2013 Mustang GT500 MEGA THREAD

[JimmyDeanSausage]

Originally Posted by LOWDOWN

For the eleven-hundred-millionth time, NO tuner shop has any interest in reaching a vehicle's ultimate performance IN STOCK TRIM...NONE.

They'll run a "base time"...then throw their "magic" at 'em, and bang the drum about how their super-duper-ultimate-ginormous "technology" will gain YOU all manner of delightful time slips AFTER you write them an equally ginormous check...

Shops who can ONLY run 12.5s ought to know better...or just quit. For God's sake, CandD ran 12.3s on SAND...in ARIZONA...which is nowhere near sea level... INDE, not Firebird.

C and D ran 12.3 CORRECTED in ARIZONA. Which means that ALTITUDE WASN'T A FACTOR in their ETs and TRAP SPEEDS, but you can SURE BET that it helped make it FAR EASIER TO LAUNCH.

Do you not understand that?

[MauriSSio]

Originally Posted by strych9

I have had my Camaro exactly one month plus a week. I have had some issues that were caused by the dealer's cleaning crew, as well as some warranty issues that appear to be inherent problems with the Camaro. All this having been said, I am scheduling an appointment to get 3 of the 'bee stripes replaced, passenger door adjusted, and getting the front bumper repainted. This will be its third trip to the dealer to correct cosmetic problems.

After driving this car a little over 1600 miles, given the problems I've had, it's been the worst "new car" experience I ever gone through. The car feels heavy to me, feels more like it's driving me than I'm driving it. So, since I haven't driven a new Mustang since 2005, I stopped at my old place of business and took a 2013 Mustang GT out for a ride.

The car feels lighter and quicker. It shifts better. The steering is solid and has better road feel than my Camaro. They run P-Zeros on these cars too, so the tires aren't a factor, but the Mustang feels more agile on the hairpins. The interior seems to be of better quality than my Camaro. In another post I'd previously stated that I thought my Camaro felt "delicate". The Mustang, on the contrary, feels like I could beat the living crap out of it and it would come back for more.

My Camaro has more visual appeal. It turns more heads than a Mustang would, unless I were to buy a Boss or GT500. But I'm not a "car show" guy. I'm a drag racer, and I like taking things up to 140 MPH when I feel like it. Not that the Camaro doesn't have the same ability, but the Mustang has a 3.73:1 ratio, and a solid axle that I can launch hard without fear of damage. The Boss comes with Trackey, which basically gives you factory electric exhaust cutouts, and programmable cam timing. Push-button lumpy cam on demand. Wow.

I'm still on the fence at this point, but shame on me for buying the Camaro without driving the Mustang first. The SS and GT are equal in price, but after road testing the GT, I left thinking that the Mustang has more bang for the buck. If I can make the numbers work, I just might make the jump. Tough call.

Just sharing my thoughts and impressions, so please keep the flames low.

i agree. Ive driven both and the 5.0 has that feeling that it loves the high rpms and has no problem taking the abuse. I didnt have that same feeling with the SS.

[MauriSSio]

Originally Posted by cbass

Sure. But you can change the final ratio on a ss to make the gearing shorter. If the factory made the gearing shorter on the SS, then it would have been faster with the LS3.

That insideline dyno is off in the woods. The coyote is a great performing motor, but those are the highest results I have seen for a stock coyote.

It's not the peak torque that I am looking at. It's the entire powerband.

you can make the gearing shorter but you lose MPH's in each gear. The high RPM capabilities of the 5.0 allows the best of both worlds: the torque multiplication that gearing would give you AAAND still allowing you to take it to a decent speed before shifting!

[SRT8Tech]

Originally Posted by assasinator

with tires a 2011/2012 gt500 approaches 10's. the 5.0 is not in the same planet.

Exactly.....

Holy chit....we agree on something for a change. LOL. Im not mad at ya...

[LOWDOWN]

Originally Posted by JimmyDeanSausage

you can SURE BET that it helped make it FAR EASIER TO LAUNCH.

Do you not understand that?

"On a dusty track"...

EASIER fer sure, dude!

[cbass]

Originally Posted by MauriSSio

you can make the gearing shorter but you lose MPH's in each gear. The high RPM capabilities of the 5.0 allows the best of both worlds: the torque multiplication that gearing would give you AAAND still allowing you to take it to a decent speed before shifting!

You are making it seem like a 7500-8000 rpm Honda or BMW.

LS3 Redline: 6,600 RPM
Coyote Redline: 7,000 RPM

400 RPM difference.

[stlrammer]

I'm from a retired GM family coming from a 2001 Z28, 2006 GTO and now the 2010 SS. I'm happy as a clam with my SS but think the 5.0 Mustang is an awesome car too. In 2011 you could get the stang in a mustard yellow metalic. That car was call ing out to me for sure but if I showed up in a Ford I wouldn't be invited back for the holidays.

[Rangore]

Good luck...get what you like and feel like driving. It's a lot of money to not be happy.

