Dynamometer Results & Comparisons - 2013 GT500....609 RWHP Stock!

So the GT500 puts down 609 on a dynojet....

http://www.youtube.com/watch?v=zz9Uqg0xbm4

I have to admit that car just looks sick. The 609rwhp is just insane.

I dont know what it is about these new mustangs that stirs such a visceral reaction from me? They are a good looking car and obviously make gobs of power, but I would rather push a Chevy volt (on fire) than own one of these!

man, im stopping at the ford dealership after work. dammit!

This car is the ultimate muscle car...

Impressive number for sure on a stock car. I'm not loyal to any manufacturer, but for any American car company to do this is a great thing.

I dont know what it is about these new mustangs that stirs such a visceral reaction from me? They are a good looking car and obviously make gobs of power, but I would rather push a Chevy volt (on fire) than own one of these!

I think it's because the GT500 is getting old. Just like the original, they are now into the 6th year of availability. And while the Mustang has been updated, the overall look of the new GT500 hasn't really changed that much.

I'm with you on this one, the car is great, performance is nothing short of amazing, but it wouldn't spend 2 mins in my possession without me trying to sell it off for something else. Obviously, I'm not a mustang guy, but if I was to own one, it would be a Boss.

This is the general problem with pony cars - the more successful they are, the more of them on the road, the more boring they become. It's a visious circle really.

why would anyone want a Boss over this car?

not to take anything away from the car, because it is definitely badass...but that looks like a questionable dyno at best hahaha.

why would anyone want a Boss over this car?

I honestly don't really want either, but if I was forced to choose it would be the Boss. Why?? I see GT500s everywhere, almost as many in my area as sixers, it's gross. Also, I like the NA approach of the Boss, lighter weight, etc. In the end, it's purely personal taste.

Why would anyone want anything??? That's the real question. Each to their own, I don't question other's opinions, they are entitled to them. :cheers:

I honestly don't really want either, but if I was forced to choose it would be the Boss. Why?? I see GT500s everywhere, almost as many in my area as sixers, it's gross. Also, I like the NA approach of the Boss, lighter weight, etc. In the end, it's purely personal taste.

Why would anyone want anything??? That's the real question. Each to their own, I don't question other's opinions, they are entitled to them. :cheers:

im just asking as i like the boss too and wouldnt mind putting the extra $15+k in the bank, althought if this is true and the cobra is packing more than 700hp, that is pretty serious. to the point i would trade in my new cayman which is basically imo a better DD than the cobra

best time recorded is an 11.9 which is slow for a 600hp car IMO

best time recorded is an 11.9 which is slow for a 600hp car IMO

You have no idea what you're talking about....Motor Trend ran 11.6 and that's on street tires....this will be an EASY LOW 10 sec car with sticky tires and pulley swop

http://www.motortrend.com/roadtests/coupes/1205_2013_ford_shelby_gt500_first_test/

im just asking as i like the boss too and wouldnt mind putting the extra $15+k in the bank, althought if this is true and the cobra is packing more than 700hp, that is pretty serious. to the point i would trade in my new cayman which is basically imo a better DD than the cobra

I would much rather DD a Cayman or preferably Cayman S over the new GT500. Not trying to bash the Shelby, but your Porsche offers a lot more driver engagement IMO.

I dont know what it is about these new mustangs that stirs such a visceral reaction from me? They are a good looking car and obviously make gobs of power, but I would rather push a Chevy volt (on fire) than own one of these!

