How to install GPS-based PSE (exhaust) valve controller on a 991 GT3RS - Rennlist - Porsche Discussion Forums

Go Back  Rennlist - Porsche Discussion Forums > Water Cooled Technical Discussion Areas > 991 GT3 GT3RS and 911R
Reload this Page > How to install GPS-based PSE (exhaust) valve controller on a 991 GT3RS
Notices
991 GT3 GT3RS and 911R
Sponsored by: Inside Car Connection

How to install GPS-based PSE (exhaust) valve controller on a 991 GT3RS

Reply

Old 01-14-2018, 12:12 AM
  #1
ejpoulsen
User
Thread Starter
 
Join Date: Dec 2017
Posts: 15
Default How to install GPS-based PSE (exhaust) valve controller on a 991 GT3RS

I am taking my 991 GT3RS to Laguna Seca soon and I did not want to be black flagged or install an ungainly looking exhaust mod. So after reading these threads

https://rennlist.com/forums/991-gt3-...nd-checks.html

https://rennlist.com/forums/991-gt3-...ontroller.html

(credit to Mech33 for his innovation), I contacted Amalgamated Tom and he built his GPS-based PSE controller called Track Nanny. Tom can explain the specific on what it does and how it works. This is the first one Tom made for a 991 GT3RS, so we carefully reviewed the parts manual to confirm it uses the same solenoid as the standard 991 GT3 and then confirmed that the wiring appears the same. Still, the process is a little different, so I have a few photos below walking through the process for others. The unit works, but I have yet to confirm if I will pass sound check at Laguna Seca.


Last edited by ejpoulsen; 01-15-2018 at 12:20 PM.
ejpoulsen is offline  
Reply With Quote
Old 01-14-2018, 12:17 AM
  #2
ejpoulsen
User
Thread Starter
 
Join Date: Dec 2017
Posts: 15
Default

Step 1--remove the fans, fan shroud, and right cover. These pop off. The left cover has a 10mm bolt to undo and wiggle off after removing the add water and add oil caps.

This is a photo (took it after so you can see the wire already there).


Last edited by ejpoulsen; 01-14-2018 at 01:22 AM.
ejpoulsen is offline  
Reply With Quote
Old 01-14-2018, 12:21 AM
  #3
ejpoulsen
User
Thread Starter
 
Join Date: Dec 2017
Posts: 15
Default

Step 2--remove the carbon fiber cover. You really need the extra access. All the tore bolts are marked in red, and note that two hide under rubber pads and one hides under the edge of the lot cover by the water fill.



ejpoulsen is offline  
Reply With Quote
Old 01-14-2018, 01:37 AM
  #4
ejpoulsen
User
Thread Starter
 
Join Date: Dec 2017
Posts: 15
Default

Step 3--At this point you have better access as shown here.




On the right side of the engine bay, behind and below the ECU, identify the exhaust solenoid here.




The solenoid is gray with the red arrow. The connector you will need to remove is show with the green arrow.

ejpoulsen is offline  
Reply With Quote
Old 01-14-2018, 01:47 AM
  #5
ejpoulsen
User
Thread Starter
 
Join Date: Dec 2017
Posts: 15
Default

Step 4--Remove the 10mm nuts on either side of the ECU bracket so that you can slide the bracket to the right an inch or so--you need the space unless your hands are very small. The red arrow shows the left nut removed and the bracket slid off and to the right. Note that the left nut cannot be visualized but can be felt and removed easily with an extension.




Now you can unplug the connector from the solenoid. Confirm the wire look the same (991 GT3 and 991 GT3RS should look like this, while GT4 and 997s are different, I believe)--black with yellow stripe and brownish with black stripe.

ejpoulsen is offline  
Reply With Quote
Old 01-14-2018, 01:51 AM
  #6
ejpoulsen
User
Thread Starter
 
Join Date: Dec 2017
Posts: 15
Default

Step 5--plug in the wiring harness; one side goes to the solenoid and the other receives the connector you just unplugged. Difficult to photograph, but here it is plugged in.

ejpoulsen is offline  
Reply With Quote
Old 01-14-2018, 01:59 AM
  #7
ejpoulsen
User
Thread Starter
 
Join Date: Dec 2017
Posts: 15
Default

Step 6--Pull out the rubber grommet/sleeve here as the place to feed the wiring harness into the interior.




Remove the panel above the rear shelf inside the car. You will grasp the edge firmly and pull directly out as the clips disengage. Note that I have the full carbon buckets, so rear access is a challenge. By putting one seat all the way forward and the other all the way back, taking off my shoes...I was able to climb to the back. If I did yoga and was not 6'1" tall, it would have been easier. You can then pull the wire through easily. The wiring harness is visible with the red sheath. You can then feed it down through the vent in the panel before pushing it back into place.



Replace the rubber; you may notch it if desire for a better fit.

ejpoulsen is offline  
Reply With Quote
Old 01-14-2018, 02:09 AM
  #8
ejpoulsen
User
Thread Starter
 
Join Date: Dec 2017
Posts: 15
Default

Step 7--Put the ECU back in place, Replace the engine covers, fan shroud, etc.

Connect up the controller; Amalgamated Tom provides instructions. Although the unit can work without the GPS antenna, I wanted to use it to make sure I had the best fix. I zip tied it along with the harness to the child seat latch then ran it forward. This antenna location gives a good "view" of the sky. Power is via the 12V in the passenger footwell, and I store the unit there. I did not want to alter my interior by mounting it. I may tidy up the wiring more later, but it is not obtrusive.



ejpoulsen is offline  
Reply With Quote
Old 01-14-2018, 02:14 AM
  #9
ejpoulsen
User
Thread Starter
 
Join Date: Dec 2017
Posts: 15
Default

See you at the track!

Instagram: ejpoulsen

ejpoulsen is offline  
Reply With Quote
 

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Amalgamated Tom
991 GT3 GT3RS and 911R
7
01-15-2018 12:21 PM
Mech33
991 GT3 GT3RS and 911R
193
01-14-2018 02:25 AM
sbarbour
Parts Marketplace
0
11-05-2017 12:26 AM
unclejosh
Parts Marketplace
1
06-04-2017 12:04 PM
doborder
GT4
39
10-07-2016 05:57 PM

Thread Tools
Search this Thread
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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -3. The time now is 05:27 AM.


Copyright ę 1998 - 2017 Rennlist.com 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: