Need some track advice

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03gtmustang

New Member

May 26, 2003

923

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Northern Va

Jul 15, 2004

#1

• Jul 15, 2004

• #1

Im going to the track this Saturday for the first time ever and need some advice. I have the 275 nitto dr's what should I drop my psi to? For all you auto guys, how should I launch and what is your tranny shifting at? Ill have my Diablo Predator with me to do a little test and tuning. Any advice from people with Predators would be awesome too. Thanks a lot.

 

cmb91LX

New Member

Apr 20, 2004

432

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Memphis

Jul 15, 2004

#2

• Jul 15, 2004

• #2

I am not an auto guy BUT, I set PSI to @16 and burn em for a good 7-8 seconds until they are blowing white smoke. I launch @4-4500.

 

Premium Speed

New Member

Apr 22, 2003

1,006

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0

Houston, Texas

Jul 15, 2004

#3

• Jul 15, 2004

• #3

14-18 psi

just put air back in them before you get on the freeway.....do a 10 second burnout before your first pass to get the hard layer off

good luck

 

BAFMustangGT

New Member

Jul 3, 2004

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Rochester, NY

Jul 15, 2004

#4

• Jul 15, 2004

• #4

Yea...just dont drop it...or you will be towed home. Make sure you slip..slipping is the best.

 

Premium Speed

New Member

Apr 22, 2003

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Houston, Texas

Jul 15, 2004

#5

• Jul 15, 2004

• #5

BAFMustangGT said:

Yea...just dont drop it...or you will be towed home. Make sure you slip..slipping is the best.

Click to expand...

how do you "drop" an auto?

 

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03gtmustang

New Member

May 26, 2003

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Northern Va

Jul 15, 2004

#6

• Jul 15, 2004

• #6

Premium Speed said:

how do you "drop" an auto?

Click to expand...

Rev up and drop it into drive? Thanks for the advice on the psi. Who can give me advice on how to launch my AUTO and where I should shift at?

 

Premium Speed

New Member

Apr 22, 2003

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Houston, Texas

Jul 15, 2004

#7

• Jul 15, 2004

• #7

03gtmustang said:

Rev up and drop it into drive? Thanks for the advice on the psi. Who can give me advice on how to launch my AUTO and where I should shift at?

Click to expand...

i used to do that in my truck.....i called it "the parts breaker special"...lol

i would hold the brake pedal and stall it up as high as possible without powerbrakeing....on the 3rd yellow, let off the brake and floor it at the same time....it "should" hook, if not, try stalling it lower...just experiment until you find what works....all cars/tracks hook different

keep a log book and remember what rpm you left at and where you shifted at and what time you ran.....this was a good thing for me

edit - shift as close to redline without hitting the rev-limiter....IMO

 

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03gtmustang

New Member

May 26, 2003

923

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Northern Va

Jul 15, 2004

#8

• Jul 15, 2004

• #8

Premium Speed said:

i used to do that in my truck.....i called it "the parts breaker special"...lol

i would hold the brake pedal and stall it up as high as possible without powerbrakeing....on the 3rd yellow, let off the brake and floor it at the same time....it "should" hook, if not, try stalling it lower...just experiment until you find what works....all cars/tracks hook different

keep a log book and remember what rpm you left at and where you shifted at and what time you ran.....this was a good thing for me

edit - shift as close to redline without hitting the rev-limiter....IMO

Click to expand...

Thanks man.

Hey BAFMustangGT this is a good example of the info Im looking for, maybe you can learn something by it.

 

H

huesmann

Founding Member

Jun 21, 2002

332

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16

Jul 15, 2004

#9

• Jul 15, 2004

• #9

"track"==dragstrip?

 

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03gtmustang

New Member

May 26, 2003

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Northern Va

Jul 17, 2004

#10

• Jul 17, 2004

• #10

Im off to the strip this morning, wish me luck

 

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03gtmustang

New Member

May 26, 2003

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Northern Va

Jul 17, 2004

#11

• Jul 17, 2004

• #11

Well I ran a 13.7. The slip is in my car so Im not positive about the 60' or mph. But it was something around a 2.1 or 2.2 at 100 or 101mph. I expected better with all my mods, but I guess my damn auto tranny is slowin me down. I didnt have any traction problems at all so I think my 60' time should be better then 2.2 with gears and dr's. I had about half a tank of gas and my engine was running pretty warm. What do you guys think?

 

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03gtmustang

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May 26, 2003

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Northern Va

Jul 17, 2004

#12

• Jul 17, 2004

• #12

Heres my slip.

 

nickthegenius

Active Member

Dec 23, 2002

1,631

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38

Elwood, IN

Jul 18, 2004

#13

• Jul 18, 2004

• #13

2.2 on drag radials? That seems awfully high. Maybe you need to rev higher before you lauch Is it bogging off the line? Is your T/C off?

 

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03gtmustang

New Member

May 26, 2003

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Northern Va

Jul 18, 2004

#14

• Jul 18, 2004

• #14

I have an auto so I cant rev any higher then 1500 or else I start spinning. T/C is off.

 

gtrackd02

New Member

Aug 2, 2003

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st clair shores

Jul 18, 2004

#15

• Jul 18, 2004

• #15

03gtmustang said:

I have an auto so I cant rev any higher then 1500 or else I start spinning. T/C is off.

Click to expand...

you need to get a stall converter in there if you wanna run it seriously...
But thats just my opinion as i have a 5spd and dont know too much about autos..
I can tell ya my freinds 02 gt auto has less mods than yours, but with his 3400rpm stall he is able to run 13.25s at around 101-102 with a 1.75 60 foot with 275 40 17 BFG d/r's

I think his other mods are: off road h-pipe i forget wich brand? Flows that are dumped under the car, 4:10 gear, diablosprt chip... and he removes whatever weight he can before he runs..

 

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03gtmustang

New Member

May 26, 2003

923

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Northern Va

Jul 18, 2004

#16

• Jul 18, 2004

• #16

gtrackd02 said:

you need to get a stall converter in there if you wanna run it seriously...
But thats just my opinion as i have a 5spd and dont know too much about autos..
I can tell ya my freinds 02 gt auto has less mods than yours, but with his 3400rpm stall he is able to run 13.25s at around 101-102 with a 1.75 60 foot with 275 40 17 BFG d/r's

I think his other mods are: off road h-pipe i forget wich brand? Flows that are dumped under the car, 4:10 gear, diablosprt chip... and he removes whatever weight he can before he runs..

Click to expand...

Yeah, Ive been thinking about a 2500 stall converter. Does anyone know what the stock stall is?