So my tech did a "new" dual HE CLS55 build... come on in please
Thread Starter
Senior Member
Joined: Jun 2006
Posts: 352
Likes: 0
From: Bulgaria
CLS55 AMG
So my tech did a "new" dual HE CLS55 build... come on in please
Heya guys, long time no see. Since I got some spare cash recently, I had a
nice shop back home manufacture me an 85mm supercharged pulley. I
went with something that far exceeds any of the pulleys offered on the
market (trust me ive suffered enough)
While waiting for the pulley we discussed with my tech a way to cool down
my car effectively (we race up to 200mph in my country
). As I had
already purchased an aftermarket HE we thought of using both this and my
old one. I gave my tech all the threads here, and he finally told me he had
build an easier and cheaper setup than anything hed seen on here!
So I've got some data logs and a nice little vid for you guys. If you think he
has actually achieved something good, then ill get him to detail all the pics
and the build process so I can share it for other fellow members to see.
If not, then well ill demand my cash back
Im attaching a data log done in 40F weather just now with one
passenger in the car and 2/3rds tank of 100octane fuel.
Data log is for a run from 20mph to 195mph
Mods:
85mm Supercharger Pulley (own make)
Belt Wrap Kit
Eurocharged TCU
Aggressive 100ron Jerry tune
No secondary cats
Ported headers (otherwise stock)
Ported supercharger air intakes (or something like that)
Dual HEs.... one OEM, one Eurocharged
3rd Gen Bosch IC pump
Im also attaching a vid of my car doing a smaller run with just me filming.
Any input would be appreciated, as there are far more knowledgeable tuners here than me (first project
)
nice shop back home manufacture me an 85mm supercharged pulley. I
went with something that far exceeds any of the pulleys offered on the
market (trust me ive suffered enough)
While waiting for the pulley we discussed with my tech a way to cool down
my car effectively (we race up to 200mph in my country
). As I had already purchased an aftermarket HE we thought of using both this and my
old one. I gave my tech all the threads here, and he finally told me he had
build an easier and cheaper setup than anything hed seen on here!
So I've got some data logs and a nice little vid for you guys. If you think he
has actually achieved something good, then ill get him to detail all the pics
and the build process so I can share it for other fellow members to see.
If not, then well ill demand my cash back
Im attaching a data log done in 40F weather just now with one
passenger in the car and 2/3rds tank of 100octane fuel.
Data log is for a run from 20mph to 195mph
Mods:
85mm Supercharger Pulley (own make)
Belt Wrap Kit
Eurocharged TCU
Aggressive 100ron Jerry tune
No secondary cats
Ported headers (otherwise stock)
Ported supercharger air intakes (or something like that)
Dual HEs.... one OEM, one Eurocharged
3rd Gen Bosch IC pump
Im also attaching a vid of my car doing a smaller run with just me filming.
Any input would be appreciated, as there are far more knowledgeable tuners here than me (first project
)
Last edited by 0700700; Nov 5, 2014 at 08:32 PM.
Super Member
Joined: Apr 2009
Posts: 852
Likes: 4
From: DE
2005 E55
I dunno, I'm new around here, but I don't see any benefits of your two heat exchanger system on your IAT's versus a person with a tank and one HE. How / where are the heat exchangers mounted? Are they in succession with one pump running the coolant through them both?
MBWorld Fanatic!
Joined: Jun 2009
Posts: 4,429
Likes: 61
From: Cypress, TX
'06 E55, '15 Jeep SRT8, '94 Mustang GT
Trending Topics
Super Member
Joined: Jan 2007
Posts: 979
Likes: 38
From: South Africa
2018 E63s AMG (Current) 2011 CL63 AMG (Sold) 2005 CLS55 AMG (Sold) 2004 C32 AMG (Sold)
Air intake temp still going up to 66'c so a lot of timing still being pulled.. Check for a data log of someone with just a "regular" HE upgrade setup and see what temps they getting.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Thread Starter
Senior Member
Joined: Jun 2006
Posts: 352
Likes: 0
From: Bulgaria
CLS55 AMG
Im using some sticky 295s which were properly warmed up prior to my testing
The two HEs are mounted on top of one another, for which we had to re-wire some of the lines for the hydraulic system. They are in succession and one pump is pumping through both. We are discussing using two pumps in a push pull configuration
Im attaching an old data-log of a long pull in 4th gear form about 50-170mph using just the Eurocharged HE and same mods. For a much shorter run the AITs shot to a significantly less friendly temperature. This is why I thought I had made significant progress on the car 
The vid is also with the old setup, and I think it was significantly slower in the topend
So what you guys think, is it performing well enough for the limited mods I have, or are temps still an issue?
The vid is also with the old setup, and I think it was significantly slower in the topendSo what you guys think, is it performing well enough for the limited mods I have, or are temps still an issue?
Last edited by 0700700; Nov 6, 2014 at 06:31 AM.