Perhaps you need to see a therapist?:jest:

You have no idea what you're talking about....Motor Trend ran 11.6 and that's on street tires....this will be an EASY LOW 10 sec car with sticky tires and pulley swop

http://www.motortrend.com/roadtests/coupes/1205_2013_ford_shelby_gt500_first_test/


Regardless of E/T, 125.7mph trap is very low for a car making that power. Tires not much of a factor in mph.

http://gifsforum.com/images/gif/dis%20gon%20be%20good/grand/this_gon_b_gud_gif.gif

you gotta give this car, and ford, props for really stepping up the game. However, i'd like to see what a 2.3L blower style supercharger will do on the lsa supplied in the ZL1. After reading that motor trend article, they state that the new cylinder walls are thinner, so I would also like to see how these motors hold up to the aftermarket game which i'm sure ton of people are going to increase the boost. but for the time being, this car is the ultimate definition in america of what a muscle car should be.

really can't wait to see the first 1000 hp production muscle car...anybody want to bet on that time frame? hah

My guess is that a 1000HP muscle car could be a reality in aprox. 4 to 5 years...

A stock car made in America will never see 1000hp. I just don't think it will happen.

Thats sick. Mustangs are really not for me though. I dont see these cars selling well. If I wanted that kind of power out of a mustang I would buy a kb 03/04 for way cheaper.

you gotta give this car, and ford, props for really stepping up the game. However, i'd like to see what a 2.3L blower style supercharger will do on the lsa supplied in the ZL1. After reading that motor trend article, they state that the new cylinder walls are thinner, so I would also like to see how these motors hold up to the aftermarket game which i'm sure ton of people are going to increase the boost. but for the time being, this car is the ultimate definition in america of what a muscle car should be.

really can't wait to see the first 1000 hp production muscle car...anybody want to bet on that time frame? hah

They said ; Ford deployed its plasma-transferred wire arc cylinder-liner coating technology, replacing the old cast-iron-sleeve design. The liners improve performance and durability while also reducing friction and lowering heat transfer.

it sounds good on paper..

Read more: http://www.motortrend.com/roadtests/coupes/1205_2013_ford_shelby_gt500_first_test/viewall.html#ixzz1vb9LVcrT

Very impressive numbers. I would certainly be happy with that kind of power from a stock powerplant. It's especially nice knowing that the car is only a pulley-swap, tune and sticky tires away from laying down some impressive times at the track.

My only gripe is the fact that the American manufacturers don't seem to care that much about weight anymore. Just keep throwing more power to the wheels to offset the fact that the car weighs 2 tons. Would love to see a powerplant like this in a 3,200 lb (or less) car. That's why I love the ZR1!

thank you Johnnystock for clarifying that, and you're right it does sound good on paper...

cranny, why don't you think there is a chance of a 1000 hp car? This is a 60k mustang that if is showing 600+ rwhp...on paper that turns our to 700+ at the crank assuming a 15% drivetrain loss. I think 1000 hp is right around the corner like chaman said especially since turbo's are becoming more and more popular.

It has a nice Cold air intake from the factory!!

I'd like to see another private shop dyno one to see how close it is to those numbers. I know I'm being cynical but I raised an eyebrow when they said it was "Fords" dyno. Not trying to hate on Ford at all, those numbers are impressive regardless and I might own one if I actually liked the looks of them.

I'd like to see another private shop dyno one to see how close it is to those numbers. I know I'm being cynical but I raised an eyebrow when they said it was "Fords" dyno. Not trying to hate on Ford at all, those numbers are impressive regardless and I might own one if I actually liked the looks of them.

Let's do the math...

5.8L GT500 rated at 662 SAE hp.

Ford dyno to rear wheels = 609 hp = 8.11% drivetrain loss assuming 662 SAE crank hp.

While most manual transmission drivetrains soak up closer to 15% or more power (this does change as power numbers increase, and usually equates to even more drivetrain loss).

So lets use 15% of SAE 662hp should dyno to the ground in the neighbourhood of 562.7 hp.

You be the judge of this one.

Had a good laugh reading this. I am having the same debate on a local board.

The ZR1s lose better part of 90-100hp with the same transmission no less. The only advantage the GT500 has is the solid rear axles lose a little less hp. 5-10 max. That said the Mustang would need to be making 680-690 flywheel minimum to make 609rwhp.

