Once more, car wants to bog.
 

1987 944 Turbo...

Monday I'm having my new tires on and then start looking to eliminate this boggin problem my car seems to be having. The overall worse it ever does it is when I leave my house everyday and the car hasn't been driven for ~9 hours and I'm going in first out of my driveway and let off the gas, the car doesn't bog immediately almost a second then woooomf, very uncomfortable and annoying. If i'm under 3K RPM it will do it alot more noticeably, and at higher RPM's it's not near as noticeable if noticeable at all. Sometimes a get the feeling/sound that it's like a house fan when you keep reaching your hand up and stopping the blades it goes and kinda bounces. That's what makes me suspect it's the transmission mount. It will also want to almost stall on quick jabs to the throttle if in lower RPM ranges. MAYBE it's one of the springs, I duno.

How does a tranny mount have anything to do with engine stalling? When I read your post I keep thinking engine problem.

I had the recirculating valve come off at its hose causing the engine to "bog down" when it tried to build boost. The valve is the one that lets pressurized intake air back into the front of the turbo when you let off on the gas so you don't lose turbo rpms. But I could hear it when the turbo tried to boost. You don't mention any sound.

Did you change your waste gate?

Yeah changed the wastegate. Look, the car isn't stalling it just bucks down as if it's going to stall. THIS is how the transmission mount could be the problem:
Over time the original rubber piece separates from it's plate. The result; your transom is held only by the torque tube. In turn, your torque tube is attached by 4 bolts to your engine. Engine is held by 2 hydraulic rubber engine mounts. Good bump, will result in a total separation of your drive train, ripping the engine off it's mounts and moving entire structure forward.

Does it only do it in gear?

Si, Senor!

Lack of fuel pressure under load?

Bad AFM ?

//Magnus