Filed under: Coupes, Sports/GTs, Ford, Shelby
GT500KR underrated? 5.0 Mustang dyno tests the King of the Road
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There's horsepower, and then there's dyno-tested, can't-lie-to-your-friends horsepower. If you want to know how much power a car really makes, you've got to strap it to a dyno and spin it to redline. The guys over at 5.0 Mustang & Super Fords are always eager to find the true horsepower of a car, and so when they took delivery of a GT500KR to review they headed straight to the dyno to see how much power the supercharged V8 is putting out. What they found was somewhat surprising -- the KR produced 509 horsepower and 467.7 lb.-ft. torque to the wheels. Adjusting for an estimated driveline loss of 15 percent, the actual output at the flywheel is 589.82 hp and 550.24 lb-ft torque -- nearly 50 more horsepower and 40 more lb-ft than Ford is claiming. Take that Z06!
[Source: 5.0 Mustang & Super Fords]
Reader Comments (Page 1 of 5)
Goat Law 11:35AM (7/16/2008)
"Take that," says the obese, nose heavy Mustang as it gets lapped by the Z06.
Reply
Jared 11:42AM (7/16/2008)
Yup. The Mustang is heavier than a Corvette, with more weight on its nose, a higher center of gravity, and a solid rear axle. The Mustang can not keep up on a road course.
Randy 12:07PM (7/16/2008)
Isn't a Mustang a 4 passenger car and a Vette a 2 passenger car?
I like that you can take a car that's not designed to race and make it eat a race car for breakfast! That to me is cool!
I love the 89-95 Mustang LX 5.0's that once modified with a Paxton SC and a few tweaks would eat a Vette for breakfast, lunch and dinner! And all for 30K less! :)
I still respect the Vette though! And for the record, most Vette owners I've ever met are REALLY a-holes! That's not an urban legend! LOL jk
Torrent 5:54PM (7/16/2008)
Z06 has it beat.
Keat 11:37AM (7/16/2008)
It still has a live rear axle.
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Stuka 3:11PM (7/16/2008)
And for a road race is can hurt you some, but for drag racing, its the best thing to have...
Dave 11:39AM (7/16/2008)
F irst
O n
R ace
D ay
Reply
Majarvis 11:57AM (7/16/2008)
More like:
Fix
Or
Repair
Daily
rar 12:02PM (7/16/2008)
Not that I have anything againt Mustangs but:
F ound
O n
R oad
D ead
Stumper 12:36PM (7/16/2008)
F 'er
O nly
R uns
D ownhill
220v 12:54PM (7/16/2008)
Forgive
Our
Research
Department
Blake 12:59PM (7/16/2008)
@220v:
That was the best one yet! Haha
RLQ 6:06PM (7/16/2008)
HAHAHA
Kumail 11:42AM (7/16/2008)
the mustang is probably the only ford i would EVER consider getting, and that's after i get a genesis coupe
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f650 11:43AM (7/16/2008)
Yea, pay no mind it weighs two tons, yay horsepowarr! Take that Z06, I failed physics!
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Sam 11:47AM (7/16/2008)
That's definitely a boatload of power, and kudos to Ford for underrating their engines as opposed to the 2001 Cobra debacle, but this vehicle still is no track car. Drag strip, maybe, but not a vehicle to be pitted against a Z06 or GTR on open-track days.
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Rob 12:22PM (7/16/2008)
It was the '99 Cobra that was down on power. They were recalled and fixed which caused a 1 year lapse in production. The 2001's hit the street with the advertised HP. Ford seems to underrate all of the supercharged motors. The 03-04 cars put out way more than 390hp.
Sam 12:41PM (7/16/2008)
Rob:
Thanks for the correction. That was off the top of my head.
Cop Car 1:04PM (7/16/2008)
True, but most cars or people never see a track. It's all about the street. How is it going to do in a race from whatever to 140mph or so. Bascially against anything short of an Enzo, ZR1 or the latest Viper, it really is King of the Road.
Avinash machado 11:47AM (7/16/2008)
Was there not a Top Gear episode several months ago where they dynoed some Mustang and claimed it was not making the claimed power?
Reply