VORTECH not making boost---help

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12-02-2007, 06:03 PM

D_Gusler

3rd Gear Member

Thread Starter

Join Date: Jun 2007

Location: Danville, VA

Posts: 890

VORTECH not making boost---help

Alright guys, got the base vortech kit in. Alls good there. Now I need some help.

I'm only making 4-5 lbs boost peak.
Has the stock 3.80" pulley----supposed to make 8.5-9.5 # of boost.

Vehicle is pulling approx. 20 in" vaccum at idle according to the guage.
Like I said, makes 4-5 psi max.

Checked the vacuum lines--appears ok
Checked the bypass-valve-- appears ok--plunger moves when I press it in--vacuum line is connected in line to the fuel pressure vac. line.

ANY IDEAS

Also, if anyone has a pic of how the vacuum lines are connected it would be great.

Also, looking for what wire to hook narrowband 02 guage wire to....

Thanks guys.

12-02-2007, 06:13 PM

Stkjock

Retired Mod

Join Date: Jan 2007

Location: Long Island, NY

Posts: 7,658

RE: VORTECH not making boost---help

how high are you revving? and how are you measuring your boost?

12-02-2007, 06:34 PM

D_Gusler

3rd Gear Member

Thread Starter

Join Date: Jun 2007

Location: Danville, VA

Posts: 890

RE: VORTECH not making boost---help

Revving to 5k+

measuring boost thru an Autometer mech. boost guage.

12-02-2007, 06:46 PM

Stkjock

Retired Mod

Join Date: Jan 2007

Location: Long Island, NY

Posts: 7,658

RE: VORTECH not making boost---help

my HO kit (which would make more boost) didn't make 6psi till about 4900 and didn't make 9 till 6000 so u may not be far off.

check that the belt is tight and that the connections for your gauge are snug.....