Also had the debate that mph means nothing toward hp, it is traction that give you trap speed. As we all know, you can run a 12.5@130mph, then get traction and go 10.7@129. I have actually had that happen myself. All on the same day, it was making the same hp, but had different traction levels.

I think it is a optimistic dyno, or they have under rated the motor by 40hp.

Let's do the math...

5.8L GT500 rated at 662 SAE hp.

Ford dyno to rear wheels = 609 hp = 8.11% drivetrain loss assuming 662 SAE crank hp.

While most manual transmission drivetrains soak up closer to 15% or more power (this does change as power numbers increase, and usually equates to even more drivetrain loss).

So lets use 15% of SAE 662hp should dyno to the ground in the neighbourhood of 562.7 hp.

You be the judge of this one.
Yep. Something's not kosher here. Either the dyno is wildly inaccurate, the car is underrated (doubtful, with the new SAE standards all makers use), or Ford slipped in a ringer here (That's never been done, now has it).:jest:

Let's do the math...

5.8L GT500 rated at 662 SAE hp.

Ford dyno to rear wheels = 609 hp = 8.11% drivetrain loss assuming 662 SAE crank hp.

While most manual transmission drivetrains soak up closer to 15% or more power (this does change as power numbers increase, and usually equates to even more drivetrain loss).

So lets use 15% of SAE 662hp should dyno to the ground in the neighbourhood of 562.7 hp.

You be the judge of this one.


:suspiciou

Reminiscent of the newly released GT-R that was track tested and most cars off the lots could not match its performance. Likely nothing left to tune out of it as it sits computer wise...

Look at the ls1 even, rated at 305-315 in f bodys and 345 in the vetts when they first came out. 300hp has happened here and there stock. The 03-04 were making 355-375 rear wheel rated at 390 also

I agree the car is bad ass and I'd love to have one. That being said I agree the MPH seems low for that kinda power. Even if just a little. My 03' Cobra made 598 RWHP/ 552 RWTQ on a dyno jet.

It trapped 128.7 MPH on street tires.

Could've been driver error I guess.

I agree with this one ...

Let's do the math...

5.8L GT500 rated at 662 SAE hp.

Ford dyno to rear wheels = 609 hp = 8.11% drivetrain loss assuming 662 SAE crank hp.

While most manual transmission drivetrains soak up closer to 15% or more power (this does change as power numbers increase, and usually equates to even more drivetrain loss).

So lets use 15% of SAE 662hp should dyno to the ground in the neighbourhood of 562.7 hp.

You be the judge of this one.

.... my question is where did this magazine get the car to be dyno'd ... from a showroom or from Ford? It has been common for many, many years for manufacturers to provide "special" cars for testing purposes.

I agree the car is bad ass and I'd love to have one. That being said I agree the MPH seems low for that kinda power. Even if just a little. My 03' Cobra made 598 RWHP/ 552 RWTQ on a dyno jet.

It trapped 128.7 MPH on street tires.

Could've been driver error I guess.

I just read a Road and Track article. Ford said (take it for what its worth) that it will trap 135 mph.

I would say its underrated. I believe hotrod or one those magazines were watching an engine dyno and it made 685it and they shut it down early. Not saying it isnt bs, but insane if its true. Id own one over a zl1. The front bumper on the ZL1 is hideous and the damn things are a pain in the ass to see out of. I love gm, but i thing as of now the gt500 is a better car. Im not truly brand loyal, i am a car enthusiast

Nothing new here.

Through FRPP, ford has been offering blower upgrades with tunes and warranty that can yield up to 750hp.

This car basically has a similar upgrade and probably cranks out 710-720hp stock. What I do find impressive is that they were able to maintain the msrp under $60K.

Assuming the driver is reporting the speedo correctly, I get 0-135mph in roughly 18 seconds. Not all that impressive to me but maybe it was hot out or something

Let's do the math...

