TIRE PRESSURES on 19x8.5 and 19x10 with 235/35 and 260/30

uhaulball · 11-08-2006, 01:45 AM

Like the title states. My order of wheels are coming in this monday with those specs.

I would like to know what is the suggested tire pressure on the tires? I don't know much about wheels since these would be my first aftermarket set.

I prefer stiffer pressure so i can protect the lip of the wheels better; they are wheels with polished lip.

Thanks

kevE90 · 11-08-2006, 02:34 AM

you and me always up late. still in LI?

did you order the Lexion? silver, black or chrome? I think the silver looks good w/polished lip. I prefer BBS but for that style it'd cost double I guess.

uhaulball · 11-08-2006, 03:05 AM

im kind of an insomniac lol

study and wander e90post late at night, probably more of the latter.

ya im still in LI. well right now im in upstate NY

uhaulball · 11-08-2006, 09:41 AM

no help from anyone?

remmib · 11-08-2006, 09:47 AM

I've got 40 psi in mine

mds82 · 11-08-2006, 09:59 AM

I'm running 30 front, 33ish rear in my eagle f1's gs-d3. i tired harder one day and i thought the ride was getting very bumpy and still, running them at this pressurei found them to have the greatest grip and comfort.

Soon though i will be changing back to my stock tires for the winter

Hunter399 · 11-08-2006, 01:52 PM

I keep mine at 40 all around

uhaulball · 11-08-2006, 03:43 PM

howd u guys determine the psi. is there a spec recommended for the tire width.

i know for oem/stock, they have numbers on the door pillars on a sticker.

obLu · 11-08-2006, 03:44 PM

Chalk line or wear triangle method.

There's no "right" pressure, it's dependent on your driving style and the specific tire (I almost got all snobbery and typed tyre ...).

So, what you do is fill it to a base line cold. And then you either draw a line with chalk perpendicular across the tread and onto the sidewall. Or you just look for the little triangles that point toward the tread block.

Now go drive around a bit, take some corners as hard as you like to etc. Now go back and look at the scrub line on the tread block or your chalk line. You want that to *just* intersect the very tip of those triangles. If it doesn't make it to the triangle, you're over inflated, if it goes past the tip into the body of the triangle you're under inflated.

Hopefully you can see what you're doing here ... you're getting the pressure compromise based on the tire and your driving style. If you don't plan to corner hard you can drop the pressure a little for comfort.

It's why you air up a little if you're planning on autocrossing/track day etc. There's no one 'this is the perfect pressure' for any tire because it all depends on how you're using it.

One other thing, if it rains a lot where you're at an under inflated tire is much more prone to hydroplaning than an over inflated tire so go on the high side.

