erdocslx2

Can anyone recommend the intercooler type I should upgrade my 2004
sl55 to?

Thanks

StealthAuto

We're in the process of creating one with a fellow board member. The SL55 intercooler upgrade should be finished shortly.

-Aaron

Litho

It this going to be a do-it-yourself upgrade?

Vadim @ FD

Currently evosport and RennTech make them.

evosport is $3095

RennTech is $3995

erdocslx2

It could be a do it yourself, but not necessarily has to be.

SLcharger

Dont leave out Kleemann.

They have a complete kit with radiator, pump, hoses, brackets etc.

My kit works fine, never had a blow out on power.

Fantasm

Its to to start introducing complete replacements for the stock intercooler instead of addons. Many peoples warranties are now running out so I think it might be a more viable product

Sunny55

you could get a johnson's ic water pump to replace ur stock Bosch pump. Do a search in the e55 forums. You will definitely find some solutions. Good luck

erdocslx2

Do you think just the pump change may take care of the problem?

Vadim @ FD

Try the pump first.

SteveFox

It'll definitely make a noticable difference. After changing mine out, I haven't experienced the 'supercharger shut-off' yet. Just last night I took it to 160 on the freeway and could've kept going(limiter removed). Before the pump swap my car would 'die' anywhere between 120 and 140 due to heat soak.

Change the pump out. You won't be disappointed.

erdocslx2

I ordered the pump and had it overnighted so I can this all fixed before track days this week. I will let you know how it works. I want to do the 160 thermostat but PTE has not responded yet.

phackett

I have just replaced the IC Pump with the much recommended Johnson CM030 unit and it hasn't fixed my problem. I was therefore wondering if anyone could suggest any new ideas.
My problem is that if I do a fast run from stand still and then come to a stop, when I try to pull away agin, there's a drastic reduction in power.
Is it possible that the IC pump isn't getting electrical power? Does the IC Pump only run after the Supercharger gets hot or does it run all the time.

jmf003

If you used the OEM electrical connector then the pump will be controlled by a themostat and run only when the intercooler is hot. Some folks have reworked the wiring so that the pump runs whenever the ignition is on.

As far as your bigger question goes, its hard to say. When my pump failed I couldn't even complete a single 1/4 mile run on the dragstrip without the supercharger shutting off. Based on that experienced I'd guess that your getting some cooling but it's hard to say whether there's a defect (e.g. faulty thermostat, obstruction in the cooling line, etc.) as opposed to simply overwhelming the system.

Have you tried running your car with a datalogger attached to the OBDII port? That will give you some hard data on how quickly your IATs rise when you accelerate.

phackett

Thanks for the feedback.
When I installed the Johnson Pump, I had to cut the OEM plug off the end of the wire and make up a junction to the simple tails that came on the new pump.
What I'm thinking of doing is hooking up a 12V lamp to the same pair of wires and running it into the car so that I can see if the pump is getting power when I accelerate hard once or twice. At least this will confirm that the thermostat is telling the pump to run. Assuming this works OK, then I guess the next thing to look for is an air blockage of some sort.
Another blog told me to 'bleed' the pump after installation. Once I filled the expansion tank up, I simply eased one of the hoses to the pump off the nipple and when I saw water coming out I put it back on.
Any ideas of where the thermostat is located if this proves to be the culprit?