5.8L GT500 rated at 662 SAE hp.

Ford dyno to rear wheels = 609 hp = 8.11% drivetrain loss assuming 662 SAE crank hp.

While most manual transmission drivetrains soak up closer to 15% or more power (this does change as power numbers increase, and usually equates to even more drivetrain loss).

So lets use 15% of SAE 662hp should dyno to the ground in the neighbourhood of 562.7 hp.

You be the judge of this one.

http://www.youtube.com/watch?v=ml0lG4sMTJU

Same car put down 613rwhp on a dynojet 10 miles away when it cooled down a bit at night.

Sweet mullet lol..

It still has to beat the zr1..

It still has to beat the zr1..

Why? The Shelby is a muscle car, not a sports car so its comp is the ZL1 and SRT8 Challenger.

The ZL1 will wax the Shelby azz all day long at autocross and road racing. Stock vs stock the Shelby is going to dominate the ZL1 in straight line performance on the street and drag strip. Once the mods start I think the saving grace at the drag strip will be that the ZL1 comes with a automatic too! Car hasn't been out much more than a month and they already have one in the 9s.

yeah i made a thread about this in the FI section, and I will mention that ford has underrated their cars before. look at the 03-04 terminators for example..390 from the factory......then dyno them and they hit 360-370s.....yeah they have done it before. its making around 700's. I still do not think it will hold a candle to the zr1 which is running 10.40's on radials. it will be this week though that motor trend finds out if it will do 200+ last week all they did was trash it through some gravel. it was despicable. but for the price, the look, the quality, and the shear way that ford has listened to the people who buy their products rather than the executives and designers...they came out on top. GM does not offer a car I will buy other than the zr1 and grand sport, and they are too slow for me to justify the payments when I could have a 9 sec DD for the same/lower price in a car that doesnt care about a pothole or two. ya dig


yeah here it is

http://www.youtube.com/watch?v=NRuE38Bl5Mo

I thought this was ls1 tech.

i guess i'll start penny pinching now and maybe i can afford one 20 years

Lets see, 5.8 and 15 psi of boost. Yes its gonna make 650 hp. Just for comparrison my friends 2011, 4500 lb car and driver ctsv coupe ran 12.10 at 118 mph. 6.2 with 9 psi boost. Now with 15 psi it would easily make 150 more hp. The caddy gets my vote.

Lets see, 5.8 and 15 psi of boost. Yes its gonna make 650 hp. Just for comparrison my friends 2011, 4500 lb car and driver ctsv coupe ran 12.10 at 118 mph. 6.2 with 9 psi boost. Now with 15 psi it would easily make 150 more hp. The caddy gets my vote.

Sorry, Cast LSA w/1.9< Forged 5.8 w/2.3. LSA loses this round stock for stock, and mod for mod. Just keepin' it real.

196mph!! wow!!

They got 583rwhp on their dyno, which seems more realistic to me..Thats huge anyway! That would be my ultimate car to buy for hp/$ ratio.

It still has to beat the zr1..

Wrong.

196mph!! wow!!

They got 583rwhp on their dyno, which seems more realistic to me..Thats huge anyway! That would be my ultimate car to buy for hp/$ ratio.

If they would have dynod it in 4th instead of 3rd it probably would have been more inline with other results.

If they would have dynod it in 4th instead of 3rd it probably would have been more inline with other results.

Good catch!

Honestly, i dont doubt for a second that this car can achieve close to 600rwhp stock. 196mph for a stock heavy car needs to put down some serious number on the rollers.

Just shows how happy some of these dynos are.

I am not a number chaser, I would still take a ZL1 over the new mustang. Just me though.

Gotta give it to ford. Hopefully GM will step their game up within the next year or so. I'll still take the ZL1 or a base Vette over the stang though.

Wrong.

what do you mean chaman? has it done so already.......i call bs if thats what your saying. zr1 has already been 10.40's on nothing but radials.

