[GoneIn4Secs]

Spoke to the wheels guy at the dealer today, and he said i should keep the tire pressure to about 4 psi less than the max thats listed on the tires

I have 763m wheels w pilot sport cup 2, what should i keep the pressure at?

You non Canadian ppl are lucky, my tpms is worthless, doesnt even show any numbers or temperature reading

[PLF69]

I plan on buying Cup 2 also when my PSS are worn and I was thinking of runnin them at the normal 35psi pressure on the street and letting them heat up to 37-38 at the track and see from there.

The lower your going to run them the more confortable they will be. I think its depends what your after.

I was also upset at first about the canadian speed sensor tpms but afterwards I got over it because a lot a ppl can't change mode and get stuck in comfort at the track because of the pressure variation and we don't have this problem.

[Anthony1s]

Why doesn't Canada TPMS work?

[PLF69]

Originally Posted by Anthony1s

Why doesn't Canada TPMS work?

Physical TPMS sensors are only mandatory in the US, our pressure monitoring system is based on the abs sensors and simpler.

[Anthony1s]

Originally Posted by PLF69

Physical TPMS sensors are only mandatory in the US, our pressure monitoring system is based on the abs sensors and simpler.

Ah, I wonder if it's possible to code them into the car by doing the reverse of what people do to code them out.

[GoneIn4Secs]

Originally Posted by PLF69

I plan on buying Cup 2 also when my PSS are worn and I was thinking of runnin them at the normal 35psi pressure on the street and letting them heat up to 37-38 at the track and see from there.

The lower your going to run them the more confortable they will be. I think its depends what your after.

I was also upset at first about the canadian speed sensor tpms but afterwards I got over it because a lot a ppl can't change mode and get stuck in comfort at the track because of the pressure variation and we don't have this problem.

If you let it down too low, then your wheels can get damaged when hitting pot holes

[nioh_lbbm2]

Originally Posted by GoneIn4Secs

Spoke to the wheels guy at the dealer today, and he said i should keep the tire pressure to about 4 psi less than the max thats listed on the tires

I have 763m wheels w pilot sport cup 2, what should i keep the pressure at?

You non Canadian ppl are lucky, my tpms is worthless, doesnt even show any numbers or temperature reading

your dealership needs to fire that guy you talked to.

NEVER inflate your tires to anywhere NEAR the MAX psi listed on the tire itself. That is the MAX pressure that can be exerted on the tire from road imperfections, bumps, etc. The normal operating PSI is listed on the door jam on the driver side. 35PSI on cold tires. the owners manual has a different psi for higher speeds

[AlpsRider]

Originally Posted by nioh_lbbm2

your dealership needs to fire that guy you talked to.

NEVER inflate your tires to anywhere NEAR the MAX psi listed on the tire itself. That is the MAX pressure that can be exerted on the tire from road imperfections, bumps, etc. The normal operating PSI is listed on the door jam on the driver side. 35PSI on cold tires. the owners manual has a different psi for higher speeds

Yeah, that guy at the dealership is nuts. I run 35. I check the tires in the morning in the garage. The sun will increase the pressure so it's better to check them when not in the sun.

[nachob]

Originally Posted by nioh_lbbm2

your dealership needs to fire that guy you talked to.

NEVER inflate your tires to anywhere NEAR the MAX psi listed on the tire itself. That is the MAX pressure that can be exerted on the tire from road imperfections, bumps, etc. The normal operating PSI is listed on the door jam on the driver side. 35PSI on cold tires. the owners manual has a different psi for higher speeds

This!

[DanG]

The recommend tire pressure for road use is 35 psi all around on cold tires.

You need to be a little careful. If some of the car has been sitting in the sun, the tires exposed to the sun will read higher than those on the other side.

[F87source]

Originally Posted by Anthony1s

Ah, I wonder if it's possible to code them into the car by doing the reverse of what people do to code them out.

I heard it requires new modules which costs a crap load of money to retrofit. I'll do some more digging because this would be so handy on the track to just look at a live feed from the sensors instead of manually checking each tire. Then all I would have to do is measure tire surface temps with an IR cam for camber adjustments.

