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Re: [E36M3] RE: Jim C 2.8 dyno results (from Z3 list?)



At 09:17 PM 1/30/99 -0600, you wrote:

>Okay, so if you drive your car gently all week, then it will adapt
>lean/rich based on how the engine is performing at low throttle.
>Then when you go to the track on saturday and stand on the throttle,
>it may be too lean or too rich depending upon how the engine is 
>performing at WOT.  Right?

  Yes.. correct..

>So, if you are going to the track in your daily driver, and you want
>it performing its best on Saturday, you may want to flog it during
>the week -- so the software is adapting to the engine at high 
>throttle rather than at low throttle????  Right?

  It would depend upon how the thing is tuned.. 

  In practice, it's not something you can do reliably, 
  and that's the whole problem.. unless you have a bunch
  of instrumentation on the car watching load and rpm and airflow
  and such..

  Jim

>P.S.  Besides the lean/rich software, is there any other software that
>is adapting and affected by driving behavior?

  Yes.. Idle Air (idle speed), Knock Control, and TPS position

  Idle Air is affected most by load and engine/air temp

  TPS by wear and tear

  Knock Control by gas and driver behavior

  Jim


  

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