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ITS DE5 Warped Rear Brakes 10K Miles

Victorofhavoc

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That's good to know. I've definitely been experimenting with tire pressure lately. Sounds like I'm too low. On the 275/35/R18 tires in my pics, I was running around 34 PSI front and 31 PSI rear (cold). Sounds like that might be a tad low.

Thanks for the info! I'll try some higher pressures when it's time for summer tires again.
With 18s your load rating is also much higher so 29psi is equivalent to 35psi in oem load rating.

On the 265/30/19 i found 44/40 to be pretty well balanced at the track, but it will change depending the surface and track. I could have further tuned driver front to 46, passenger 43, rears 40/40.

44psi on oem tires is 34psi and 40 is 33. Sounds like you're not terribly far off, but if you're on 9.5" wheels you might need that bumped 2-3psi still to account for the significantly wider tire footprint (the oem 265 dt1 is narrower by 3/4" than 265 regular ps4s so the 275 is i bet a whole 1" wider).
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dockleryxk

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With 18s your load rating is also much higher so 29psi is equivalent to 35psi in oem load rating.

On the 265/30/19 i found 44/40 to be pretty well balanced at the track, but it will change depending the surface and track. I could have further tuned driver front to 46, passenger 43, rears 40/40.

44psi on oem tires is 34psi and 40 is 33. Sounds like you're not terribly far off, but if you're on 9.5" wheels you might need that bumped 2-3psi still to account for the significantly wider tire footprint (the oem 265 dt1 is narrower by 3/4" than 265 regular ps4s so the 275 is i bet a whole 1" wider).
Thank you!! I will definitely give it a shot. I'm on 265/35/R19 now for the winter with all seasons, so I'll add a few PSI for now anyways. Won't hurt the gas mileage haha

To be honest I'm not too fussed as long as I've got grip and I'm able to get the car to turn in/rotate nicely. Lower rear pressure than front definitely helps, but you can definitely go too far with this LOL
 

Victorofhavoc

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Thank you!! I will definitely give it a shot. I'm on 265/35/R19 now for the winter with all seasons, so I'll add a few PSI for now anyways. Won't hurt the gas mileage haha

To be honest I'm not too fussed as long as I've got grip and I'm able to get the car to turn in/rotate nicely. Lower rear pressure than front definitely helps, but you can definitely go too far with this LOL
You're correct. There's definitely na point of too far. I usually base my pressure of how the tire is wearing when I don't have a proper tire pyro on hand. Too much wear at the edges - pressure up, too much wear in the middle - pressure down, not enough turn in rotation - pressure up rear or down front, outer edge rolling over - pressure up or more neg camber (situational), inside wearing too fast - pressure up or less neg camber (situational), and lastly if all else fails but tires are wearing unevenly, then toe spec needs adjustment in or out.

265/30 @ 35psi = 265/35 @ 30psi. Check out tiresize.com/pressure-calculator.
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