Can an N374 BPAV be modified to work like an N370 BPAV? I have lot's of N374's but no N370's.

 

What is a BPAV? Do you mean BAC?

 

or bypass air valve? (factory blowoff)

 

I'm talking about the cyclindrical do dad on the passenger side of the intake manifold that has two coolant lines and a connector going to it. I thought it was called the Bypass Air Valve.

 

its the BAC...i know the jdm s4 units do not work with the USDM electronics as there is no adjustment screw on it

 

I don't see why it won't work. Should. The only drawback is if it does not have an adjustment screw on it. That screw on a USA version is used like the screw on top of a non turbo's dynamich chamber.........to adjust the idle air.

But that N374 should perform like a USA BAC .........maintains a idle when a LOAD is put on the engine at idle. Other than that, that's all a BAC does. Personally I'd miss the idle screw on the BAC on my TurboII.