[FNBADAZ06]

Originally Posted by assasinator

with tires a 2011/2012 gt500 approaches 10's.

Really ??? Is there a Fast List or something comparable that shows these times ?

I've raced quite a few of these on the track and have never seen one get remotely close to even mid 11's on drag radials.

[JimmyDeanSausage]

So Inde isn't at 4400' elevation, or having a DA of 5000'+ doesn't make a high HP car easier to launch? Is that your assertion?

Have you ever actually been drag racing? When's your ZL1 show up?

Please, use your brain. They pulled 0.98 on the skidpad in the "sand" as you call it. Even if you figure that'd work out to 1.02 on a better surface, you're talking about a few percent difference in grip. While with the HP reduction caused by altitude, you're talking about around FIFTEEN PERCENT reduction in HP. Again, do you not understand how much easier that makes a 580 horse car to launch? Have you ever driven a 550+ horsepower car?

[ffrcobra_65]

Originally Posted by JimmyDeanSausage

So Inde isn't at 4400' elevation, or having a DA of 5000'+ doesn't make a high HP car easier to launch? Is that your assertion?

Have you ever actually been drag racing? When's your ZL1 show up?

Please, use your brain. They pulled 0.98 on the skidpad in the "sand" as you call it. Even if you figure that'd work out to 1.02 on a better surface, you're talking about a few percent difference in grip. While with the HP reduction caused by altitude, you're talking about around FIFTEEN PERCENT reduction in HP. Again, do you not understand how much easier that makes a 580 horse car to launch? Have you ever driven a 550+ horsepower car?

Lowdown will have you going in circles, I promise.

[8cd03gro]

Originally Posted by LOWDOWN

"On a dusty track"...

EASIER fer sure, dude!

You ignored the corrected et comment... why?

[SRT8Tech]

Originally Posted by FNBADAZ06

Really ??? Is there a Fast List or something comparable that shows these times ?

I've raced quite a few of these on the track and have never seen one get remotely close to even mid 11's on drag radials.

Here is one.

[tt335ci03cobra]

I actually wanted to point out altitude correction as up here in slc Utah, no zl1 will run a 12.9 stock nor will a 2013 gt500 run a 12.4 stock, (a zr1 went 12.5@115 here bone stock with a decent driver, 4300ft of altitude.

I sincerely hope the 13.1@113 run by automible magazine was uncorrected because that's about what a zl1 will run up here at 4300ft.

I know the gtr was able to turn about the same time as it does at sea level because it's turbo so the compressors make up for the thin air by spinning faster to keep the same oxygen count on the air/fuel side. The motor is down by the natural losses though so assuming the vq motor makes 320hp na, it's down about 12% of that which comes out to 38hp and tells part of why the car ran an 11.3~ instead of a 10.8 like the corrected numbers. That plus the surface was cold/dusty but awd puts power down well enough.

On a side; this fun fact about turbo's is one of the reasons I hope the next gen pony kings get turbo mills vs these sc mills. That plus the awesome top end and midrange, cooler inlet air temps etc etc etc. A big reason I went turbo vs 4.0 whipple on my 5.4 is the altitude I'm at.

Guys up here with "750whp" (corrected) whipples are much slower than my uncorrected 650whp 10psi tune; and they are running 20psi... My 16psi tune keeps liter bikes well at bay up here and I'm still on 91 octane with 16psi (850~whp). Also, turbos spread the power very flat because they dont experience parasitic drag. Compare my graph to most sc cars making 800whp and it's easy to see that the average hp from 4-6500rpms is why I can walk cars with "900+whp" especially at this altitude.



Ignore the 1st half of the graph because turbo cars don't feel load on a dyno until the mid range. I've seen 8psi on my truboost at just 2500rpms and that's easily enough for 650wtq and believe me, it pulls like a freight train even at 2500 in 6th gear after half a second of wot to spool the turbos.

Literally brake boosted, 80-120 in 5th gear is as fast as my buddies cammed c6 z on kill. (again altitude though, at sea level he'd walk me a little in a similar race as he'd be back up from 440whp uncorrected to 525~whp). In 6th, I've walked out on ss's and 5.0's in a similar style race. those trap 105 up here, srt8's run 14.0@103.


All that said; I hope I got a few of you on the band wagon for turbo 6th gen zl1/zr1/gt500's on the next go around.

Imagine a zl1 that on the just 8psi made 650hp from 5000-6200rpms. Ford could easily take the lightweight 5.0 coyote, stuff it with forged bits, and with just 10psi make the same or more power than the 5.8 sc mill makes at 15psi. Safety, reliability, less strain it's all something I hope to see especially since it'll make the cars much more consistent against turbo imports like the gtr and built Sti/Evo's when altitude comes into play. Gas mileage to but that's a story for another day.

A turbo zr1 would easily make 750hp with just 10psi on that ls9 mill. Probably from 5000-6750rpms no less. And again, gas mileage could increase because you could safely lean out the lower rpm fuel tables.