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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
Couple of things on a suck through.

This is a more typical way to set up a motor. New car makers do not to a blow through.

With the Carrera 3.2 the AFM gets pegged at around 180 rwhp of air flow and mostly is not used any further to determin fueling so it is the RPM table on the chip and the raising rate fuel pressure reg that determines your fueling.

The only time there is more CFM measured at the AFM between the two should be when you let off the throttle and the blow off valve opens and vents to atmosphere. With EFI the fueling is mostly stopped when the throttle is lifted so this should not be an issue. Worst case you will spit a little flame out the exaust.

Check w Todd about this as he is the expert. It should not make much difference.

If you want he can convert you to a boost sensing system which takes the AFM out of the system altogether and you get a program to map your own chip.
Old 09-17-2008, 07:34 AM
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