AFR transition from vac to boost, like an N/A on WOT?
Discussion
Just thinking about this, as the turbo spools and goes from vacuum to boost hitting atmospheric pressue, should the AFR be 12 at this cross over point? I was just thinking this as 12's supposed to give the most power on n/a engines WOT in the power band so is a turbo at the transition wanting similar fueling before its providing positive pressure?
Herman Toothrot said:
so run it a bit leaner then, at present i appear to be 13:1 AFR on the transition.
No! Richer and less ignition advance. (13:1 is probably OK.) It'll make the engine run less efficiently and produce more exhaust gasses. After the turbo is spooled, ramp the timing back up.dnb said:
Herman Toothrot said:
so run it a bit leaner then, at present i appear to be 13:1 AFR on the transition.
No! Richer and less ignition advance. (13:1 is probably OK.) It'll make the engine run less efficiently and produce more exhaust gasses. After the turbo is spooled, ramp the timing back up.Gassing Station | Engines & Drivetrain | Top of Page | What's New | My Stuff