Suncoast recently posted on 6speed that they were looking for a donor car and thought the mounts could be done. Just passing on info. Time will tell.

 

"credibility worthy of the bible".... (from Pogue's post #13)

now that can open a debate...

 

???

 

Ask Bob R. about his Gen 1 PCCB experiences I know poor driving was not part of his equation.

 

^
Discussed frequently with him, and my comments stand "warrantable use". You chose to use "poor driving" but left out "plain ole wear".

It is not about one particular or specific driver; my comments are about (my) general experiences and observations. However, I won't speak for others, but in my case I will always order ceramics (and I have seen and heard about many of the supposed problems over a 7 year period)..that is putting my money where my mouth is!

 

Suncoast in Florida just quoted me $2500 to install the dynamic engine mounts in my GT3. They have a pair of the mounts in stock, and say they have already retrofitted a 997-2 GT3 with dynamic mounts.

I am going to check with P-dealers in Maryland / Virginia before committing to a 14 hour drive to Florida for this install.

 

Very, very cool!

 

Can they be retrofitted to the turbo as well?

 

I've been told that they can not for a .1 turbo.

 

I am also very interested in this for the turbo 1. Trying to find info on what is the signal that activates them. Would like to be able to just switch them on and off (from PASM button if possible), not the auto function.

 

Necro bump.

Can these be retrofitted on any .2 car or just after a certain build date?

 

In order to make any attempt to retrofit PDEM, you will need to rewire the chassis harness. Non-PDEM cars don't even have the wiring to support and Porsche has not released the wiring harness in the parts catalog. Second, the non PDEM ECU does not have the capability to support PDEM functionality. There is no programming in it to support PDEM. If you unplug a mount on a PDEM car, you get a warning light. Your Porsche tech can clear the code, but they can't disable it from tripping as the functionality is hard coded in the the ECU. On a non-PDEM car, the code for this functionality simply isn't present. At best case if Porsche does offer a retrofit, it will be an ECU re-program. Worst case it will be a new ECU. The ECU programming is also unique in that PDEM works PASM and PSM programming. For example: if you go over a sudden bump, as the sensor at the shock detects the motion change; PDEM will soften the mounts to help reduce impact throught he chassis. Just buying the mounts gives you nothing unless you have the ability for computer control and power to run them. When you can get Porsche part numbers for the harness and a flash or ECU, you will be able to retrofit.

Contrary to comments here, there are no additional sensors for PDEM. The computer looks at the same sensors (accelerometers, gyros and wheel sensors) as it does for suspension and stability management. The mounts operate actively in that they don't just go from soft to stiff, they have a range of adjustment which the computer operates based on sensor inputs. Just bolting the mounts in won't make them work.

From going from a car without PDEM to one with there, there are some very noticeable differences. The only noticeable differences on the street are you will notice more engine vibration through the chassis in Sport Mode and when going over sudden bumps. When going over sudden bumps, the impact is softened more with PDEM. On the track there are substantial differences. The most noticeable is when shifting over bumps or in corners, 2 things that traditionally unsettle a car, it is completely stable. It is almost eerie how settled it is. When you shift in a corner, the shifter moved with its normal ease and just goes into gear. With trying to shift into a corner without them, I previous had minor shifting issues where the shifter would feel like it is binding, especially shifting from 2nd to 3rd. I always have to make corrections for the shifting that resulted with the weight transfer changes. Not so with PDEM. The other one that is noticeable is when applying heavy throttle mid corner. When unclocking the steering to where it is almost straight, the back end is more settled. It was not an obvious thing with my previous car that the drivetrain weight was still shifting slightly after the wheel just went straight. After driving with PDEM it was obvious that the car tracks better at track out as you can just tell it is more settled. The greater amount of throttle coming off a corner, the more you will notice how it helps settle the car.

 

Or you guys could just put in the Wevo mounts like I did and achieve the same results for probably 10% of the retrofit price

I haven't noticed any difference on the street, but I have noticed that the transmission doesn't bind in hard tight corners when doing a 2-3 shift. Prior to the wevo mounts it would bind up about 40% of the time when taking turn 7 at sebring. Money well spent. Low technology fixes aren't necessarily a bad thing and my mounts probably won't break

 

Not sure I would agree with you there...some 997.2 engine bays have two unused and capped dongle plugs suspended just above the left and right engine mounts. Both are "wired" and lead to junction where they join other wires feeding into a main loom. I don't doubt the car's brain will need to be told to look for the e-mounts once connected, but I don't think we can rule out the retrofit unless someone has tried and failed.

 

Wevo for the win