vrus

Just wanted to post an update on this situation...

I had an opportunity to drain out the Evans Race coolant (FINALLY!) that I filled the intercooler circuit with and replace it with plain water.

It is a scorching hot day in Toronto today.. It read 39.5C on my car's outside temp display. I did 5 (COUNT EM 5) consecutive 60 - 140km/h blasts and the SC never disengaged. My Evosport cooling system upgrade is once again doing its job!

I dont know if the Evans coolant was to blame or if there was indeed air trapped in there, but, the problem seems to be cured. AMEN!!!

I know that Evans recommends a special flush be done when going from their coolant to water or water/antifreeze because the Evans coolant doesnt mix well with water.. It causes pockets to be made and supposedly traps heat. Even though this is the case, it is still performing very well right now. It should be a little better once I perform the flush & refill..

So far the power I made on the dyno was with this quazi-working intercooler circuit. It will be interesting to see what the dyno shows next time I do a pull... Only problem is now the temps in Toronto are so high that it will be hard to compare against my cooler day pulls I did previously.

Will do some datalogging soon and check my IATs again to see what level they are at now.. Will post another update as soon as that is done.

jparch

Jsut got mine back from the dealer because the s/c was cutting out; I was convinced it must be the intercooler pump. Turned out to be a bad relay that was responsible along with somehting to do with the air pump recall. Everything seems ok now, have pushed it fairly hard the last couple of days ( under high heat and humidity conditions)........

vrus

John,

I rigged my pump to run all the time with the ignition so if I dont hear it running I know something is wrong right away.

They did the air pump recall on mine also but I have no idea what that entailed. I told them not to reprogram my ECU so they must have just replaced the relay.

irishspeed

HELP ME!!! I am consistently losing to Cobras due to this!! Once I hit 115 MPH it is Hello CDI Time!!! I am promptly going to auction this car off if the dealer bull****s me. Time for an S600 T/T....

Finny

Yeah, this is how you fix the problem...

Disconnect the charge air cooling plumbing from the engine cooling system. (see photo)

Connect another Bosch pump in series with the old one to increase pressure. Piggy back and relay the power off the stock one (see photo)

Add a full length alloy radiator and place it up front for priority cooling. Plumb this into the stock one, like the 220 setup a loop. This is very similar to but not exactly the same as the S55 setup (See attached MB image and 55 dimensions image).

I've been running this setup for the last year or so. The current commercially available solutions are hopeless compared to this simple set up. Run after run after run with no heat soak at all.

Someone should make this a kit... hint hint...

Finny

Last photo...

Mad TKD

so finny what is that radiator? and are you running 2 pumps? Did you remove the stock E55 IC and replace with it. I really can tell from those photos.

But your right this should be made a kit.

Finny

20mm thick standard Alloy (L - down - R Flow direction)

Yes.

No... linked it into the loop.

stevebez

See the picture I added in this thread of an intergrated pump would be neat ... also solves mounting issues - but need to find the space - might be enuf between rad and front of engine area.

https://mbworld.org/forums/showthrea...hlight=meziere

Kit please!!!!!! Kit please!!!!!!!

Vadim @ FD

http://evosport.com/product/proddeta...ER.M5K.PPC.219

stevebez

Yeah thanks Vadim - but its not the same !!!!

I like the way Finny has done it - got massive frontal area ... no chance of anything get much above ambient on that setup.... even with ALLOT of boost.

SS3E55

Agree with SteveBez - prefer the larger unit to the "upgrade" that looks almost stock in size. (might be just a visual thing too)...

Steve you're crying out for a Kit but really this doesn't seem too involved and Finny has lead the way...perhaps with a little hint or two on the model numbers and sources for the radiator you'd be there - no?

So Finny can you tell us where did the rad come from ??


regards
Phil

Skeeter

FWIW, as soon as my K1 '05 E55 developed this problem, the dealer fixed everything. If your SC quits after a half-dozen sprints on the freeway, you need to get it taken care of! I'd have raised all kinds of hell if they hadn't fixed it...

My experience was A+. They replaced the pump AND put in a new supercharger (I think to eliminate the 'chirp'). All solved now, she runs better than new. I'm sure I'm loosing some power after repeated runs, but nothing I can detect by the seat of the pants meter... I can romp on it all day and still get that crazy torque at any speed.

Just my two cents,

Skeeter

Finny

Local radiator bloke... Around $300 to my specifications.

See dimensions above.

Cheers

MBH

My car is a bone stock 2005 except the audio/video system, and I have never had any kind of supercharger problems. Sorry to hear about your troubles.

sgtstanko

I contacted two local dealers and there is in fact a "service bulletin" to repair this complaint. They are becoming quite aware of it........info for what its worth.

Jrocket

Its the IC pump that will give you problems,not the SC directly.And its not if but when will it go out,and it will.The pump could be weak and your car will still run good,but not at its best.You'll never know because in everday driving you get used to it,but when it does go out and the intake temps peak,you'll know then for sure.Cause the SC will shut down after a few good runs.

So be prepared to explain to your SA the symptoms.

stevebez

Thing is even if the S/C does not shut down with the bigger rad you will have lower IAT's meaning more power and more consistently ... If you have pulley+ mods I think this is essential....

blkamgsl55

I read about all these problems with the E55's. Do the SL55's have the same problems to the same degree, lesser, or not at all?

Jrocket

Not sure but I would assume if they have the same cooling design(pump) then they would.

Vadim @ FD

Of course it is!!!

Finny used a W220 cooler. It requries alterations to radiator support to install and is hardly reverseable when car goes back on a lease.

In US, 85% of E55s are leased. This is why evosport cooling upgrade is designed to be 100% reverseable. It also applies when you want to sell your car and return it to stock.

Finny

Not true. The cooler was custom made and clips onto the existing radiator with no hacking necessary.

Very simple to reverse the process without any evidence.

The only noticeable mod is the power steering coolers, but you can always install the original ones back.

Finny

+1

Finny

A few more shots...

vrus

Finny did an awesome job on his setup and he fab'd everything up himself...

I've been working on this project for a while and have gone through alot of different combinations.. I have settled on what I think will be the final "kit"... I am confident this combination will support very high horsepower (700+hp)...

I wanted to try something that first allowed me to maintain a stock appearing engine bay not requiring me to put the top mount SLR style intercoolers on.. Once this kit is tested in the heat of summer, if it doesnt pass the mustard, I will switch to SLR setup.

Here is where I am at so far...

1) large front-mounted intercooler.

2) upgraded pump

3) Patented heat dispersement coating from European aerospace company.. Improves heat dissipation by 20%.. It's a copper based coating which applies and dries in a matte black finish. I am going to coat the car's radiator and front mounted heat-exchanger with it.

4) Revised S/C intercooler: Larger, more efficient core, enlarged inlet on intercooler, port matched enlarged outlet on S/C.

5) On my car the water/meth injection will be plumbed into the lower S/C intercooler just aft of the core and pre-IAT sensor. The heat absorption properties of the water spray should help correct any heat that cannot be extracted by the core itself.

My goal is obviously to attain ambient or better IAT and I am waiting for 35C weather to prove it.

Here are a couple of quick pics to show the size & location of front-mount.. S/C intercooler pics to follow...