Senior Member
Joined: Aug 2014
Posts: 380
Likes: 1
2006 E55 AMG
Is it you lifting at around 25 seconds in, or is the car actually slightly closing the throttle?
Did you log speed? (if you can log time vs speed, then you have a pretty easy way of comparing runs.) I guess you can convert from rpm and gear.
Senior Member
Joined: Aug 2014
Posts: 380
Likes: 1
2006 E55 AMG
More heatexchanger is always good. You can always (and probably should) combine this with a split off extra tank.
BTW, I suspect having the heatexchangers in parallel should give you best cooling, and I don't think a second pump will do much.
BTW, I suspect having the heatexchangers in parallel should give you best cooling, and I don't think a second pump will do much.
MBWorld Fanatic!
Joined: Jul 2010
Posts: 4,921
Likes: 9
From: Streets of SoFlo
you to Hate
I had an EC front HE w/ Meziere pump, a Cobra HE under my trunk, a 3.5 gal trunk tank with Rule2000 pump AND 1.5 gal water/meth tank in the trunk w/ dual nozzles
Thread Starter
Senior Member
Joined: Jun 2006
Posts: 352
Likes: 0
From: Bulgaria
CLS55 AMG
Timing seems to stay pretty steady?
Is it you lifting at around 25 seconds in, or is the car actually slightly closing the throttle?
Did you log speed? (if you can log time vs speed, then you have a pretty easy way of comparing runs.) I guess you can convert from rpm and gear.
Is it you lifting at around 25 seconds in, or is the car actually slightly closing the throttle?
Did you log speed? (if you can log time vs speed, then you have a pretty easy way of comparing runs.) I guess you can convert from rpm and gear.
Ditto! This weekend we're taking the car apart to clean up the install and I will personally take some nice piccies
MBWorld Fanatic!
Joined: Dec 2011
Posts: 1,226
Likes: 24
Mercedes
Second pump would help, especially if you already have it.
Running the exchangers in parallel would give the highest flow, although more coolant will flow through whichever exchanger has the least resistance, so effectively you may end up with only slightly better than one exchanger. Because of that, I think running them in series would be better (Renntech additional exchanger does it that way).
Running the exchangers in parallel would give the highest flow, although more coolant will flow through whichever exchanger has the least resistance, so effectively you may end up with only slightly better than one exchanger. Because of that, I think running them in series would be better (Renntech additional exchanger does it that way).
Thread Starter
Senior Member
Joined: Jun 2006
Posts: 352
Likes: 0
From: Bulgaria
CLS55 AMG
Second pump would help, especially if you already have it.
Running the exchangers in parallel would give the highest flow, although more coolant will flow through whichever exchanger has the least resistance, so effectively you may end up with only slightly better than one exchanger. Because of that, I think running them in series would be better (Renntech additional exchanger does it that way).
Running the exchangers in parallel would give the highest flow, although more coolant will flow through whichever exchanger has the least resistance, so effectively you may end up with only slightly better than one exchanger. Because of that, I think running them in series would be better (Renntech additional exchanger does it that way).
Senior Member
Joined: Oct 2006
Posts: 469
Likes: 2
Second pump would help, especially if you already have it.
Running the exchangers in parallel would give the highest flow, although more coolant will flow through whichever exchanger has the least resistance, so effectively you may end up with only slightly better than one exchanger. Because of that, I think running them in series would be better (Renntech additional exchanger does it that way).
Running the exchangers in parallel would give the highest flow, although more coolant will flow through whichever exchanger has the least resistance, so effectively you may end up with only slightly better than one exchanger. Because of that, I think running them in series would be better (Renntech additional exchanger does it that way).
MBWorld Fanatic!
Joined: Oct 2012
Posts: 1,203
Likes: 2
From: L.I. NY
2011 CTSV auto, 06 E55 white pano, 87 Grand national, 63 split window
MBWorld Fanatic!
Joined: Dec 2011
Posts: 1,226
Likes: 24
Mercedes
Thanks for posting but I have never seen the Renntech additional heat exchanger before(interesting). If you have a pic can you post it. Mercedes also runs this set-up with the S55. From my personal experience was a great set-up. Never had a cooling issue, always wonder why it was never used on the E55? May no room for it?
can see it here https://mbworld.org/forums/w211-amg/...installed.html
MBWorld Fanatic!
Joined: Dec 2011
Posts: 1,226
Likes: 24
Mercedes
Reason why my tech doesn't want to use two pumps is because they have a slightly different flow rate. CM30 has a around 30cfm from what I remember and the stock third gen Bosch (i.e. OEM) pump has around 33. I sometimes think whether I really got a grasp of the difference between parallel setups and series, but once I get the car up on jacks ill take some pics for further comments!
https://mbworld.org/forums/m275-v12-...ml#post5836390
But with that said, running both pumps in series would still be better than a single pump. The difference in flow rates between the pumps won't matter, since neither pump will produce the full rated flow.
