I recently found out the BEGI FMU has been revised and no longer contains the shims which have caused problems in the past. Older units which use shims can be sent in for machining and a new diaphram ($90). I sent mine in last week and expect it back this week.
I was curious if anyone here was using the new unit, or in particular has used both the old and new units, that could tell us what they think of it. As for myself I could never get the unit to work as accurately as I liked so I'm hoping the upgrade will change all that.
Just an fyi, but his site says it "makes using valve shims obsolete. The new valve design will provide a virtually indestructible regulator. It also creates a much more stable fuel pressure curve, and to top it off it eliminates the occasional various noises. The new design allows adjustment for increased fuel pressure range, at the onset of that increase, thus providing stable pressure under the most demanding of conditions. The new regulator design has been tested to 450 psi, without failure or calibration changes."
I was curious if anyone here was using the new unit, or in particular has used both the old and new units, that could tell us what they think of it. As for myself I could never get the unit to work as accurately as I liked so I'm hoping the upgrade will change all that.
Just an fyi, but his site says it "makes using valve shims obsolete. The new valve design will provide a virtually indestructible regulator. It also creates a much more stable fuel pressure curve, and to top it off it eliminates the occasional various noises. The new design allows adjustment for increased fuel pressure range, at the onset of that increase, thus providing stable pressure under the most demanding of conditions. The new regulator design has been tested to 450 psi, without failure or calibration changes."
