Sport Chrono Plus Mapping?

[fast eddie]

Hello,

Does sport chrono plus selected on the center console change ECU mapping. The literature I've seen so far states that the throttle opening directions are stepped up in relation to throttle foot pedal input...... but I was wondering if there is any change in the ignition or valve/cam timing?

If there are any links or articles anyone is aware of that explains this feature in detail, I'd love to see it.

Many Thanks!

(GO HURRICANES!!)

[Loren]

Read the Porsche Service Technik book linked (pinned) in the Contributing Members forum.

[fast eddie]

Read the Porsche Service Technik book linked (pinned) in the Contributing Members forum.

Hello Loren,

Thanks for your reply. I've read the service technik pub and really see no info re mapping other than throttle. I'm specifically looking to find if there is any change in either the ignition or valve/cam timing. I did read somewhere else that "mapping", which to me means more than just throttle opening, was implied to mean changes thrughout the power curve. And that would imply fuel, fire or valves to me. Am I wrong?

Regards,

[Loren]

The DME is main control unit. If you change the throttle map - you are changing other things (spark advance, valve/cam timing, etc.) as they are all controlled by the DME program.

I doubt Porsche would tell us specifically what it does - because then people would try yo copy it.

[fast eddie]

The DME is main control unit. If you change the throttle map - you are changing other things (spark advance, valve/cam timing, etc.) as they are all controlled by the DME program.

I doubt Porsche would tell us specifically what it does - because then people would try yo copy it.

Thanks again Loren,

You answered my question. Most of the info in the technical manual seems to address the PDK equipment and I have a manual transmission. It seems that many of the sports chrono effects apply to the PDK and that makes sense. And I understand why Porsche would not want to reveal detais of it's ECU programming. I just wondered if it was only throttle control. I will say that in Sports Chrono Plus my 997cS2 is another animal. That in addition to PASM really is another automobile altogether. This machine is phenomenal. BTW, is DME interchangeable with ECU?

Regards,

[Loren]

Yes, DME = ECU.

There are many ECU's on the newer cars but only one DME (motor control).