Hi, I just got my re01-r from the tire rack deal. I got 255/40/17 and I am mounting them on my MR BBS rims. I was wondering what PSI should I run them at. Also, whats the break in procedure for these. Should I rotate after 50 miles, 100, 500 or 1k miles. Any other things i should know about running this tire. Thanks

 

I have them in 18's. 35psi. i will rotate in 5000 miles. Alignment is important if you are lowered.

 

Break-in is really just take it easy for the first 100 miles to get the mold release compound off.

I like 34f and 36r - 35 all around is a good starting point to feel out the car.

 

Johnny, I was going to ask the same question...haha.

 

you should always keep the rear around 2psi less in order to keep the diameter of the tires as close to being the same as possible..

 

The dia is a part of the tire. I.e. 255/40 is something like 25.7 - only in extreme psi cases will that change.

Tire pressure can be used to fine tuned handling characteristics.

 

I would consider this nit-picking.. There is a reason the factory even specifies this differential.. And although you can dial in characteristics of handling by changing pressure, it will ALWAYS be easier on the center differential with the 2-3psi difference..I have to disagree on the "only in extreme psi cases" because especially with stiff sidewall, soft compunt tires, the center of the tire would be most likely to see the difference, more effectively changing the overall diameter..

I surprised that you being a mod would come at me like that, fogive me if I failed to catch the sarcasim.

 

1. I am not attacking you.

2. High psi in tires will cause a hi-center (or inversely - low center (upside-down U wear)). Soft compounds have nothing to do with the center tread section bubbling out. Sidewalls will resist the urge to moving inwards - if anything.

3. I have 107k on my car. TC is original - I have run the offset psi for about 100k - I don't see your argument.

4. Ah yes, the factory is always right. If that is true - why do you tune cars? Again, just to point that out. Its like our OE alignments - they can be adjusted to improve the car. Other areas of this car can be improved also (tires, susp, ecu, etc.)

 

these are HOT Psi correct?

 

You will probably have a better contact patch if you stagger the psi because there is less weight in the rear of the vehicle. I normally rotate high performance tires every 3000 to get maximum life.

 

Cold.

I rotate every 3-5k and flip the tires inside out when the inner tread blocks are worn.

 

If you are going to race on the RE01R, they like at least one really good heat cycle. In testing for 2007 scca nationals, I found they were best after one 10 minute skidpad session then a 24 hour cool.

For street driving, it doesn't matter. Just drive them.

d

 

What about a daily that sees track/autox donour?

 

Just drive them. 35 psi on the street will work great.

You'll want to take special care if they are dedicated autocross tires and you want absolute maximum performance. For dual purpose, mount 'em and go


d

 

Breaking In Your Tires

Tire Rotation Instructions