S2000 Engine Management Engine management topics, map and advice.

Air Temp / Fuel Compensation Tables

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Old Dec 18, 2012 | 03:20 PM
  #11  
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^^ Sounds good, I'll check the cal. you sent me earlier today. I must have been tired when I read that email as I forgot you sent me a 1000cc 1052 map. That will help out tons, I love comparing my maps with others as I end up learning so much. Thanks for the help guys, I really appreciate it.
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Old Dec 19, 2012 | 02:51 PM
  #12  
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Originally Posted by camuman
I doubt Timg remembers. But when I first got into the game I asked him for a map and he tought me the ways and pointed me in the right direction but didn't give me a map. He must be getting old. I keed I keed. Trust the guy he knows his shit.
Sorry I missed getting you a map. For anybody else, if I don't get you something, send another message/e-mail/call. I keep all of my tuning stuff on a Windows partition on my Mac, so it's not always right at my fingertips and sometimes I forget.

Tim
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Old Dec 19, 2012 | 06:36 PM
  #13  
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you dont need alot of air temp correction, especially w/the sensor in the manifold. The sensor in the manifold is terrible at telling you actual air temp, especially once the manifold is hot. Remember that at any reasonable throttle opening the air is moving so fast through the manifold that the manifold is not going to heat the air up.

You can easily see this. Let the car run and watch the ait's climb at idle... then hold the rpms steady at around 3000rpms.. watch the air temp drop after a few seconds, that is your real temp, the temp you saw while it was at idle was the manifold temp, not the air temp. If you have a ton of correction even based on theory, you will see the car lean out at idle. If the air was really getting that hot you wouldnt see it lean out.

in other words.. dont tune the ait tables based on what you see at idle, tune it based on what you see at higher throttle angles.

Using an open element sensor in the intake tube is a much better way to measure temps.
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Old Dec 24, 2012 | 04:17 AM
  #14  
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You could install the IAT like 06+ to help you, they are before the throttle
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