11-08-2006, 01:45 AM	#1
uhaulball Brigadier General 195 Rep 4,163 Posts Drives: e90 330xi Join Date: Dec 2005 Location: Long Island, NY iTrader: (11)	TIRE PRESSURES on 19x8.5 and 19x10 with 235/35 and 260/30 Like the title states. My order of wheels are coming in this monday with those specs. I would like to know what is the suggested tire pressure on the tires? I don't know much about wheels since these would be my first aftermarket set. I prefer stiffer pressure so i can protect the lip of the wheels better; they are wheels with polished lip. Thanks __________________ '06 bsm e90 330xi : 18" VMR CSL : KW V3 : GruppeM Rep Intake : UUC/Corsa Catback : Hartge Lip : ACS Roof Spoiler OEM CF Trunk Spoiler : CF Emblems. Pillars. Mirror. Grille : LUXER12 led plate : V1 Hardwired : OG.longtran e90post sticker! circa 2005
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11-08-2006, 02:34 AM	#2
kevE90 Lieutenant 21 Rep 574 Posts Drives: F8x Join Date: May 2006 Location: queens, ny iTrader: (0)	you and me always up late. still in LI? did you order the Lexion? silver, black or chrome? I think the silver looks good w/polished lip. I prefer BBS but for that style it'd cost double I guess.
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11-08-2006, 03:05 AM	#3
uhaulball Brigadier General 195 Rep 4,163 Posts Drives: e90 330xi Join Date: Dec 2005 Location: Long Island, NY iTrader: (11)	im kind of an insomniac lol study and wander e90post late at night, probably more of the latter. ya im still in LI. well right now im in upstate NY __________________ '06 bsm e90 330xi : 18" VMR CSL : KW V3 : GruppeM Rep Intake : UUC/Corsa Catback : Hartge Lip : ACS Roof Spoiler OEM CF Trunk Spoiler : CF Emblems. Pillars. Mirror. Grille : LUXER12 led plate : V1 Hardwired : OG.longtran e90post sticker! circa 2005
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11-08-2006, 09:41 AM	#4
uhaulball Brigadier General 195 Rep 4,163 Posts Drives: e90 330xi Join Date: Dec 2005 Location: Long Island, NY iTrader: (11)	no help from anyone? __________________ '06 bsm e90 330xi : 18" VMR CSL : KW V3 : GruppeM Rep Intake : UUC/Corsa Catback : Hartge Lip : ACS Roof Spoiler OEM CF Trunk Spoiler : CF Emblems. Pillars. Mirror. Grille : LUXER12 led plate : V1 Hardwired : OG.longtran e90post sticker! circa 2005
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11-08-2006, 09:47 AM	#5
remmib General 1568 Rep 29,202 Posts Drives: 2013 F10 520d M-Sport Join Date: Feb 2006 Location: Norway iTrader: (0)	I've got 40 psi in mine __________________ F10 520d M-Sport Alpine White \| HRE P43SC 20x9+20x11 \| Michelin PSS 255/35+295/30 \| KW V3 Coilover \| M5 Front Sway Bar + M550d Rear Sway Bar \| 3DDesign Front Lip \| BMW M Performance CF Spoiler \| BMW M Performance Diffuser \| BMW M Performance Black Grills \| BMW M Performance Pedals \|
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11-08-2006, 09:59 AM	#6
mds82 Major General 364 Rep 5,842 Posts Drives: 2006 325xi Join Date: Aug 2005 Location: South Central Connecticut iTrader: (40) Garage List 2006 325xi Snow Pics [0.00] 2006 BMW 325xi [0.00]	I'm running 30 front, 33ish rear in my eagle f1's gs-d3. i tired harder one day and i thought the ride was getting very bumpy and still, running them at this pressurei found them to have the greatest grip and comfort. Soon though i will be changing back to my stock tires for the winter
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11-08-2006, 01:52 PM	#7
Hunter399 Major General 323 Rep 8,091 Posts Drives: F90M5 Join Date: Apr 2005 Location: Houston, TX iTrader: (33)	I keep mine at 40 all around
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11-08-2006, 03:43 PM	#8
uhaulball Brigadier General 195 Rep 4,163 Posts Drives: e90 330xi Join Date: Dec 2005 Location: Long Island, NY iTrader: (11)	howd u guys determine the psi. is there a spec recommended for the tire width. i know for oem/stock, they have numbers on the door pillars on a sticker. __________________ '06 bsm e90 330xi : 18" VMR CSL : KW V3 : GruppeM Rep Intake : UUC/Corsa Catback : Hartge Lip : ACS Roof Spoiler OEM CF Trunk Spoiler : CF Emblems. Pillars. Mirror. Grille : LUXER12 led plate : V1 Hardwired : OG.longtran e90post sticker! circa 2005
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11-08-2006, 03:44 PM	#9
obLu Major 50 Rep 1,159 Posts Drives: 330i 6MT ZSP Join Date: Jun 2005 Location: Kirkland, WA, USA iTrader: (1)	Chalk line or wear triangle method. There's no "right" pressure, it's dependent on your driving style and the specific tire (I almost got all snobbery and typed tyre ...). So, what you do is fill it to a base line cold. And then you either draw a line with chalk perpendicular across the tread and onto the sidewall. Or you just look for the little triangles that point toward the tread block. Now go drive around a bit, take some corners as hard as you like to etc. Now go back and look at the scrub line on the tread block or your chalk line. You want that to just intersect the very tip of those triangles. If it doesn't make it to the triangle, you're over inflated, if it goes past the tip into the body of the triangle you're under inflated. Hopefully you can see what you're doing here ... you're getting the pressure compromise based on the tire and your driving style. If you don't plan to corner hard you can drop the pressure a little for comfort. It's why you air up a little if you're planning on autocrossing/track day etc. There's no one 'this is the perfect pressure' for any tire because it all depends on how you're using it. One other thing, if it rains a lot where you're at an under inflated tire is much more prone to hydroplaning than an over inflated tire so go on the high side.
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