Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical chat

Reply
 
LinkBack Thread Tools Display Modes
Old 05-22-2009, 03:34 PM   #1
Registered User
 
Join Date: Mar 2009
Location: DFW, TX
Posts: 206
Garage
The long slippery slope of track mods - lets start with the suspension

I have a 2001 Box-S with US MO30 Suspension. But I want it to be just a bit stiffer, so I am asking everone what would be the sequence of adding mods to get the suspension to handle a bit better / be a bit stiffer. I want to take is slow, a little at a time (budget... ). I am thinking:

1. Adjustable drop links for the F / R Sways.
2. Delrin bushing for the sways.
3. H&R or Eibach springs (also helps to lower the car a bit).
4. Camber adjustment plates.
5. ???

Thoughts, opinions, options.....
Thanks in advance.
Rob

__________________
rob76turbo
Current Porsches: 2002 Boxster S (Speed yellow)
Past Porsches: 1972 914, 1987 944S, 1976 930, 1986 951, 1999 986, 1992 968, 2001 986 S, 2006 Cayman S, 1986 951 track car, 2001 986 S, 2005 Cayenne
rob76turbo is offline   Reply With Quote
Old 05-22-2009, 05:59 PM   #2
Rennzenn
 
j.fro's Avatar
 
Join Date: Feb 2005
Location: Virginia
Posts: 1,356
Garage
Hmmm...I've got some suggestions, but they'll alter the course a bit:
1) R-comp tires or an extra set of wheels with R-comps. The BEST mod you can do.
2) Adjustable drop links are only beneficial when you've already got adjustable sway bars. The drop links allow you to set the sways without preload when the car is level.
3) If you are looking to keep your stock road comfort, get stiffer sway bars and the drop links...But, if you are more interested in overall track handling, get a set of adjustable coilovers. I've got the K-Sports, and they have enough adjustability for both daily driving (rougher than stock, but tolerable) and competitive autocross. As a bonus, the K-Sports come with camber plates (and don't need adjustable toe links!!!), and they can be had for around $1200.
4) Depending on the track, some track brake pads may be a "must have" item
5) stainless steel brake lines and a flush with ATE Blue
6) 4 or 5 point racing harness or at least one of those seat belt locks
j.fro is offline   Reply With Quote
Old 05-22-2009, 07:43 PM   #3
Registered User
 
Join Date: Jul 2007
Location: Texarkana, Texas
Posts: 959
I agree that I wouldn't start with adjustable links or stiffer bushings for the M030 sway bars. I'd instead go to a GT3 bar in the front and Tarett in the rear, both with adjustable links. That would give you MUCH MORE roll resistance and level handling without making the car too stiff for regular driving.

After that I'd look at a set of coil overs. You've already got upgraded shocks and springs. I don't know that you'd see that much of a difference with just adding sport springs. It would drop the ride a little bit lower though.

The biggest improvement that I made to my ride are the coil overs. I've got JRZ coil overs with adjustment and remote reservoirs. The car now handles incredibly. I can push it to the limit on public roads and the car doesn't even break a sweat. The car clearly has more capability than I have nerves!

I've done camber plates. They can be brutally stiff. I would leave that for last when doing the final tweaks. Understand though that my suggestions are not cheap, but that's just the way it is, none of this stuff is cheap.

Kirk
__________________
2000 Boxster S - Gemballa body kit, GT3 front bumper, JRZ coilovers, lower stress bars
2003 911 Carrera 4S - TechArt body kit, TechArt coilovers, HRE wheels
1986 911 Carrera Targa - 3.2L, Euro pistons, 964 cams, steel slant nose widebody
1975 911S Targa - undergoing a full restoration and engine rebuild
Also In The Garage - '66 912, '69 912, '72 914 Chalon wide body, '73 914
Kirk is offline   Reply With Quote
Old 05-22-2009, 09:15 PM   #4
Registered User
 
Join Date: Mar 2009
Location: DFW, TX
Posts: 206
Garage
Track time resume

Probably should have given a bit of background. This Boxster is new to me, so I just want to have it set up a bit better for track events. I do 5-6 DE / HPDE's per (year since 2002), have R rated tires, Porsche Motorsport pads, SSBL, Motul brake fluid already. I just came out of a decently prepared 968 and want to take the Box-S to the next level.

I think that ultimately a set of coilovers is in the future, but want to find the best bang for the buck until that time.

Thanks for the suggestions. Keep 'em coming!
__________________
rob76turbo
Current Porsches: 2002 Boxster S (Speed yellow)
Past Porsches: 1972 914, 1987 944S, 1976 930, 1986 951, 1999 986, 1992 968, 2001 986 S, 2006 Cayman S, 1986 951 track car, 2001 986 S, 2005 Cayenne

Last edited by rob76turbo; 05-22-2009 at 09:15 PM. Reason: add info
rob76turbo is offline   Reply With Quote
Old 05-25-2009, 05:55 AM   #5
Registered User
 
Join Date: Feb 2009
Location: texas
Posts: 94
boxster "s"

I have a 2001 boxster s and I think the best bang for the money would be a set of coil overs with the right spring rates. then a set of adjustable sway bars and a good track alignment. I go to a track here in San Marcos H2R, the first time I went there with stock car and street tires, my best time was a 1'33:50 I have only worked in suspension set up and tires, I'm down to a 1'28:7 on my last session yesterday

Good luck and if you want to email me direct is porsche911tx at yahoo dot com
goldsc_78258 is offline   Reply With Quote
Old 05-25-2009, 07:50 AM   #6
Registered User
 
Join Date: Jul 2007
Location: Texarkana, Texas
Posts: 959
Quote:
Originally Posted by rob76turbo
I think that ultimately a set of coilovers is in the future, but want to find the best bang for the buck until that time.
Thanks for the background info. I would focus then on the sway bars. Again, I recommend the GT3 front and Tarett rear. If you check out the Spec Boxster racers and what they use that seems to be their favorite setup. The H&R adjustable bars are another option.

You might want to check out www.boxsterspec.com Now these guys are limited by class rules and stuff like that, but the setups they run for Spec Boxster would be nearly perfect for track days too. Here's their forum:

http://www.boxsterspec.com/boxster-garage-f1.html

Kirk
__________________
2000 Boxster S - Gemballa body kit, GT3 front bumper, JRZ coilovers, lower stress bars
2003 911 Carrera 4S - TechArt body kit, TechArt coilovers, HRE wheels
1986 911 Carrera Targa - 3.2L, Euro pistons, 964 cams, steel slant nose widebody
1975 911S Targa - undergoing a full restoration and engine rebuild
Also In The Garage - '66 912, '69 912, '72 914 Chalon wide body, '73 914
Kirk is offline   Reply With Quote
Old 05-25-2009, 11:14 AM   #7
Registered User
 
Join Date: Oct 2007
Location: Canada
Posts: 94
Since you are running R comps I would suggest that you start off with rear toe links and split front A arms.

This will let you set the car up properly for the tires, and I have found that the toe links make a huge difference on track when you are on sticky tires since they remove the "passive" steering that is built into the cars letting you push with more confidence in the corners.

After that if you go lowering springs / coilovers / etc etc you will still have the basic foundation to adjust the alignment where it will work best for you on track.

You don't really need to do that much with these cars for DE events... with a good alignment they are very neutral and fun to drive and still comfortable on the street.

Marc

__________________
__________________________________________________
Marc
2001 Boxster S

Mostly stock... except for all the things that are changed.
www.dexterautosport.com


http://www.pbase.com/image/89146172.jpg
mdex is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 07:16 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page