JDM Tuning Expert advice and discussion on JDM tuning for your S2000.

timing

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Old Mar 7, 2008 | 11:12 AM
  #1  
camuman's Avatar
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Joined: Oct 2002
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From: South Florida
Default timing

fo those who have messed with there car na, and no itbs, i was wondering what kind of timing your running up top? i was looking at the stock program that comes with the aem and its got 24 degrees on wot. i know in the end its dyno time and monitor knock sensor to get best number, so really i am just curious.

one aempower forum poster said to start with -2 degrees everywhere in timing, and he is a knowledgable poster that also is part of this forum, so i will start there.

so post up your timing numbers.
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Old Oct 22, 2009 | 09:26 AM
  #2  
Blucky87's Avatar
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I'm wondering the same thing as well. what kind of timing are you guys running at WOT on SC'd S2K's?
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Old Oct 24, 2009 | 05:27 PM
  #3  
MugenRioS2k's Avatar
 
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From: Huntsville, AL
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Dyno operators / tuners posting fuel trims is one thing; but getting a dyno/tuner to post there ignition curves is a hard thing to do.
Building timing curves for both NA and boost comes from a lot of experience combined with training and knowledge.
There are base line timing curves that a tuner starts from given the specific setup and modifications for a given car. Those base line curves is one of the most closely held tuner secrets.

Every car is going to be different some with little changes from the baseline some with a lot of changes from the baseline.

I will post up my timing curves when I get home.

I have tuned mine on a load based dyno ( Dyno dynamics) ( over 100miles of dyno time has been loged on my car; combination of steady stating and 3rd 4th and 5th gear 100 throttle pulls)

With 3 different A/F probes ( PLX wideband in the header, Dyno wideband in the driver side tip and an innovate in the P side tip)

And a Defi EGT probe 1” after the final collector in the header ( header extensively wrapped with two layers of thermotech)

Another thing to note I have never seen 10 deg F over ambient IATs even in boost.

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