Reality check re. tire pressure

Vertical · 02-28-2010, 07:56 PM

In the door jam it seems to indicate the tire pressures for my sport package equipped car is 38psi front 45 back. This seems very high to me, the Michelin PS2 tires I have on there (non-RFT) are good for 50 psi, so I'm safe there, but wow, that's a lot of air in car tires.

Can you guys confirm you're running similar pressures?

slats1279 · 02-28-2010, 08:10 PM

Mine (also a '06 330i w/ SP) says 32 in the front and 36 in the rear.

Oulixes · 02-28-2010, 08:13 PM

Quote:

Originally Posted by Vertical

In the door jam it seems to indicate the tire pressures for my sport package equipped car is 38psi front 45 back. This seems very high to me, the Michelin PS2 tires I have on there (non-RFT) are good for 50 psi, so I'm safe there, but wow, that's a lot of air in car tires.

Can you guys confirm you're running similar pressures?

Are you running 18-inch or 19-inch rims, staggered?

fdriller9 · 02-28-2010, 08:31 PM

Wrong section my dude.

caradd · 02-28-2010, 09:17 PM

Sounds like your either looking at high speed tire pressure or max tire pressure. The standard for sport is 32f 36r. I run a few pounds higher in the front for less understeer.

SCA · 02-28-2010, 10:10 PM

Quote:

Originally Posted by slats1279

Mine (also a '06 330i w/ SP) says 32 in the front and 36 in the rear.

+1

5soko · 02-28-2010, 10:42 PM

My E92 335i sitting in my garage is something like 35 in the rear, 32 in the front.

I went to check my 10 e90 LCI 335i m-sport with the same tires that are on the sport E92 335i potenza's and on the 2010 E90 its like 38 in the front 40 something in the back!

Has to be with economy and MPG, to keep the car coasting more.

Vertical · 03-01-2010, 01:43 PM

Quote:

Originally Posted by Oulixes

Are you running 18-inch or 19-inch rims, staggered?

18" staggered. Oddly there are only 1 set of numbers for the pressure. In other cars there are high weight, or high speed numbers...in this case, 1 set of numbers.

I have an early build car (Nov or Dec 2005), so maybe that's relevant here.

Sounds like I need to pressure down.

Thanks, and sorry if this is in the wrong forum.

03-02-2010, 03:30 AM

32 36

BK · 03-02-2010, 10:03 AM

Look in your owners manual. It has the pressure settings for different types of tires, different sizes, loads, and speeds.

The number in the door jamb is only for the OEM ZSP 18" 225/255 wheels, and the correct pressure is 32F/36R.

hugus311 · 03-02-2010, 12:10 PM

I believe thats only if only going over 100 mph. if not the proper pressure is 32 and 36 cold psi.

02-28-2010, 07:56 PM	#1
Vertical digs the drive 2 Rep 16 Posts Drives: 2006 330i 6-speed Join Date: Feb 2009 Location: Bay Area, CA iTrader: (0)	Reality check re. tire pressure - 2006 330i sport owners In the door jam it seems to indicate the tire pressures for my sport package equipped car is 38psi front 45 back. This seems very high to me, the Michelin PS2 tires I have on there (non-RFT) are good for 50 psi, so I'm safe there, but wow, that's a lot of air in car tires. Can you guys confirm you're running similar pressures?
	Appreciate 0 Tweet Quote

02-28-2010, 08:10 PM	#2
slats1279 Enlisted Member 4 Rep 38 Posts Drives: '15 M3, '15 X3-x35i, '10 FJ Join Date: Feb 2008 Location: NC iTrader: (1)	Mine (also a '06 330i w/ SP) says 32 in the front and 36 in the rear.
	Appreciate 0 Quote

02-28-2010, 08:31 PM	#4
fdriller9 Banned 252 Rep 7,089 Posts Drives: '06 AW 330xi Join Date: Mar 2009 Location: North Jersey/Philly/NYC iTrader: (4) Garage List 2006 330xi [6.44]	Wrong section my dude.
	Appreciate 0 Quote

02-28-2010, 09:17 PM	#5
caradd () () 8 Rep 436 Posts Drives: 2007 e92 335i 6mt Join Date: Jun 2009 Location: Here iTrader: (3)	Sounds like your either looking at high speed tire pressure or max tire pressure. The standard for sport is 32f 36r. I run a few pounds higher in the front for less understeer. __________________
	Appreciate 0 Quote

02-28-2010, 10:42 PM	#7
5soko Brigadier General 332 Rep 4,632 Posts Drives: M5 Join Date: Aug 2007 Location: Brooklyn, NY iTrader: (4)	My E92 335i sitting in my garage is something like 35 in the rear, 32 in the front. I went to check my 10 e90 LCI 335i m-sport with the same tires that are on the sport E92 335i potenza's and on the 2010 E90 its like 38 in the front 40 something in the back! Has to be with economy and MPG, to keep the car coasting more.
	Appreciate 0 Quote

03-02-2010, 03:30 AM	#9
RemovedUser Guest 0 Rep n/a Posts Drives:	32 36
	Appreciate 0 Quote

03-02-2010, 10:03 AM	#10
BK Smiling politely 165 Rep 7,931 Posts Drives: 330i Join Date: Feb 2006 Location: Washington DC iTrader: (0) Garage List 2006 330i [9.00]	Look in your owners manual. It has the pressure settings for different types of tires, different sizes, loads, and speeds. The number in the door jamb is only for the OEM ZSP 18" 225/255 wheels, and the correct pressure is 32F/36R. __________________ E90 330i Black Sapphire 6MT \| 991.1 C4 Platinum Silver 7MT
	Appreciate 0 Quote

03-02-2010, 12:10 PM	#11
hugus311 Titanium silver + Sport + Premium 32 Rep 662 Posts Drives: 2006 330i (E90) Join Date: Nov 2009 Location: west covina 626 iTrader: (6)	I believe thats only if only going over 100 mph. if not the proper pressure is 32 and 36 cold psi.
	Appreciate 0 Quote