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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269

Excellent info in post 37! Thank you.

Great points.

Apx -20 on boost. One dyno -18 to -23 seems range.

Maybe one more deg for 1 bar.

Apx -2 deg more advance with twin plugs.

Heat in the cylinder from ideal AFR helps ignition.

Can I beg you for:

Recommendations as to timing for a more stock 930 from idle to 3000rpm 'if there were no boost'?

About how much more power are you seeing with twin plugs? I had heard about 3% on a NA motor from just the earlyer advance it runs.

The best.
Old 04-28-2010, 08:38 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #40 (permalink)