GT Performance Mods 2005+ Mustang GT Performance and Technical Information

Just left the track...

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Old 2/5/12, 10:53 AM
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Just left the track...

A little disappointed, first time at the track. Ran a 15.17 first missing 2nd. Then a 14.76. Thought I'd be like a second faster. Cams CAI axelback and 93r tune on street tires. Is that ok or am I as slow as I feel lol
Old 2/5/12, 11:13 AM
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what was your 60ft & 1000ft times. also what gears you running?
Old 2/5/12, 11:16 AM
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Originally Posted by skunk21
what was your 60ft & 1000ft times. also what gears you running?
60ft was 2.370 1000ft was 12.453. That was for the 14.76. Stock gears 3.31. Got beat by a ram 1500 lmao
Old 2/5/12, 11:33 AM
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Originally Posted by muscledom
60ft was 2.370 1000ft was 12.453. That was for the 14.76. Stock gears 3.31. Got beat by a ram 1500 lmao
you need to drop that 60ft down. some more practice will get the time down for sure and good set of drag radials. a set of gears would help but what rpm you shifting at?
Old 2/5/12, 11:40 AM
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Originally Posted by skunk21

you need to drop that 60ft down. some more practice will get the time down for sure and good set of drag radials. a set of gears would help but what rpm you shifting at?
Yea that's what my buds said. Launching at 3 k shifting at 6600
Old 2/5/12, 12:06 PM
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Originally Posted by muscledom
Yea that's what my buds said. Launching at 3 k shifting at 6600
yeah. your are not far of at all you need to get under the 2 mark for 60ft. and you will hit the 13s. a 2.1 60ft would have been close, probally a high 13. a set of gears can drop your elapsed time by about a quarter.
Old 2/5/12, 12:17 PM
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Yea they're definitely on the build list. Thinking 373s
Old 2/5/12, 05:58 PM
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Have you ever run a car down a track b4?
I ran a 14.1 in a 04 Nissan sentra SER spec v... What were the track conditions like?
Old 2/5/12, 08:29 PM
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getting a quick time is a lot harder than it looks- launching smooth is tough without breaking the tires loose, but I found shifting a bit lower helps too- maybe from reduced tirespin at 2nd/3rd.

my best to date was hot engine, right off the highway drive in 13.78 @ 103, 100% stock, 1/4 tank of gas, no passenger, launching at 2500, shifting at 5000.
Ive since added a fang shaker hood(heavy), and 18x9 rear wheels- wheels immediately dropped 60 foot times by .1, but added weight slowed the et...havent beat 14.1 @99 with the larger wheels, even with a 2.0 60 foot...
I'm thinking about some 17" drag radials on the original wheels, bet that will drop it back to 13.5 or better...with drag radials you can launch hard, but get too greedy with a stickshift and risk things like axles, gears, mounts...

suggest (strongly as I can say) that before going back, change to royalpurple synchromax- you will not believe the difference in shifting, but moreso, it might save your tranny... I ran probably 10 runs powershifting on the limiter and then found these transmissions dont like it, grabbing second it didnt go, felt like hitting a brickwall with the shifter, but clutching so fast already started to release and ground it bad...at 6k, any grind sounds more than just bad. the tranny would lock out of second often in normal driving, and no way would it shift into second at >4500 without banging the shifter several times. I put up with this for most of a year, someone said before repairing/replacing the tranny, try r-p... what the heck, tried it out. ran the drained oil thru a filter/magnet, nothing ugly about the oil, figured it was going to be a waste of time- BUT, immediatetely third gear 'falls' into place, and within a hour of driving, second was better than new- back at the strip flogging the crap out of it shifting at 6k again, and actually shifting SMOOTH. I am 1000000% sold on that synchromax for the 3650- before my 09 ever goes down the track, guarantee it will get that oil first. dunno whats in that oil, but the synchronizers in the 3650 love it.

Last edited by ford4v429; 2/5/12 at 08:31 PM.
Old 2/5/12, 09:56 PM
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I was about to flush my tranny an put mobile 1 synthetic in there so what is this stuff your talking about? Where do I get it?
Old 2/5/12, 11:50 PM
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He is talking about royal purple, nothing but the best!! What weight he used I don't know
Old 2/6/12, 07:35 AM
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Originally Posted by silversky545
Have you ever run a car down a track b4?
I ran a 14.1 in a 04 Nissan sentra SER spec v... What were the track conditions like?
Track virgin. Conditions were beautiful
Old 2/6/12, 07:53 AM
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Originally Posted by ford4v429
getting a quick time is a lot harder than it looks- launching smooth is tough without breaking the tires loose, but I found shifting a bit lower helps too- maybe from reduced tirespin at 2nd/3rd.

my best to date was hot engine, right off the highway drive in 13.78 @ 103, 100% stock, 1/4 tank of gas, no passenger, launching at 2500, shifting at 5000.
Ive since added a fang shaker hood(heavy), and 18x9 rear wheels- wheels immediately dropped 60 foot times by .1, but added weight slowed the et...havent beat 14.1 @99 with the larger wheels, even with a 2.0 60 foot...
I'm thinking about some 17" drag radials on the original wheels, bet that will drop it back to 13.5 or better...with drag radials you can launch hard, but get too greedy with a stickshift and risk things like axles, gears, mounts...

