Installed a 997 GT3 Master Cylinder in my 996 C2 - Page 2 - Rennlist - Porsche Discussion Forums

Go Back  Rennlist - Porsche Discussion Forums > Water Cooled Technical Discussion Areas > 996 Forum
Reload this Page >

Installed a 997 GT3 Master Cylinder in my 996 C2

Notices
996 Forum
Sponsored by:
Sponsored by: LN Engineering

Installed a 997 GT3 Master Cylinder in my 996 C2

 
Old 03-24-2018, 07:29 PM
  #16  
Dharn55
Addict
Rennlist Member
 
Dharn55's Avatar
 
Join Date: Sep 2005
Location: Wilmette, IL
Posts: 2,180
Default

AutohausAZ AZ has these master cylinders on sale for 183.47, normally $191, good deal!
Dharn55 is offline  
Old 09-17-2018, 02:40 PM
  #17  
GVA-SFO
Addict
Rennlist Member
 
Join Date: Jul 2009
Posts: 1,306
Default

Thank you so much Nickshu for this Five Stars Topic.
And thanks a lot to Quadcammer that posted in my topic, the reference on yours.

I come from the 986 “chapter”, and have the exact same problem, i.e.: hate the “mushy brake pedal” feel of the OEM car.
(The only positive things of it, ..is the feeling that you have to bleed every track days !)

Note:
I have Brembo big brake kit on my Boxster (large floating rotors and 6 pistons calipers) and just want a FIRM (normal sport car) brake feel. I also got the feeling that the large calipers even made the feeling a little bit worse than the original !
By the way, ..after 30 years non stop of multi 911 (including 11 years of 996), you could not believe how great I feel about a Boxster. Nothing beat having the engine at the right position !
(..or: why I’m on the “986 Chapter” !)
After going for an install process of a TRW PMN166, ..I found the mismatch on outlet tubes !
(or, good for back to OEM and ..another full bleeding session !)

Thanks again, I think I may also go on adapter solution too.
(Or trying to get another line new or from a dismantler, and cut the bubble, remove the 10mm nut, to replace it by a “small” tube 12mm nut (made for 4.6mm tube)
(the “common” 12mm nuts seems to be designed for 5.8mm tubes) and rebuild the bubble.
This later solution would have the advantage to suppress the need of an adapter.

By the way, about this upgrade, I also observed during this tentative that the mounting of the GT3 M.C. on the booster is different at the level of the sealing between the booster and the MC : on the OEM MC, at least on the 986, the sealing is done the “axial way” with an O-Ring, while on the “GT3” one, the sealing is done in the “vertical plate”, facing the booster.
It seems to me that the sealing of the “GT3” model is much more logical !
Did you also found this difference on the 996 ? (or is this “typical” to the 986 ?)

Sorry for off topic, but for curiosity: a photo of my front brakes (sure, also PSS9) :


Last edited by GVA-SFO; 09-17-2018 at 04:34 PM.
GVA-SFO is offline  
Old 09-17-2018, 06:56 PM
  #18  
GVA-SFO
Addict
Rennlist Member
 
Join Date: Jul 2009
Posts: 1,306
Default

By the way, about nice and easy mods, a simple one to try to help to keep brakes as cold as possible is OEM GT2 air ducts.
Available as Porsche parts (number on the photo) cost about 30 bucks and real easy to install (replace much smaller ones) !

GVA-SFO is offline  
Old 09-17-2018, 08:44 PM
  #19  
GVA-SFO
Addict
Rennlist Member
 
Join Date: Jul 2009
Posts: 1,306
Default

..back on topic :

Btw, two comments :

a) Strange, on the list of cars, ..it do not says GT3 for the PMN166 !!!!



b) It looks like “Brake Hoses Unlimited” on eBay has “THE” adapter :

GVA-SFO is offline  
Old 09-17-2018, 11:33 PM
  #20  
heligear
User
 
heligear's Avatar
 
Join Date: Jul 2007
Location: Abbotsford B.C. Canada
Posts: 127
Default

Originally Posted by Nickshu View Post
You bet guys! This is a pretty easy mod. Aside from getting the adapter setup it only took me about 1 hour to install and another hour to bleed. And on top of that it's a pretty inexpensive mod. Again I am surprised that there has not been much discussion about this on the 996 forum, the Cayman guys have been all over this upgrade for awhile now.

We had a few inches of snow today...I usually don't drive my car in snow, but couldn't resist....so I took it around the neighborhood, mostly sideways, and gave the PSM and ABS a good workout. No issues noted with the upgraded M/C and any of the PSM/ABS electronics. Just a way better pedal feel and much less travel.

