Exotic-metal55

I posted last year about using the new Garrett Cobra H/E. Did not have pics at the time but did a re/re and took some.

You can find them on Ebay ,100 buck range. They are about 30 ounces and work very well as an Auxillary h/E. These are not large enough to work as a replacement h/E but work fantastic in series. The end tanks are pretty nice size and the unit is thin enough to let nice air flow to your radiator or stock h/E..

This install is on a CL, that lacks the width in the front for the aftermarket E class H/E`s . I think the SL also has less room and oil cooler in front. Either way, It should be able to be adapted to all the S/C cars. Some people are adding H/E `s to the rear bumper area, so here is another low cost option.

I just bought a couple of aluminum strips from builders store and made simple brackets to fit unit in place. I have run this unit for a year now and Data log info is great for me. Average 17-20 over ambient in 95-100 heat and 4-6 second recovery VERSES 36 to 40 over amient and 30-60 second recovery stock.

Ali_E55

very nice

so we can add it infront of the OEM ?

shardul

iTrader: (1)

can you post some measurement of the unit
thank you

benz_addict

That's really impressive, how exactly did you install the lines that over the stock unit?

skratch77

Wont that block the air from hitting the bigger H/E? I would just run a bigger H/E for better air flow.

Exotic-metal55

Every model car has a few differences , so you have to check on your model.. I did not have to remove the bumper to install this H/E on my car. It is a very easy install.

26.5 wide X 2" thick (at tanks) and 6" tall..

The fins are very open on this unit and omly about 1.25" wide. They flow air through well. I checked my stock system the day before I put this unit back on with my data logger.. The Auxillary unti makes a huge difference.

Stock, I see 34 to 41 deg. over ambient in 97 deg heat. Recovery was in the 30-50 second range..


With auxillary unit ,,I saw 16 to 21 deg over ambient in 98 deg heat and only a 7 -12 second recovery.. That is a 3-5 time quicker recover rate and 50% reduction in ambient air temp in egg cooking heat!


How I ran my lines? As you can see, this is a crossover h/e design. I ran a stainless covered hose from the drivers side Aux. outlet, across to the passenger side stock H/E inlet (bottom inlet line). I then ran a 90 Deg pre formed rubber hose from the aux. h/e passenger side inlet to bosch pump inlet.. All I did was connect the aux. H/e in series with the stock H/E..

What you see in the far right picture, is an oil cooler, not the stock H/E. My stock H/e is behind the radiator. The E class H/E is located in the same place as the CL and SL oil coolers. S class cars and the 65`s have TWO H/E`s OEM. One in lower valance and the other behind the radiator.


Here is the info I posted last November with more detailed test info. The unit was more effective in the colder air, as expected. It was 40 ounces total, not 30 ounces as posted above.

2003 S600

ah no, we have the oil cooler as you do ad we have 1 he half as tall as ac condenser between ac condeser and bumper, thats it. I kow b/c i had everything replaced from oil cooler to engine fan. I tried to fit a garret where you did but the outputs come out the face and no room to connect hoses. would have to relocate barbs to sides.

hooleyboy

Yes. sure 2 is better than 1. However if the HE are stacked on top of each other it will in most cases reduce the efficacy of the HE that is now sitting behind the new one.

I run a 2 HE setup. and I had the option to run a cobra HE as well. I opted for a smaller HE to sit above the standard placement HE. Its all about surface area that has direct contact with the air.

Once the air hits that first HE and starts cooling the water, the air that passed the first HE will in turn heat up. Only to hit the second HE at a higher temp. Thus reducing the cooling on the second HE.

IMO taller is better than thickness. If this HE setup (based on over all volume) was taller and still flowed the same volume, that would be the best way to go.

jikjak

looking good!