I just read a Road and Track article. Ford said (take it for what its worth) that it will trap 135 mph.

I will guarantee that this car wil not be trapping 135 mph in the 1/4 mi bone stock. With a pulley swap, ported blower...yes.

Did anyone see the back to back dyno comparison on youtube...ZL1 and Shelby gt500...They said the Shelby was doing 671 on the dyno at the wheels and the ZL1 only did 580 or so...609 rwhp is a bit closer to the ZL1...which explains why the same two cars on the video were only about a car and a half apart in a race...I was thinking that if the shelby really made almost 100 more hp at the wheels, it should have walked the camaro...but it didnt...even weighing 400 lbs less.

Car and Driver dyno'd the ZL1 and the GT500 on an independent dyno...ZL1 made 503 (13% drivetrain loss), GT500 made 566rwhp (15%) loss...FWIW they tried like crazy to validate Fords 200mph top speed...couldn't do it, topped out at 189 (ZL1 181). ZL1 won the comparison FWIW. Ran dead heat on the road course, with the ZL1 being much more consistent (not bad for 82 hp deficit). ZL1 needed to have been released with the 2300 blower, and making along the lines of 12-14 psi...it would have been much closer on the drag race, and it would have smoked the GT500 on the roadcourse. MOD for MOD this one is gonna get heated. You know guys are gonna be swapping on bigger blowers or Turbo kits. The benefit the ZL1 has it for road racers...seems to be a much more poised chassis/suspension setup. Add in the modded power, and in that setting it will be tough to beat. I would bet on the GT500 on the drag strip tho.

If they would have dynod it in 4th instead of 3rd it probably would have been more inline with other results.

Didn't they do that with the first 5.0? 4th gear 1.21:1 ratio rther than 5th gears 1:1??
skewed the dyno reading to make it look like it had insane power levels?

Regardless, bob jo jr. Buys shelby, pully swaps, beats the piss out of it and the blows his motor apart.
anybody know what a motor like that for a ford costs?

Bet its 1/3 the cost of the car or more.

Didn't they do that with the first 5.0? 4th gear 1.21:1 ratio rther than 5th gears 1:1??
skewed the dyno reading to make it look like it had insane power levels?

Regardless, bob jo jr. Buys shelby, pully swaps, beats the piss out of it and the blows his motor apart.
anybody know what a motor like that for a ford costs?

Bet its 1/3 the cost of the car or more.

And that's when they swap in an LS3:D

Give Ford credit where it's due. The mustang is something Ford, Ford racing, (the gt500) Shelby, all made on their own. From the design, chassis and motor if I am not mistake, (I could be) But the new Camaro is a Holden Ute/Commodore platform with a new body, nothing original for the car that really makes it a Camaro but the body design. Even the Holdens had LSX power house. But Ford is doing amazing things in every catagory they can off of a clean slate with the Mustangs. Truely a nice car, the GT500. One thing I can say though. For the Price, I'd rather stick with my 3k firebird and build the motor for the fraction of that cost and just have fun in it.

Give Ford credit where it's due. The mustang is something Ford, Ford racing, (the gt500) Shelby, all made on their own. From the design, chassis and motor if I am not mistake, (I could be) But the new Camaro is a Holden Ute/Commodore platform with a new body, nothing original for the car that really makes it a Camaro but the body design. Even the Holdens had LSX power house. But Ford is doing amazing things in every catagory they can off of a clean slate with the Mustangs. Truely a nice car, the GT500. One thing I can say though. For the Price, I'd rather stick with my 3k firebird and build the motor for the fraction of that cost and just have fun in it.

gm has owned Holden since the 1930s. the Holden commodore platform has been a gm platform all along.:usa:

We've been using the 15% driveline loss equation for years and years. Is there a possibility they are making the transmission, driveshaft, rearend more efficient?

