Tire Air Pressure
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Tire Air Pressure
What do you pump yours up too?
I guess the normal is suppose to be 30 psi (The sticker on the door is a bitch to read!), but I did 34 psi on the weekend and I can feel every crack I run over. They are filled with Nitrogen but they still have been losing air because of the cold temperatures, so I just fill them up with O2 now. The tires say max 50 psi, crazy.
I guess the normal is suppose to be 30 psi (The sticker on the door is a bitch to read!), but I did 34 psi on the weekend and I can feel every crack I run over. They are filled with Nitrogen but they still have been losing air because of the cold temperatures, so I just fill them up with O2 now. The tires say max 50 psi, crazy.
Owner of
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00 Navy Blue Metallic Formula Firehawk #689
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02 Arctic White Trans Am Firehawk #1314
02 Black Trans Am Firehawk #1386
00 Navy Blue Metallic Formula Firehawk #689
I bought 3 Hawks in 10 months! Are you kidding me?! (Oct 08-Aug 09)
http://www.ls1tech.com/forums/album.php?albumid=12415
Re: Tire Air Pressure
I air mine up cold at 35psi.
Re: Tire Air Pressure
I run mine @ 32psi cold.
2002 Trans Am Firehawk Vert #25 Red w/Ebony Interior w/M6 1 of 19 built
2002 Trans Am Firehawk T-top #162 Sunset Orange Metallic w/Camel Interior 1 of 7
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2002 Trans Am Firehawk T-top #162 Sunset Orange Metallic w/Camel Interior 1 of 7
1978 Trans Am Martinique Blue w/Black Deluxe Interior Owned since 7/82
- Scott Chab
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Re: Tire Air Pressure
32psi cold rear, 34psi cold front.
'94 Hawk #110
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Re: Tire Air Pressure
When I had 275s, I think it was 34 cold. I thought the tires said 44 max. But with 285s for higher speeds, I try 37 cold.
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- Scott Chab
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Re: Tire Air Pressure
37 is too high (and 44 is WAAAAAY too high). Your tires are going to wear more in the middle, you'll actually reduce the contact patch a little and you'll have a little rougher ride.02hawk796 wrote:When I had 275s, I think it was 34 cold. I thought the tires said 44 max. But with 285s for higher speeds, I try 37 cold.
It doesn't matter how big the tire is. A 285 doesn't need a higher psi than a 275.
'94 Hawk #110
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Re: Tire Air Pressure
what's the max P.S.I. recommended on the side wall of the tire?
2001#194 (Unicorn)
Re: Tire Air Pressure
Side wall only tells you the max pressure for the tire. You should always look at the sticker in the drivers side door jam that the manufacture put on. When reading sticker make sure it lists the tire size as well as the pressure and that the tire size listed matches what is on the car.BLACK-HAWK wrote:what's the max P.S.I. recommended on the side wall of the tire?
In our case SLP changed the sticker (added a new one) noting the tire size change and a different tire pressure to take into account the tire size change.
My 1995 says 35psi on the sticker.
Brian
Re: Tire Air Pressure
Always follow the air pressure listed on the door sticker, a good example is Ford listing on their Explorers a low pressure which causes blowouts resulting in fatal accidents - the actual tire pressure was given by the tire mfgr (Firestone), but car makers decide that is too stiff, and they want their ride to be softer without correctly designing their suspension. So you'll know that even if you die, you still followed the tire pressure listing on the sticker. This will save the carmaker's lawsuit load because, of course, you'll be dead.
I have no plans to ride anything over 275 on a stock rim at performance speeds with less than 37psi. And no, the center does not wear faster, but it's only been 5 years tho. You may do as you wish.
I have no plans to ride anything over 275 on a stock rim at performance speeds with less than 37psi. And no, the center does not wear faster, but it's only been 5 years tho. You may do as you wish.
2002 T/A Firehawk Convertible #0796 BlackEbonyBlack 6-spd, WI Plate "OH2 HAWK"
GM: TCS, Hurst, 12CD, Last of the Breed
SLP: Bilstein, Chromes, Cover, Floor Mats, Rear Deck Mat, Portfolio
SLP After: Skip-shift Eliminator, Customized Rear Deck Mat
GM: TCS, Hurst, 12CD, Last of the Breed
SLP: Bilstein, Chromes, Cover, Floor Mats, Rear Deck Mat, Portfolio
SLP After: Skip-shift Eliminator, Customized Rear Deck Mat
- Scott Chab
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Re: Tire Air Pressure
So you set your pressure at 37psi cold? That is going to jump up to over 40psi when they heat up at higher speeds.02hawk796 wrote:
I have no plans to ride anything over 275 on a stock rim at performance speeds with less than 37psi. And no, the center does not wear faster, but it's only been 5 years tho. You may do as you wish.
It's obviously your call but I would never drive with tire pressure that high.
