tire pressures with M/T drag radials

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stracer859 · #1 Post by **stracer859** » Thu Nov 17, 2005 11:49 pm

what pressures are you guys runnin with the radials. i have went as low as 12 lbs, still feels stable , thought about goin a lil lower

MOKANRACER · #2 Post by **MOKANRACER** » Fri Nov 18, 2005 2:52 pm

Well with 12 PSI in my 26 inchers,made it squirmy at 122+.......

stracer859 · #3 Post by **stracer859** » Fri Nov 18, 2005 6:00 pm

im runnin the 275/60/15 m/t's. so far so good

corey k · #4 Post by **corey k** » Sun Nov 20, 2005 7:17 pm

it really depends on the rear weight of your car lighter cars can get a way with less pressure than a heavy car plus side wall height will have a effect also

#5 Post by **John_Heard** » Mon Nov 21, 2005 8:15 am

I just read in the latest Chevy Hi-Performance mag where they had a feature article on Artis Houston's Nova that runs the same tire and it said he uses 15-18 psi. in his. Looked like he had 10" rims on his, that might be a little wider than yours.

MOKANRACER · #6 Post by **MOKANRACER** » Mon Nov 21, 2005 8:42 am

Beyond wrote:I just read in the latest Chevy Hi-Performance mag where they had a feature article on Artis Houston's Nova that runs the same tire and it said he uses 15-18 psi. in his. Looked like he had 10" rims on his, that might be a little wider than yours.

Well I,m using 26x10.5x15 MT ET streets on 9" rims. Some time next year,prob will up grade to a 26x11.5x15..Give me close to 2" more tread on the ground. Should be able to run another lb or so. Get rid of the suirming,I,m hoping.That and getting some front end travel. http://www.mokandragway.com/fd_photos/f ... _05_41.jpg

stracer859 · #7 Post by **stracer859** » Mon Nov 21, 2005 7:45 pm

well i ran 12.5 lbs through the quarter and it felt fine, hooked good with the cal trac adjustment i made. only got to make 1 pass tho, so i didnt get to spray it. did do another personal best on motor et 7.14 @ 96 mph in the 1/8 11.22 @ 118 in the 1/4. i was really wantin to spray it, i was hopin to get a 9 sec time slip but o well maybe next year i guess. thanks once again for every ones help and advice. i just ordered a kit from smith racecraft to move my shocks inboard since 1 of them is hitting the frame rail during travel. yall nova and camaro guys check his stuff out, he has some pretty nice pieces.

MOKANRACER · #8 Post by **MOKANRACER** » Tue Nov 22, 2005 6:42 am

stracer859 wrote:well i ran 12.5 lbs through the quarter and it felt fine, hooked good with the cal trac adjustment i made. only got to make 1 pass tho, so i didnt get to spray it. did do another personal best on motor et 7.14 @ 96 mph in the 1/8 11.22 @ 118 in the 1/4. i was really wantin to spray it, i was hopin to get a 9 sec time slip but o well maybe next year i guess. thanks once again for every ones help and advice. i just ordered a kit from smith racecraft to move my shocks inboard since 1 of them is hitting the frame rail during travel. yall nova and camaro guys check his stuff out, he has some pretty nice pieces.

WOW. My 1st pass duplicated yours.lol 1/8 et was 7.12 @ 97.68 and 1/4 et was 11.14 @ 121.29. I,m sure 10,s will be there as soon as I get the dropped spindles switched out for std height, and loosen up my shocks. My 60 ft is the pitts @1.6108 for that run.

stracer859 · #9 Post by **stracer859** » Tue Nov 22, 2005 6:30 pm

mine wasnt as good as it usually is,, it was a 1.58 or 59. usually is a 1.55 or 54.

MOKANRACER · #10 Post by **MOKANRACER** » Tue Nov 22, 2005 7:47 pm

stracer859 wrote:mine wasnt as good as it usually is,, it was a 1.58 or 59. usually is a 1.55 or 54.

When mine was squirted,it got a 1.55 60ft,but ran a 10.5 at 128 mph and a 10.6 at 130 mph.

stracer859 · #11 Post by **stracer859** » Tue Nov 22, 2005 10:03 pm

i only got a 1.48 60 on 150 horse, spun some tho

MOKANRACER · #12 Post by **MOKANRACER** » Wed Nov 23, 2005 6:37 am

stracer859 wrote:i only got a 1.48 60 on 150 horse, spun some tho

Well seems your hooking lots better than I am. Hope to improve my set up soon. I have removed my dropped spindles and have sent them back to TCI for exchange. Will allow the front end to come up some,hopfully planting the tires better. Than want to put a little delay in the No2 system to allow me to go up to 200 shot. Any way lots of rust and paint work to do this winter.Racing is pretty much over here,this next Sunday is last day and the weather isnt looking that good,

DOTracer · #13 Post by **DOTracer** » Wed Nov 23, 2005 3:03 pm

Run as much pressure as possible and still allow the car to hook. These aren't bias ply slicks and they need more air to support the sidewalls and keep the tread from "cupping".

On a 275/60 M/T ET Street Radial, I run anywhere from 17 to 19 lbs, never had a reason to run less than 16 lbs.

MOKANRACER · #14 Post by **MOKANRACER** » Wed Nov 23, 2005 3:17 pm

DOTracer wrote:Run as much pressure as possible and still allow the car to hook. These aren't bias ply slicks and they need more air to support the sidewalls and keep the tread from "cupping".

On a 275/60 M/T ET Street Radial, I run anywhere from 17 to 19 lbs, never had a reason to run less than 16 lbs.

Mine arnt rated like that? All they say is 26x10.5x15LT ???? Any way at 14 lbs ,they didnt hook at all.Like I say,I think most of my problems will hopfully go away when I get the front end suspension fixed.

#15 Post by **John_Heard** » Wed Nov 23, 2005 3:23 pm

Yours are ET Street's / Bias Ply tire Roger, they are talking about MT Drag Radials

tire pressures with M/T drag radials

tire pressures with M/T drag radials

MT Radials Pressure

tire pressure

Tire pressure

1/8 mph/ et

60 ft

1.48 60 ft

MT ET Streets

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