Tire pressure M2CS vs M2C

kart driver · 05-02-2021, 02:58 AM

Any idea why the tire pressure is different?

2.6 vs 2.4 (partial load)

2.8 & 2.8 vs 2.7 & 2.9 (full load )

CS:

Comp:

Hedoniste · 05-02-2021, 04:21 AM

Interesting… Maybe an attempt to reduce CO2 emission?
I will try 2.4 instead of 2.6. Maybe the car will be a bit more composed on bad roads.

Ilikemike · 05-02-2021, 08:05 AM

Quote:

Originally Posted by Hedoniste

Interesting… Maybe an attempt to reduce CO2 emission?
I will try 2.4 instead of 2.6. Maybe the car will be a bit more composed on bad roads.

Probably because the tires are different, cup 2 vs SS. And, I believe the CS has star spec cup 2's...

Hedoniste · 05-02-2021, 11:02 AM

Quote:

Originally Posted by Ilikemike

Quote:

Originally Posted by Hedoniste

Interesting… Maybe an attempt to reduce CO2 emission?
I will try 2.4 instead of 2.6. Maybe the car will be a bit more composed on bad roads.

Probably because the tires are different, cup 2 vs SS. And, I believe the CS has star spec cup 2's...

Mine has PSS (Cup2 were optional).

Ilikemike · 05-02-2021, 05:21 PM

Quote:

Originally Posted by Hedoniste

Mine has PSS (Cup2 were optional).

Interesting, my last car was the M2 C (23020), which also ran PSS, and the tire pressure listed on the label at the bottom of the door sill was 32 PSI which is exactly the same as my CS. It must have something to do with European requirements vs Canada... or as mentioned earlier, fuel economy ratings.

Rumbloki · 05-02-2021, 05:37 PM

It's just a baseline anyway. I like 35f/32r.
Larger tires require less air and the rears don't work as hard laterally. Lower PSI also helps with launch.

medphysdave · 05-02-2021, 06:39 PM

In the CS manual there is a lot of detail about tire pressure with C and CS. Pressure is different depending on intended speed as well. I think under 100mph and over 100mph

Ilikemike · 05-02-2021, 06:58 PM

Quote:

Originally Posted by medphysdave

In the CS manual there is a lot of detail about tire pressure with C and CS. Pressure is different depending on intended speed as well. I think under 100mph and over 100mph

Same as the M2 C....or PSS

Davil · 05-02-2021, 09:18 PM

Quote:

Originally Posted by Ilikemike

Quote:

Originally Posted by Hedoniste

Mine has PSS (Cup2 were optional).

Interesting, my last car was the M2 C (23020), which also ran PSS, and the tire pressure listed on the label at the bottom of the door sill was 32 PSI which is exactly the same as my CS. It must have something to do with European requirements vs Canada... or as mentioned earlier, fuel economy ratings.

You don't get the BMW sticker though right?
Then again it's 2.6 2.6 here for Cup2Cs.
Who knows?

Ilikemike · 05-03-2021, 10:28 AM

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My CS sticker.
2.6 bar = 37.71 PSI, assuming the 2.6 bar is cold temp
it seems a bit odd I'm at 32 PSI or 2.21 bar...
I wasn't provided with a CS manual....
just a M2 manual.

Higgs Boson · 05-03-2021, 01:15 PM

I set literally everything I own to 35psi cold in all 4 tires (except for HD trucks) and its always been just fine.

Unless you're on track (setting hot temps, btw) don't sweat the small stuff.

05-02-2021, 02:58 AM	#1
kart driver Captain 568 Rep 658 Posts Drives: M & GT Join Date: Jul 2018 Location: Europe iTrader: (0)	Tire pressure M2CS vs M2C Any idea why the tire pressure is different? 2.6 vs 2.4 (partial load) 2.8 & 2.8 vs 2.7 & 2.9 (full load ) CS: Comp:
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05-02-2021, 04:21 AM	#2
Hedoniste Lieutenant Colonel 3847 Rep 1,675 Posts Drives: M2 CS \| M135i Join Date: Feb 2009 Location: Swiss Alps iTrader: (0) Garage List 2020 BMW M2 CS [10.00]	Interesting… Maybe an attempt to reduce CO2 emission? I will try 2.4 instead of 2.6. Maybe the car will be a bit more composed on bad roads. __________________ 2020 M2 CS DCT 2021 M135i xDrive ex: 18 M3 DCT ZCP \| 15 M3 DCT \| 11 M3 Coupe 6MT ZCP \| 07 M Coupe
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05-02-2021, 05:37 PM	#6
Rumbloki Second Lieutenant 176 Rep 201 Posts Drives: Faster than most Join Date: Oct 2020 Location: ATX iTrader: (0)	It's just a baseline anyway. I like 35f/32r. Larger tires require less air and the rears don't work as hard laterally. Lower PSI also helps with launch. __________________ 2021 M2C, HS, 6MT, ZED, 763M w/spinners, AA single, AA axle back, Turner High Kick, Turner shifter support, M pedals, honeycomb reflector delete, BC Racing DS series
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05-02-2021, 06:39 PM	#7
medphysdave Brigadier General 4610 Rep 4,708 Posts Drives: M2 CS \| 85 of 592 Join Date: Apr 2015 Location: Charlotte, NC iTrader: (3)	In the CS manual there is a lot of detail about tire pressure with C and CS. Pressure is different depending on intended speed as well. I think under 100mph and over 100mph
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05-03-2021, 10:28 AM	#10
Ilikemike Lieutenant 254 Rep 551 Posts Drives: E92: F82: M2C: M2 CS (Now) Join Date: Sep 2010 Location: Port Moody B.C iTrader: (0)	My CS sticker. 2.6 bar = 37.71 PSI, assuming the 2.6 bar is cold temp it seems a bit odd I'm at 32 PSI or 2.21 bar... I wasn't provided with a CS manual.... just a M2 manual. Last edited by Ilikemike; 05-03-2021 at 11:55 AM..
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05-03-2021, 01:15 PM	#11
Higgs Boson In the Details 1812 Rep 867 Posts Drives: Yes Join Date: Jan 2020 Location: Texas Hill Country iTrader: (0) Garage List 2020 AMG GTR [0.00] 2022 R8 Quattro Spyder [0.00] 2023 X5M50 [0.00] 2023 718 Spyder [0.00] 2024 Silverado [0.00] 2024 Civic Type R [0.00]	I set literally everything I own to 35psi cold in all 4 tires (except for HD trucks) and its always been just fine. Unless you're on track (setting hot temps, btw) don't sweat the small stuff.
	Appreciate 0 Quote