Street/Track Suspension Setup - Rennlist - Porsche Discussion Forums

Notices
997 Forum
Sponsored by:
Sponsored by:

Street/Track Suspension Setup

 
Old 09-17-2016, 12:07 AM
  #1  
jglaze
User
Thread Starter
 
jglaze's Avatar
 
Join Date: Oct 2015
Location: East Baynia
Posts: 310
Default Street/Track Suspension Setup

Went in for a pre-DE tech inspection today and my suspension failed the inspection, which means it's time for a new setup. I'd already started down the route of acquiring a DSC box (I do have, and would like to keep PASM enabled), GT3 LCAs, and new drop links, but now I'm left wondering what direction I should head with the struts.

I do the occasional DE (max 4-5 events/yr), running street tires. Most of my time, however, is spent avoiding potholes around Boston. Since the car isn't a DD, I'd be ok with a slight drop (I had been looking at Eibach springs) and slightly more aggressive setup, but I'm planning to err on the conservative side (no solid bushings/monoballs/full race coilovers/etc). I'm also not interested in dropping massive amounts of $$$ since I unexpectedly had to buy a new DD two weeks ago.

Help me spend my money...just don't tell my wife.
jglaze is offline  
Old 09-17-2016, 02:25 AM
  #2  
Hella-Buggin'
Addict
Rennlist Member
 
Hella-Buggin''s Avatar
 
Join Date: Nov 2009
Location: SF Bay Area
Posts: 2,233
Default

If you want the DSC and PASM, go for Bilstein Damptronics.
Other wise, I hear great things about the Ohlin R&T, although you loose the dash switchable adjustment. I'll probably do the damptronics when mine fail. 80k so far and they seem to be in good shape though.
Hella-Buggin' is online now  
Old 09-17-2016, 02:34 AM
  #3  
Hella-Buggin'
Addict
Rennlist Member
 
Hella-Buggin''s Avatar
 
Join Date: Nov 2009
Location: SF Bay Area
Posts: 2,233
Default

Originally Posted by Hella-Buggin' View Post
If you want the DSC and PASM, go for Bilstein Damptronics.
Other wise, I hear great things about the Ohlin R&T, although you loose the dash switchable adjustment. I'll probably do the damptronics when mine fail. 80k so far and they seem to be in good shape though.

I have the GT3 LCA's and am running 2 degrees up front. That's the max my tech recommended for a car driven on the street as much as mine. He also recommended avoiding monoballs due to increased stress on rough city streets.
I imagine Boston is on par with San Francisco for crappy roads.
Hella-Buggin' is online now  
Old 09-17-2016, 08:26 AM
  #4  
jglaze
User
Thread Starter
 
jglaze's Avatar
 
Join Date: Oct 2015
Location: East Baynia
Posts: 310
Default

Originally Posted by Hella-Buggin'
I have the GT3 LCA's and am running 2 degrees up front. That's the max my tech recommended for a car driven on the street as much as mine. He also recommended avoiding monoballs due to increased stress on rough city streets.
I imagine Boston is on par with San Francisco for crappy roads.
Yeah, it was recommended that I keep within the tolerances of the stock GT3 alignment. As a recent transplant from SF, I can attest that the roads in Boston are FAR worse than those in the Bay Area. I'm at 90k, and have only had the car on beantown roads for a year and I think that's what broke my car...

Damptronics do seem to be the way to go, but hopefully someone will chime in whose gone that route.
jglaze is offline  
Old 09-17-2016, 10:03 AM
  #5  
motopix
Addict
Rennlist Member
 
motopix's Avatar
 
Join Date: Feb 2015
Location: NoVA
Posts: 627
Default

I have new B16s, gt3 LCAs and the DSC box. It's a great setup. Expensive though...

I have the old set of B16s damptronics sitting around until I put in some effort into sending them to Bilstein to be rebuilt. Let me know if you have any interest in them. Rebuilding is pretty cheap from what I understand.
motopix is offline  
Old 09-17-2016, 10:09 AM
  #6  
swartzzz
Addict
Rennlist Member
 
Join Date: Feb 2011
Location: Pittsburgh, PA
Posts: 268
Default

I am curious what failed the inspection? Was it a strut leaking???
swartzzz is offline  
Old 09-17-2016, 11:57 AM
  #7  
semicycler
User
 
semicycler's Avatar
 
Join Date: Jun 2012
Location: MN
Posts: 1,476
Default

B16 Damptronics, GT3 style split LCA's in front for more camber than the stock setup allows, DSC box, and perhaps sway bars either H&R to keep costs down or used GT3. If you drop more than about 1/2" then consider sway bar drop links too to take out any preload. Just use the rubber boots over the endlinks to keep the noise down.

