Code 3 Performance Heat Exchanger Installed...
MBWorld Fanatic!
Joined: Jul 2005
Posts: 3,174
Likes: 19
From: London, UK
No longer stock '06 E55, A3 3.2 Quattro, GLE 400d, R107 280SL, Golf Polo
CM90 version arrived!
Code3 H/E to match my CM90 pump arrived.
Very nicely packed and really looks the part and welds are superb. The end tank had to be modified to allow for the larger opening for the CM90. I forgot how big this pump is!
Also got 4 bolts on underside to take the oil cooler for the '06...
Taken some pics of the unit and will post as soon as I can get them off my camera.
Hopefully it bolts right in.
Thanks Brandon.
Very nicely packed and really looks the part and welds are superb. The end tank had to be modified to allow for the larger opening for the CM90. I forgot how big this pump is!
Also got 4 bolts on underside to take the oil cooler for the '06...
Taken some pics of the unit and will post as soon as I can get them off my camera.
Hopefully it bolts right in.
Thanks Brandon.
Senior Member
Joined: Dec 2002
Posts: 427
Likes: 29
From: BH, MI
C63S past: E90 M3 6M, w211 E55
it may not be best if the water fluid slows down too much, since heat transfer is a function of both temperature and flowrate.
since there are two heat exchangers involved in this loop, the only real way to make this judgement call is by looking at the efficiency of both the intercooler and the front mounted HE for both airflow and waterflow. a reduction in waterflow in the front mounted HE may not impact total heat rejection much, but it could in the intercooler.
overall, you get better heat rejection running higher flowrates. all HE's have a plateau that is based off heat exchanger performance, and the initial temperature difference. droppnig flow only makes sense if you're running in this operating range, which most likely we aren't.
used to work for Behr
Senior Member
Joined: Dec 2002
Posts: 427
Likes: 29
From: BH, MI
C63S past: E90 M3 6M, w211 E55
btw, i know everybody complains about the mediocre front charge cooler, but please note that it's the OEM's (and overall industry's) priority to have better A/C performance, and any larger/thicker heat exchanger in front of the condenser would have made a negative impact on this system.
Given that 1 deg C different in panel out AC temps means the difference between pass and fail, while I'm sure the OEM would rather have consistent A/C performance with reduced repeatability in WOT, then a lower overall A/C performance with better flogging capabilities, but there are many on this forum that would rather have it the other way around
to have both A/C and CAC performance, you would either need to open the front end, increase fan power, or both, which would increase drag and reduce fuel efficiency.
there's always tradeoffs. even if I don't agree on which component should take priority, there are more systems than just the supercharger unit that need to hit targets. What about a larger condenser for the E55? The fact that the lower E variants use the same condenser and rest of the underhood spacing, you really are limited without a negative impact on something.
Given that 1 deg C different in panel out AC temps means the difference between pass and fail, while I'm sure the OEM would rather have consistent A/C performance with reduced repeatability in WOT, then a lower overall A/C performance with better flogging capabilities, but there are many on this forum that would rather have it the other way around
to have both A/C and CAC performance, you would either need to open the front end, increase fan power, or both, which would increase drag and reduce fuel efficiency.
there's always tradeoffs. even if I don't agree on which component should take priority, there are more systems than just the supercharger unit that need to hit targets. What about a larger condenser for the E55? The fact that the lower E variants use the same condenser and rest of the underhood spacing, you really are limited without a negative impact on something.
Last edited by anerbe; May 14, 2008 at 05:08 PM.
MBWorld Fanatic!
Joined: Aug 2005
Posts: 3,466
Likes: 10
From: Southern Cali (Ontario)
Code3 H/E to match my CM90 pump arrived.
Very nicely packed and really looks the part and welds are superb. The end tank had to be modified to allow for the larger opening for the CM90. I forgot how big this pump is!
Also got 4 bolts on underside to take the oil cooler for the '06...
Taken some pics of the unit and will post as soon as I can get them off my camera.
Hopefully it bolts right in.
Thanks Brandon.
Very nicely packed and really looks the part and welds are superb. The end tank had to be modified to allow for the larger opening for the CM90. I forgot how big this pump is!
Also got 4 bolts on underside to take the oil cooler for the '06...
Taken some pics of the unit and will post as soon as I can get them off my camera.
Hopefully it bolts right in.
Thanks Brandon.
The unit will bolt right in. I have an older version which the end tanks were thiner.
HE has been the only mod I have never doubted.
ASP pulley.. its a love and hate
MBWorld Fanatic!
Joined: Jul 2005
Posts: 3,174
Likes: 19
From: London, UK
No longer stock '06 E55, A3 3.2 Quattro, GLE 400d, R107 280SL, Golf Polo
Yep when I put the H/E in I'll rust treat the pully as its looking a bit shabby!!!
Next w/e it will go in this weekend I'm racing here again...
http://www.palmersport.co.uk/
Next w/e it will go in this weekend I'm racing here again...
http://www.palmersport.co.uk/
MBWorld Fanatic!
Joined: Jan 2007
Posts: 2,597
Likes: 19
From: Kuwait
CLS55 2006, CLS 63S 2015
Yep when I put the H/E in I'll rust treat the pully as its looking a bit shabby!!!
Next w/e it will go in this weekend I'm racing here again...
http://www.palmersport.co.uk/
Next w/e it will go in this weekend I'm racing here again...
http://www.palmersport.co.uk/
MBWorld Fanatic!
Joined: Jan 2007
Posts: 3,342
Likes: 11
From: PA
S600, GL450, GLC 43
Yep when I put the H/E in I'll rust treat the pully as its looking a bit shabby!!!
Next w/e it will go in this weekend I'm racing here again...
http://www.palmersport.co.uk/
Next w/e it will go in this weekend I'm racing here again...
http://www.palmersport.co.uk/
The different track setups makes me what to get on the flying bus alone. Please, please, post some picks of that amazing circuit my friend!
See yeah
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Thread Starter
MBWorld Fanatic!
Joined: Feb 2007
Posts: 1,010
Likes: 0
From: Phoenix by way of Texas
2003 E55 AMG
Couldn't help myself finding my old thread on the heat exchanger I got after it was pointed out what the old prices were! I paid $700 and then more for install and look at where the pricing is now! Goodness, this is why I try not to take a walk down memory lane! LOL!
