Old 26-02-2004, 07:57 PM
  #124  
Stu @ M Developments
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Join Date: May 2003
Location: Blackpool, UK Destination: Rev limiter
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M Brian,
supposing you wanted to increase the fuel at 6000rpm, and retard the ignition, would you have to alter the lookup values in the tables to do that then? or can you like drag/adjust something on the graph to do that? would you say make the 255 to 256 if it was in that particular region?
I would literally increase the number in the fuel map that corresponded to the area i was lean at. 255 is max, so if we were already at 255, we have problems, but none that cant be worked around.

The advance would be done last and again, i would simply do it from the advance screen you have seen already and adjust the number highlighted when the problem arose.



EscortWRC,
Stu, want to explain what effect timing changes have on EGT ???

Its definitely counter-intuitive.....
Not certain what you mean by counter intuitive Matt, but essentially, as long as the AFR remains constant, retarding the combustion initiation will increase EGT's and vice versa UNLESS we advance to detonation or pre Ig, in which case EGT's will be far worse than had it been retarded.

Does that help guys?