[Poochie]

Originally Posted by Anthony1s

Ah, I wonder if it's possible to code them into the car by doing the reverse of what people do to code them out.

All 2018+ Canadian spec BMWs now have the same exact TPMS system as the US vehicles, including the specific wheel sensors.

They no longer utilize the ineffective ABS algorithm form of measurement, as before.

All 2018+ Canada spec vehicles just needs to be coded to include the temperature, as it is decoded, standard, for some strange reason..


Enabled TPMS on Canadian Car (2018 F30) https://f30.bimmerpost.com/forums/sh....php?t=1575298

[F87source]

Originally Posted by Poochie

All 2018+ Canadian spec BMWs now have the same exact TPMS system as the US vehicles, including the specific wheels sensors.

They no longer utilize the ineffective ABS algorithms form of measurement, as before.

All 2018+ Canada spec vehicles just needs to be coded to include temperature, as it is decoded, standard, for some strange reason..


Enabled TPMS on Canadian Car (2018 F30) https://f30.bimmerpost.com/forums/sh....php?t=1575298

Dang it mines a 2017.

[SeanWRT]

I do 30psi cold (10+C or 50F+F shown by TPMS), 5 psi lower than bmw recommend. Want to do even a tad lower TBH, as it is getting warmer everyday.

Keep in mind, TPMS always reads some 2psi lower than physical gauge. Meaning real pressure should be about 32psi cold in my case when TPMS says 30.

Also, you need to lower tp especially when upgrading to wider and shorter tire, in order to offset the greater stiffness - a key but very often neglected factor to grip.

There is no wheel damage concern whatsoever from using a lower TP. The vertical deformation difference (easy maths) is too little to be noticeable.

MPG wouldn't suffer much if any either, because with our kind of car, MPG primarily depends on how you treat the pedal.

[jasonF30]

Originally Posted by Anthony1s

Why doesn't Canada TPMS work?

I'm in Canada, mine shows tire pressure and tire temperature.

[F87source]

Originally Posted by jasonF30

I'm in Canada, mine shows tire pressure and tire temperature.

You have the M2C so it probably was updated to have TPMS, you can tell by your valve stem if it is metal(TPMS) or plastic/rubber (No tpms).

[JustDrifting]

Originally Posted by DanG

The recommend tire pressure for road use is 35 psi all around on cold tires.

You need to be a little careful. If some of the car has been sitting in the sun, the tires exposed to the sun will read higher than those on the other side.

Appreciate an old thread, but just picked up as searching for pressures people use with Michelin Cup 2s. Bought from BMW dealer on the pallet, and pressures at c. 3.2 bar (guess over inflated for shipping).

Michelin recommend 37.725 PSI/ 2.6 Bar for the Cup 2s (specifically for the M2C) vs the 2.4 Bar for PSSs. So, I suspect 'it depends' on the rubber too and not quite so straightforward as just 'it's 35'?

[Rumbloki]

On the street I am running 35 front and 33 rear wit PSS.

[Maynard]

Manual shows 35/35 for M2C but 32/32 for M2CS, which probably means on the Cup 2's? This is for under 100mph, they up it to 41/42 (M2) and 41/41 (M2CS) for over 100mph. Pressures for track tires are usually a lot less than street tires; some of the Rcomps run best close to 30psi hot.

[vrooooom]

Originally Posted by F87source

You have the M2C so it probably was updated to have TPMS, you can tell by your valve stem if it is metal(TPMS) or plastic/rubber (No tpms).

I guess my CDN 2018 LCI also has no TMPS, it's rubber.

[Carrera2RS]

I run 32,32 with PSS, I always end up a few PSI less than 'recommended' for me tyre pressures are the same as damper settings part of the set up if you move away from non standard suspension. Plus dont forget they are catering for two or more very heavy people in cold weather at high speeds and better to be over inflated than under

[m2ss]

I run 33psi on my cup 2s (240)....