SteveL

Btw, has anyone measured the efficiency of the stock intercooler? What the temperature going and out of it is?

Expat

Sounds like a good plan, I think I'm having the same issue with my pump.
One question though, is there any way of proving that the IC pump's failing without a data logger, the car feels slower some times but I'd like to be sure before replacing the pump.
Thanks

Vadim @ FD

Stock core is around 75% efficient.


When the pump dies, you loose boost.

You go from 349HP to 150HP, you will definitely feel it.

Expat

Right but there are times when the car doesn't really respond when I floor it (when joining a freeway @ ~50) and I just put that down to the C32 slow kick-down issue, am I wrong and it's really the IC pump at fault?
Thanks
Ps. the C320 was rated ~215HP

msheredy

These engines take in 14.5 lbs of boost which is approx 1 addtional atmosphere (14.7 psi) to the atmosphere that we breath in. Knowing this if your car isn't making boost you are effectively cutting its power in half. I would say 175 horspower would be more accurate.

Note that AMG didn't just strap a blower on the C320. They lowered the compression to allow for more boost. If they did then the 215 HP + 14.5psi ~ 430HP

Expat

Woo Hoo, now that's a C32 I'd like to own (as long as it had an LSD)!
Thanks for the correction, I think I will be in the market for the replacement IC pump & possibly the enlarged IC depending on it's price.

Vadim @ FD

Here is a dyno with no boost on C32, DME did not want to engage the clutch until very end, half way through fourth gear.

115HP/0.85 = 135HP

c32AMG-DTM

I can attest that the 135 hp is likely accurate - I had this problem w/ my C32 a few months ago, and was out-accelerated on the highway by a Kia. Good times.

Vadim, is the 15% driveline loss an estimate, or did that also come from testing? If so, am I correct in saying a stock C32 *should* dyno around 297 rwhp?

As an aside, I must say it's extremely valuable having an owner/tuner on the boards who has tried, tested, and verified EVERYTHING thinkable - thanks Vadim (and everybody else, 1Fast, AMG-Jerry, etc. etc. etc.).

Vadim @ FD

Stock C32s are usually around mid280s. So the loss is probably closer to 17%.

TemjinX2

so any update on this kit?

I just bought a used c32 recently, i'm interested in replacing the pump after reading all the horror stories.

I'm located in orange county as well.

Vadim @ FD

Congratulations on C32!

Pump is pretty much a bolt on installation. It is $275 installed.

AMG-Driver

Vadim,

what do you recommend to get all air bubbles out of the Cooling-System after you changed the IC-Pump or HE?

Kind Regards from Germany
Bruno

Eurocharged Rick

Bruno,

the HE will come with instructions on how to bleed the air out of the system...

AMG-Driver

Thank you very much Erick...
Kind Regards
Bruno