F30 alloys on E93 tyre pressures?

apollo · 08-19-2015, 12:14 PM

Having just changed the alloys and tyre's on my 2011 E93 330d to the F30 19" 403s running 225/40/19 and 255/35/19 Goodyear RFT anyone got any idea as to what the tyre pressures should be?

Digitalize · 08-19-2015, 12:48 PM

Exactly the same.

Aragorn30d · 08-19-2015, 02:03 PM

use whatever pressures are specificed on your door pillar for those tyre sizes.

apollo · 08-20-2015, 06:48 AM

Exactly the same as 255/30/19 and 225/35/19? even tho the profile on these are higher?

Jase 320d · 08-20-2015, 03:50 PM

Suprised the tyres your running arent rubbing.

Id change the tyres to the correct profile and run 35psi front and 37psi rear

apollo · 08-20-2015, 04:22 PM

Quote:

Originally Posted by Jase 320d

Suprised the tyres your running arent rubbing.

Id change the tyres to the correct profile and run 35psi front and 37psi rear

As I have just purchased them complete with new Goodyear RFTs I'm not really looking to purchase new tyres for them, there is no rubbing and I'm using with 12mm spacers on front and 15mm on rear which is actually only 7mm as offset is 8mm different to begin with. According to the sticker on the door shut 225/35/19 is 2.8 bar (40.6psi) and 255/30/19 3.3 bar (48psi). With higher profile should the pressure be higher or lower?

Jase 320d · 08-20-2015, 04:59 PM

That seems rediculously high

35 front
37 rear is what id go with

Are you not looking at the fully loaded psi rating?

apollo · 08-20-2015, 05:18 PM

No mate thats the pressures for 2 people even the 225/40/18 & 255/35/18 are 2.4 bar & 2.8 bar

Jase 320d · 08-20-2015, 05:30 PM

I wouldnt fancy running that

Most on here run around 33-35 psi front

35-38 rear

whateva411 · 08-20-2015, 05:49 PM

On my f32 on 19s I'm currently running 37psi all around but it feels a touch high. May drop to 35 all around! Try that?

apollo · 08-20-2015, 05:58 PM

Cheers mate will try that

Digitalize · 08-20-2015, 06:42 PM

Run 40/45 in mine. Should all be somewhere around 40.

Realistically the small tyre size changes won't effect the pressure at all, especially as pressure isn't a measure of volume. 40PSI is always 40PSI no matter what tyre/wheel combination.

apollo · 08-21-2015, 04:27 AM

Cheers mate think I will go with the higher pressures you suggest as I have also read this can help with the inside rear wheel scrubbing.

08-19-2015, 12:14 PM	#1
apollo Second Lieutenant 30 Rep 210 Posts Drives: F82 Sakhir Orange Join Date: Aug 2007 Location: N Ireland iTrader: (1)	F30 alloys on E93 tyre pressures? Having just changed the alloys and tyre's on my 2011 E93 330d to the F30 19" 403s running 225/40/19 and 255/35/19 Goodyear RFT anyone got any idea as to what the tyre pressures should be?
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08-19-2015, 12:48 PM	#2
Digitalize Photographer 412 Rep 2,643 Posts Drives: 320D Join Date: Jun 2013 Location: UK iTrader: (0)	Exactly the same.
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08-19-2015, 02:03 PM	#3
Aragorn30d Lieutenant Colonel 175 Rep 1,596 Posts Drives: E90 330d Join Date: Mar 2015 Location: Fife iTrader: (0)	use whatever pressures are specificed on your door pillar for those tyre sizes.
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08-20-2015, 06:48 AM	#4
apollo Second Lieutenant 30 Rep 210 Posts Drives: F82 Sakhir Orange Join Date: Aug 2007 Location: N Ireland iTrader: (1)	Exactly the same as 255/30/19 and 225/35/19? even tho the profile on these are higher?
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08-20-2015, 03:50 PM	#5
Jase 320d Wheelbarrow Edition 60 Rep 1,608 Posts Drives: Arctic 320d Join Date: Sep 2013 Location: Dumfries and Galloway iTrader: (1)	Suprised the tyres your running arent rubbing. Id change the tyres to the correct profile and run 35psi front and 37psi rear
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08-20-2015, 04:59 PM	#7
Jase 320d Wheelbarrow Edition 60 Rep 1,608 Posts Drives: Arctic 320d Join Date: Sep 2013 Location: Dumfries and Galloway iTrader: (1)	That seems rediculously high 35 front 37 rear is what id go with Are you not looking at the fully loaded psi rating?
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08-20-2015, 05:18 PM	#8
apollo Second Lieutenant 30 Rep 210 Posts Drives: F82 Sakhir Orange Join Date: Aug 2007 Location: N Ireland iTrader: (1)	No mate thats the pressures for 2 people even the 225/40/18 & 255/35/18 are 2.4 bar & 2.8 bar
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08-20-2015, 05:30 PM	#9
Jase 320d Wheelbarrow Edition 60 Rep 1,608 Posts Drives: Arctic 320d Join Date: Sep 2013 Location: Dumfries and Galloway iTrader: (1)	I wouldnt fancy running that Most on here run around 33-35 psi front 35-38 rear
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08-20-2015, 05:49 PM	#10
whateva411 Lieutenant 31 Rep 432 Posts Drives: 2014 F32 430d MSport EB Join Date: May 2011 Location: west mids iTrader: (0)	On my f32 on 19s I'm currently running 37psi all around but it feels a touch high. May drop to 35 all around! Try that?
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08-20-2015, 05:58 PM	#11
apollo Second Lieutenant 30 Rep 210 Posts Drives: F82 Sakhir Orange Join Date: Aug 2007 Location: N Ireland iTrader: (1)	Cheers mate will try that
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08-20-2015, 06:42 PM	#12
Digitalize Photographer 412 Rep 2,643 Posts Drives: 320D Join Date: Jun 2013 Location: UK iTrader: (0)	Run 40/45 in mine. Should all be somewhere around 40. Realistically the small tyre size changes won't effect the pressure at all, especially as pressure isn't a measure of volume. 40PSI is always 40PSI no matter what tyre/wheel combination.
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08-21-2015, 04:27 AM	#13
apollo Second Lieutenant 30 Rep 210 Posts Drives: F82 Sakhir Orange Join Date: Aug 2007 Location: N Ireland iTrader: (1)	Cheers mate think I will go with the higher pressures you suggest as I have also read this can help with the inside rear wheel scrubbing.
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