recomended presures in radial slicks

rallye bob · 06-19-2009, 05:14 AM

I agree. 30X9 Hoosier (CO7) radials 19-22 lb 3500 lb foot brake. Depends on track

1320racer · 06-19-2009, 07:58 AM

Been running Hoosier's 30 x 10.5 radial slick on my nose heavy 3880 lb. BB Chevelle since the 2000 season using 3 pairs a season, pulling them off at 75 passes and typically aired to 18 psi.

Have gone 100+ passes on a set and I've run them with as much as 20 psi.

Have gone a best of 1.28 60 foot and 1.36 60 foot breaking the beam with the back tires.

My rule of thumb is to start at 5 psi more than what you ran with bias slicks.

gmonde · 06-19-2009, 07:50 PM

thanks for the advice ,,getting ready for the divisonal at lebannon valley see you there thanks gmonde

ss wannabee · 06-23-2009, 08:16 AM

You guys make an "adjustment" when the air become hot and soupy like in summer?

Marvin Robinson · 06-23-2009, 11:30 PM

I'm running the liteweight Hoosiers, 92.5 X 9.00 hard compound @ 21psi on F/SA 71 Olds 442. I have 20 psi in rt airbag, 5 psi in left. Seems to hook OK, but I'm working on the power end of the equation right now.

I would like to know what you have for the A-Arms and links in the front suspension, I need my fronts to hang straight like yours, not splayed from camber change.

Thanx,

Starvin Marvin 3188

Bob Bender · 06-24-2009, 10:58 AM

36 PSI in my 4400 lb. stocker

treessavoy · 06-24-2009, 04:02 PM

I bought my 9" radials from Hoosier at the track and their rep's said to start at 21lbs for my 3450lb Ply.

Footbrake · 06-28-2009, 04:03 AM

Not radials but maybe you guys can help me out here. I run 26x10 Hoosier slicks. I had my 7" cutlass rallys widened to 9" for a better footprint. Now I don't know where to go as far as air pressure. My 9" slicks on 7" rims liked about 18lbs, but these don't. It hooks the best at about 12.5 lbs. Am I going in the right direction or should I try a lot more air in these slicks? Car with me in it is 3960lbs.

06-19-2009, 05:14 AM	#1
rallye bob Member Join Date: Sep 2006 Location: Genoa, Illinois Posts: 489 Likes: 9 Liked 6 Times in 4 Posts	Re: recomended presures in radial slicks I agree. 30X9 Hoosier (CO7) radials 19-22 lb 3500 lb foot brake. Depends on track

06-19-2009, 07:58 AM	#2
1320racer VIP Member Join Date: Nov 2007 Location: New Jersey Posts: 2,628 Likes: 160 Liked 759 Times in 379 Posts	Re: recomended presures in radial slicks Been running Hoosier's 30 x 10.5 radial slick on my nose heavy 3880 lb. BB Chevelle since the 2000 season using 3 pairs a season, pulling them off at 75 passes and typically aired to 18 psi. Have gone 100+ passes on a set and I've run them with as much as 20 psi. Have gone a best of 1.28 60 foot and 1.36 60 foot breaking the beam with the back tires. My rule of thumb is to start at 5 psi more than what you ran with bias slicks. Last edited by 1320racer; 06-19-2009 at 08:57 AM.

06-19-2009, 07:50 PM	#3
gmonde Senior Member Join Date: Nov 2007 Posts: 615 Likes: 56 Liked 165 Times in 59 Posts	Re: recomended presures in radial slicks thanks for the advice ,,getting ready for the divisonal at lebannon valley see you there thanks gmonde

06-23-2009, 08:16 AM	#4
ss wannabee Senior Member Join Date: Jun 2005 Posts: 663 Likes: 0 Liked 7 Times in 7 Posts	Re: recomended presures in radial slicks You guys make an "adjustment" when the air become hot and soupy like in summer?

06-23-2009, 11:30 PM	#5
Marvin Robinson Member Join Date: Jun 2005 Location: Gary, IN Posts: 139 Likes: 0 Liked 0 Times in 0 Posts	Re: recomended presures in radial slicks I'm running the liteweight Hoosiers, 92.5 X 9.00 hard compound @ 21psi on F/SA 71 Olds 442. I have 20 psi in rt airbag, 5 psi in left. Seems to hook OK, but I'm working on the power end of the equation right now. I would like to know what you have for the A-Arms and links in the front suspension, I need my fronts to hang straight like yours, not splayed from camber change. Thanx, Starvin Marvin 3188

06-24-2009, 10:58 AM	#6
Bob Bender VIP Member Join Date: Jan 2009 Location: Maryland Posts: 1,734 Likes: 1,599 Liked 460 Times in 91 Posts	Re: recomended presures in radial slicks 36 PSI in my 4400 lb. stocker __________________ Bob Bender 144 O/SA 2010-2012 National Record Holder

06-24-2009, 04:02 PM	#7
treessavoy VIP Member Join Date: Feb 2009 Location: Dunnellon,FL Posts: 1,103 Likes: 0 Liked 4 Times in 4 Posts	Re: recomended presures in radial slicks I bought my 9" radials from Hoosier at the track and their rep's said to start at 21lbs for my 3450lb Ply.

06-28-2009, 04:03 AM	#8
Footbrake Junior Member Join Date: Dec 2007 Location: Tonawanda, N.Y. Posts: 35 Likes: 0 Liked 0 Times in 0 Posts	Re: recomended presures in radial slicks Not radials but maybe you guys can help me out here. I run 26x10 Hoosier slicks. I had my 7" cutlass rallys widened to 9" for a better footprint. Now I don't know where to go as far as air pressure. My 9" slicks on 7" rims liked about 18lbs, but these don't. It hooks the best at about 12.5 lbs. Am I going in the right direction or should I try a lot more air in these slicks? Car with me in it is 3960lbs.

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