M/T Drag Radial tire pressure?

DK832

New Member

Apr 11, 2006

291

0

0

Copenhagen, DK

Jul 11, 2007

#1

• Jul 11, 2007

• #1

So I'm finally going racing on my first ever set of drag radials.
It's a pair of M/T Drag Radials in 275/50/15 on a 69 Mustang Hardtop. What would be the right tire pressure for them on the track?

Info if it matters: I have 5-leaf rear springs and Competition Engineering Slide-a-Links, 3.70 gears.

 

brianj5600

Active Member

Sep 19, 2003

1,964

2

39

Middle TN

www.cardomain.com

Jul 11, 2007

#2

• Jul 11, 2007

• #2

http://www.mickeythompsontires.com/tech.php?bulletin=s7 It depends on the car and track. I have a friend that runs over 20psi w/o spinning. It is a fox body that runs high 7's in the 1/8. His theory is more air = less rolling resistance.

 

Stanger007

Founding Member

Sep 26, 2001

2,015

2

46

44

Baton Rouge, LA

www.72mach1.com

Jul 11, 2007

#3

• Jul 11, 2007

• #3

(I run Nitto drag radials - friends with the M/Ts use this same logic)

I'd start at 20 or 22 and go down in 2psi increments until you get to around 16 - see how it hooks.

I usually end up at a slightly different PSI each time out at the track depending on how it is prepped and what the weather is doing.

Wes

 

DK832

New Member

Apr 11, 2006

291

0

0

Copenhagen, DK

Jul 12, 2007

#4

• Jul 12, 2007

• #4

Thanks, the right place to ask as usual!

 

classic boost

Founding Member

Feb 3, 1999

709

0

0

canton, oh

www.members.tripod.com

Jul 16, 2007

#5

• Jul 16, 2007

• #5

on that same size tire, i got a 1.58 60' @ 16psi