How much boost?

[1439/2000]

I know you can set the vtec point and tune a little bit with it but i didn't think you can do the same with just a vafc.

There are a bunch of honda guys with just safc.

[99SI]

I know you can set the vtec point and tune a little bit with it but i didn't think you can do the same with just a vafc.

There are a bunch of honda guys with just safc.

VAFC and SAFC do the exact same thing for tuning, however, the VAFC allows you to adjust the Vtec engagement point. As far as tuning of the Air and Fuel, it does the same as an SAFC. If I were going to be running a turbo setup I would definately be changing to obd-1 and running turbo edit on a chipped p28 ecu.