chevybayboy

iTrader: (6)

Ok just got done installing my d1sc setup and my and gauge isn't reading anything even when I give it a little gas. My blow off valves are staying closed as well. I'm using the -2 supercharger spring. I'm pulling vacuum from the brake power booster if that helps any Tha KS in advance

conan

iTrader: (5)

Are you driving the car or just throwing some rev's at it in neutral ?

slocaddy

Somebody stole the procharger?? Dam ricers.....

Is your gauge known to be good/ good connections?

sweet99ss

iTrader: (41)

This^. You won't build boost sitting there without a load.

ramairetransam

iTrader: (18)

do you have one or two valves . what kind of valve or valves?

The Alchemist

iTrader: (19)

You will in fact build boost free reving, it's not a turbo.

Ate you sure you got the correct rotation blower? Post a pic of the compressor wheel.

forcd ind

iTrader: (7)

You say a little gas-what RPM
Depending on its pulley size, you may need higher RPM
Go out and drive it

Bob@BruteSpeed

iTrader: (16)

Any updates from the OP? Bob

Fall Line

iTrader: (5)

While free rev'ing the engine pulls a vacuum, this keeps the recirc/bov open so you dont build boost. At least that's how my D1SC setup works. Now if I give it a quick mash of the throttle I could see a boost spike until the engine catches up.

The Alchemist

iTrader: (19)

I have a TiAL blow off valve, with a 12lb spring in it, so when I hit the throttle, my TiAL closes, and it builds boost. This makes for a much more responsive setup. If you rev the motor to 4000rpm quickly, it will close the bypass valve and make boost IF the blower is spinning the right direction and you don't have other issues.

The first thing he needs to do is confirm he has the right blower setup, then pressure test the system to ensure that he doesn't have a massive leak somewhere.

ramairetransam

iTrader: (18)

you must be one of the few running a blow off valve . What made you do that over the procharger race valve like i have .

The Alchemist

iTrader: (19)

The Tial blow off valve is just like the Procharger race valve except I can adjust the spring inside to determine how soon it closes. I like that it closes as soon as I roll into the throttle, it makes for a very responsive drive and I find it's easier to modulate power that way.