Drag Radial tire pressure?

[lipt0n svTE]

i am running nitto 555r's, and just curious what pressure everybody else is running on, i have tried 21psi and they still spun and then a gentlemen told me to run 12psi i did and they didn't spin but they seemed to take a bunch of power just curious what everyone else is running? thanks

 

[Silver '01 L]

18 for street performance. About the same at the track. I know 12 is too low. The middle of the tread will cup because it does not have enough air pressure to keep the center on the ground.

 

[Derek@Amazon]

i run 20 on the street and 20 on the track... im lazy i just dont feel like changing them. i thyink i had them at 17 at the track last time cuz i was spinning a bit at 20

 

[JollyGiant]

I only run mine at the track but I found 18# works best for me.

 

[Billybong]

18# works for me, consistent 1.8's. Keep 'em about 25# on the street to prevent wear as they tend to wear in the middle. Of course now I have an extra set of wheels for swapping street/strip.

 

[lipt0n svTE]

thanks guys i will try 18 at the track this weekend hopefully it works

 

[ron_lightning04]

hehe i was getting 1.9's on stock tires at the track

lates ron,

 

[topless_sn8k]

TTT, any other suggestions.

 

[SS THiS]

18 all the time

 

[Lightning_Bolt]

18

 

[Tazman1]

18 here as well.

 

[03SNOWBALL]

I'm curious as to what everyone uses aswell on the street.I have mine on 30psi now when I got them I put them on 18 for street and thought they were to low or are they ok to use everyday at that psi?I had them at 17-18 at the track and they worked fine.

 

[Cocoloco]

I'm curious as to what everyone uses aswell on the street.I have mine on 30psi now when I got them I put them on 18 for street and thought they were to low or are they ok to use everyday at that psi?I had them at 17-18 at the track and they worked fine.

I'm curious about that myself?:idea:

 

[Cialis]

Ran my last set at 18# and got about 10,000 miles outta them. I have my new set at about 25#. Im going to see how they last. At the track Ill drop them back to 18,but I dont hit the track too often.
This set is also heat cycled from discounttiresdirect.com.

 

[Cocoloco]

What exactly is heat-cycled?

 

[ChrisNelson]

What exactly is heat-cycled?

http://www.roadrunner-region-pca.org/tech/heat.htm :beer:

 

[Tazman1]

From the discount tire. http://www.discounttiredirect.com/direct/brochure/info/tmpInfoHeatCycling.jsp

 

[01whiteL]

18 24/7

 

[SVT-BansheeMan]

35-32 for DD. 17.5 for the track. I cut 1.8's at the track. I always thought it was unsafe to run 18-20 on the street. Any comments on that?

 

[DEFYANT]

35-32 for DD. 17.5 for the track. I cut 1.8's at the track. I always thought it was unsafe to run 18-20 on the street. Any comments on that?

IMO, 18 on the street is too mushy - expecially at higher speeds. Depending on air temps, I run them closer to 30 lbs. Too much air pressure is no good either. I agree with 18lbs at the track.