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Took the car to the track to see how close I could get to the tested numbers (12.8-12.9 @ 110). I didn't plan on getting those numbers as 1) I'm not a professional driver, and 2) I doubt my track conditions weren't as good as the test track, track temp, track prep, etc. However, I was hoping to get fairly close as the tested cars were in purely stock form with the Pirelli 245-width tires, and I added the GT500 takeoffs which gives me a stickier 285-width rear tire. So I was hoping the wider/stickier tires would compensate a little for my lack of driving skils/seat time with the car.

I got 11 passes in here they are:

13.407 @ 107.68 w/ a 2.19 60ft, launched @ 1,500, 35 psi in tires
13.515 @ 108.40 w/ a 2.20, bumped launch to 2,500, 35 psi in tires
14.634 @ 105.12 w/ a 2.55, 2,500 launch, 30 psi, ZERO traction until part-way into 2nd, something on track I think
13.838 @ 108.93 w/ a 2.56, idle launch, 30 psi, bog on launch
13.453 @ 108.16 w/ a 2.21, 1,500 launch, 30 psi
13.887 @ 107.39 w/ a 2.56, 1,500 launch, 26 psi
13.566 @ 106.56 w/ a 2.23, 1,500 launch, 26 psi
13.486 @ 107.08 w/ a 2.18, 1,500 launch, 35 psi
13.680 @ 105.38 w/ a 2.13, 1,500 launch, 35 psi, missed 4th, duh right?
13.401 @ 107.15 w/ a 2.11, 1,500 launch, 35 psi
13.385 @ 106.89 w/ a 2.12, 1,500 launch, 35 psi

Overall I'm happy, the 60fts in the 2.1's (even if just barely, haha) I'll take, and all the passes (without a driver screw-up) with a 1,500 launch and 35 psi are 13.48 or lower. I think that I should drop some time when I get some taller tires, as I run out of 4th gear 2-3 car lengths before the traps. The first two and last two passes I quickly shifted to 5th, and everything in between I tried to stretch it out but hit the rev limiter just before the traps. So I'm hoping with some taller/stickier tires, and some more seat time, I might flirt with the 12s.
 

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Yeah, your 60 ft times are killin' you. With a few chassis mods and some sticky tires (something about 28" tall) you'll be in the mid 12's no problem.
 

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Discussion Starter #3
Yeah, your 60 ft times are killin' you. With a few chassis mods and some sticky tires (something about 28" tall) you'll be in the mid 12's no problem.
Yeah, that's what I'm hoping.
 

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Increase your rpm's , lower your psi's a lot .....
That will help you get you 60 feets under 2.0 ... Then you will get your 12's ...
 

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Increase your rpm's , lower your psi's a lot .....
That will help you get you 60 feets under 2.0 ... Then you will get your 12's ...
I disagree. On street tires, there is really not much point in lowering PSI a lot. The sidewalls don't bunch up like a radial tire does, and you'll just get less contact patch. I got a 12.75 with 34psi and a tuner. Brembo wheels/tires (255 width).
 

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Is a totally factory stock 5.0 GT with 3.73's and MT capable of high 12's ? Growing up with 60's muscle cars 12's was the holy grail for a street car .
 
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Is a totally factory stock 5.0 GT with 3.73's and MT capable of high 12's ? Growing up with 60's muscle cars 12's was the holy grail for a street car .
At the Spring 5.0 shootout at MIR there was a 2012 5.0 with 3.55 gears and temp tags running 12.4's consistently.
 

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I disagree. On street tires, there is really not much point in lowering PSI a lot. The sidewalls don't bunch up like a radial tire does, and you'll just get less contact patch. I got a 12.75 with 34psi and a tuner. Brembo wheels/tires (255 width).
I am hoping that you made a mistake when talking about radials as the stock tires are radials if I am not mistaken. And yes, it still does help some to lower your tire pressure. Now you can't go too low.
 

