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[vincE92M3]

Recently switched over from 19" 220M to 18" APEX EC-7 wheels on my E92.

I'm running 275/35/18 all around.

Question: What tire pressures are recommended when moving from 19" to 18"?

I know my door sill recommends 35 psi for front and 36 psi for the rear, but does that still apply with my new tire size?

[elim11]

Originally Posted by vincE92M3

Recently switched over from 19" 220M to 18" APEX EC-7 wheels on my E92.

I'm running 275/35/18 all around.

Question: What tire pressures are recommended when moving from 19" to 18"?

I know my door sill recommends 35 psi for front and 36 psi for the rear, but does that still apply with my new tire size?

I ran 36-38psi for regular driving. Worked fine.

[vincE92M3]

Thanks! I'll try that.

[buddalun]

Originally Posted by vincE92M3

Recently switched over from 19" 220M to 18" APEX EC-7 wheels on my E92.

I'm running 275/35/18 all around.

Question: What tire pressures are recommended when moving from 19" to 18"?

I know my door sill recommends 35 psi for front and 36 psi for the rear, but does that still apply with my new tire size?

Vince,

I know this is OT, but when you switched from the 19" to 18" squared setup, did you notice an improvement in handling or fuel efficiency due to lower wheel weight? TIA

[kaede]

Originally Posted by buddalun

Vince,

I know this is OT, but when you switched from the 19" to 18" squared setup, did you notice an improvement in handling or fuel efficiency due to lower wheel weight? TIA

I am not OP, but i am guessing the weight savings from OEM 220M 19" to 18" square all around isnt going to be THAT significant. It might shave a couple lbs off, but definitely wont help too much with fuel efficiency.

As for wheels again, depends on the tires that OP was using before on the 19". if anything, the feel of the 19" might be even better. However, running square 275, i am sure OP will feel a much more neutral balance steering (much more turn in and "oversteering" feel) when compared to OEM setup.