Anybody else have vacuum coming thru your FMU? Where the screw is to adjust at idle mine is pulling vacuum??? Not sure if it has always done this or what?

Ryan

 

It should be pulling vacuum at idle. Under boost, it bleeds off any excess pressure. That's how you adjust your rate of gain without changing discs like on a Vortech FMU.

 

Understand part of that... It is actually leaking vacuum from the FMU--the hole in the adjuster screw has vacuum being pulled through at idle??

 

Correct. It should be small enough to not effect how the engine runs though.

 

hows that new miniram running?

 

ehh.. running ok... I am still working out some bugs.. it seems to idle high and is a little hesitant off idle.. I am checking for vacuum leaks, already changed out the plugs and double checked the timing... It has more I just need to find it, I think a dyno tune is the only thing to do... Will keep all posted!

 

I am saving all this info for future reference....