the two most amazing performance bargains currently on the market. For what it's worth, the GT-R seems to be averaging about 420 horsepower at the wheels. Apples to oranges? Sure, but it's always fun to throw a little more fuel on the fire. If we didn't do it, you know it would come up in the comments. And so it will, have fun.
[Source: Corvette Blogger]
Reader Comments (Page 1 of 2)
Jo. A. Borras 3:40PM (9/24/2008)
What % driveline loss are they claiming?
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HotRodzNKustoms 3:42PM (9/24/2008)
You have to remember that the SAE standards that GM rates the horsepower by are not duplicated in such a dyno test.
But man is that a lot of horsepower no matter how you look at it.
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Franz 3:52PM (9/24/2008)
You got that right. Anything over 500 at the wheels is a helluva lot.
Jag 3:54PM (9/24/2008)
Price disparity? What price disparity? Looking on Yahoo right now there are ZR-1's avalible for about the same price as GT-R's.
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Franz 4:09PM (9/24/2008)
The most expensive GT-R's (premium model) msrp is $79k, while the ZR1's msrp is $103k. That's the price disparity they're talking about.
Alex 3:58PM (9/24/2008)
USA! USA! USA!
j/k, but seriously, that is a kick ass 'vette. The Ford GT still holds my heart for top American supercar, but the ZR1 is laying smokey burnouts just outside the garage in my head.
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Charlie 5:52PM (9/24/2008)
I totally agree about the Ford GT. It's my favorite American supercar, as well. Nothing against the ZR1 or ACR.
USCGTO 3:59PM (9/24/2008)
so no fight here in the comments section.
While GM released the correct specs (HP) on the ZR1, which turned out to a "measly 535" at the wheels, Nissan claimed only 480 ( I know hand built engines and different HP).
here I tried it, a week attempt at it. But I tried it..where's the flame-suit..????
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Berto 4:14PM (9/24/2008)
Never been so proud of being American, haha.
I'll take one in black. Thanks.
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Parkerman 4:31PM (9/24/2008)
"Until the V-Spec GT-R is unveiled the ZR1's most natural competitor might be the normal Nissan GT-R"
Umm... Viper ACR..?
*cries* but its not refined! and is a race car!!! *cries*
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nickinacan 4:33PM (9/24/2008)
More like street legal NATURALLY ASPIRATED race car. It's not a refined car, but requires refined driving skills.
CORVETTE ZR1 4:42PM (9/24/2008)
( THE VIPER IS BADASS BUT... ) After Days of research... iv'e come to the exclusion that the Corvette ZR1 is not the competition for the Viper SRT10 ACR. The ZR1 being a high performance sports car and the ACR being a high performance Track/Street Legal Race car. The ZR1's competition is the standard Viper SRT10 not the ACR. with that said you cant compare them......Now as for the competition for the ACR... these are some cars... Lotus Exige S 240, Porsche 911 GT3 RS, Lamborghini Gallardo Superleggera, Ferrari 430 Scuderia, Noble M15, GTR V-Spec. ( if there is no back seat and its striped out a bit and theres an aero kit... ) Those Cars Are are the competition for the Viper SRT10 ACR. ( Not The ZR1 )
nickinacan 4:31PM (9/24/2008)
Natural competitor is the GT-R?!? What the heck happened to the Viper?
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Parkerman 4:43PM (9/24/2008)
I would also like to link this..
http://www.autoblog.com/2007/12/08/2008-dodge-viper-srt10-hits-the-dyno/
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Amien 4:44PM (9/24/2008)
Exactly what it says, The ACR with the Hardcore package is not really as close to being a complete road car as the GT-R and the ZR1.
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DavidFarmer 4:48PM (9/24/2008)
that dyno number dissapoints me...my stock Z06 made 470hp STOCK, so I'd think a ZR1 should make close to 570hp at the wheels WITHOUT the tinkering. However, I drove a ZR1 at VIR while instructing for the National Corvette Museum, and it makes more power than anybody needs!
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TKOsoccer03 5:27PM (9/24/2008)
you are so full of it.. NO stock Z06 would dyno at 470. one of the dumbest lies ever told online.. seriously.
the Z06 puts out about 450 hp at the rear wheel.. FACT. Every Z06 MT has dynoed has come in around 450, with about a 10% loss.. and nothing less than 10% has ever been recorded on a dyno for the Z06.
you're full of it .. and you're probably 12.
extinctdoughnut 5:43PM (9/24/2008)
Where did that other reply go? Whether David is full of it or not on the 470 number I have no clue. But I'm pretty sure he isn't 12 years old.
http://www.google.com/search?q=david+farmer+world+challenge&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
RJ 7:41PM (9/24/2008)
It would also depend on the type of dyno. The numbers would make sense if they used a Mustang dyno, which tends to grossly under-rate cars.
If the 535hp is on a Dynojet, I'm a bit disappointed as well. That's about where an LS7 dyno with LT headers, exhaust, intake, and a couple other simple mods.
Dave 9:55PM (9/24/2008)
davidfarmerstuff.com
I'm definitely not 12, and I've been professionally racing Vettes for 20 years. Our car was dyno'd on a Dynojet