2010 330i

HGabr · 11-30-2009, 06:36 AM

Hi guys need some help here,

I have my cars for nearly 5,000 miles now. I have a 330i with a 225/45/17R all around.

My door sticker says 2.4 bar for the front (34 psi) and 2.9 bar for the rear (42 psi)

I am afraid to go over 40 psi as i drive fast on the highway here frequently.

I also don't wanna go too low as Egypt is the land of potholes and I don't want to get any sidewall bubbles!

Can anyone help please?

HGabr · 11-30-2009, 12:46 PM

Bump, anyone help?

Peter@VMRWheels · 11-30-2009, 04:49 PM

If your door sticker recommends 34/42 then I don't see a reason why you shouldn't follow that, unless maybe you have aftermarket wheels. PSI only one of many reasons for sidewall bubble problems.

HGabr · 11-30-2009, 11:34 PM

But isn't 42 psi a bit too much? I do have oem wheels but as a single runflat tire runs around 500 bucks here in egypt! I don't wanna ruin them. If someone can post their oem 330 17 inch recommended pressure that would be great!

2M · 11-30-2009, 11:51 PM

off topic but how much horses are the current 330's rated

thanks?

HGabr · 12-01-2009, 12:24 AM

Quote:

Originally Posted by Alpine3

off topic but how much horses are the current 330's rated

thanks?

Well mine is a 2010 330i, its the euro version cause this is the one we get here in Egypt. They are currently rated at 272 hp

demosthenes · 12-01-2009, 08:46 AM

You should use the recommended pressures, which depend on what speed you drive.

The owner's manual recommends higher pressures for high speeds. If you drive at high speeds for prolonged periods, you should use BMW's high speed recommendations. If you drive at high speeds frequently but only for short bursts, you could use something in between the normal and high speed recommendation. If not, you should use their normal recommendation or a few pounds higher.

Check the sidewalls of your tires for the maximum recommended pressure. BMW's recommendations are always below the maximum.

2M · 12-20-2009, 08:55 PM

Quote:

Originally Posted by HGabr

Well mine is a 2010 330i, its the euro version cause this is the one we get here in Egypt. They are currently rated at 272 hp

nice i wish my 328 E92 was 272hp...i would never want the hpfp 335 (although i might reach 272 bhp if i put headers and straight pipes

)

11-30-2009, 06:36 AM	#1
HGabr Registered 0 Rep 4 Posts Drives: 330i - e90 Join Date: Aug 2009 Location: Cairo - Egypt iTrader: (0)	2010 330i - 17" 225/45 recommended pressure help! Hi guys need some help here, I have my cars for nearly 5,000 miles now. I have a 330i with a 225/45/17R all around. My door sticker says 2.4 bar for the front (34 psi) and 2.9 bar for the rear (42 psi) I am afraid to go over 40 psi as i drive fast on the highway here frequently. I also don't wanna go too low as Egypt is the land of potholes and I don't want to get any sidewall bubbles! Can anyone help please?
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11-30-2009, 12:46 PM	#2
HGabr Registered 0 Rep 4 Posts Drives: 330i - e90 Join Date: Aug 2009 Location: Cairo - Egypt iTrader: (0)	Bump, anyone help?
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11-30-2009, 04:49 PM	#3
Peter@VMRWheels BimmerPost Supporting Vendor 93 Rep 685 Posts Drives: P85D Join Date: Mar 2009 Location: Irvine, CA iTrader: (0)	If your door sticker recommends 34/42 then I don't see a reason why you shouldn't follow that, unless maybe you have aftermarket wheels. PSI only one of many reasons for sidewall bubble problems.
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11-30-2009, 11:34 PM	#4
HGabr Registered 0 Rep 4 Posts Drives: 330i - e90 Join Date: Aug 2009 Location: Cairo - Egypt iTrader: (0)	But isn't 42 psi a bit too much? I do have oem wheels but as a single runflat tire runs around 500 bucks here in egypt! I don't wanna ruin them. If someone can post their oem 330 17 inch recommended pressure that would be great!
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11-30-2009, 11:51 PM	#5
2M Colonel 503 Rep 2,200 Posts Drives: Mineral Grey M2 Join Date: Sep 2009 Location: New York iTrader: (2)	off topic but how much horses are the current 330's rated thanks? __________________ E9X Picture Game: 8 points: (High visibility jacket; Strip Club; Pizzeria; Sobriety Test; E9x dressed for Halloween, Billiards, Oil Change, Orange Cone)
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12-01-2009, 08:46 AM	#7
demosthenes Major 48 Rep 1,162 Posts Drives: E90 328i 6MT Join Date: Dec 2006 Location: SF Bay Area iTrader: (0) Garage List 2008 328i sedan [0.00]	You should use the recommended pressures, which depend on what speed you drive. The owner's manual recommends higher pressures for high speeds. If you drive at high speeds for prolonged periods, you should use BMW's high speed recommendations. If you drive at high speeds frequently but only for short bursts, you could use something in between the normal and high speed recommendation. If not, you should use their normal recommendation or a few pounds higher. Check the sidewalls of your tires for the maximum recommended pressure. BMW's recommendations are always below the maximum.
	Appreciate 0 Quote