Cooling 1M vs 135i & Z435is

[heli_ben]

The E92M3 and M1 have an extra coolant / air heat exchanger and utilise an 850W electric fan, whereas the 135i and Z435is use a 600W electric fan.

Well that's just a guess you understand, it certainly hasn't come from inside BMW! ;-)

[Dackelone]

The 1M and Z4_35is (I think) will have the same cooling system. You can see this when you look up the coolant capicity 10+L vs the 135is 8L's. Both should have the same higher output PPK radiator fan. 1,200+ watts(?)

I am not sure about what the M3 has for cooling. Apples to (Valencia)Oranges if you ask me.

[heli_ben]

Originally Posted by Dackelone

The 1M and Z4_35is (I think) will have the same cooling system. You can see this when you look up the coolant capicity 10+L vs the 135is 8L's. Both should have the same higher output PPK radiator fan. 1,200+ watts(?)

I am not sure about what the M3 has for cooling. Apples to (Valencia)Oranges if you ask me.

I guess you missed the sarcasm. The first post is fact from BMW, the M1 has the same cooling as the M3 - uprated from the 135i & Z435is.

[Dackelone]

ohh... I guess that wasn't so apparent to me(the sarcasm).

[MDORPHN]

Originally Posted by heli_ben

The E92M3 and M1 have an extra coolant / air heat exchanger and utilise an 850W electric fan, whereas the 135i and Z435is use a 600W electric fan.

Well that's just a guess you understand, it certainly hasn't come from inside BMW! ;-)

Encouraging information. Thanks!

Neil

[Dackelone]

Originally Posted by formula M

It's not an "M1",... it's called M coupe, or 1 series M coupe, or 1M....

I know that. That was a typo on my part(sorry). Kind of like I always spell THE as teh. My fingers are not as fast as my thoughts sometimes. lol

Dackel

[billspreston]

Discuss...

[MDORPHN]

Originally Posted by billspreston

Discuss...

Oil cooler on passenger side, auxilliary radiator (engine coolant) on drivers side. Same as provided on Z4 35is, 335is and as part of factory "performance power kit."

Neil

[SamS]

Looks like just a different angle to me. The driver's side angle is lower, which causes you to see more of the radiator.

[Dackelone]

Originally Posted by MDORPHN

Oil cooler on passenger side, auxilliary radiator (engine coolant) on drivers side. Same as provided on Z4 35is, 335is and as part of factory "performance power kit."

Neil

^+1! I could have not said it better myself Neil.

[marcel b]

Originally Posted by billspreston

Discuss...

+1 Nothing new here!

[JimBilly]

Does the Z4 35is also have a dry sump for the transmission?

I've seen cars with dry sump systems for engine oil, but not for the transmission. Can someone describe and explain BMW's transmission dry sump?

[marcel b]

Originally Posted by JimBilly

Does the Z4 35is also have a dry sump for the transmission?

I've seen cars with dry sump systems for engine oil, but not for the transmission. Can someone describe and explain BMW's transmission dry sump?

nope, it doesn't. The Z4 35is is only available with DCT if I am not mistaken. The 1M is only available with a manual.

[marcel b]

Originally Posted by Dackelone

The 1M and Z4_35is (I think) will have the same cooling system. You can see this when you look up the coolant capicity 10+L vs the 135is 8L's. Both should have the same higher output PPK radiator fan. 1,200+ watts(?)

I am not sure about what the M3 has for cooling. Apples to (Valencia)Oranges if you ask me.

it is 850Watt

[Dackelone]

Thanks Marcel. I knew it was larger - I just was not sure of the wattage. Thanks.

[JimBilly]

Originally Posted by marcel b

nope, it doesn't. The Z4 35is is only available with DCT if I am not mistaken. The 1M is only available with a manual.

Thanks, Marcel.

Does anyone know if the 135i or M3 6-speed manual transmissions use a dry sump system, or is it only the 1M?

[Novator]

I don't think either has a dry sump: http://en.wikipedia.org/wiki/BMW_S65

"A conventional wet-sump lubrication system with two oil pumps replaces the three-pump dry sump system used on the V10, further decreasing weight."

[treehacker]

I've read somewhere in the official specs that the 1M has a dry sump system.

[JimBilly]

From http://www.1addicts.com/forums/showthread.php?t=463733

6-speed manual transmission with dry sump cooling system and 3.15:1 final drive ratio, with M gearshift knob

So far, people have stated that the 135i 6-speed, M3 6-speed, and Z4 35is do not have a transmission dry sump.

I am wondering if the 135i 6-speed had a problem with lubricatin and that is why the dry sump was added to the 1M.

I believe dry sumps are more common for engine lubrication than for transmission lubrication. It was mentioned that the S65 engine had a dry sump. I used to have a C6 Z06 which had a dry sump for the engine. But I have not heard about cars with transmission dry sumps. So why is there a dry sump for the 1M transmission

[M3 Adjuster]

Originally Posted by JimBilly

From http://www.1addicts.com/forums/showthread.php?t=463733

6-speed manual transmission with dry sump cooling system and 3.15:1 final drive ratio, with M gearshift knob

So far, people have stated that the 135i 6-speed, M3 6-speed, and Z4 35is do not have a transmission dry sump.

I am wondering if the 135i 6-speed had a problem with lubricatin and that is why the dry sump was added to the 1M.

I believe dry sumps are more common for engine lubrication than for transmission lubrication. It was mentioned that the S65 engine had a dry sump. I used to have a C6 Z06 which had a dry sump for the engine. But I have not heard about cars with transmission dry sumps. So why is there a dry sump for the 1M transmission

This was discussed in another thread. The transmission comes from another car, i believe the M3 with DCT. The dry sump trans was for cooling the DCT. In the 1M ( which does not cone with DCT) this dry sump setup was utilized to simply keep the six speed cool. One of the issues with tracking a 135/335 has been high temps. This is another item to make sure the car is track worthy. Owners of c6 vettes for example, have found that adding trans coolers and oil coolers to that car are a "neccessory" for track usage.

[marcel b]

Originally Posted by M3 Adjuster

This was discussed in another thread. The transmission comes from another car, i believe the M3 with DCT. The dry sump trans was for cooling the DCT. In the 1M ( which does not cone with DCT) this dry sump setup was utilized to simply keep the six speed cool. One of the issues with tracking a 135/335 has been high temps. This is another item to make sure the car is track worthy. Owners of c6 vettes for example, have found that adding trans coolers and oil coolers to that car are a "neccessory" for track usage.

the first sentence doesn't sound logical. The transmission is a 6speed manual, and you are referring it comes from a M3 DCT. DCT what I know doesn't have dry sump...

The rest I agree to. I think this is a way to put less stress on the existing cooling system.