06-02-2022, 12:51 PM
|
#1
|
Registered User
Join Date: Feb 2017
Location: Stockholm
Posts: 375
|
Pedro Bar / Stabilizer bar etc
So, this thing has many names... I´m referring to the bar some have used to connect the two rear underframes.
I´m about to make my own right now, but when I start to think of it, the main side forces will clearly go through the LCA and into the front leg of the underframe, this leg is already connected to the other side via a oem bar. The Pedro bar etc are connecting the two rear legs of the underframe, those keep track of the toe-link/track rod. No major forces should go through this one I believe, and if so the effect would be a bit more toe out, not primarily reducing camber.
I guess many things can be percieved as great when they are new and all the hype, but now a few years after what do you guys think of this one. Is it really a percievable improvement, or just adding more weight?
|
|
|
06-02-2022, 02:45 PM
|
#2
|
Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,538
|
Do they work? Yes. What would an optimum unit look like, this with Heim joints are both ends so it can be preloaded, and this one includes chassis tie down loops as well:
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
|
|
|
06-03-2022, 01:04 AM
|
#3
|
Registered User
Join Date: Feb 2017
Location: Stockholm
Posts: 375
|
@JFP, that sure looks line a great solution.
So, du you agree that it's likely the toe rather than camber that is more stable with this bar? Would love to hear more about the percived effect, I know that there is a lot written already, but what I'm after is the present view, a bit after the "hype" or how I should put it.
|
|
|
06-03-2022, 05:42 AM
|
#4
|
Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,538
|
Depending upon the vehicle, compound of tire, and the load on the chassis, both toe and camber can be impacted to differing degrees and at various times.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
|
|
|
06-03-2022, 06:09 AM
|
#5
|
Registered User
Join Date: Jul 2019
Location: GTA
Posts: 283
|
Would this be of any practical use in a street and mild HPDE use case? Or would this be geared more towards dedicated track vehicles?
__________________
2001 Porsche Boxster S
|
|
|
06-03-2022, 06:44 AM
|
#6
|
Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,538
|
It is a definite plus on track cars where it is allowed by the rules, but its presence can also be felt on street cars. You are stopping the rear uprights from moving around as the chassis flexes.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
|
|
|
06-03-2022, 08:48 AM
|
#7
|
550 Anniversary
Join Date: Jul 2012
Location: Surrey, UK
Posts: 747
|
Had one, made elsewhere, for several years. Perceptible difference at the time.
|
|
|
06-03-2022, 05:34 PM
|
#8
|
Registered User
Join Date: Oct 2020
Location: KY
Posts: 1,216
|
Yes to all the above.
Instead of dropping $100, I bought a 3/4" square x24" long bar of extruded aluminum, knocked out the OEM bolts, and drilled the bar to fit. I positioned mine above the diagonal braces so that it's completely out of sight.
If you only drive in a straight line you will never feel a difference. If you push it around corners though (even spirited daily drives) the difference is definitely there. It's hard to describe except to say that the rear end "feels more planted" and with less flex. For $30 it was a great mod.
Sent from my SM-G970U1 using Tapatalk
__________________
2000 Box Base, Renegade Stage 1 performance mods complete, more to come
When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...
|
|
|
06-04-2022, 04:48 AM
|
#9
|
Registered User
Join Date: Sep 2018
Location: Illinois
Posts: 240
|
Rod End Supply has everything you need to make this yourself with no fabrication needed. Just pointing out a resource I've used. I have no relationship with them.
|
|
|
06-08-2022, 04:56 AM
|
#10
|
Registered User
Join Date: Oct 2012
Location: Cincinnati, Ohio
Posts: 373
|
I use the Pedro bar. Yes it makes a difference especially under braking
|
|
|
06-09-2022, 04:38 AM
|
#11
|
Registered User
Join Date: Sep 2006
Location: Omaha
Posts: 2,932
|
I use the Pedro bar on my CSS. Works great and is an easy DIY.
__________________
GPRPCA Chief Driving Instructor
2008 Boxster S Limited Edition #005
2008 Cayman S Sport - Signal Green
1989 928 S4 5 spd - black
|
|
|
06-09-2022, 07:26 AM
|
#12
|
Registered User
Join Date: Aug 2020
Location: Colorado
Posts: 33
|
A couple of questions for people who have put in a stabilizer- would it be better to install while the wheels have contact (e.g. wheel ramps) or totally off the ground (quick jack lift)?
Did you get your car's rear alignment checked afterwards?
