Blackbird

I am pretty sure it is but want others in the know to confirm or deny.

Is it both vacum/boost regulated or other?

Trying to verify if I am using that regulator/lines I flatline my IFR table with all the same values.

NicD

iTrader: (7)

It's both

SPRAYED 01

iTrader: (22)

So you just connect a vacum/boost source off the intake manifold? I was under the impression you could only put boost to it. Ive been running mine with a one way check valve.

No Juice

iTrader: (11)

It is Vacuum ONLY!!!

In Vacuum it will reduce the fuel pressure, and in boost it will be completely open or max fuel pressure which is about 60psi.
If its an adjustable one take the vacuum line off and set the fp to 60psi at idle then reconnect the line. It will then pull or reduce pressure at vacuum and you will see 60psi when in boost.

NicD

iTrader: (7)

Strange, every 97 vette rail setup I have seen will decrease with vacuum and raise well above the 58 psi base with boost. When I had mine it would hit 68 psi with 10 psi of boost thrown at it. Maybe you had a different regulator on it?

No Juice

iTrader: (11)

Well then I stand corrected. Is yours an adjustable one with the set screw on it? What brand?

That was the way it was explained to me by the company that sold them, Eckler's Corvette Accessories. It could be they didn't really know

y2khawk

iTrader: (5)

stock 97 regulator works just fine for vac and boost. I ran that setup many many years ago.

Blackbird

Thats what I thought Harlan, I was going off my memory of you doing it long ago.

Thanks for verification.

No Juice

iTrader: (11)

Is it 1:1 referenced though?

NicD

iTrader: (7)

yes, stock regulator is all I had ever used back then and many others.