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///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 12-25-2008, 10:40 PM   #1
TARLASHA
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how much psi should be in 19" tires


Hello guys need help , would like to find out what psi should be in 19" tires .I have toyo t1r 235x35x19 front , and 275x30x19 rear some people saying
35psi other 40psi.?????
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Old 12-25-2008, 10:50 PM   #2
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35psi all arround
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Old 12-26-2008, 12:18 AM   #3
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read the side of the tire it will tell you min and max then just go in the middle not for nuthin it should be around 35ish anyway
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Old 12-26-2008, 09:56 AM   #4
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actually you are suppose to look in the door jam on the sticker that gives you the size of the tires your car came with from factory and the set psi for the tires front and back.this is what the tires are set at for all factory tests.
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Old 12-26-2008, 10:12 AM   #5
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Yeah, 41 in the front, 48 in the back....
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Old 12-26-2008, 10:31 AM   #6
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Quote:
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actually you are suppose to look in the door jam on the sticker that gives you the size of the tires your car came with from factory and the set psi for the tires front and back.this is what the tires are set at for all factory tests.
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Old 12-26-2008, 10:33 AM   #7
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actually you are suppose to look in the door jam on the sticker that gives you the size of the tires your car came with from factory and the set psi for the tires front and back.this is what the tires are set at for all factory tests.
actually that's with stock wheels and tires setup which OP isn't using. 35-40 psi is fine not like your going to see any big difference with either anyway. I run 38ish all around
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Old 12-26-2008, 10:34 AM   #8
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read the side of the tire it will tell you min and max then just go in the middle not for nuthin it should be around 35ish anyway
Tires do not list a minimum air pressure....
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Old 12-26-2008, 12:53 PM   #9
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Hello guys need help , would like to find out what psi should be in 19" tires .I have toyo t1r 235x35x19 front , and 275x30x19 rear some people saying
35psi other 40psi.?????
I have the same wheel setup with Nittos and i run 36psi all round.
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Old 12-26-2008, 01:08 PM   #10
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I usually run 35-38ish.
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Old 12-26-2008, 01:11 PM   #11
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i run 79 psi front and 85 psi rear
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Old 12-26-2008, 01:17 PM   #12
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i run 79 psi front and 85 psi rear
Brooklyn potholes will make you do things like that
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Old 12-27-2008, 12:02 PM   #13
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i have the same tires,same size,same problem...
i used to go on 35 but then noticed the sides of the tire were so close to earth and were not protected,and it actually cost me a rear tire
i went for 40,they are still down,but the ride feels more comfortable,and steers better
im planning to go for 45 and will let u know the result
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Old 12-31-2008, 01:30 AM   #14
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I put 38 psi all around on my 19's. I don't want anymore bent wheels on potholes if they're too close to being underinflated.
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Old 12-31-2008, 01:43 AM   #15
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Fairly safe to go with recommended stock psi plus two times the diameter increase on the wheels. Then adjust accordingly to reach the perfect psi for your car. So if you started with 17's and were recommended to run 36. You'd run 40 as two times two (inch increase in wheel diameter) equals the increase.

This is how I run my car and haven't had uneven wear that wasn't caused by worn FCAB's/RTAB's.
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Old 12-31-2008, 03:27 AM   #16
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We fill all our tires from 38 to 40 psi at the shop.

Anything between 35-40 should be fine.
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Old 01-02-2009, 03:24 PM   #17
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i run 79 psi front and 85 psi rear
Most tires' maximum pressure are 44 psi to 51 psi, what you have in there seems dangerous.
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Old 01-02-2009, 05:06 PM   #18
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omg i think that was sarcasm? ahah def a joke mayne
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Old 01-03-2009, 03:54 PM   #19
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in bklyn new york i go with

42 lbs in the front
40 lbs in the rear

to protect the wheels you put the air press. a little higher to protect the wheels.. but you should not go over 45 lbs of air press. because when you drive for a while the air press. will go up some when the tires get warm up.

in bklyn the streets are really bad with pot holes and speed bumbs.. you have to put alittle more air in the tires to protect from bending the wheels... that is what you have to do in the new york area of the country....
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Old 01-03-2009, 09:55 PM   #20
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I like 40 all around for handling with a staggered setup on 19's.
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