1M Cooling/Heat Soak

MDORPHN · 12-29-2010, 09:43 AM

Cooling issues are paramount for those of us who plan to track the 1M.

Based on currently available information, it seems that most of the reported improvements are related to the much larger air intakes (and ducting) in the front end.

However, we don't yet know what hardware changes may have been made.

Specifically, I'm hoping we soon find out whether the FMIC and oil cooler are the same as the 135. I'm hoping, of course, that they're larger. An improved FMIC won't directly address cooling, but would help ward off heat soak.

Based on BMW's description, I'm expecting that the engine cooling system is identical to that on the 135 optioned with the "power performance" package (auxilliary radiator and improved fan).

Are there other cooling-related details that will be critical?

rca06Mcoupe · 12-29-2010, 11:00 AM

I haven't raced my M cars and won't be racing the 1M but I'm really surprised BMW didn't anticipate these kinds of questions and have a press release & video prepared by the M division before they officially unveiled the car in mid December.

I do expect these details before or at the Detroit show.

At this point I really don't care about whether it is the same basic engine or HP. I want to know more about how they "married" the chassis to the engine (term used in old M Division video), which would include details about the rigorous M division testing we all assume was completed before the M sign off, and the thinking behind the decision making. Those details were revealed by BMW when the E46 was released at the Geneva show.

BTW I did see an old British video review on the Z4335is, summer 2009. In that video the reviewer said the Z4335is engine will be going into the forthcoming 1M.

nordique14 · 12-29-2010, 11:49 AM

I suspect other than ducting, the 1M cooling will be the same as the Z435is/335is/PPK. That is a good thing. I have the BMW PPK on my 135i. I spent a day at Laguna Seca (25min sessions every 2 hours) in mid-70s weather and never entered limp mode. In 2011 I will do some full weekends in warmer weather and report back.

Jeff_DML · 12-29-2010, 12:05 PM

I was at Buttonwillow in the A group and there was a kid running a 335 that I assumed was modified. Temps where 90 to 100s, he made it through the first day without limp mode and hit it on the second day. Hopefully the 1M will be a improvement on that.

12-29-2010, 09:43 AM	#1
MDORPHN Colonel 292 Rep 2,898 Posts Drives: AW 1M Join Date: Oct 2010 Location: Wash, DC iTrader: (0)	1M Cooling/Heat Soak Cooling issues are paramount for those of us who plan to track the 1M. Based on currently available information, it seems that most of the reported improvements are related to the much larger air intakes (and ducting) in the front end. However, we don't yet know what hardware changes may have been made. Specifically, I'm hoping we soon find out whether the FMIC and oil cooler are the same as the 135. I'm hoping, of course, that they're larger. An improved FMIC won't directly address cooling, but would help ward off heat soak. Based on BMW's description, I'm expecting that the engine cooling system is identical to that on the 135 optioned with the "power performance" package (auxilliary radiator and improved fan). Are there other cooling-related details that will be critical? Last edited by MDORPHN; 12-29-2010 at 09:51 AM..
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12-29-2010, 11:00 AM	#2
rca06Mcoupe Private 3 Rep 67 Posts Drives: 2006 M Coupe Imola/Imola Join Date: Jan 2007 Location: Boston (area) iTrader: (0)	I haven't raced my M cars and won't be racing the 1M but I'm really surprised BMW didn't anticipate these kinds of questions and have a press release & video prepared by the M division before they officially unveiled the car in mid December. I do expect these details before or at the Detroit show. At this point I really don't care about whether it is the same basic engine or HP. I want to know more about how they "married" the chassis to the engine (term used in old M Division video), which would include details about the rigorous M division testing we all assume was completed before the M sign off, and the thinking behind the decision making. Those details were revealed by BMW when the E46 was released at the Geneva show. BTW I did see an old British video review on the Z4335is, summer 2009. In that video the reviewer said the Z4335is engine will be going into the forthcoming 1M.
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12-29-2010, 11:49 AM	#3
nordique14 Major 53 Rep 1,477 Posts Drives: SGM 135i 'vert Join Date: Feb 2008 Location: Sharks Territory iTrader: (5)	I suspect other than ducting, the 1M cooling will be the same as the Z435is/335is/PPK. That is a good thing. I have the BMW PPK on my 135i. I spent a day at Laguna Seca (25min sessions every 2 hours) in mid-70s weather and never entered limp mode. In 2011 I will do some full weekends in warmer weather and report back.
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12-29-2010, 12:05 PM	#4
Jeff_DML Lieutenant 24 Rep 472 Posts Drives: 01 996TT Join Date: Jul 2006 Location: San Diego iTrader: (0)	I was at Buttonwillow in the A group and there was a kid running a 335 that I assumed was modified. Temps where 90 to 100s, he made it through the first day without limp mode and hit it on the second day. Hopefully the 1M will be a improvement on that.
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