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HP Tuners and timing

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Old Sep 30, 2013 | 10:12 AM
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Default HP Tuners and timing

What should HP tuners show on the scanner display for a stock engine at idle, and at various RPM?

Does this figure shown on the scanner indicate base timing, or overall with advance?
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Old Sep 30, 2013 | 11:29 PM
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There is no mechanical or vacuum advance without a distributor. The figure on the scanner is the actual timing.
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Old Oct 1, 2013 | 02:42 PM
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Does 18* @idle to a max of 40* @ RPM sound about right, sounds a bit high to me?
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Old Oct 1, 2013 | 09:24 PM
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Idle timing for a stock LS1 with unmodified tune goes from 8° to 28° max
There are a few adders that can add up to 7°

It is uncommon to see more than 25° for a healthy engine. Post a datalog to see what is happening
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Old Oct 1, 2013 | 11:33 PM
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around 18* idle. To see a stock LS1 file go to hptuners and download one.
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Old Oct 2, 2013 | 12:52 PM
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Originally Posted by MontecarloDrag
Idle timing for a stock LS1 with unmodified tune goes from 8° to 28° max
There are a few adders that can add up to 7°

It is uncommon to see more than 25° for a healthy engine. Post a datalog to see what is happening
O.k. I will get a log. In your guys' opinion, would this much advance cause this?
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Old Oct 2, 2013 | 07:43 PM
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Cause what?
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