Quote:
Originally Posted by Dimman
There doesn't sound like there is any actual 'switching' of port and DI. There is continuous changing fueling of both from the sounds of it. Like they have 2 simultaneous, continuously changing fuel maps that run together.
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Yeah, sorry what i meant by switching was the cylinder environment. Direct injection is on all the time...while port fuel supplement is on at 0-3000rpm and around 6800-7400rpm. Making DI the primary source of fuel giving off a consistent weak strat across the revboard. Didn't mean it like a on and off switch...
I think the issue here is how ignition timing is effecting the two fuel maps especially at the "switch" when port comes off. Especially since DI loves lots of retarded timing, and that there are really different cylinder pressure differences between the two maps.