top gear gt500 (watch it while you can)

[super cirrus]

http://www.youtube.com/watch?v=mGbhKQlUhLo

Im surprised at the amount of misinformation in this one

 

[Dead_Poetic]

Yea, isn't the 500 hp supposed to be at the crank. I'm sure they measured at the wheels. oh well.

 

[Gabkicks]

them choosing to measure hp from the wheels dissapointed me. i've never seen them do this to any euro or japanese cars... oh well.

 

[Wolfe]

Other than the dyno thing, there really isn't much misinformation. The GT500 really isn't that great of a car. And when it comes to the dyno thing, he kinda redeemed it by testing his own car on international television and still going by the wheel horsepower.

 

[Jay]

In a older episode they did the same Dyno on a few old supercars and that time James May said they calculate what the engine HP would be, not sure if they gave the calculated figure this time or not.

but 440rwhp would equal more than flywheel 500hp (even only 20% drivetrain loss thats 528hp) so I don't think that is wheel HP. Isn't the GT500 under 500 flywheel HP anyway?

 

[super cirrus]

In a older episode they did the same Dyno on a few old supercars and that time James May said they calculate what the engine HP would be, not sure if they gave the calculated figure this time or not.

but 440rwhp would equal more than flywheel 500hp (even only 20% drivetrain loss thats 528hp) so I don't think that is wheel HP. Isn't the GT500 under 500 flywheel HP anyway?

it is whp. every dyno like that measures hp as it hits the ground, with the driveline loss. If you knew about SVT, the past few years their cars have been making more power than advertised. The GT500 (rated 500, makes about 530), as well as the 03-04 cobra (rated 390, made about 425) and the ford GT (rated 550, makes about 600) were all underated.

 

[Jay]

it is whp. every dyno like that measures hp as it hits the ground, with the driveline loss. If you knew about SVT, the past few years their cars have been making more power than advertised. The GT500 (rated 500, makes about 530), as well as the 03-04 cobra (rated 390, made about 425) and the ford GT (rated 550, makes about 600) were all underated.

I have read the opposite with the GT500 so far, I have yet to see anyone claim it makes more than 500hp and a few that claim less. Not to mention the performance figures of the car. and if it did have 440whp then that makes the car look even worse in its perfomance figures. I don't believe it has 440rwhp.

*edit* just checked another dyno and they got 421whp which is more believable, unless Ford tinkered with Top gears GT500.

 

[super cirrus]

Other than the dyno thing, there really isn't much misinformation. The GT500 really isn't that great of a car. And when it comes to the dyno thing, he kinda redeemed it by testing his own car on international television and still going by the wheel horsepower.

They said that:
the GT500 had an open differential (wrong)
It has the Ford GT engine (wrong: completely different block and blower)
They did not change the suspension (The GT 500 gets unique suspension tuning, springs, anti-roll bars, bushings, shock valving, and a 12-to-15mm ride-height reduction)
that brakes were the same as the 300 hp mustang GT(it comes with 4 pot brembos)

 

[super cirrus]

I have read the opposite with the GT500 so far, I have yet to see anyone claim it makes more than 500hp and a few that claim less. Not to mention the performance figures of the car. and if it did have 440whp then that makes the car look even worse in its perfomance figures. I don't believe it has 440rwhp.

Its not underpowered.

http://www.svtperformance.com/forums/showthread.php?t=318524

There are numbers all over the place, but most are in the 440 range. The reason it performs so bad is that it weighs nearly 2 tons (3800 lbs for the coupe, 3900+lb for the vert), plus, due to the iron block and blower, weight distrigution (57F/43R ) is far worse than the aluminum block Roush.

 

[Jay]

Not bad, well I just learn't something new about the GT500.

Naught naughty Top gear.