55k cooling upgrade

[BlackC55]

Nice quick cool down Do you have the front mounted one ?

Yes, built by us.

 

[BillyCR]

Problem is this time of the year testing is pretty pointless, most 55s wont suffer with heat problems if running well, I would be interested to see the results when its 30c outside.

I ran in the summer approx. 580bhp, with just a EC uprated Heat Exchanger, and standard bosch 10 pump, loads of data logging, and never suffered heat problems, I know its a problem, but most cars that run well and fluids changed at the correct times, with upgraded HE don't really suffer to be fair.

 

[Ginger55k]

with just a EC uprated Heat Exchanger

So with a major upgrade!!

You know the stock is naff.

Any stock e55 on the rollers for any period of time is going to suffer due to an increase in IAT's.

Thats why I posted the graph look at the difference the elavated levels of heat compared to yes this time of year blatting it down the road.

And the difference between running out in the fresh air nearly a 13 degree difference when sat on the rollers, and thats with the split system an EC HE and a tank full of cold water.

Stock would be much higher.

 

[Fryingpan78]

It's not just about having problems though, the cooler the better. 580 is impressive, and I'm not disagreeing with your point, but perhaps with more cooling you would have even more?

I know when my pump was weak, I rarely had any issues with heat/power, but now it's got the Johnson it so much better, pretty much everywhere. I can only assume that keeping it cooler would only improve it more.

I used to spend a lot of time building high power vw's, I would always make sure I had enough fuel, and enough cool, before I'd start turning anythign up.

So far, I've held back on modding my '55, it's a daily and not really why I bought it. However, when/if I do, this will likely be the first thing on my list

-t

 

[Ginger55k]

Problem is this time of the year testing is pretty pointless, most 55s wont suffer with heat problems if running well

If you think so, it really depends what you mean by problems, elevated IAT decrease in power output, or did you mean when the ECU says its to hot disengage SC pulley.

 

[Ginger55k]

loads of data logging

Maybe you could share that data so other forum members would benefit from your experiences.

 

[BillyCR]

Maybe you could share that data so other forum members would benefit from your experiences.

I have already stated what I think works well, data logging on my old car is irrelevant to others for various reasons, the path I took is already proven to work well, most would agree a simple HE upgrade is enough, that why most choose that option, even with ChrisAs new improved power (Stage 3) , he still does not suffer cooling problems, I thinks that's testament enough. and why most members run only the HE

So to clarify: remap with standard cooling works well with just a bosch 10 pump, pulley either SC or Crank then I would recommend upgraded HE and colder plugs, if your planning to track or do high speed runs then possibly ice tank, this information has been around for a long time, but as I have always said I will put maintenance on these cars well ahead of any mods, and pulling 567bhp on a dyno with just a remap from Jerry was one of the most powerful CLS55s ever seen, and was all standard at the time, but well maintained.

 

[Ginger55k]

I have already stated what I think works well, data logging on my old car is irrelevant to others for various reasons, the path I took is already proven to work well, most would agree a simple HE upgrade is enough, that why most choose that option, even with ChrisAs new improved power (Stage 3) , he still does not suffer cooling problems, I thinks that's testament enough. and why most members run only the HE

So to clarify: remap with standard cooling works well with just a bosch 10 pump, pulley either SC or Crank then I would recommend upgraded HE and colder plugs, if your planning to track or do high speed runs then possibly ice tank, this information has been around for a long time, but as I have always said I will put maintenance on these cars well ahead of any mods, and pulling 567bhp on a dyno with just a remap from Jerry was one of the most powerful CLS55s ever seen, and was all standard at the time, but well maintained.

Cheers Billy, got to leave it for now leaving for work shortly, will be spending most of the night monitoring pressures and temperatures, you would be surprised as to the difference half a degree can make to power outputs.

If the lights go out its not me

 

[BillyCR]

Cheers Billy, got to leave it for now leaving for work shortly, will be spending most of the night monitoring pressures and temperatures, you would be surprised as to the difference half a degree can make to power outputs.

If the lights go out its not me

No problem

 

[ChrisA]

As Billy said, I have no heat issues whatsoever and I do work the car very hard. The EC HE combined with IC30 and colder plugs seems to work fine
I am having split-cooling fitted by Acid's team hopefully on Wednesday but this is purely as I will be hitting the 200mph + speeds for a good few miles, as I have been with my Summer tyres before, albeit with no issues. This is purely a "Better safe than sorry mod" for me

 

[simon1966]

As Billy said, I have no heat issues whatsoever and I do work the car very hard. The EC HE combined with IC30 and colder plugs seems to work fine
I am having split-cooling fitted by Acid's team hopefully on Wednesday but this is purely as I will be hitting the 200mph + speeds for a good few miles, as I have been with my Summer tyres before, albeit with no issues. This is purely a "Better safe than sorry mod" for me

Chris - can you post some pics up of the installation when complete. I assume you are going for the weistec boot mounted tank. Looks a nice bit of kit.