Keep all the rubber bushings but refresh the upper strut mounts with new OEM parts while you are in there. Shoot for GT3 alignment specs, maybe a hair higher negative camber in front. It's a fantastic street setup and takes corners amazingly well.
semicycler is offline  
Old 09-17-2016, 02:09 PM
  #8  
lowbee
User
 
lowbee's Avatar
 
Join Date: Jun 2016
Location: Toronto
Posts: 435
Default

So if my car is not lowered but want more negative front camber, do I need the GT3 LCA ? or is that only required for lowered cars ?

For the DSC box, I assume I can get a file (program) to make the non-sport mode even more comfortable (softer) on bad road but still benefit from the dynamic changing of the damping rate at each corner independently during braking and cornering ?

Are my understandings correct ? TIA

And if the OP want to spend less than B16, why not consider replacing only the dampers with Bilstein Sports B6 for a fraction of the price and still get the benefit of PASM ?
lowbee is offline  
Old 09-17-2016, 02:22 PM
  #9  
swartzzz
Addict
Rennlist Member
 
Join Date: Feb 2011
Location: Pittsburgh, PA
Posts: 268
Default

Only two ways to get more than -1 degree of negative camber. Either camber plates on the top of the strut, or Lower Control Arms. You benefit with a slightly wider track with the Control Arms. In my opinion, it was the best suspension mod I made.

Also, the new DSC control module will have two settings, stock and NOT stock! The TPC guys have those shocks doing what they are capable of doing! A great addition to the set-up. If you do the LCA's, consider the rear toe links. They really keep the rear track in check and pointed where it should. With an aggressive camber alignment, the factory toe links with rubber are not stable. I used Champion, btw.
swartzzz is offline  
Old 09-17-2016, 02:37 PM
  #10  
gasongasoff
Addict
Rennlist Member
 
Join Date: Jan 2011
Location: California
Posts: 555
Default

Originally Posted by semicycler View Post
If you drop more than about 1/2" then consider sway bar drop links too to take out any preload.
Can you explain more? My drop on B16's is probably around 1/2" or more, and I have H&R front/rear swaybars, but I reused the OEM drop links...
gasongasoff is offline  
Old 09-17-2016, 04:40 PM
  #11  
kisik
Addict
Rennlist Member
 
kisik's Avatar
 
Join Date: Sep 2008
Location: Newton MA
Posts: 513
Default

Not sure what failed. The cheapest way just to replace stock for B4s OEM replacement. Get LCAs + DSC box. That it is it. If you get to DEs seriously, all New England tracks are very uneven with lots of pavement and height changes. No need for stiff setup. Soft is good. Keep stock. You will be fine. I am in Boston too. Send me pm if you have any questions. Invest more in coaching and good instructors. Your car is fine. Join us for Palmer. More challenging than Glen.

---------------
997.1 C2S
kisik is offline  
Old 09-17-2016, 06:03 PM
  #12  
177mph
Addict
Rennlist Member
 
177mph's Avatar
 
Join Date: Nov 2004
Location: NJ
Posts: 2,175
Default

My .02. I went with Damptronics and they are the perfect compromise between city streets and track events.
177mph is offline  
Old 09-17-2016, 06:16 PM
  #13  
lowbee
User
 
lowbee's Avatar
 
Join Date: Jun 2016
Location: Toronto
Posts: 435
Default

Originally Posted by kisik View Post
.......The cheapest way just to replace stock for B4s OEM replacement. Get LCAs + DSC box.......
The B4 & B6 are priced pretty close, and I am not sure I understand how they are different. Is the B6 stiffer or does it have wider dynamic ranges ?
lowbee is offline  
Old 09-17-2016, 07:34 PM
  #14  
Fined
Addict
Rennlist Member
 
Fined's Avatar
 
Join Date: Feb 2016
Location: Raleigh
Posts: 1,184
Default

I think nwGTS has detailed a pretty in depth look into suspension changes in one of his threads around someplace
Fined is offline  
Old 09-18-2016, 12:22 AM
  #15  
nwGTS
Addict
Rennlist Member
 
nwGTS's Avatar
 
Join Date: Jan 2014
Location: Chicago, IL
Posts: 3,777
Default

Originally Posted by Fined
I think nwGTS has detailed a pretty in depth look into suspension changes in one of his threads around someplace
On mobile so can't dig it up but it's abridged in the link in my sig and easily findable in the list of threads in my profile. Semicycler has good advice here too.
nwGTS is offline  

Thread Tools
Search this Thread
Quick Reply: Street/Track Suspension Setup


Contact Us About Us Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: