Tire pressure 30X9X15 HOOSIER RADIALS

HEADSUP113 · 03-21-2013, 02:08 PM

Sorry i should have given more info... 3350 lbs ladder bar... 700 hp... 9 inch rim.. 9.75 @ 138 mph footbrake only.. Wheelie monster loves to be on back wheels... Also ( i switched from 10.5 radial, i always ran 18 lbs in both 9 and 10.5 inch but they wrinkle a ton) thanks guys

Dave Ribeiro · 03-21-2013, 02:25 PM

Headsup113,

Somewhere between 18-25 lbs, depends on the track, weight of the car, size of motor , what kind of traction setup, width of rim , etc... A good place to start is 21-22 cold, ( grows 1-2 lbs when Hot ) and keep testing to see what works best ? There are lots of factors that effect the launch also ??? Good Luck ...

67 Post GS · 03-21-2013, 02:43 PM

I run about 22-23 cold. My car seems to like it.

HEADSUP113 · 03-21-2013, 03:28 PM

Sorry i should have given more info... 3350 lbs ladder bar... 700 hp... 9 inch rim.. 9.75 @ 138 mph footbrake only.. Wheelie monster loves to be on back wheels... Also ( i switched from 10.5 radial, i always ran 18 lbs in both 9 and 10.5 inch but they wrinkle a ton) thanks guys

Myron Piatek · 03-21-2013, 06:44 PM

I have a 3,540+ lb Stocker footbraking and running low 11's with 21 lbs cold in my Hoosier lightweights on 10" rims. But regardless of what you have, if it will fit, going to a wider rim should help maintain a flatter footprint and allow more air pressure with reduced wrinkle (longer sidewall life). Only downside to radials is that they are more sensitive to track conditions than bias ply slicks.

03-21-2013, 02:08 PM	#1
HEADSUP113 Junior Member Join Date: Dec 2010 Posts: 13 Likes: 0 Liked 0 Times in 0 Posts	Tire pressure 30X9X15 HOOSIER RADIALS Sorry i should have given more info... 3350 lbs ladder bar... 700 hp... 9 inch rim.. 9.75 @ 138 mph footbrake only.. Wheelie monster loves to be on back wheels... Also ( i switched from 10.5 radial, i always ran 18 lbs in both 9 and 10.5 inch but they wrinkle a ton) thanks guys Last edited by HEADSUP113; 03-21-2013 at 03:33 PM.

03-21-2013, 02:25 PM	#2
Dave Ribeiro VIP Member Join Date: Sep 2002 Location: Williamsburg, Va.---USA Posts: 1,827 Likes: 1,612 Liked 56 Times in 27 Posts	Re: Tire pressure 30X9X15 HOOSIER RADIALS Headsup113, Somewhere between 18-25 lbs, depends on the track, weight of the car, size of motor , what kind of traction setup, width of rim , etc... A good place to start is 21-22 cold, ( grows 1-2 lbs when Hot ) and keep testing to see what works best ? There are lots of factors that effect the launch also ??? Good Luck ... __________________ Dave Ribeiro 1033 STK

03-21-2013, 02:43 PM	#3
67 Post GS Junior Member Join Date: Aug 2011 Location: Buffalo New York Posts: 79 Likes: 9 Liked 48 Times in 10 Posts	Re: Tire pressure 30X9X15 HOOSIER RADIALS I run about 22-23 cold. My car seems to like it.

03-21-2013, 03:28 PM	#4
HEADSUP113 Junior Member Join Date: Dec 2010 Posts: 13 Likes: 0 Liked 0 Times in 0 Posts	Re: Tire pressure 30X9X15 HOOSIER RADIALS Sorry i should have given more info... 3350 lbs ladder bar... 700 hp... 9 inch rim.. 9.75 @ 138 mph footbrake only.. Wheelie monster loves to be on back wheels... Also ( i switched from 10.5 radial, i always ran 18 lbs in both 9 and 10.5 inch but they wrinkle a ton) thanks guys

03-21-2013, 06:44 PM	#5
Myron Piatek VIP Member Join Date: Nov 2001 Location: Florida Posts: 1,542 Likes: 34 Liked 138 Times in 51 Posts	Re: Tire pressure 30X9X15 HOOSIER RADIALS I have a 3,540+ lb Stocker footbraking and running low 11's with 21 lbs cold in my Hoosier lightweights on 10" rims. But regardless of what you have, if it will fit, going to a wider rim should help maintain a flatter footprint and allow more air pressure with reduced wrinkle (longer sidewall life). Only downside to radials is that they are more sensitive to track conditions than bias ply slicks.