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Is a totally factory stock 5.0 GT with 3.73's and MT capable of high 12's ? Growing up with 60's muscle cars 12's was the holy grail for a street car .
Ain't that the truth, I tell a lot of the younger guys that same thing. Back in the day, if you had 300 hp you had something, nowadays if you don't have 5 or 600 you ain't nobody. A 600 hp beer can... times have changed.
 

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Thanks for sharing your results. Man, 11 passes in one night is a lot. I have made a total of 9 passes with mine and that was two times at the track (5 & 4). The first time I had so much wheel hop it was unreal. For the second time at the track I added J&M lower control arms and the Barton shifting bracket. On all of my passes I left at 1500-2000 rpm's letting the clutch out slowly and slowly presses the throttle to the floor. I power shifted into second gear to once again experience excessive wheel hop. I had to back out of the throttle before shifting to third gear. I was hoping the lca's would do a better job controlling the wheel hop than that. I made three more passes with my best one was 60 ft. 2.066, 13.340 e.t. and 109.53 mph. I was disappointed not to get into the 12's. Like you, I hit the rev limiter a few car lengths from the finish line. The Barton shifting bracket did not impress me either. In fact I just had it taken out. I may try the drag strip again in the Fall when the temps get cooler.
 

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Not bad, but you can do better! With my cheap 275 Sumitomo tires, CAI and Bama93 tune I did a 12.92 @ 111.26MPH / 2.10 60' time. 75 degrees that day @ about 200' above sea level.

Also, the tune will raise your rev limiter to about 7300. I still shift 1-3 @ 7K, but the extra 300RPM gives me enough to get across the traps in 4th.
 

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Took the car to the track to see how close I could get to the tested numbers (12.8-12.9 @ 110). I didn't plan on getting those numbers as 1) I'm not a professional driver, and 2) I doubt my track conditions weren't as good as the test track, track temp, track prep, etc. However, I was hoping to get fairly close as the tested cars were in purely stock form with the Pirelli 245-width tires, and I added the GT500 takeoffs which gives me a stickier 285-width rear tire. So I was hoping the wider/stickier tires would compensate a little for my lack of driving skils/seat time with the car.

I got 11 passes in here they are:

13.407 @ 107.68 w/ a 2.19 60ft, launched @ 1,500, 35 psi in tires
13.515 @ 108.40 w/ a 2.20, bumped launch to 2,500, 35 psi in tires
14.634 @ 105.12 w/ a 2.55, 2,500 launch, 30 psi, ZERO traction until part-way into 2nd, something on track I think
13.838 @ 108.93 w/ a 2.56, idle launch, 30 psi, bog on launch
13.453 @ 108.16 w/ a 2.21, 1,500 launch, 30 psi
13.887 @ 107.39 w/ a 2.56, 1,500 launch, 26 psi
13.566 @ 106.56 w/ a 2.23, 1,500 launch, 26 psi
13.486 @ 107.08 w/ a 2.18, 1,500 launch, 35 psi
13.680 @ 105.38 w/ a 2.13, 1,500 launch, 35 psi, missed 4th, duh right?
13.401 @ 107.15 w/ a 2.11, 1,500 launch, 35 psi
13.385 @ 106.89 w/ a 2.12, 1,500 launch, 35 psi

Overall I'm happy, the 60fts in the 2.1's (even if just barely, haha) I'll take, and all the passes (without a driver screw-up) with a 1,500 launch and 35 psi are 13.48 or lower. I think that I should drop some time when I get some taller tires, as I run out of 4th gear 2-3 car lengths before the traps. The first two and last two passes I quickly shifted to 5th, and everything in between I tried to stretch it out but hit the rev limiter just before the traps. So I'm hoping with some taller/stickier tires, and some more seat time, I might flirt with the 12s.

Not bad man. I'd say 28psi, 3-4000rpms, slip the clutch, and you'd probably get a 1.99 which should put you right at that magical 12.999 mark.

