I have been to tirerack.com and can't find what the recommended air pressure is for the tires on a 330i with the performance package. What do you guys/gals suggest?
I have been to tirerack.com and can't find what the recommended air pressure is for the tires on a 330i with the performance package. What do you guys/gals suggest?
The BMW-recommended pressures are listed in two places: driver-side door placard & in the manual. I'll make it three places:
• 225/40ZR18 - 32 psi (39 psi for max weight)
• 255/35ZR18 - 38 psi (46 psi for max weight)
Last edited by Crickett; 03-09-2011 at 07:32 AM. Reason: added heavy inflation pressures
Travis | ’04 ZHP sedan 6MT | WeĭssLĭcht AEs | BMW clears | Plasti-Dipped grilles | BMW Perf. intake | TMS Power Pulleys | DIY aux-in | !CDV
Sprint Booster w/Sport button | Mich PS AS4 (245 sq) | M3 front sway | Z4M LCABs | Beisan VANOS rebuild | GAS DISA rebuild | BMW diag. PC
Thanks, I will be picking up mine this weekend and want to make sure I am driving 1300 miles on the correct tire pressure. Thanks again.
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Quik, congrats on getting the 330 ZHP.
Travis | ’04 ZHP sedan 6MT | WeĭssLĭcht AEs | BMW clears | Plasti-Dipped grilles | BMW Perf. intake | TMS Power Pulleys | DIY aux-in | !CDV
Sprint Booster w/Sport button | Mich PS AS4 (245 sq) | M3 front sway | Z4M LCABs | Beisan VANOS rebuild | GAS DISA rebuild | BMW diag. PC
Personally, I think 32 is too low, and running more in the rear with a staggered setup means even more understeer than the car already has built-in, way, way too much.
UUC has a good tuning guide on their site which is impossible to find, but here's a direct link. It shows how different changes, including tire pressure, effect handling characteristics...
Setup of the Sway Barbarian
Jeff
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Travis | ’04 ZHP sedan 6MT | WeĭssLĭcht AEs | BMW clears | Plasti-Dipped grilles | BMW Perf. intake | TMS Power Pulleys | DIY aux-in | !CDV
Sprint Booster w/Sport button | Mich PS AS4 (245 sq) | M3 front sway | Z4M LCABs | Beisan VANOS rebuild | GAS DISA rebuild | BMW diag. PC
I run 36.5 front and 39.5 rear at driving temps. Never had uneven tire wear from it at all. and i run 235/255, but also ran 235/265 on same pressures.
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Last edited by Mtnman; 03-09-2011 at 08:15 PM.
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09 135i Msport 6mt
04 330i ZHP (sold)
David