• The Forums are now open to new registrations, adverts are also being de-tuned.

E55K Split cooling system tank by PCS

BlackC55

Authorised Forum Sponsor
SUPPORTER
Joined
Feb 8, 2007
Messages
20,782
Location
Portsmouth, Hampshire.
Car
E55K SL500 E250X2 Smart44 Brabus Track car E450Cabriolet X350 Pick up
We have been working on a new split cooling system for E55's. It uses an under bonnet tank in place of the dust filter.
One of our customers and members on here lent me his beloved E55 so we could develop the system. A massive thanks to Tony (Ginger55K) for the car and patience!
The car in question is a almost totally stock car apart from the RENNTech lowering module. To compliment the split system we also fitted the Eurocharged charge cooler and Johnson CM30 pump.

We have successfully fitted two boot mounted tanks before to members of MBClubs cars. RickyS and Savmans E55K's. Fitting the boot (trunk) tank is a very long winded process. Savmans one took two and a half days to complete. Running the large pipes under the car is a pain due to lack of space. With the trunk tank a secondary Johnson pump is used too, increasing the costs and time taken to wire it in. Our tank takes just 5 hours including fitting the Eurocharged cooler and Johnson pump. The trunk takes are easily £2,000 plus the Eurocharged cooler and Johnson pump for another £800ish. The trunk tank is quite intrusive on the car due to loosing boot space and your spare wheel.

The split system is very worthwhile to reduce intake temps and to cut recovery time after a wide open throttle run. Ginger55K has started a thread on how it has all developed. This includes data logging at every stage.
The main advantage of this system is that it keeps the intake temps at a very safe level and allows repeated WOT runs due to the very fast recovery time of the intake temperature.

The PCS tank is a very simple set up indeed. The tank is situated under the bonnet in place of the dust filter. See pics. The pipe work runs inside the near side inner wing and is covered by the wheel arch liners so it's very neat and hidden away. I wanted minimal pipe work and joins to reduce the possibility of leaks. The standard pump and charge cooler is thrown in the bin as its pretty useless, even on a standard car. The pipe work is then connected to a new Eurocharged cooler and Johnson pump. It is designed to fit the EC cooler and pump only.

Our original design incorporated two Johnson pumps. This did not work well at all so we just used one pump. This was the eureka moment when it all came together. It is a simple and very effective solution to a well known issue.

If you have a map and pulley upgrade this will compliment those modifications perfectly. You will be able to consistently use WOT without the risk of high intake temps (possible engine damage) and a consistent power output.

I have have some prices for you. This includes fitting, all parts of the highest quality and vat. We can also use waterless coolant too if required.

£1100 if you have the Eurocharged cooler and Johnson pump already

Add £810 if you require the Eurocharged cooler and pump too.
 
What happens to the secondary battery? Is it still underneath and accessible?

Yes its located under the tank, l have connected a set of permanent ctek charger leads so it can be recharged / reconditioned as required.
 
Just wanted to say that we had an E55 in at our workshop today that had a PCS engine bay tank that was recently fitted, I have to admit I was a little sceptical that the tank could struggle on the dyno without huge downtime between each pull but it really surprised me.

Worst IAT was 46C and average was 36C on a 3rd gear pull even with increased boost from a pulley change.

It made it much easier to get the file dialled in as we could do several pulls without fear of rocketing temps.


savman%40ec-albums-dyno-graphs-picture8034-e55-eurocharged-sc-pulley-custom-map.jpg



http://www.mbclub.co.uk/forums/members/savman%40ec-albums-dyno-graphs-picture8034-e55-eurocharged-sc-pulley-custom-map.jpg
 
Last edited:
SO what happens to the dust filter and air intake for the cabin? I"m sure I missed something, but it looks like the air intake is blocked?

Thanks,
 
The dust filter is removed. There is a gap underneath the tank that allows air in.
 
SO what happens to the dust filter and air intake for the cabin? I"m sure I missed something, but it looks like the air intake is blocked?

Thanks,

I wear a dust mask when driving:D it also contains the giggles after repeated WOT.
 
We just dyno'd an E55 with the PCS tank, it also has lots of other mods including a Weistec supercharger and peak IAT was only 52c. Its the same car as the graph posted earlier only this time it hit 662.8bhp on first run with just a base file. :thumb:
 
Wow, excellent result Paul, congrats!
 
We just dyno'd an E55 with the PCS tank, it also has lots of other mods including a Weistec supercharger and peak IAT was only 52c. Its the same car as the graph posted earlier only this time it hit 662.8bhp on first run with just a base file. :thumb:

Hello SavMan@EC,

How is your E55 with a Weistec supercharger doing? I hope you have finished it? Any issues with installation or parts?

BR,
John
 
Hello SavMan@EC,

How is your E55 with a Weistec supercharger doing? I hope you have finished it? Any issues with installation or parts?

BR,
John


Last run was at 694bhp and car runs very well, fitment is straight forward. The pipework and wiring takes longer than actually fitting the kit. Also check and double check the bonnet before closing, we had to make a very minor adjustment to clear the supercharger snout.

Mapping the car took us several days to get the car just right but it can now be done in a day. The same base file has been used on other Eurocharged / Weistec builds since.

Cooling is very important, once we installed Killer Chiller and cold air intake it transformed the car.

Car is back with us shortly for some additional mods.
 
That is excellent, thank you for your reply. The figure is very impressive! I believe it is at the flywheel? What boost is this at?

When first installed it was 1.1bar, we then fitted long tube headers and modified the cylinder heads and dropped to just under 1 bar.
 
Aha, that's great. I read somewhere that Weistec superchargers use bigger boost than AMG but I wasn't sure how much bigger. 1 bar is where I would want it to be as well and if that gives nearly 700 HP it is amazing upgrade, very well worth it.

Lastly, what kind of torque does it have?

Thank you,
John
 
Aha, that's great. I read somewhere that Weistec superchargers use bigger boost than AMG but I wasn't sure how much bigger. 1 bar is where I would want it to be as well and if that gives nearly 700 HP it is amazing upgrade, very well worth it.

Lastly, what kind of torque does it have?

Thank you,
John

Torque was around 880nm when running 1.1bar but it's almost a straight line. It pretty much runs around that figure from 2K to 5K rpm.

Good luck with it, cooling is the key. Killer Chiller or Meth in addition to split cooling with tank.
 
Torque was around 880nm when running 1.1bar but it's almost a straight line. It pretty much runs around that figure from 2K to 5K rpm.

Good luck with it, cooling is the key. Killer Chiller or Meth in addition to split cooling with tank.

Incredible numbers, thank you. Yes, I have split cooling with rear mounted tank in mine but not much more! I will check Killer Chiller and Meth options as per your suggestion.

Thank you again,
John.
 

Users who are viewing this thread

Back
Top Bottom