Thanks for any help!
|
|
|
06-09-2022, 08:31 AM
|
#13
|
Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,538
|
If you are using the type with adjustable Heim joints and preloading the bar, it should be done with the car fully resting on the tires. If you are using the fixed type, it doesn't matter.
We have not seen the need to realign the cars after putting in the adjustable type.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
|
|
|
06-09-2022, 08:32 AM
|
#14
|
There Is No Substitute.
Join Date: May 2007
Location: West Coast
Posts: 3,253
|
I installed a fixed stabilizer bar with the wheels off the ground, and I would recommend an alignment. If you manage to install the bar and everything stays lined up (aka you are easily able to reinstall the bolts) then you may be able to skip an alignment. When I installed mine I couldn't get one of the bolts back in even though nothing had visible shifted during the install. I had to have the place that did the alignment install that one bolt.
__________________
1999 Ocean Blue Metallic Boxster - blueboxster.com
|
|
|
07-07-2022, 05:40 AM
|
#15
|
Registered User
Join Date: Jun 2018
Location: San Antonio, Texas
Posts: 81
|
I have a Pedro bar I can’t seem to move. Asking 50$ plus shipping. 40$ for local pick up and I’d probably help install if needed.
__________________
-1999 Boxster 3.4L swap/NHP Headers/Fabspeed maxflow/ Coilovers/GT3 arms/adj. rear toe links/Tarret front and rear bar/UIDS/UAOS
-2002 911 Turbo -JRZ RS Pro/GMG swaybars/RSS/Billet k16s/ Markski turbo inlet pipe, tune, 3” exhaust, intercoolers/GT3 seats w/red GT3 belts/CCW classics
|
|
|
07-08-2022, 10:07 AM
|
#16
|
Registered User
Join Date: May 2022
Location: NorCal
Posts: 39
|
Quote:
Originally Posted by ike84
Instead of dropping $100, I bought a 3/4" square x24" long bar of extruded aluminum, knocked out the OEM bolts, and drilled the bar to fit. I positioned mine above the diagonal braces so that it's completely out of sight.
|
Could you share a photo of this? It's hard to visualize exactly what you did, but I am interested in trying it.
|
|
|
07-10-2022, 12:23 PM
|
#17
|
1998 Boxster Silver/Red
Join Date: Sep 2017
Location: 92262
Posts: 3,064
|
Quote:
Originally Posted by Sveach756
I have a Pedro bar I can’t seem to move. Asking 50$ plus shipping. 40$ for local pick up and I’d probably help install if needed.
|
Is that going to fit the 98 Tiptronic? I believe, last time I checked, Pedro didn't have a bar for the tip.
Confirm? Could be interested. Thanks!
__________________
1998 Porsche Boxster
|
|
|
07-12-2022, 07:31 PM
|
#18
|
Registered User
Join Date: Oct 2020
Location: KY
Posts: 1,216
|
Quote:
Originally Posted by casioqv
Could you share a photo of this? It's hard to visualize exactly what you did, but I am interested in trying it.
|
Yes, I'll get a pic of it tomorrow
Sent from my SM-G970U1 using Tapatalk
__________________
2000 Box Base, Renegade Stage 1 performance mods complete, more to come
When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...
|
|
|
07-16-2022, 11:56 AM
|
#19
|
Registered User
Join Date: Feb 2017
Location: Stockholm
Posts: 375
|
So, I can report that I put in a 20x30mm bar, this is a bit too wide and it hits the exhaust just a bit. Just FYI :-)
|
|
|
07-17-2022, 04:31 PM
|
#20
|
Registered User
Join Date: Oct 2020
Location: KY
Posts: 1,216
|
Quote:
Originally Posted by casioqv
Could you share a photo of this? It's hard to visualize exactly what you did, but I am interested in trying it.
|
Here are the pics. Like I said, it's quite concealed. It runs on top of the sheet metal brace, connecting the two rear most bolt holes on the diagonal braces. It tucks under the exhaust on either side (my exhaust is totally custom though so I can't speak to OEM setups) and then bolts drop down from the top and go through the bar, the sheet metal brace, and diagonal brace) and secured via a nut on the bottom side. The oem bolts here just knock out from the bottom-up.  
Sent from my SM-G970U1 using Tapatalk
__________________
2000 Box Base, Renegade Stage 1 performance mods complete, more to come
When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is On
|
|
|
All times are GMT -8. The time now is 06:54 AM.
| |