2005-2009 Mustang Information on The S197 {Gen1}

Stock 2007 GT500 rwhp?

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Old 4/16/13 | 04:09 AM
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Stock 2007 GT500 rwhp?

What does a 2007 GT500 make to the wheels bone stock?
Old 4/16/13 | 04:48 AM
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Originally Posted by t-fatty
What does a 2007 GT500 make to the wheels bone stock?
Around 440 whp
Old 4/16/13 | 04:52 AM
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Originally Posted by steven46746

Around 440 whp
Yes this is correct, Topgear put one on a Dyno it was 447,they then took a water marker and crossed out the GT500 on the side and wrote GT447.lmao
Old 4/16/13 | 05:20 AM
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Thanks, lmao at GT447.

A friend of mine has the GT500, i was wondering how close i'd be with a tune. It looks like 400 rwhp for me with a tune, so he's still got 50 more, it would be a real close race.

The only thing that might save me is gearing, i have 3:73's and he has 3:31's.
Old 4/16/13 | 05:30 AM
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Originally Posted by t-fatty
Thanks, lmao at GT447.

A friend of mine has the GT500, i was wondering how close i'd be with a tune. It looks like 400 rwhp for me with a tune, so he's still got 50 more, it would be a real close race.

The only thing that might save me is gearing, i have 3:73's and he has 3:31's.
He also has 3-400 lbs on you and traction issues.
Old 4/16/13 | 11:44 AM
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You should be able to beat him. I raced a good friend with a 2007 GT500, He has a Lund tune, smaller pulley and a CAI and I was Stock, We both had drag radials.
He ran 11.82@120
I ran 11.92@115.5

This was our best runs of the day, so if he is stock you should get him. He weighs 3900
Read this article on a test of a 07GT500
http://www.edmunds.com/ford/shelby-g...oad-test1.html

Last edited by UnrealFord; 4/16/13 at 11:49 AM.
Old 4/16/13 | 04:24 PM
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Ya you should be able to take him. Mine was 430 hp 420 tq stock. Also 3950 lbs stock plus driver...
Old 4/17/13 | 07:31 AM
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Originally Posted by UnrealFord
Yes this is correct, Topgear put one on a Dyno it was 447,they then took a water marker and crossed out the GT500 on the side and wrote GT447.lmao

Ahhhh... the day I get to **** on Clarkson's grave for that I've been arguing with some guy on TG's website about the dyno results. His opinion is pretty much that Shelbys are crap because they don't offer 500 rwhp from the factory "as proven by Top Gear". Well the 07-09 cars anyway.

Last edited by bob; 4/17/13 at 07:34 AM.
Old 4/17/13 | 07:42 AM
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Originally Posted by bob

Ahhhh... the day I get to **** on Clarkson's grave for that I've been arguing with some guy on TG's website about the dyno results. His opinion is pretty much that Shelbys are crap because they don't offer 500 rwhp from the factory "as proven by Top Gear". Well the 07-09 cars anyway.
Well when have they ever come stock 500hp? Before 11+ models at least. Also, up until '11, the 5.0/302 was really more of a 4.9 IIRC. Theyre just mad that American cars are becoming more popular than their euro-treasures
Old 4/17/13 | 07:34 PM
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Originally Posted by bob
Ahhhh... the day I get to **** on Clarkson's grave for that I've been arguing with some guy on TG's website about the dyno results. His opinion is pretty much that Shelbys are crap because they don't offer 500 rwhp from the factory "as proven by Top Gear". Well the 07-09 cars anyway.
GT500 brand was never intended to be that for the hp.
Old 4/17/13 | 07:43 PM
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Originally Posted by UnrealFord

GT500 brand was never intended to be that for the hp.
The GT500 was always supposed to have the highest hp out of all the mustangs. Just not always the best performing model.
Old 4/17/13 | 07:48 PM
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Originally Posted by AlsCobra
The GT500 was always supposed to have the highest hp out of all the mustangs. Just not always the best performing model.
Agree, GT500 has some believing it stood for 500 hp which is incorrect.
Old 4/18/13 | 08:35 PM
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Originally Posted by UnrealFord
GT500 brand was never intended to be that for the hp.
I know that, I'm well aware of where the name came from but when you have a tongue in cheek show people take as gospel it gets ugly.
Old 4/19/13 | 02:26 PM
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Here's the clip. Fast forward to the 3:44 mark...

Old 4/19/13 | 04:58 PM
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this guy has a story too

http://www.svtperformance.com/forums...-09-gt500.html
Old 4/19/13 | 05:41 PM
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Once i get tuned i'll give him a call, his is bone stock with 5,000 miles.
Old 4/20/13 | 09:01 AM
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Been to the track yet T?
Old 4/21/13 | 06:25 PM
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No not yet, it just passed 1500 miles.
Old 4/25/13 | 11:19 AM
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The 500 hp rating is at the flywheel NOT the rear wheel.

American cars always rate their hp numbers at the flywheel.

So 440 rwhp would actually be higher than 500 at the flywheel accounting for parasitic loss.

I raced a GT/CS with my car... not sure if it was a 2012, but it was brand new. He didn't beat me. He wasn't actually really that close.

I have an '06 with a GT500 drivetrain so I'm actually lighter than the CS I believe... but in any case that was the result.

If your friend is on stock Goodyear tires then yeah he'll likely have traction issues... if not then he probably won't at stock HP level.

I didn't have traction issues really until I did my blower swap... now it's fairly crazy with traction all the way through 3rd, but if he knows how to drive it won't really be an issue even then.
Old 4/25/13 | 12:31 PM
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Originally Posted by Imatk
The 500 hp rating is at the flywheel NOT the rear wheel.

American cars always rate their hp numbers at the flywheel.

So 440 rwhp would actually be higher than 500 at the flywheel accounting for parasitic loss.

I raced a GT/CS with my car... not sure if it was a 2012, but it was brand new. He didn't beat me. He wasn't actually really that close.

I have an '06 with a GT500 drivetrain so I'm actually lighter than the CS I believe... but in any case that was the result.

If your friend is on stock Goodyear tires then yeah he'll likely have traction issues... if not then he probably won't at stock HP level.

I didn't have traction issues really until I did my blower swap... now it's fairly crazy with traction all the way through 3rd, but if he knows how to drive it won't really be an issue even then.
06 Shelby you say.......maybe the 2006 made more power......

Also 500 x 0.12 = 60. 500 - 60 = 440. And your "Shelby" is around 4k lbs so at least 300lbs heavier.

Nvm just noticed you said "Shelby drivetrain"

Last edited by steven46746; 4/25/13 at 12:46 PM.


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