Tire pressure for track

Shiroelex

There's nothing worse than aut

Founding Member

Aug 23, 2001

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Westland, MI

Apr 4, 2008

#1

• Apr 4, 2008

• #1

Opening day is tomorrow at my track, and I was wondering if I should drop the pressure in my BFG DR's at all. I'd be doing this once I got to the track. I know it's not something you do on street tires, but I figured I'd ask, since I have drag radials.

 

CobraRed_96_GT

Active Member

May 20, 2006

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39

UCSD/La Jolla

Apr 4, 2008

#2

• Apr 4, 2008

• #2

I brought it down to about 17psi for my fastest run (KDW II'S). It's nothing standard, the lowest you can get away with while not bogging, or as low as you like if it's an auto

 

Winters98GT

Whoop...whoop-whoop-whoop-whoop...GANGNAM STYLE!!!

Founding Member

Nov 29, 1999

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H Town

Apr 4, 2008

#3

• Apr 4, 2008

• #3

I run my bfg drag radials at 11-13psi. Im sure you want to run more than that with an auto. A little bit of wheel spin is much better than bogging.

I would suggest around 16 to start off with.

 

MyBloodRunsBlue

New Member

Feb 1, 2007

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Apr 5, 2008

#4

• Apr 5, 2008

• #4

i run 15 psi in my mickey thompson et streets

 

Tim2002GT

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Apr 10, 2002

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29

Tulsa, Oklahoma

Apr 5, 2008

#5

• Apr 5, 2008

• #5

FWIW, I run my Nitto dr's at 18 psi. They roll over a couple of times and hook, leaving between 35-4000 rpm.

 

jivepepper

Founding Member

Jun 19, 2002

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18

Under a Sombrero. in WV.

Apr 5, 2008

#6

• Apr 5, 2008

• #6

I ran 17 lb my dr's

 

Shiroelex

There's nothing worse than aut

Founding Member

Aug 23, 2001

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Westland, MI

Apr 5, 2008

#7

• Apr 5, 2008

• #7

Thanks guys. I'm gonna try 15lbs and work around there. It's a 5 speed with a piece of crap clutch.

 

deftsound

Please ask me how much my supercharger cost

Apr 6, 2004

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39

Texas City TX

Apr 5, 2008

#8

• Apr 5, 2008

• #8

I ran a 13.9 when my car was stock after i lowered the pressure on my street tires to about 25

 

MyBloodRunsBlue

New Member

Feb 1, 2007

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Apr 5, 2008

#9

• Apr 5, 2008

• #9

when i ran my 12.2 i was @ 17 lbs

 

SonicStangGT

Active Member

Mar 18, 2008

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28

King, North Carolina

Apr 6, 2008

#10

• Apr 6, 2008

• #10

Yeah I also think anywhere between 13-17 is the best. I have had my best times at 13. But every car is different.

 

Shiroelex

There's nothing worse than aut

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Aug 23, 2001

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Westland, MI

Apr 6, 2008

#11

• Apr 6, 2008

• #11

Well, I made 6 runs yesterday. I started at 15psi and it was ok, but once I dropped it down to 11ish, they really bit. With 15psi, I would get a little spin in 2nd and a chirp in 3rd, but at 11psi, it was a chirp in 2nd and 3rd bit.

 

Tim2002GT

Founding Member

Apr 10, 2002

635

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Tulsa, Oklahoma

Apr 6, 2008

#12

• Apr 6, 2008

• #12

Shiroelex said:

Well, I made 6 runs yesterday. I started at 15psi and it was ok, but once I dropped it down to 11ish, they really bit. With 15psi, I would get a little spin in 2nd and a chirp in 3rd, but at 11psi, it was a chirp in 2nd and 3rd bit.

Click to expand...

Ahhh........you can't leave us hanging like that! What kind of times did you pull?

 

Shiroelex

There's nothing worse than aut

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Aug 23, 2001

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Westland, MI

Apr 7, 2008

#13

• Apr 7, 2008

• #13

Tim2002GT said:

Ahhh........you can't leave us hanging like that! What kind of times did you pull?

Click to expand...

http://forums.stangnet.com/showthread.php?t=744955

I made another thread about it. My best was 13.6@101, and there is a TON of room for improvement! I'm going back Wednesday to try some different techniques. I'm not sure when to shift, though. I'm gonna try 5500 the first run and see how it goes.