MAF vs. MAP

[Land Shark]

Guys, a MAP system is no harder to DESIGN than a MAF system

The difference is that a MAF system is much more flexible in the
real world ... with a MAP system, you have a calculated map of the
engines VOLUMETRIC EFFICIENCY, which is changed by things such as
exhausts, etc ... you measure MAP, calculate air density, and with
the rpm and VE know how much fuel you need ...

If you change the SHAPE of the VE "map" of the engine, not even the
EGO corrections (BLM for you GM'ers) will compensate completely, since
the BLM cells are much coarser than the actual VE map ... only a few
places will be actually "on" the rest, a bit off ..

A MAF system measures actual air into the engine, and needs only minor
corrections in general ...

Jim Conforti

Converting Flappers to HFM's and Speed-Density for racing use only