Dec 21, 2005 12:34:25 AM
- KiwiCanuck
- Co-Pilot
-
- Loc: Canada
- Posts: 210, Gallery
- Registered on: Sep 14, 2005
Rear bushings -- sway/lurch/body-movement with 2005 PASM
This is the last reply in the 'PASM-handling' thread, which we should all pay some attention to. This effect has been noted in NA, European, UK PASMs, and now has been resolved ---- and we 2005 997/997S owners need a Porsche recall!!
Now follow this ----
Quote: Paul S in TX said:
"Read through the article linked in the thread on the PCA Club Coupe Article found in the Feb 06 Excellence. They said that they didn't find the anomaly in the 06 and mentioned a "cure" of rotating the bushings 90 degrees in the suspension (flip flops the soft and hard sides of the bushings to alleviate the sway/lurch issues noted in the earlier press reports on PASM)"
AeroSmith:"I just read this article myself"
From EXCELLENCE: Quote:
"As the realization that the 2006 Club Coupe's handling is nothing short of incredible filters in, another realization comes up: This 997 has PASM. It's a system Excellence and Autocar have pointedly criticized in 2005 997s. Our concern revolves around a disturbing mid-corner lurch in the rear end of PASM-equipped 997s-something that's just not there in this car."
AeroSmith: "Yep, it's not there in my 2006 CS-X51 either.And more from EXCELLENCE":Quote:"Then we realize this is the first 2006 997 with PASM that we've driven. PAG will probably never admit a change has been made, but we suspect a revision to the rear suspension bushings. Olaf Manthey, a well respected Porsche tuner based in at the Nurburgring, says that the 997's PASM "lurch" can be eliminated by turning selected rear suspension bushings--meant to be hard in one direction and soft in another--90 degrees. Porsche's solution is probably a better fix. We'll need to spend more time in 2006 997Ss--but, for the time being, our reservations about PASM and 997s appear to be obsolete."
AeroSmith: "This may be why I don't sense anything wrong in my 2006's PASM handling characteristics. I guess it's just a 2005 thing. KiwiCanuck, I'm sorry. I now realize that we're driving two different PASM equiped cars and that the problem you describe has been eliminated from my '06."
Now this is me, KiwiCanuck: I suggest that we all check for this effect, which I had no trouble in finding. It COULD be a matter of quality control and tolerences (in a $100K Porsche Carrera?!), so that all NA cars MAY not troubled with it. But I suspect that it is there for all of us, or at least certain months of production, as EXCELLENCE found this in EVERY PASM 997 they drove in NA and Europe.
I am very displeased with Porsche, as this should have shown up in production testing --- one presumes it was not in the cars that Rohrl drove around the North Ring. I suggest we make noise with our dealers and get a free installation of the new bushings. The last car that felt like this was a 1929 Antique Dodge I drove, and the lurch was as the body settled on the rubber bushing/bump-stop.
Mildly outrageous!
KiwiCanuck
Now follow this ----
Quote: Paul S in TX said:
"Read through the article linked in the thread on the PCA Club Coupe Article found in the Feb 06 Excellence. They said that they didn't find the anomaly in the 06 and mentioned a "cure" of rotating the bushings 90 degrees in the suspension (flip flops the soft and hard sides of the bushings to alleviate the sway/lurch issues noted in the earlier press reports on PASM)"
AeroSmith:"I just read this article myself"
From EXCELLENCE: Quote:
"As the realization that the 2006 Club Coupe's handling is nothing short of incredible filters in, another realization comes up: This 997 has PASM. It's a system Excellence and Autocar have pointedly criticized in 2005 997s. Our concern revolves around a disturbing mid-corner lurch in the rear end of PASM-equipped 997s-something that's just not there in this car."
AeroSmith: "Yep, it's not there in my 2006 CS-X51 either.And more from EXCELLENCE":Quote:"Then we realize this is the first 2006 997 with PASM that we've driven. PAG will probably never admit a change has been made, but we suspect a revision to the rear suspension bushings. Olaf Manthey, a well respected Porsche tuner based in at the Nurburgring, says that the 997's PASM "lurch" can be eliminated by turning selected rear suspension bushings--meant to be hard in one direction and soft in another--90 degrees. Porsche's solution is probably a better fix. We'll need to spend more time in 2006 997Ss--but, for the time being, our reservations about PASM and 997s appear to be obsolete."
AeroSmith: "This may be why I don't sense anything wrong in my 2006's PASM handling characteristics. I guess it's just a 2005 thing. KiwiCanuck, I'm sorry. I now realize that we're driving two different PASM equiped cars and that the problem you describe has been eliminated from my '06."
Now this is me, KiwiCanuck: I suggest that we all check for this effect, which I had no trouble in finding. It COULD be a matter of quality control and tolerences (in a $100K Porsche Carrera?!), so that all NA cars MAY not troubled with it. But I suspect that it is there for all of us, or at least certain months of production, as EXCELLENCE found this in EVERY PASM 997 they drove in NA and Europe.
I am very displeased with Porsche, as this should have shown up in production testing --- one presumes it was not in the cars that Rohrl drove around the North Ring. I suggest we make noise with our dealers and get a free installation of the new bushings. The last car that felt like this was a 1929 Antique Dodge I drove, and the lurch was as the body settled on the rubber bushing/bump-stop.
Mildly outrageous!
KiwiCanuck
I think it's great (and maybe unique) that a professional automag editor shares his views with a forum of car nuts (RC: maybe this is the first time ever ?). Thanx a lot. BTW: your profile shows that you are driving a Boxster - any comments on Boxster + PASM (just kidding)
