Supercharger bypass valves help

Joined
Jun 20, 2022
Messages
33
Location
NEPA
So my supercharger has been working very good since the install at the start of covid, until very recently. Esp today with the record heats. My bypass valve is stucking closed causing the intake air to mostly bypass the supercharger and go direct into the intake. i make maybe 1 or 2 lbs or boost. I have the Boosted tech kit. Is there any recommendation of a bolt on part that will replace the supplied bypass valve? Mine appears to only have one vac line attachment and the rod that drops down out of the vac diaphram is a bar with a hole in it that i can screw the flap lever to. The units i have seen googling Eaton M90 bypass valve have a J shaped rod that comes out of the unit which is different. Could i just stick the J bar into the hole on the flap lever and let it go?
 
Did you ever get a solution?
Having sim.issues with mine. Getting pressure back into idle motor and throttle body from the eaton. Need some kind of one way valve
 
Yes my bypass valve was not a bypass valve, it was a vac actuator from a ranger blend door so it broke apart and wasnt working. I paid $150 too much for one from john bond performance. It looks like i could have gotten the same part for 50 bucks elsewhere, but it DOES work, and he was very helpful in locating the correct part for me. I can take pics of it and if you find the same one just buy it. I am inactivity working to replace my split second box with pcm tuning, water meth etc. This kit was essy to install but its all garbage beyond the metal hard parts.
 
So far my split second box been fine my issue is this outlet on side. According to boostedtech it goes back into rocker but causes stalling via oxygen mix . The fitting garage says it should be blanked like this picture but causes stalling via back pressure in idle motor
The supercharger guy says it should have one way valve set at 2-3bar.
 
So far my split second box been fine my issue is this outlet on side. According to boostedtech it goes back into rocker but causes stalling via oxygen mix . The fitting garage says it should be blanked like this picture but causes stalling via back pressure in idle motor
The supercharger guy says it should have one way valve set at 2-3bar.

Screenshot_20221124_163816_Gallery.jpg

What rocker? I have no one way valves on mine.

Meant valve cover . This little pipe was meant to into that but caused stalling so they blanked it . Which now causes stalling again but via idle motor getting clogged due to back pressure.

When that pipe goes into cover . Causes stalling via mixture issues.
 
Does the nipple on the valve cover have a restriction in it, or is it just a wide-open nipple? Should have a restriction.

Was wide open (last garage closed it )
Kit says feed back into top of pcv.
But my thinking is it should be one way valve that holds a certain psi before releasing
 
Was wide open (last garage closed it )
Kit says feed back into top of pcv.
But my thinking is it should be one way valve that holds a certain psi before releasing

On the stock application, on a naturally aspirated engine, that fitting is supposed to have a restriction in it. It was Mopar/Jeep's version of a PCV valve. The wide-open elbow is supposed to hook to the inlet tube from the air filter.
Airflow is through the air filter then through the tube to the wide-open elbow on the valve cover, out of the valve cover through the restricted elbow to the intake manifold. This, in effect vents the engine crankcase. I don't think that would be any different on a boosted engine except possibly needing to modify the size of the restriction (not sure, never messed with a boosted engine).

With that big vacuum hose hooked to the wide-open elbow, that would be the same as a giant vacuum leak. Might even cause it to suck oil into the intake due to high vacuum in the crankcase.
 
Thanks old crow - the pipes were connected in wrong places. Only now she's occasionally stalling when at low speeds . Idle just drops and the psi is under 1 until 4k rpm.

I'm thinking 2bar map sensor and colder spark plugs and 2.7" pulley (currently 3.4) as I'm assuming this oxygen / pressure issue now ..