AgSilver

My IAT's tend to run about 15F - 20F above ambient while cruising around 100MPH. WOT will bring it up to about 140F-150F with an ambient of 65F. (no chiller and no split system).

munich55

Hi Steve in Germany we got 15Grad yesterday and my iat's were about 30grad after driving in the city for some hours.
With Split system an bigger he + Johnson cm90.

cij911

Sounds similar (I believe mine are more like 20 - 25* above ambient)...If you have a larger crank pulley, your IATs will be higher and take a bit longer to come back down.

Next time you are at AMG, would you ask them a few questions :
(1) Why did they not split the system ?
(2) Why did they not run the heat exchanger pump all the time ?
(3) Their thoughts on removing the headliner (acting as a heat soak ??) ?

Thanks!

AgSilver

Are you ready for 6 million people this week?

I'm north of you in the Pfalz and get the same results without a split system.

Probably in München in a few weeks.

AgSilver

I think I can answer that - - - MB never intended the car to be any more than the world's fastest, best performing 4 door sedan out of the box . . . and that it was for several years. So today, with the help of many enthusiasts, this same car, now 10 years old, can still outperform 99% of anything on the road and at the same time cruise in absolute comfort and safety.

My W109 was built in 1968 with the same goals.

munich55

Yes Steve Munich bursts !!!

Let me know if you visit München.

I saw an booklet of the new BMW M5 F10.
There are many technical informations in like that car has 2 cooling circuits.

AgSilver

Hi Florian, I have the parts for a split system here in Germany, but I have not bothered to convert it. For me, I do not think it will add much improvement. have a larger heat exchanger and that did help.

I will let you know when we are in München