Tire pressure
Thread Starter
Instructor
Joined: Dec 2007
Posts: 201
Likes: 0
From: Fletcher North Carolina
Tire pressure
I just went from Michelin run-flats to Conti DWS06 non run-flats. Man, what a difference! Wish I’d done it lon ago.
Anyway, what tire pressure would be best for semi-spirited street use?
Anyway, what tire pressure would be best for semi-spirited street use?
Burning Brakes
Joined: Jun 2007
Posts: 773
Likes: 213
From: Auburn Ohio
This should be an interesting thread…
Okay, I’ll start
bought the car with a new set of Sumitomo already on it
….since they were Round and Balanced I decided to run them
Currently have about 8,000 miles on them
I have ZO6 Springs and C6 ZO6 Bars
Went to Johnny O’Connell shocks (Bad *** and Highly Recommended)
Lowered my pressures to
31 Front and 29 Rear
Wear Pattern looks Excellent ….so far
….ride is good
🍿
Okay, I’ll start
bought the car with a new set of Sumitomo already on it
….since they were Round and Balanced I decided to run them
Currently have about 8,000 miles on them
I have ZO6 Springs and C6 ZO6 Bars
Went to Johnny O’Connell shocks (Bad *** and Highly Recommended)
Lowered my pressures to
31 Front and 29 Rear
Wear Pattern looks Excellent ….so far
….ride is good
🍿
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The sticker on the door recommends 30 psi cold. That should give you good results.
Safety Car
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Racer
Joined: Mar 2020
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From: Virginia
I just checked what the Z06 with non-runflats called for, and it was 30/30, so I went with that.
Le Mans Master
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I have 32/32 cold (nitrogen) and it seems to ride the best and handle well. I have F55 shocks and keep it set on Tour.
Safety Car
Joined: May 2015
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The front is 29.5 and the rear 30.75... at room temperature cold in southern Cal weather but only during the mildly harsh winters... Lower to 29 and 30 the rest of the time. 🙄
Last edited by c5arlen; Jul 13, 2024 at 03:14 PM.
Melting Slicks
Joined: Mar 2023
Posts: 2,954
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From: North Coast
Look there is no one tire pressure for all tires, all suspensions and all types of driving.
30 is the recommended for the OE Tires. Start there and read the tread. If they wear in the middle too much you have too much pressure. If they wear on the outer edge or wear more then you need more.
Nore run flats have much stiffer side walls and will be less prone to roll under on hard turns do lower pressures work. Non run flats may need a few pounds more to take care of the more flexible side walls.
When we autocrossed on non run flats we add pressure to better contact area of tread and less roll.
So start at 30 psi drive 3000 to 5000 miles. Then read the tread.
Alignment can also be a factor as it could be it out of alignment or set for the track. Both could factor in different wear too.
Front to back could vary due to tire size and sway bars. You may need different PSI at each end.
Compounds also play a roll. How sticky the tires are can make a difference too.
Time of year and temps can vary pressures by 4 psi
30 is the recommended for the OE Tires. Start there and read the tread. If they wear in the middle too much you have too much pressure. If they wear on the outer edge or wear more then you need more.
Nore run flats have much stiffer side walls and will be less prone to roll under on hard turns do lower pressures work. Non run flats may need a few pounds more to take care of the more flexible side walls.
When we autocrossed on non run flats we add pressure to better contact area of tread and less roll.
So start at 30 psi drive 3000 to 5000 miles. Then read the tread.
Alignment can also be a factor as it could be it out of alignment or set for the track. Both could factor in different wear too.
Front to back could vary due to tire size and sway bars. You may need different PSI at each end.
Compounds also play a roll. How sticky the tires are can make a difference too.
Time of year and temps can vary pressures by 4 psi
Last edited by hyperv6; Jul 13, 2024 at 04:41 PM.