Originally posted by Bradness:
This exact same subject was discussed on these boards many moons ago, around the time I joined CEG. I been around these boards too long!

The ideal set up, as used by Porsche (VarioRam) and the Probe/MX6 was an actuating valve in the plenum connecting tube which opens & closes via preset parameters. Now the calculated RPM for open/close is extremely complex and on our cars there is simply NO ROOM to add this pipe. The power steering pump and motor mount are in the way.

There are existing plugs in the RH & LH plenums used to clean the sand from the casting and could be easily used. It's getting that piece of pipe in there somehow. If anyone can figure this 1 out, I'm all ears (& eyes).

It would be easier to fabricate a tubular UIM (it has been done-I have the pix).



Could you post the pics? And where does the pipe on the 3.0L MX6/Probe go to? Looking at my split-port 3.0L aluminum UIM, I don't see where it can go.


Driving the Caliber Side project: The LT-5 Fiero is being born..