demetaktak

hey all.

i have come across a cooling problem for some time now and finally decided that to be my next mod. living outside US, aftermarket HE cost good money for me to ship, leave alone the price and all.

i got the idea to get second hand stock 55K HE for cheap down here, and install it on top or bellow the other. given that i can fit it well enough, could i do it?
has it been done before?
will i mess something up with the circulation of liquid?

thanks.

Sir-Boost-a-Lot

iTrader: (1)

Combine it with split cooling and a big trunk mounted intercooler reservoir(or engine bay mounted) and now you're talking.

demetaktak

i already have a split cooling system in the engine bay. its a small HA reservoir. will the bosch 010 pump do it or will i have to switch the pump?

uraberg

Aren't you running a fixed supercharger pulley? This will definitely add a lot of heat. I think adding more surface to the heat exchanger is more important than increasing flow. You might as well hook up as many heat exchangers as you can, as long as they get decent air flow.

demetaktak

no , not fixed. its custom made 78mm on stock clutch. the second HE will add the surface...

uraberg

Whomever made that pulley for you, tell them that there is a market for it, at least as far as I'm concerned!

Heck, I have a little lathe. I wonder if there is enough meat on the stock pulley to just turn it down to around that size.

Exotic-metal55

Not much room for a second E55 h/e but you may be able to measure your space and find a H/E online to fit.

demetaktak

uraberg, this is georgia my friend...average salary here is a couple of hundred bucks, so people have adapted to "the next best thing".
mine was made a copy of the eurocharged pulley.

other than space, do i have any more constraint? will i mess up the system in any way with the additional HE...

James M

Yes it can be done and I have seen it done with my own eyes. My tuners new business partner is running a 170mm crank pulley with an 84mm S/C pulley, 82mm T/B, longtube headers, 550cc injectors, split cooling and double stacked stock H/E coolers. He runs one cooler above the other in front of the main radiator and simply loops one into the other with 16mm hose. I think he only uses one Johnson CM30 pump, but it works well. I am also looking at this innovative mod because we also have the same problem here with custom or imported parts costing outrageous prices. Just weld on 2 mounting brackets in front of the main radiator and away you go. Hope it works out for you.

viper04

Nice! can you post any pictures of it? Mercedes already use this system on the S55 they call it a "Auxiliary low temperature cooler" I can tell you from my own experience that it works and works well. I never knew what a supercharger shut off was until I read it in the E55 section. I was running a 190 pulley and IAT were always 5 to 12 above ambit temperature when cruising, and recover was really within seconds. I have always wonder why they never ran one on the E55. Maybe due to not having enough room or the weight of the S55 in comparison to the E55. Here is a picture of what I'm talking about. Post #19.

https://mbworld.org/forums/sl55-amg-...r-package.html

JoeNobody

The Renntech intercoolers package for E55 is identical to that. It adds a second heat exchanger in front of the existing.

demetaktak

james M. thanks for the hopes i searched everywhere and didnt find anything like that but now you saying that it has been done and that it works fine gives me room to improve. any chance you can post a couple of pics how it was fitted. i am planning on doing that this weekend if i get my hands on the used HE. by a quick look, there is not much room for the extra HE, i ll have to improvise

James M

I won't be able to get you pics anytime soon as my tuner is far away, but from what I remember the second H/E is positioned directly above the factory one, taking up the remaining space in front of the main radiator. There might be a bit of cutting involved around the bonnet latch and instead of welding tabs onto the framework you can simply drill and bolt new tabs on. The piping looks weird as the inlet and outlets on the 2 x H/E's won't allow for a natural loop, one into the other, but who cares - as long as it works. Now you have got me going and I am sniffing around for a used H/E too! I was only going to do this mod once I went over a 180mm C/P, but it looks like a nice December holiday project.

demetaktak

thanks dude.i ll have the front bumper removed tomorrow and see what we can do. if not the 55 intercooler, i can always go for the 32k cooler. its not that much smaller. and will be an addition.

uraberg

Please take lots of pics. I'll be doing this myself at some point.

demetaktak

unfortunately, my project was postponed from last weekend but i have come to realize the split cooling, in my case with stock intercooler really does not help one bit. the temp on WOT were through the roof yesterday peaking at 86 celcius in 3rd gear.
i believe the stock intercooler is just not enough to handle the split cooling and it needs the help of the radiator... with stock cooling i peaked at 67 celcius. sure, it was 3-4 degrees colder that day, ambient temp, but it makes a hell of difference. i feel the car pulling timing on me when it gets hot. it just wont go as well.

so the conclusion i have come to is that split cooling does not work with stock intercooler... please chime in anyone has similar experence.
today i ll be returning to stock set up and taking new logs... and racing 477whp e60 m5.

James M

I have had similiar results. I split my cooling less than a month ago exactly as per the split cooling DIY, using a BMW reservoir and I can say that my temps came down maybe one or two degrees Celsius. I am not running serious mods so I expected the temperature drop to be greater than stock. My AIT's sit at 37-38 degrees Celsius with normal driving and hit 44-45 on WOT.

S70T5

https://mbworld.org/forums/w211-amg/...ml#post1990994

demetaktak

james, you dont have similar results, after splitting my iat at wot went from 67 to 86 C...

uraberg

This rise in temperatures cannot be explained by just splitting the cooling. Are you sure the difference between these two temps is just the split? Could it be that the 67C number is from before the SC pulley change? (the size pulley you have is adding a lot of heat).

If that is the case, then you need to look for a broken pump, or a kinked hose.

Sir-Boost-a-Lot

iTrader: (1)

It's probably because you used a reservoir with such tiny capacity.

In addition, as stated above, if you're comparing your IAT cooling before and after the split cooling as well as after the pulley change, that is normal. The supercharger is spinning faster so it will make much more heat. Add a larger reservoir for the intercooler system, and a methanol injection kit and you will be in love with the results my friend.

demetaktak

both iat test were done after the pulley change. i will try now installing a second intercooler, that alone should increase the capacity by 2l and maybe larger reservoir.
meth kit is probably my next mod...
i m sure i ll love the result, i am taking on 600 hp m5s with 9.8 AFR and 86c temps. i can only imagine what under 60c and 12 afr will be like...

demetaktak

finally got around installing the second intercooler, and before i could test it i had a damn accident. as i was cruising towards freeway the x5 in front of me just stopped out of the blue. i barely had any time to react. the ABS hit once and then bam...at least my car was insured, it wasnt much of a damage. well the radiators and coolers are gone, the engine and the charger look intact, but the gear box got stuck in D, the lever moves and on the dash it shows p,r, n, but it wont D and while in P it rolled downhill. pretty sure something broke of and its stuck in first gear.
sorry. had to share my frastruation......
on he bright side, the front end will be like new and i ll make some mods during rebuild :0