afc question

Any idea how far the safc needs to be backed out for 780's on a 2g? The car sems to run best (but still really shitty) at -50. I cant get it set.
Thanks

[Alpine TSi]

Just get DSMLink. That much air being taken out can't be good for keeping you in the appropriate timing maps.

[Shane@DBPerformance]

You are probably going to need something like -42% on the low throttle settings. On high throttle, it will vary from one setup to another, but there is a good chance you might need to go farther then -50% depending on the turbo and boost you run. Why do you have such large injectors with only an AFC? 780cc injectors would support around 600whp, the closer you are to the injector size that you actually need, the better with an AFC. Your timing is going to be all out of wack with you having to go so far negative on the AFC.

[slowbubblecar]

he is just using a 20g now and plans on using dsmlink but he needs to order it first.

[john]

My car was all f-ed up at -35 or so. I had the same size injectors but the 2g MAS leaned it out a bit. Then I found out I had an Eprom ecu. Eric fixed that problem.