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Old 10-23-2007, 01:56 PM   #1
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Default Need Some Help Understanding Timing

And how it works.

After reading Petes post: http://www.bonnevilleclub.com/forum/...r=asc&start=40, I am slightly confused.

Watching the Aeroforce, I see a ~ -24 idleing to cruising at 70 with the stock PCM. I have a reprogramed PCM from Boosty (thanks again Boost ) but I am leaving the stock in there to learn After reading what Todd and Boosty wrote, something ain't right. The best MPG'* that I see on the highway are 25-26, the O2 was replaced last winter and the car is well maintained.

I am assuming that the -24 is not helping the fuel economy?
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Old 10-23-2007, 02:03 PM   #2
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Greg, Your timing tables are stock IIRC. 1997'* show timing as a negative number. Cruising at 24 degrees is quite normal. I have seen up around 30'* as a normal occurence.
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Old 10-23-2007, 02:08 PM   #3
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I saw Bill'* for the first time and was wondering why he had negative numbers. lol

24* is good. 35* is pretty normal for me at 65mph. I saw 45* in the 94 on one trip.
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Old 10-23-2007, 02:16 PM   #4
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Boost, I have the stock PCM in the car at the moment.
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