MSD 72lb Lag times

[SRBURG13]

Hey all,

Well, I searched and searched, and I can't seem to find a definite answer to what the lag time for the MSD 72lb/hr topfeed injectors are, so that I can input that into my Power FC.

Anyone happend to know what it is. We even phoned MSD, and they said they didn't even know, go figure.

Thanks.

[SRBURG13]

No one here is running #72 injectors with a power fc? Everyone is just guessing their lag times???

[RBS14]

lag times on most injectors are under a tenth of a millisecond. Put whatever you want in there, because you are going to tune it anyways, so the fuel it is going to inject on opening and closing will all be counted in the a/f ratio that the wb02 senses, so it doesn't really matter. Also, above ~2krpm it is impossible to get the injectors to inject exactly when the intake valves are open, so the timing isn't all that important in the end either.