Quote:
Originally Posted by GregWeld
After replacing THREE Dual Syncs --- I switched to batch fire and run a regular MSD 6 Digital box and MSD distributor.... I don't really need the sequential firing mode since I don't have to worry about emissions and or getting the very last .01 MPG out of the pigs.
NEVER once had a problem with anything EFI after that.
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It's not just the last .01 MPG but also duty cycle of the injectors. With bank to bank mode you end up using twice as much duty cycle since the injectors fire twice as many times. The injectors all firing in the rail also make for inconsistent A/F cylinder to cylinder too, since the pulses are all banging around in the same rail.
Sequential is also worth some HP, emissions and low speed drivability. There are many ways that are better than any of the dual sync distributors out there.
My favorite way is a MSD or FAST crank trigger for RPM and a regular MSD distributor modded to be a cam sync. That will have zero problems and the crank trigger is way more accurate in the timing department. This setup will work with most stand alone ecus no matter what the brand.