|
|
|
KEEP M3POST ALIVE BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER LINK! |
Post Reply |
|
Thread Tools | Search this Thread |
05-31-2012, 11:13 AM | #1 |
Registered
6
Rep 4
Posts |
Correct Tire Pressure for 19 Inch Wheels
I recently purchased a used 2008 M3 e92 with 19 inch wheels but the door jam has the tire pressures for 18 inch wheels. Apparently the wheels were replaced at some point. Does anyone know the correct pressures for 19 inch wheels?
|
05-31-2012, 11:59 AM | #3 |
You got my money?
3013
Rep 4,593
Posts
Drives: Ice Cream Truck
Join Date: Jul 2011
Location: ///OC
|
My door jam says 35 front and 36 rear. comp edition here though.
__________________
2022 G80 M3 Competition X / 2020 Range Rover Sport P525 / 2023 Ford Raptor
|
Appreciate
0
|
05-31-2012, 12:05 PM | #4 |
BimmerPost Supporting Vendor
307
Rep 13,093
Posts
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas
iTrader: (45)
Garage List 2013 Nissan GTR [0.00]
2019 Sierra Denali ... [0.00] 1999 Nissan Silvia [0.00] 1999 Nissan Skyline ... [0.00] 1998 Toyota Supra [0.00] |
|
Appreciate
0
|
06-23-2012, 05:25 AM | #5 |
Major
507
Rep 1,345
Posts
Drives: 04 Z4, 18 X3 M40i
Join Date: Nov 2010
Location: Ottawa and Collelongo (AQ) Italy
|
Mine has an additional sticker for speeds over 100mph (Comp Edition) 44psi
|
Appreciate
0
|
06-23-2012, 10:51 AM | #7 |
ENTHUSIAST
135
Rep 2,097
Posts
Drives: 2010 Porsche Cayman
Join Date: Apr 2011
Location: Philadelphia
|
ditto
__________________
"what I'm driving here...is an ending." Jeremy Clarkson
2010 Carrara White Porsche Cayman 6mt 2014 Whiteout Toyota GT-86 6mt(Sold 05/23/15) 2011 Alpine White BMW M3 6mt ZCP Coupe(forced retirement 06/06/14) 2008 Alpine White BMW 328i 6mt Coupe(retired 06/21/11) |
Appreciate
0
|
06-29-2012, 12:21 AM | #8 |
First Lieutenant
31
Rep 321
Posts |
Just want to put this out there for everyone asking about different tire pressures based on wheel and tire size. PSI = pounds per square inch(yes... I'm sure you all know this), its a ratio. So 35 psi is the same "tire pressure" no matter what size wheel or tire you have. Lets do some simple(not realistic tire) numbers for everyone.
Lets say the internal area of your tire is 100 square inches, to get 10 PSI you put in 10 lbs of pressure. Now lets say you go to a wider tire with the same height. The internal area will naturally increase, to say 120 square inches. To get 10 PSI you now need 12 lbs of pressure. Since PSI is a pressure to area ratio, it automatically takes care of the pressure increase/decrease for a difference in tire size. The difference in PSI from car to car is based on the load carried as well as the purpose of the car. But in general most cars range from 28 PSI to 36 PSI. But as others have said... |
Appreciate
0
|
06-29-2012, 02:24 PM | #9 | |
Brigadier General
97
Rep 3,246
Posts |
Quote:
__________________
mods: track ready stuff
|
|
Appreciate
0
|
07-01-2012, 12:30 PM | #10 |
First Lieutenant
41
Rep 310
Posts |
We're talking about the 220M's, right?
Mine says: Front (245/35R19): 33 PSI (or 41 PSI for > 100 mph)The tires on it were PS2's. If the previous owner switched wheels/tires, be warned that your speedometer could be off (unless he had it re-calibrated). You can estimate the error by going to tirerack and checking their #of rotation per mile spec. The ratio between this for the old and new tires will tell you approx how low/high the speedo will tend to read. For instance, if the new tires are smaller (rotate more times per mile), then your speedo will say you're going faster than you really are. Obviously, going to a larger-radius tire is the case to watch out for. Oh, and word has it speed is computed based on the rear wheels.
__________________
|
Appreciate
0
|
07-01-2012, 12:49 PM | #11 | |
First Lieutenant
41
Rep 310
Posts |
Quote:
Inflation of non-OEM sizes?
__________________
|
|
Appreciate
0
|
07-01-2012, 02:18 PM | #12 |
Major General
4969
Rep 6,854
Posts |
Yes 220M's. Weird, my manual says 35 all around and 35/36 for speeds over 100. Door jam says 35 all around as well.
|
Appreciate
0
|
07-01-2012, 03:32 PM | #13 | |
First Lieutenant
41
Rep 310
Posts |
Quote:
I'm looking at 2008. Both manual and door jam say 33/35 for me. Maybe they changed it to get a bit more understeer?
__________________
Last edited by Drifty//; 07-01-2012 at 03:37 PM.. |
|
Appreciate
0
|
07-07-2012, 11:20 AM | #16 |
Lieutenant
42
Rep 486
Posts |
i have factory 19" 220m wheels.
the door jamb says 35/35.the manual says 35f/36r.i know it's just one pound different for the rear,but which one would you go with? it's good to have important problems like this... |
Appreciate
0
|
07-07-2012, 10:54 PM | #17 |
Automobilist
395
Rep 2,632
Posts |
I run 36 psi all around. Comp wheels and contis. I don't think you are going to notice much difference between 35 and 36 psi on the street. Robbiedawg is right - these are clearly first world problems. Cheers!
|
Appreciate
0
|
01-03-2013, 07:47 PM | #19 |
First Lieutenant
11
Rep 367
Posts |
__________________
BMW M3 E92 2011 ZCP 6MT
- Upgrades:MS Stage 2 Intake + Turner Test Pipes + BPM Stage 2 Tune with Coding; Fox Red Novillo/Carbon Leather/Competition Package/Premium Package 2/Convenience Package /Enhanced Premium Sound/Satelite Radio |
Appreciate
0
|
01-03-2013, 08:42 PM | #20 |
First Lieutenant
11
Rep 367
Posts |
Mine is an M3 E92 2011 Competition Package and states on the door:
F35/R36 Over 100mph F41/R44
__________________
BMW M3 E92 2011 ZCP 6MT
- Upgrades:MS Stage 2 Intake + Turner Test Pipes + BPM Stage 2 Tune with Coding; Fox Red Novillo/Carbon Leather/Competition Package/Premium Package 2/Convenience Package /Enhanced Premium Sound/Satelite Radio |
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|