Does anyone know what I need to change to alter the rpms that the intake manifold changes over (on a ME7.2, in a Boxster-S)? It's had a pair of cams in it and the resonance flap needs opening about 500 rpm later.

I've been looking through the file till my eyes bled but the trouble is I don't actually know what I'm looking for. The valve closes around 3400 rpm and >13% load and then re-opens around 5400 rpm. I've been looking for tables and bytes with values around 85 and 135 (decimal) in them, assuming (perhaps wrongly) that there's a multiple of 40 involved, since most of the rpm based map headers use a 40 rpm multiple.

It could of course be a map with rpm and load as axis, and simple on/off as the variable, I just don't know....

Also, the variocam switch points would be useful too, if anyone knows what that's called?

Thanks in advance for any help guys.

Thanks for the quick reply.
I did read that in the translated fuction-book but the maps, SUMODE0 is set to 1, SUMODE1 is set to 1 .....SUMODE3 is set to 3, which doesn't seem to make much sense to me.

There are maps with 'Sumode' in their description but they appear not to have the characteristics that the engine operates with. The cams switch fully on from very low rpm, once some load is applied and switch back around 5800 rpm, so basically what I am trying to say is that their operation is rather digital, and the maps with Sumode in their description have much variation in their output values, such as you might get with the later, 'variocam-plus' setup.

Cheers

:-)

No problem, any help at all is greatly appreciated.

Cheers

:-)