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How much timing are you running with 400+ ci?

Old 06-14-2005, 05:24 PM
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Default How much timing are you running with 400+ ci?

I am just wondering what kind of full advance timing some of you guys are running with larger displacement motors. Compressions in the 11-11.5:1 area.

I believe that typically the larger motors don't tolerate as much timing at WOT as the head/cam setups.
Old 06-15-2005, 02:04 PM
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My 402 is setup for 18 degrees total timing.
Old 09-16-2005, 07:58 PM
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Still looking for more responses!
Old 09-17-2005, 07:18 PM
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I have tuned a bunch of 408-427 cars and I set the timing between 24-26 degrees (difference depends on mods and what it likes)
Old 09-19-2005, 11:32 AM
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It seems like a lot of tuners feel that 18-19 is a max. with the bigger bore. I was always under the impression that a larger bore tends to like more timing. Then of course these motors are so damn efficient that they don't need as much timing when there NA.

I have a project that I feel has a bit more torque in it in the mid range and wanted to feed it some more advance. Between the dyno and data logging I guess I'll know where its going!


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