C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Q's on Idle tables

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Old Oct 25, 2006 | 04:34 PM
  #1  
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Default Q's on Idle tables

I'm looking at the tune for my car to drop the idle a little bit, CAM is fairly mild and I think it doesn't need to run this high. Anyway, the values I see in TunerPro seem very odd, I'm looking at the Idle vs Coolant temp tables for Drive and P/N. Looking at a stock BAFN tune, and I have some questions, I'm hoping someone can answer.

For the values in drive, looks like everything from -40 to 32C is 750 stock, then the number jumps up to 1400 at 44C, and starts to drop back down over the next few temperture entries ending at 800 rpm at 116C. So the first question is why this dramaic jump in idle rpm at that temperture range?

Also looking at the P/N table, the values make no sense between 44 and 116C, they are all under 100, some way under (0, 12.5, 25, 50), then they go to a sensable 700 in the values for 32 to -40C.

Is the S/W definition I'm using screwed up, or is there some logical explanation for what I'm looking at?

TIA
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Old Oct 26, 2006 | 11:55 AM
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Something isnt right with those P/N table values there mate.....
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Old Oct 26, 2006 | 12:08 PM
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I discovered TunerPro is the problem, at least on my 92 bin. Using CATS now with much better results.

Last edited by scranage; Oct 26, 2006 at 07:36 PM.
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Old Oct 27, 2006 | 08:30 AM
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Was going to sugest CATS mate yetp
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