'94 Hawk #110
Back on the road helping me make bad decisions again
Back on the road helping me make bad decisions again
Re: Tire Air Pressure
I don't buy this. You can't lower the tire pressure enough to make up for a stiff suspension setup.02hawk796 wrote:Always follow the air pressure listed on the door sticker, a good example is Ford listing on their Explorers a low pressure which causes blowouts resulting in fatal accidents - the actual tire pressure was given by the tire mfgr (Firestone), but car makers decide that is too stiff, and they want their ride to be softer without correctly designing their suspension. So you'll know that even if you die, you still followed the tire pressure listing on the sticker. This will save the carmaker's lawsuit load because, of course, you'll be dead..
I due think there was a design flaw in the combination of the tires, rims and the Explorers in general, but I also believe that 90% of the problem was people running on tires that were under inflated. Next time you see one of those older Explorers on the road, look at the tires.
I am weird (but that is besides the point) as I always look at the on tires on cars around me. It seems I can always fine a low tire on the those Explorers.
Brian
Re: Tire Air Pressure
I've checked the pressure after very heavy driving, and have not had the pressure over 40 when hot - very hot.Scott Chab wrote:So you set your pressure at 37psi cold? That is going to jump up to over 40psi when they heat up at higher speeds.02hawk796 wrote:
I have no plans to ride anything over 275 on a stock rim at performance speeds with less than 37psi. And no, the center does not wear faster, but it's only been 5 years tho. You may do as you wish.
It's obviously your call but I would never drive with tire pressure that high.
Like I said, you may do as you wish. If the max pressure is 44 or 50, I much rather have closer to that than too much underpressure.
2002 T/A Firehawk Convertible #0796 BlackEbonyBlack 6-spd, WI Plate "OH2 HAWK"
GM: TCS, Hurst, 12CD, Last of the Breed
SLP: Bilstein, Chromes, Cover, Floor Mats, Rear Deck Mat, Portfolio
SLP After: Skip-shift Eliminator, Customized Rear Deck Mat
GM: TCS, Hurst, 12CD, Last of the Breed
SLP: Bilstein, Chromes, Cover, Floor Mats, Rear Deck Mat, Portfolio
SLP After: Skip-shift Eliminator, Customized Rear Deck Mat
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Re: Tire Air Pressure
Can anyone post a picture of the door panel sticker? It is hard to figure out. There is a 30/100 on it, then it says 28 psi somewhere...
Owner of
02 Arctic White Trans Am Firehawk #1314
02 Black Trans Am Firehawk #1386
00 Navy Blue Metallic Formula Firehawk #689
I bought 3 Hawks in 10 months! Are you kidding me?! (Oct 08-Aug 09)
http://www.ls1tech.com/forums/album.php?albumid=12415
02 Arctic White Trans Am Firehawk #1314
02 Black Trans Am Firehawk #1386
00 Navy Blue Metallic Formula Firehawk #689
I bought 3 Hawks in 10 months! Are you kidding me?! (Oct 08-Aug 09)
http://www.ls1tech.com/forums/album.php?albumid=12415
Re: Tire Air Pressure
I should have also mentioned, that if somebody is unwilling to inflate to 37psi, they should NOT mount the 285 Firestone Firehawks on the stock rims. Stay with the 275s for sure-footed performance.Scott Chab wrote:So you set your pressure at 37psi cold? That is going to jump up to over 40psi when they heat up at higher speeds.02hawk796 wrote:
I have no plans to ride anything over 275 on a stock rim at performance speeds with less than 37psi. And no, the center does not wear faster, but it's only been 5 years tho. You may do as you wish.
It's obviously your call but I would never drive with tire pressure that high.
2002 T/A Firehawk Convertible #0796 BlackEbonyBlack 6-spd, WI Plate "OH2 HAWK"
GM: TCS, Hurst, 12CD, Last of the Breed
SLP: Bilstein, Chromes, Cover, Floor Mats, Rear Deck Mat, Portfolio
SLP After: Skip-shift Eliminator, Customized Rear Deck Mat
GM: TCS, Hurst, 12CD, Last of the Breed
SLP: Bilstein, Chromes, Cover, Floor Mats, Rear Deck Mat, Portfolio
SLP After: Skip-shift Eliminator, Customized Rear Deck Mat
- Scott Chab
- Posts: 3309
- Joined: Sat Feb 23, 2002 3:44 pm
- Location: Wilmington, Delaware
Re: Tire Air Pressure
I guess they shouldn't do what they want?02hawk796 wrote:I should have also mentioned, that if somebody is unwilling to inflate to 37psi, they should NOT mount the 285 Firestone Firehawks on the stock rims. Stay with the 275s for sure-footed performance.Scott Chab wrote:So you set your pressure at 37psi cold? That is going to jump up to over 40psi when they heat up at higher speeds.02hawk796 wrote:
I have no plans to ride anything over 275 on a stock rim at performance speeds with less than 37psi. And no, the center does not wear faster, but it's only been 5 years tho. You may do as you wish.
It's obviously your call but I would never drive with tire pressure that high.
'94 Hawk #110
Back on the road helping me make bad decisions again
Back on the road helping me make bad decisions again