a tad bit confused, what to do....??

[fbodyjohnny]

You can't just "fab" something up, you need and actual bypass valve between the discharge pipe of the supercharger and the inlet pipe of the supercharger.

Something like this:

http://www.vortechsuperchargers.com/product.php?p=26

But like I said, at 2psi you don't "need" one.

And boost gauge should not be fed before the throttle body.

sorry, didnt mean to throw the word "fabricate" out there like i was trying to make a cardboard tube with a bottle cap and spring in it for a bypass valve lol... what i would be comfortable with is something similar to a Tial as long as i have plenty of room to put a flange on the pipe and also soemthing for the cold air intake... thats the easy part. how it will react to it, i dont know, but i just hate knowing that all that pressure is just STAYING in there during shifts, even if it is 2 psi lol

[dville_gt]

Proud new owner... 92 mustang gt. built 306 engine, novi paxton 1000 Supercharger, trick flow twisted wedge street cylinder heads, specially matched hydraulic roller cam, streetburner EFI intake manifold, roller rockers, gasket kit, billet timing chain, pushrods, short valve covers, billet oil fill kit. typhoon full intake system, super hooker comp headers, tremec TKO Transmission, Autometer Guages, Chrome Weld wheels.

before he changed his sig, don't forget the gasket kit or oil fill kit when you make recommendations

[Doug Hatton]

What are the details on the car? Setup? I might have missed this somewhere else....

[fbodyjohnny]

i love this car to death but damn this tiny shit is buggin me haha.

[dville_gt]

right, see thats what i have been thinking all along, the air has been metered, so therefor like you said, i should fab something to run it right back down to the OTHER pipe, after the sensor.

You can't just "fab" something up, you need and actual bypass valve between the discharge pipe of the supercharger and the inlet pipe of the supercharger.

Something like this:

http://www.vortechsuperchargers.com/product.php?p=26

But like I said, at 2psi you don't "need" one.

And boost gauge should not be fed before the throttle body.

[fbodyjohnny]

You can t into the small vac line that is connected to your fmu for your boost signal . You also need a bypass to vent pressure . You have another vac port on the opposite side of the intake from where the fuel regulator is connected if you want another port .

i think i know what ur sayin but is it possible that you could do a quick "paint" job explaining that? thank you

[Doug Hatton]

If it was me, I'd get bigger injectors, calibrated MAF, ditch the FMU and get an SCT chip tune for it. FMU's are a bandaid to a bigger problem (not enough injector).

[fbodyjohnny]

ha i know, I was not doggin you, I know you didn't install it. Just caught my eye from the get go for some reason.

lol yea. it will take me quite some time to get this fucker figured out. i can post pictures all day long about this and that but i aint shittin ya, there is just shit going EVERYWHERE under there. and its all because of the damn guages and the supercharger. god i cant wait to have a completely new setup built for it. planning on a 331 now with a new"ER" supercharger setup along with everything else just to clean it up and give it more balls than what i really need

[dumpycapri85]

I'm not sure where you are but if you want to checkout my setup you are welcome to .

[dumpycapri85]

You can t into the small vac line that is connected to your fmu for your boost signal . You also need a bypass to vent pressure . You have another vac port on the opposite side of the intake from where the fuel regulator is connected if you want another port .

[fbodyjohnny]

Regulator looks correct. It looks like it has an FMU on it on the firewall? Not sure how he's got that hooked up. My boost gauge is in about the same spot as the vac line feeding your regulator but on the other side of the upper intake (the front side). I think on those superchargers they usually have a recirc valve that dumps pressurized air back into the inlet to the supercharger but after the MAF. This air has already been metered, so you don't want to dump it to atmosphere. This valve would normally be located just before the elbow going into the throttlebody and would be connected to the elbow on the inlet side of the supercharger.

right, see thats what i have been thinking all along, the air has been metered, so therefor like you said, i should fab something to run it right back down to the OTHER pipe, after the sensor.

[mstng86]

uhm hmm well i do recall saying that im not the one that did any of this shitty work to the car... so yea, thanks i already noticed that a few months ago

ha i know, I was not doggin you, I know you didn't install it. Just caught my eye from the get go for some reason.

[fbodyjohnny]

and also, there is ZERO vacuum leak. thats already been tested out.

[fbodyjohnny]

not to sound stupid, but is it normal to have tie straps holding down that fuel control unit?

uhm hmm well i do recall saying that im not the one that did any of this shitty work to the car... so yea, thanks i already noticed that a few months ago

[fbodyjohnny]

boost gauge shows manifold pressure (above atmospheric pressure), it should be read from the manifold, not from the intake tube before the throttle body.

w/out a bypass valve the pressure is built up in the intake tube and puts pressure on the impeller itself. they are not always necessary and not all supercharger kits came with bypass valves.

if you are reading vacuum and some boost then my bet is that the gauge is hooked up correctly and you either have a vacuum/boost leak or that blower just doesn't make shit for boost with that pulley on your motor.

right, i was just thinking about how on my cobalt, i had my EBC hooked up to the cold side pipe right before the throttle body... from what i always thought, you would get a more accurate reading DIRECTLY from the pipe, BEFORE it got to the throttle body.... and ok, so putting a bypass valve from the HOT pipe, going back TO the intake pipe ( meaning the one with the air filter) so it can then be re-circulated,,, correct? or just run it strictly atmospheric discharge..???