If your injectors are large enough to handle your power output will it cause any problems tuning if you just have the factory fuel pressure regulator?

I'm guessing that it doesn't see "boost" so the fuel pressure will quit rising at 43psi. Can this be taken care of with tuning or is an afpr like the aeromotive needed?

 

The factory regulator is manifold referenced so it would see boost and rise at a 1:1 rate with boost. Your additional fuel will be taken care of by ecu tuning.

 

Thanks, just wasn't sure if it could "see" anything oter than vacuume.

 

Are you sure about this? If the stock regulator rises on a 1:1 ratio to boost then why do some people(me) use ati's fmu's to increase fuel pressure?

 

+Because they do it at a higher rate.. 4:1 10:1 etc

 

Thanks