997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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PASM Suspension Upgrade

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Old Apr 27, 2011 | 11:04 AM
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PASM Suspension Upgrade

I cannot live with the stock suspension of the 997.2TT any longer! The car is strictly a road car, however, in firm mode, it does an understeer bunny hop around bumpy corners, making it impossible to carry speed through the corners. There is significant body roll horizontal and vertical and the car squats on acceleration. I want a fast road setting that will give me excellent handling (priority) on roads while not sacrificing too much comfort / usability.

I am currently considering the Bilstein PSS10, the TPCRacing Damptronics and TECHART VarioPlus with TECHART Noselift System. I'm currently leaning towards the TECHART. Anyone have any experience with this system?

Let me first say that I have read Cannga's posts which were very very informative (thank you), however, through my research, I've found that the following will also improve handling:
(1) Anti Sway Bars (Front and Rear)
(2) Strut Brace
(3) Toe Links
(4) Control Arms
(5) Thrust Arms
(6) Dog Bones
(7) Polyurethane Bushings
(8) Bumpsteer Kit
(9) A-Arm Kit

I'm in over my head and really do not know what I'll need for the road and what will really sacrifice comfort and daily usability, so I'm hoping some of you guys can help me out.

I really don't wanna leave out potential improvements to my car's handling, but don't wanna put on track parts which will not help in road usage.

Thanks!
 
Old Apr 27, 2011 | 12:30 PM
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Not sure where you're located but the first thing you should do (and more important than whose system you use IMHO) is to find a LEGIT shop to do the work.

there are more porsche "shop's" than you can count - however, those that are truly qualified to set up and tweak this car's suspension are few and far between.

And, yes while all those extra pieces you mentioned will improve the car's handling, it will start to become a compromise on the street.
 
Old Apr 27, 2011 | 01:10 PM
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Plus one on Chris post , if you are looking for a better comfort , non of above suspension will provide better ride then stack.You'll see a big improvement in car handling. .
 
Old Apr 27, 2011 | 02:15 PM
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I agree with Chris here. All those upgraded parts are designed to improve handling, but it is all useless without a shop that really knows proper suspension tuning. If not setup right, all you are going to gain is a stiffer ride..

Before you buy any suspension upgrades, do the research on which shop does the best work in your area first. I have found that suspension tuning is more art than science. Most of it is beyond a normal person's level of comprehension (inclduing mine) and that is why an experienced shop that has lots of tuning experience is critical to getting the suspension setup results you are looking for. Good luck with the mods..
 
Old Apr 27, 2011 | 03:18 PM
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TPC has a kit where they modify the Bilsteins, put on straight rate springs, include sway bars, links and the rest. I've been pretty happy with it, and its definitely a complete integrated package.
 
Old Apr 27, 2011 | 04:04 PM
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Not to state the obvious but have you tried a more aggressive, track oriented alignment as a first step? It can have a dramatic effect on handling, especially since many times the alignment can be 'off' from the factory. And don't expect your local Porsche dealer to be able to always provide you with an excellent alignment compromise re: street/track. Research local independent shops also.
Bish
 
Old Apr 27, 2011 | 05:07 PM
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Be careful what you wish for.

+1 ^^^^ What he said. Unless you are doing more track than street or have roads with no traffic with plenty of bends you can nail it around 100% of you dd drive time i wouldn't mess with the ride comfort. A decent alignment and (maybe) a set of sways will be more than adequate.
 
Old Apr 27, 2011 | 06:47 PM
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Thank you all for your help. I am learning so much from this forum. Yes, I have a good person to handle my tuning / adjustments. And yes, I won't have many fast corners I can take safely on the roads, but since this will be a road car, the corners are tight corners where there isn't any room for error. So, I'm trying to get my suspension setup to be very precise. Don't know if this makes any sense.

In fact, the person who will help me with the installation and setup actually gave me similar advice as you guys did. So, can I summarize that I should just do the coil-overs, sway and strut bars, then set up the system well and skip the other arms, bushings and links and that should be the perfect setup for the roads?

Thanks!
 
Old Apr 27, 2011 | 06:55 PM
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i did lots of research, went w/ gmg sways and springs...incredible upgrade
 
Old Apr 27, 2011 | 07:45 PM
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Originally Posted by xseal
TPC has a kit where they modify the Bilsteins, put on straight rate springs, include sway bars, links and the rest. I've been pretty happy with it, and its definitely a complete integrated package.
Yes I hear the TPC set up is a big step forward from the out of box pss10's.
So TPC dont use the 2 piece springs (helper springs) like the PSS10? Rating the stock set up as a 10 how would you rate the comfort level of the TPC compared to the stock ride comfort?
 
Old Apr 27, 2011 | 07:55 PM
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Originally Posted by handdoc
i did lots of research, went w/ gmg sways and springs...incredible upgrade
+1. I went with the recommendations of handdoc and ttsurgeon and went with gmg springs and sways. Perfect stance and perfect handling and ride for street use. Also saved big dollars over going with a coil over set up.
 
Old Apr 27, 2011 | 08:19 PM
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I would keep it simple at this point, alignment and a rear GT2 sway bar, then go from there. The front strut brace is a waste of money, the car already has one, same part is used on the factory race cars.
 
Old Apr 27, 2011 | 09:57 PM
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Originally Posted by teolax
+1. I went with the recommendations of handdoc and ttsurgeon and went with gmg springs and sways. Perfect stance and perfect handling and ride for street use. Also saved big dollars over going with a coil over set up.
Bingo.
 
Old Apr 27, 2011 | 10:27 PM
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tried 4 setups in mine. Imo stiffer springs with stock shocks= no go. Was really unhappy with this setup, not confidence inspiring at all.
I would say get something like a B16 + sways + toe links (a must in my experience) and thats it. Corner balance and align with 1-1.5 degree camber and it will be night and day.
 
Old Apr 28, 2011 | 02:04 AM
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Really? My car already has a strut brace? Awesome!

How should I set up my sway bars? Medium/Medium?

I've posted similar questions on this forum. How much will the reduced weight of PCCBs and Titanium Exhausts affect handling?

Thanks!
 


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