Quote:
Originally Posted by JLMounce
This area tends to get over-thought, especially with these TBI units. What you're providing as the timing map, is essentially the mechanical + advance curve of your standard distributor. If you know your curve currently and your engine likes it, just interpret that data and move it over to the EFI unit.
The only main difference is you have the ability to set a cranking timing setting unlike a mechanical curve where that's basically static depending on where the initial timing is set. Typically you'll set this a little lower to aid in turning the engine over easier.
From there, just take your current figures for your initial advance which is your idle timing, total advance which is your WOT timing and the amount of advance you have in your vacuum can which is your cruise timing. The unit's software will interpolate that data and add or remove timing as needed based on rpm and MAP reading.
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Thanks, sounds simple enough.
Dale