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Old 27th September 2006, 07:47 PM   #187 (permalink)
Asim R32GTR
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Join Date: Sep 2003
Location: Norway / Oslo
Posts: 928
Quote:
Originally Posted by Hugh Keir View Post
Here is a logged example of the problem that is caused when a high power GTR runs the CAS for ignition timing. The graph shows a the CAS error as you go up the gears in my car, although I do not use the CAS to provide ignition timing.

The 0 to 100 scale on the left = 20° of ignition timing which if you look at the trace = 10° of ignition timing wobble

Finding a fix for this problem is straightforward when you have a non plug and play ECU like the Motec or Autronic.

It is not so easy for the Power FC, although I believe RB Motorsport are working on a solution for that ECU as well.

As mentioned earlier, the random ignition timing will give rise to lots of detonation especially up in the higher gears. This is definitely a big problem for RB26 engines.
Hugh,

wouldnt this be a problem on the stock ecu aswell??
How does the stock ecu take care of this problem?

Asim..
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