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Old 04-07-2013, 07:06 PM   #1
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1LE Factory Tire Pressure

I was wondering if any of the 1LE owners would be able to look on the info tag inside their drivers door to see what the factory tire pressure recommendations are for the front and rear.

Thanks in advance!
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Old 04-07-2013, 07:10 PM   #2
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Old 04-07-2013, 07:21 PM   #3
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Old 04-07-2013, 07:26 PM   #4
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so the 23lbs I dropped them to @ the drag strip that tripped the warning to add air wasnt right?


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Old 04-07-2013, 07:31 PM   #5
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so the 23lbs I dropped them to @ the drag strip that tripped the warning to add air wasnt right?


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Old 04-07-2013, 07:33 PM   #6
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then that means the 29 i ran at Laguna wasn't right too
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Old 04-07-2013, 07:38 PM   #7
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then that means the 29 i ran at Laguna wasn't right too
Course vs strip but....

If I remember right:
I took a pass @ 29 lbs and went 12.4 (2.1 60' @ 125)

Dropped to 24lbs and went 11.71 (1.87 60' @ 123)

Dropped to 23lbs and went 11.67 (1.83 60' @ 123)
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Old 04-07-2013, 07:42 PM   #8
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Thanks for the replies everyone!
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Old 04-07-2013, 08:22 PM   #9
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Quote:
Originally Posted by SUKXOST View Post
Course vs strip but....

If I remember right:
I took a pass @ 29 lbs and went 12.4 (2.1 60' @ 125)

Dropped to 24lbs and went 11.71 (1.87 60' @ 123)

Dropped to 23lbs and went 11.67 (1.83 60' @ 123)
Thats amazing that such little gains/losses in pressure make such a difference,nice pass
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Old 04-08-2013, 03:19 AM   #10
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OMG, my 1LE was delivered to me with 44 psi in each corner. It felt like I was driving on bowling balls until I lowered them. I'm not sure if the factory or the dealer did it. Did everyone else's come with "Nitrofilled" from the factory or was this a dealer addon for my car? It came with the white-logo-ed valve caps that look horrid on the black wheels.

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Old 04-08-2013, 10:49 AM   #11
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Thats amazing that such little gains/losses in pressure make such a difference,nice pass
That could be driver improvement as he got use to the track condition, he varied the launch RPMs or the track was improving. Typically a 35 series DOT track (road race) tire is not effective at a drag strip because the sidewall is so stiff it doesn't allow for weight transfer. I am actually suprised that the 60fts are that good on the stock tire! Nice driving!

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Old 04-08-2013, 10:59 AM   #12
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Originally Posted by Dropspeed View Post
That could be driver improvement as he got use to the track condition, he varied the launch RPMs or the track was improving. Typically a 35 series DOT track (road race) tire is not effective at a drag strip because the sidewall is so stiff it doesn't allow for weight transfer. I am actually suprised that the 60fts are that good on the stock tire! Nice driving!

-Matt
I agree. With wrinkle wall slicks, pressure is a huge deal, but these new tires I would not have thought were as responsive to pressure changes. It would be interesting to note any other changes like launch RPM and / or weather conditions.
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Old 04-08-2013, 08:49 PM   #13
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With lower tire pressure though on the good years you may not get sidewall wrinkle but you will effectively increase your contact patch area which will give you more traction. With less pressure the flat spot on the bottom will become bigger thus give you more grip.
Obviously the tire is not really intended for drag racing with the low sidewall but lowering the pressure can still help a bit.
I'm sure with SUKXOST though he did improve his driving as he warmed up to the track.
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Old 04-08-2013, 08:54 PM   #14
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Quote:
Originally Posted by Tara Martin View Post
OMG, my 1LE was delivered to me with 44 psi in each corner. It felt like I was driving on bowling balls until I lowered them. I'm not sure if the factory or the dealer did it. Did everyone else's come with "Nitrofilled" from the factory or was this a dealer addon for my car? It came with the white-logo-ed valve caps that look horrid on the black wheels.

Tara

Mine came in at 38 psi and I dropped it down to 32 psi I'm thinking of going with 30 psi. No Nitrofill either.
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Old 04-10-2013, 10:00 PM   #15
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Yep 32 psi for everyday operation and the manual says for our tires to inflate to 44 psi before operating at greater than 100mph.
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Old 04-10-2013, 11:26 PM   #16
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With lower tire pressure though on the good years you may not get sidewall wrinkle but you will effectively increase your contact patch area which will give you more traction. With less pressure the flat spot on the bottom will become bigger thus give you more grip.
.
One would think, but not actually true with a stiff side wall radial tire. You can lower the pressure enough on a radial that your contact patch actually decrease.
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Old 04-22-2013, 09:25 AM   #17
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Quote:
Originally Posted by Tara Martin View Post
OMG, my 1LE was delivered to me with 44 psi in each corner. It felt like I was driving on bowling balls until I lowered them. I'm not sure if the factory or the dealer did it. Did everyone else's come with "Nitrofilled" from the factory or was this a dealer addon for my car? It came with the white-logo-ed valve caps that look horrid on the black wheels.

Tara
I got wondering about my "NitroFilled question above and looked closer at some photos I took of my car on the delivery truck. Sure enough, the white NitroFilled caps were on the car delivered to the dealer. Did anyone else receive factory Nitro? I know that there's a vigorous argument pro and con about Nitrogen in tires, but I was wondering about it is all. First time I have to replace or repair a tire I probably won't continue unless it's free.

Also, I just passed 5k miles and the original tires look like they might have another 5k left on them. How are everyone else's tires fairing so far? I've already bought two spare F1's, one right and one left just in case of a road hazard. I had to order them and they took a week. I can't afford to have my daily driver down that long without a spare.

Have fun driving your 1LEs!

Tara
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Old 04-22-2013, 09:35 AM   #18
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Mine had green caps on the tire valves when I picked up the car with the original caps in the glove box. Green sticker on the inside of the windshield with the dealer logo stating that the tires were nitrogen filled.

The nitrogen fill was part of their prep and no extra charge so it didn't matter to me either way. When they need air, I'll just put regular air in them.
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