 

[ChrisA]

Chris - can you post some pics up of the installation when complete. I assume you are going for the weistec boot mounted tank. Looks a nice bit of kit.

Hi Simon
Was hoping for the "Under the Hood" set up due to much less hosing etc but I think that would be too long time wise
I will have a good chat with Acid on Wednesday and of course I will take photos etc for all whichever set up is installed

 

[Ginger55k]

Maybe we should not state "Heat issues" as most people view this when they can feel the ultimate power stopper i.e. the SC disengage.

The fact is and always will be keep the air charge as cold as possible increasing the efficiency of the SC, as the air compresses heat is generated cool this down you can get more air into the engine/more fuel/more power.

I bet when you split the system you will feel a big difference in the power, and the difference i mean is that its the fast reduction in air temperature allowing the car to go WOT repeatedly, the only way to describe mine was it felt like the power is always there and the car is always eager.

BHP on the dyno is one thing but maintaining those levels is difficult as the heat soak and recovery times increase on the stock system.

 

[ChrisA]

Maybe we should not state "Heat issues" as most people view this when they can feel the ultimate power stopper i.e. the SC disengage.

The fact is and always will be keep the air charge as cold as possible increasing the efficiency of the SC, as the air compresses heat is generated cool this down you can get more air into the engine/more fuel/more power.

I bet when you split the system you will feel a big difference in the power, and the difference i mean is that its the fast reduction in air temperature allowing the car to go WOT repeatedly, the only way to describe mine was it felt like the power is always there and the car is always eager.

BHP on the dyno is one thing but maintaining those levels is difficult as the heat soak and recovery times increase on the stock system.

Makes sense

 

[simon1966]

I really need to understand the cooling system on our cars more. I am still thinking I like the idea of adding another HE to run in series with the current one (in my case a EC HE). I'm trying to find out a little more about the S55 cooling system as I think for whatever reason the S55 had exactly that. I think it was the only 55K variant with an additional HE. I know we haven't got much room but something can be done I'm sure.

 

[Ginger55k]

Had mine on the rollers for the first time yesterday so am no longer a dyno virgin, just a power run not a dyno tune producing 534bhp, it was a bit strange watched 6 c63's first on and off the rollers but when mine went in it was bucking like a bronco and moving around, it seemed that the operator was surprised with the torque am sure he wasn't, is that a common difference to see between the two types of car?

The operator did comment there was much more power available and mentioned over fueling?

Dyno experts please comment.

 

[Ginger55k]

I really need to understand the cooling system on our cars more. I am still thinking I like the idea of adding another HE to run in series with the current one (in my case a EC HE). I'm trying to find out a little more about the S55 cooling system as I think for whatever reason the S55 had exactly that. I think it was the only 55K variant with an additional HE. I know we haven't got much room but something can be done I'm sure.

Simon how about this, seems a bit off the wall but???? post #24
10 second club members..... post your mods and vids - MBWorld.org Forums

 

[simon1966]

Simon how about this, seems a bit off the wall but???? post #24
10 second club members..... post your mods and vids - MBWorld.org Forums

Thanks Ginger - I have seen that install before and I have discussed a similar sort of thing with Paul at EC. Seems a good idea as plenty of cold air but I think a bit over the top and maybe vulnerable for me. I'm thinking more along the lines of this as I mentioned before. Post 17 on Mbworld thread.

IC Cooling Upgrade Question - MBWorld.org Forums

 

[BillyCR]

Had mine on the rollers for the first time yesterday so am no longer a dyno virgin, just a power run not a dyno tune producing 534bhp, it was a bit strange watched 6 c63's first on and off the rollers but when mine went in it was bucking like a bronco and moving around, it seemed that the operator was surprised with the torque am sure he wasn't, is that a common difference to see between the two types of car?

The operator did comment there was much more power available and mentioned over fueling?

Dyno experts please comment.

Putting a 55 S/C on a dyno is not for the faint hearted, I have seen a few experienced dyno operators struggle and in my case bottle it when the car started snaking, loads of factors come into play, loading, the way the car is strapped down, the gear pulls, tyres, wheels (bent rims) I presume it was in dyno mode?, the only guy I have seen run them very well and consistently was Jerry for EC, I have not seen EC UK but I would expect the guys to do just as well.

Problem is the more runs you do, you can see the power get lower and lower, so the key is to get it right pre run then full run for the power figure. Your power is at the lower end, so no reason to struggle unless for some of the reasons above.

 

[BillyCR]

As far as I am aware nothing on the market brings temps down quicker than aquamist, and plenty of cars running very high power, if I was concerned and water upgrades proving to be ineffective then this is the route I would be looking at.

Aquamist HFS-3 system for 2010 ..... "Q and A" - waterinjection.info