Of course, if I had my way, I'd get you into our tuner/CAI combo and rear suspension to drop you deep into the 12s. :D

2011 Ford Mustang 5.0L Coyote SCT/AIRRAID MXP Tuner Cold Air Power Package - UPR Products

2011 Ford Mustang GT V6 Chrome Moly Street Upper & Lower Control Arm Package - UPR Products

Which gear ratio does your car have?
 

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I made it to the strip for my first time tonight, here is my best run: r/t .356, 60ft 2.24, 1/8 8.832, mph 82.77, 1/4 13.396, mph 109.28. I was hoping for better but still not bad seeing as this is my first mt car.
 

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Discussion Starter #14
Increase your rpm's , lower your psi's a lot .....That will help you get you 60 feets under 2.0 ... Then you will get your 12's ...
Low pressure in a street tire doesn't provide the same gains as in a drag radial or slick. I ran a couple passes at 30 psi and a couple at 26 psi launching at 1,500 rpms and I had less traction than when I launched at 35 psi at the same rpm, increasing the pressure at the lower pressure would have just made it worse.

Thanks for sharing your results. Man, 11 passes in one night is a lot. I have made a total of 9 passes with mine and that was two times at the track (5 & 4). The first time I had so much wheel hop it was unreal. For the second time at the track I added J&M lower control arms and the Barton shifting bracket. On all of my passes I left at 1500-2000 rpm's letting the clutch out slowly and slowly presses the throttle to the floor. I power shifted into second gear to once again experience excessive wheel hop. I had to back out of the throttle before shifting to third gear. I was hoping the lca's would do a better job controlling the wheel hop than that. I made three more passes with my best one was 60 ft. 2.066, 13.340 e.t. and 109.53 mph. I was disappointed not to get into the 12's. Like you, I hit the rev limiter a few car lengths from the finish line. The Barton shifting bracket did not impress me either. In fact I just had it taken out. I may try the drag strip again in the Fall when the temps get cooler.
I was able to get 11 passes in easily b/c my track does their T/T days on Sunday morning/afternoons, so I was there between four and five hours. It makes for a nice relaxed tuning pace. The down side being the hotter temps, which probably is another reason for the times not being where I wanted them, it was pretty hot that day. On a side note, I can PM you my mailing address if you're looking to offload that Barton bracket, lol.

Not bad man. I'd say 28psi, 3-4000rpms, slip the clutch, and you'd probably get a 1.99 which should put you right at that magical 12.999 mark.

Of course, if I had my way, I'd get you into our tuner/CAI combo and rear suspension to drop you deep into the 12s. :D

2011 Ford Mustang 5.0L Coyote SCT/AIRRAID MXP Tuner Cold Air Power Package - UPR Products

2011 Ford Mustang GT V6 Chrome Moly Street Upper & Lower Control Arm Package - UPR Products

Which gear ratio does your car have?
I have the 3.73's. Didn't think about slipping the clutch, not sure about the 28 psi due to experiencing less traction with 30 and 26 than with 35, but maybe less of a shock from the clutch will make it work, I'll have try it when I go down again at the end of July. Don't worry, I'm already on the UPR bandwagon :D, I've already got these waiting for install (along with subframe connectors):

2005-2011 Ford Mustang GT V6 Solid Urethane Lower Control Arms - UPR Products

Once those are in I'll be contacting you guys to order these:

2005-2010 Ford Mustang Strange 10 Way Adjustable Strut S6003LM - UPR Products

2005-2011 Ford Mustang Strange 10 Way Adjustable Shock S6002LM - UPR Products

I made it to the strip for my first time tonight, here is my best run: r/t .356, 60ft 2.24, 1/8 8.832, mph 82.77, 1/4 13.396, mph 109.28. I was hoping for better but still not bad seeing as this is my first mt car.
That pretty good for being your first MT car, I've been driving stick for 12+ years and my best run is only .01 faster than that :bigthumbsup. Keep at it, the more seat time you get, the better off you'll be.
 
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