silver91gt

also if your fuel pressure is the same with the vacum line on or off the regulator, then there might not be vacum coming from the line, or your regulator is buggered up, which would also explain the pressure drop when its shut off.

Jared_blown5.0

put new plugs in today autolite 3923's gapped at .035" and set base timing to 10 deg.... It didnt fix the rough running/ no power problem. Any other ideas?

2 kwik

is your blow off valve connected?

Jared_blown5.0

the bypass is connected from the intake duct to the discharge tube by rubber hose. I used the vacum line that runs to my fpr to splice into for the bypass could that be my problem?

2 kwik

yes
your blow valve should be in your intake aluminum hose that runs from your s/c to the t/b

Stangnsnow2

u need to get a smaller serp belt...i had the same problem ill check my car tonight for u and to see what the number on it is ...i think it was an inche and a half smaller than the stock belt...mine wore down so much that it blew apart one day....the FMU with the kit WILL NOT work with anything bigger than the stock 19lb injectors.

2 kwik

wrong...fmu with work with any injector size..you have to tailor make the spring and diaphams

2 kwik

Fuel Management Unit


The Vortech Standard Fuel Management Unit (FMU) is designed for use on multi-point electronic fuel injected engines. It is a secondary fuel regulator that installs in series with a stock regulator on the return line to the tank. The unit increases fuel pressure in proportion to boost pressure (this assumes the pump being utilized is of sufficient pressure and flow to deliver the fuel required). All Vortech FMUs feature CNC machined, 6061-T6 aluminum construction and a blue anodized finish.
The 12:1 FMU is standard in many Vortech systems. It is suitable for most applications running with original equipment injectors to maintain an air-to-fuel ratio of approximately 10.8 to 11.5:1 under boost. The pump utilized needs to provide sufficient flow to deliver the fuel pressure required in proportion to boost.
The 10:1, 8:1 and 7:1 FMUs are for Vortech applications that require less fuel pressure to maintain safe air-to-fuel ratios. The 6:1, 4:1 and 3:1 FMUs were designed for high-output custom applications where larger than stock injectors have been employed. For example, the 6:1 FMU can be used on Mustangs using either 30, 36 or 38 lbs. per-hour injectors. The 4:1 unit was designed for either 38 or 42 lbs. per-hour injectors in the same application. Vortech FMU Recalibration Kits include a new ring, washer and fluorosilicone diaphragm.[/align]











Please Note:
*Recommended for 1986-1998 Ford Mustangs with injectors listed.
Technical Tip:
When using an FMU with larger injectors or for fine tuning when other components that alter airflow are being used, Vortech offers an optional air bleed valve. This permits the rate of gain for any of the Vortech FMUs to be reduced by approximately two pounds of pressure per PSI of boost. It allows a 12:1 FMU to perform as a 10:1 unit. To alter the curve even greater, refer to our 8:1, 7:1, 6:1, 4:1 and 3:1 Recalibration Kits.[/align]




PART #
DESCRIPTION
PRICE
SELECT


6Z110-130
FMU, 12:1, 1/4" Barb Fittings
$177.95/ea





6Z110-111
FMU, 12:1, #4 SAE Fittings
$177.95/ea





6Z110-112
FMU, 10:1, #4 SAE Fittings
$177.95/ea





6Z110-114
FMU, 8:1, #4 SAE Fittings
$177.95/ea

Jared_blown5.0

kwik thats where my bypass is located.... Just took it for a ride it has 2 times less power now than it did b4 I installed the blower.

I did notice that when changin plugs my #7 cylinder plug was soaked and all other were dry. Open injector?

Jared_blown5.0

can me capping this off be a culprit?
http://i96.photobucket.com/albums/l1...5/IMG_0215.jpg