I may have to adjust my adjustable Rennline gas pedal up a bit for heel and toe now. Aaaah champagne problems.
Just curious, did you bench bleed the 997 master before installing in your car?
heligear is offline  
Old 09-18-2018, 12:45 AM
  #21  
Nickshu
Addict
Rennlist Member
Thread Starter
 
Nickshu's Avatar
 
Join Date: Mar 2017
Location: Northern Colorado, USA
Posts: 1,125
Default

Originally Posted by heligear View Post
Just curious, did you bench bleed the 997 master before installing in your car?
No I didn't. Just pressure bled with my Motive bleeder. No issues. Have done it that way three times now on two different cars with no problems.
Nickshu is offline  
Old 09-18-2018, 12:47 AM
  #22  
Nickshu
Addict
Rennlist Member
Thread Starter
 
Nickshu's Avatar
 
Join Date: Mar 2017
Location: Northern Colorado, USA
Posts: 1,125
Default

Originally Posted by GVA-SFO View Post

b) It looks like “Brake Hoses Unlimited” on eBay has “THE” adapter :

Yes that looks like the perfect one. I searched all over and couldn't find one like that. Cool!
Nickshu is offline  
Old 09-18-2018, 03:41 AM
  #23  
Projekt EPiK
Addict
Rennlist Member
 
Join Date: Dec 2014
Location: MBSC
Posts: 116
Default

subbed.. this looks like a great option in my 99 C2..no PSM or anything, so I'm hoping it's an m12 front and rear port., I'll have to look at it after work... but with that adapter, either way is a breeze. 997 GT3 BMC is going on the list. Thanks for the how-to
Projekt EPiK is offline  
Old 09-18-2018, 10:29 AM
  #24  
dporto
Super User
 
dporto's Avatar
 
Join Date: Oct 2014
Location: L.I. NY
Posts: 3,488
Default

Originally Posted by GVA-SFO View Post
..back on topic :

Btw, two comments :

a) Strange, on the list of cars, ..it do not says GT3 for the PMN166 !!!!



b) It looks like “Brake Hoses Unlimited” on eBay has “THE” adapter :

A link would be nice - can't seem to find brake hoses unlimited on Ebay... Thx
dporto is offline  
Old 09-18-2018, 10:36 AM
  #25  
TexSquirrel
Addict
Rennlist Member
 
TexSquirrel's Avatar
 
Join Date: Aug 2016
Location: Richmond, T E X A S !
Posts: 1,404
Default

Originally Posted by dporto View Post
A link would be nice - can't seem to find brake hoses unlimited on Ebay... Thx
Is this it?
http://www.ebaystores.com/BRAKE-HOSES-UNLIMITED
TexSquirrel is offline  
Old 09-18-2018, 10:38 AM
  #26  
uniquenamehere
Addict
Rennlist Member
 
uniquenamehere's Avatar
 
Join Date: May 2011
Location: Ontario, Canada
Posts: 829
Default

uniquenamehere is online now  
Old 09-18-2018, 10:39 AM
  #27  
TexSquirrel
Addict
Rennlist Member
 
TexSquirrel's Avatar
 
Join Date: Aug 2016
Location: Richmond, T E X A S !
Posts: 1,404
Default

This looks like the adapter, right?
https://www.ebay.com/itm/Brake-Line-...item4d353a6340
TexSquirrel is offline  
Old 09-18-2018, 12:44 PM
  #28  
Dharn55
Addict
Rennlist Member
 
Dharn55's Avatar
 
Join Date: Sep 2005
Location: Wilmette, IL
Posts: 2,180
Default

Just found this master cylinder on FVD Brombacher for $175.00 plus $15.00 shipping. Best price I have seen.
Dharn55 is offline  
Old 09-18-2018, 02:56 PM
  #29  
GVA-SFO
Addict
Rennlist Member
 
Join Date: Jul 2009
Posts: 1,306
Default

Originally Posted by dporto View Post
A link would be nice - can't seem to find brake hoses unlimited on Ebay... Thx

Sorry, you are right :
The easiest (on ebay) : eBay item number: 331605500736

The description line (title) is "Brake Line Thread Adapter, Male M12 x 1 Bubble, Female M10 x 1 Bubble"
and the vendor id is goodbrakes (14647 ) (100% Positive feedback)
GVA-SFO is offline  
Old 09-18-2018, 03:01 PM
  #30  
GVA-SFO
Addict
Rennlist Member
 
Join Date: Jul 2009
Posts: 1,306
Default

I cannot wait ..to have REAL brake feeling on my 986 !
Thanks a lot for all the good info provided here.
GVA-SFO is offline  

Thread Tools
Search this Thread
Quick Reply: Installed a 997 GT3 Master Cylinder in my 996 C2


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: