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Power Band Understanding


Davo

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All engines can benefit from minor changes in cam timing, ignition timing, advance curve, cam to follower clearances, etc. There's another 2 or 3% power to be had! However you are not at that stage yet. You want nice reliable running and that comes from a safe standard set of adjustments that will suit all pintos of your type. 10 deg BTDC is a good figure. Easier starting. Very unlikely to get pre-ignition at high load.

If you were tuning to max power the more ignition advance the engine can run without pre-ignition the more power it will make but for a road car and random quality pump petrol a safety margin is wise.

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