The new GT500 has a carbon fiber driveshaft. That adds to the lack of drivetrain loss at least a little bit.

We've been using the 15% driveline loss equation for years and years. Is there a possibility they are making the transmission, driveshaft, rearend more efficient?

The new GT500 has a carbon fiber driveshaft. That adds to the lack of drivetrain loss at least a little bit.

only one way to tell. chassis dyno, pull the motor, engine dyno - all within a couple hours. then you will know for sure. it can be done with a competent team with specific roles.

I like the look of the gt500 alot. 609hp is nice,but the car is so heavy. I'm about 60hp less n/a but much lighter by far. My boys dad has a new gt500 and we think it a matter of time before the old man mods her.

We're making some good progress on the pulley tune, heres a little teaser...

703 ft/lbs, at 2840 RPM.

Got torque?

Car left today, making 680 rwhp/712 ft/lbs....and there is still a little more in it.

The stock TB has become a restriction, so thats next in an effort to get up past 700 rwhp :)

Car left today, making 680 rwhp/712 ft/lbs....and there is still a little more in it.

The stock TB has become a restriction, so thats next in an effort to get up past 700 rwhp :)

Those things are pushing 15 psi stock with the 2300 right?
How far do you think you can push it before it starts to loose efficiency?

Those things are pushing 15 psi stock with the 2300 right?
How far do you think you can push it before it starts to loose efficiency?No....stock it makes about 10 psi ;)
With just some tuning we saw a slight boost increase by keeping the bypass stuff shut down, which accounts for some of the massive gains we saw in the tune. With the pulley this car is at about 15-16 psi now.

Thanks

No....stock it makes about 10 psi ;)
With just some tuning we saw a slight boost increase by keeping the bypass stuff shut down, which accounts for some of the massive gains we saw in the tune. With the pulley this car is at about 15-16 psi now.

Thanks

Really? I just read on like 10 different sites, and they all say 15?

Really? I just read on like 10 different sites, and they all say 15?This was according to our tuner and based on what he saw in the logs :)

I looked and the internet told me 12, 13, and 15 psi....don't mater whats on the web though, all that really counts is how much pressure actually builds in the manifold.:cheers:

I rode in in one of these last week. These things are monsters. Couldn't imagine one with some tuning. My only complaint about the car was the ridiculous amount of road noise in the car. I don't know if its the tires or what. Sick car none the less. The wife wants one as do I but I can't swing the 60k price tag right now.

The one we just finished made just under 15 psi stock.

It's been trapping 128.xx mph bone-stock with a 3850# race weight, not including driver. Bitch about ET all you like...a $500 pair of 275 MT ET DRs or bias plies would fix that. Trapping 128 at that fat weight takes some power and engineering my friends...

600whp is right about there.

Check my sources if you like - Car & Driver, along with every other car mag (it seems) just did shootouts and comparos between the 2013 Shelb and the ZL1 Camaro. Results may surprise you, regardless of which American car flag you salute...

Yea the zl1 was faster on a road course and the gt500 was quicker in the quarter. They need a wider tire on the gt500. Both cars are nice though.

For those who haven't done homework on these, the problem with them getting down the track isn't just the tires, it's the gearing. You don't even get into 4th until about 135 mph. Running a car that heavy and not even being able to run out 3rd gear certainly isn't the way to go for performance. With bolt on's and a 4.10 gear (on the stock tire size that would put it at 6900rpm at 140mph) I expect 9's should be a common thing for them. Form GM to put the TVS1900 on the ZL1 is just plain stupid and they know it. There is a reason the ZR1 gets the correct blower size for the motor size. The ZL1 has independent rear suspension which has gotten it better press, but we all know that the boss is just plain faster. The ZL1 just needs to get the LS9 in a wet sump form and with a better baffled pan.

BTW, specs on the GT500

http://media.ford.com/images/10031/2013_GT500_Specs.pdf