Raising fuel pressure and boost.

[1986SVOTURBO]

I was debating whether to get an adjustable fuel regulater to raise the pressure and possibly the boost.

Currently I run stock fuel pressure and about 18 pounds of boost. My car runs real strong. I want to get some more power from it, but I do not want to jeopardize anything happening to the car. The car has been very dependable with the current set up.

If I were to raise the fuel pressure, about how many pounds of boost can I run and will I being chancing the fact that something serious could go wrong?

Thank you.

[NavySVO]

to tune it properly, you need to dyno the car, or at a minimum run a wide band AF ratio meter

[SVOeric]

or at a minimum run a wide band AF ratio meter

just to clarify, a REAL wideband, not one of the 30-50 buck flashey light things that plug into the O2 sensor

[svoman2300]

You should be able to turn up your boost without changing the FPR. The doesn't the stock one raise pressure with boost?

[NavySVO]

The doesn't the stock one raise pressure with boost?

Yes it should if the vacuum line is solid and the diaphram on the FPR isn't pooped.

[1fastII]

I was able to run 17 lbs. with the stock fuel pressure. I could run 19/20 with the pressure bumped up and the VAM spring tightened.