suggest (strongly as I can say) that before going back, change to royalpurple synchromax- you will not believe the difference in shifting, but moreso, it might save your tranny... I ran probably 10 runs powershifting on the limiter and then found these transmissions dont like it, grabbing second it didnt go, felt like hitting a brickwall with the shifter, but clutching so fast already started to release and ground it bad...at 6k, any grind sounds more than just bad. the tranny would lock out of second often in normal driving, and no way would it shift into second at >4500 without banging the shifter several times. I put up with this for most of a year, someone said before repairing/replacing the tranny, try r-p... what the heck, tried it out. ran the drained oil thru a filter/magnet, nothing ugly about the oil, figured it was going to be a waste of time- BUT, immediatetely third gear 'falls' into place, and within a hour of driving, second was better than new- back at the strip flogging the crap out of it shifting at 6k again, and actually shifting SMOOTH. I am 1000000% sold on that synchromax for the 3650- before my 09 ever goes down the track, guarantee it will get that oil first. dunno whats in that oil, but the synchronizers in the 3650 love it.
Yea man ur not kidding. Same happens to me with 2nd, I make it a point to try to rip the shifter out of the car when shifting in to 2nd at high rpm. Doesn't lock out but it def give the most resistance. What exact rp did you use? Btw I have 62k on mine...
Old 2/6/12, 08:26 AM
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Originally Posted by muscledom
60ft was 2.370 1000ft was 12.453. That was for the 14.76. Stock gears 3.31. Got beat by a ram 1500 lmao
Whatever "driver mod" you need to make, get that 60' down to a respectable time! It should be more like 1.9 and that would net you roughly .8 at the end of the track. Maybe you'll never see a 1.9 with your current setup, but it's GOT to be better than 2.3!

Try launching at a lower rpm. Work with it as you make more passes. Take off from idle even... Anything to make YOU more comfortable with the reaction of the car so that you'll find it's best spot for a decent take off. Maybe just use different launch rpm until you get the one with least wheelspin and best end result. You don't wanna bog it and lose time any more than you wanna spin and lose time.
Old 2/6/12, 08:38 AM
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Originally Posted by It'llrun
Whatever "driver mod" you need to make, get that 60' down to a respectable time! It should be more like 1.9 and that would net you roughly .8 at the end of the track. Maybe you'll never see a 1.9 with your current setup, but it's GOT to be better than 2.3!

Try launching at a lower rpm. Work with it as you make more passes. Take off from idle even... Anything to make YOU more comfortable with the reaction of the car so that you'll find it's best spot for a decent take off. Maybe just use different launch rpm until you get the one with least wheelspin and best end result. You don't wanna bog it and lose time any more than you wanna spin and lose time.
come of at idle .


muscledom you didn't go through the water box with street tires did you? just curious. I wouldn't over think it, get some better traction. work on your reaction time and don't get all nerved up. It is going to take a few runs once you get a better set of tires ( I would get a set of spare wheels even) to figure out the launch then you can work on your RT and drop your 60ft. A set of gears will help like stated with your overall e.t. .
Old 2/6/12, 10:07 AM
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Originally Posted by skunk21

come of at idle .

muscledom you didn't go through the water box with street tires did you? just curious. I wouldn't over think it, get some better traction. work on your reaction time and don't get all nerved up. It is going to take a few runs once you get a better set of tires ( I would get a set of spare wheels even) to figure out the launch then you can work on your RT and drop your 60ft. A set of gears will help like stated with your overall e.t. .
Nah no water. I'm running nitto 555s 285/40-18. But yea I'm gonna play with the launch rpm and shift rpm. Gotta get it on the dyno to see where peak hp is at... Thanks for the advice man I appreciate it
Old 2/6/12, 11:19 AM
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Drop tire pressure... Take out seats, spare tire, wood/carpet in back seat and front sway bar....

That's what I did w all my other cars... I'm not taking this car to the track until I get more suspension mods such as LCAs, and better clutch and flywheel. I'm bad about breaking stuff lol
Old 2/6/12, 12:52 PM
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"Cams, CAI, axelback, and 93r tune on street tires..."

You might have a tune issue.

- Did you turn TC off?

- What was your trap speed?

- What was the track DA?
Old 2/6/12, 12:56 PM
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Originally Posted by 69Mach1-409
"Cams, CAI, axelback, and 93r tune on street tires..."

You might have a tune issue.

- Did you turn TC off?

- What was your trap speed?

- What was the track DA?
Yea traction control was off. Had to be reminded due to nerves lol. Gonna have it dynoed sooner than later. Is the trap speed and the track DA on the time slip?
Old 2/6/12, 12:58 PM
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Yeah.. been there and done that. Feel like a smacked *** every time I do it!

Trap would be, I doubt the DA would be.


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