[h2oplr11]

Having a similar problem to Mark's here too.

Recent engine overhaul (last few hundred miles); complete disassembly and new exhaust valves on #s 4 and 6. Also had some recent electrical problems. Mechanic installed new fuel pump regulator and transmission ground strap which seemed to solve my electrical issues, but now having this problem.

My symptoms are similar, but not exactly the same as Mark's. I have the "dashboard in the face" moment usually at around 1.1 bar, however I have also noticed it a couple of times at around .5 to.6 bar. Before the overhaul I never had this issue. It would top out at 1.1 bar, but never got the dashboard in the face, just a smooth ride. I'm assuming this is the fuel pump regulator cutting off the fuel, but since I've also experienced it at .5 to .6 bar I really don't know. Usually happens in 3rd or 4th at higher RPMs than Mark (4-5k). I should also mention that I have an earlier ('77) 930 and that my turbocharger was upgraded somewhere along the line. I'm thinking maybe that the new "stock" fuel pump regulator doesn't take this into consideration and thus the issue???

Not sure what everyone else's experiences are; when you floor it in 4th and the turbo tops out, does it seem like the engine shuts off, kicks on, shuts off, kicks on . . . etc???