Notices
991 GT3, GT3RS, GT2RS and 911R 2012-2019
Sponsored by:
Sponsored by:

White 991.2 GT3 Project

Thread Tools
 
Search this Thread
 
Old 01-24-2018, 10:37 PM
  #91  
awew911
Rennlist Member
Thread Starter
 
awew911's Avatar
 
Join Date: Apr 2011
Location: Florida
Posts: 1,399
Received 290 Likes on 135 Posts
Default

Originally Posted by Swerveskip
did you feel the need to install the seat angle adjusters for use with the LWB seats and the harness?
Didn't have them for my 991.1 gt3, but they look pretty interesting and might be something to explore.
Old 01-25-2018, 02:12 PM
  #92  
Swerveskip
Intermediate
 
Swerveskip's Avatar
 
Join Date: Sep 2012
Posts: 40
Received 14 Likes on 7 Posts
Default

I am having to decide myself on this while the cantrell bar is going in and harness getting installed. i like the stock lwb position for street use, but i can see how with helmet and hans it might make it tight against the headrest. Did you find that to be the case in the .1? Was it uncomfortable or did you notice that your angle of view was affected?
Old 01-25-2018, 02:26 PM
  #93  
awew911
Rennlist Member
Thread Starter
 
awew911's Avatar
 
Join Date: Apr 2011
Location: Florida
Posts: 1,399
Received 290 Likes on 135 Posts
Default

Originally Posted by Swerveskip
I am having to decide myself on this while the cantrell bar is going in and harness getting installed. i like the stock lwb position for street use, but i can see how with helmet and hans it might make it tight against the headrest. Did you find that to be the case in the .1? Was it uncomfortable or did you notice that your angle of view was affected?
It's been a year or so since I used the .1 at the tracks. Didn't recognize it as being an issue, however, doesn't mean a little more tilt wouldn't help. I'll have more info after this weekend at Sebring in terms of how the stock setup works.
Old 02-05-2018, 03:55 PM
  #94  
awew911
Rennlist Member
Thread Starter
 
awew911's Avatar
 
Join Date: Apr 2011
Location: Florida
Posts: 1,399
Received 290 Likes on 135 Posts
Default

Purchased the Spiegler GT3 Stainless hose kit. PN: 13.02.06901

Comes with 6 lines - 4 for the front, 2 for the rear.

For the fronts, they replace the rigid line from the caliper to the bracket with a flex line. Then they replace the hose from the bracket to the body. Looks good. No clearance issues.




The rears were a little different.

The rear caliper has a short rigid brake line from the caliper to the bracket, and then a flex hose to the body. The kit replaces both of these with a single brake line that has a male on one end and female on the other. The lines have the option to rotate the hose as well as place the male end at the correct angle in order to minimize any clearance issues.

I found two problems with this:
1) After 4 or 5 attempts at getting the correct angle, I couldn't get consistently good clearance from the body or the rear wheel steering mechanism. While the brake line does clear them by 5 or 8 mm, it's a little close for comfort.
2) By having the brake line connected at the body and attach directly to the caliper, it means that during travel, all the strain will manifest itself at the caliper connection point. This, long term, isn't good.




So, I decided that what I want to do is retain the short rigid brake line from the caliper to the bracket, and then place a similar to OEM length (1 cm longer) flex brake line from the bracket to the body. This will remove strain from the caliper connection and provide enough clearance from the body and the rear steering mechanism.

I contacted Spiegler this morning and was EXTREMELY impress by their professionalism and willingness to help. They are sending me two custom brake lines (300mm with their 712 fittings on both sides) today and I should have them by Wed or Thursday.

I'll update here with the results and more details pics when I get them installed later this week.
Old 02-05-2018, 04:41 PM
  #95  
awew911
Rennlist Member
Thread Starter
 
awew911's Avatar
 
Join Date: Apr 2011
Location: Florida
Posts: 1,399
Received 290 Likes on 135 Posts
Default

I installed an AIM SmartyCamHD in the car.



Used a low profile OBD2 cable to go from the underdash connector to the ECU Bridge.

OBD2 Connector
Amazon Amazon
AIM ECU Bridge https://www.pegasusautoracing.com/pr...asp?RecID=8115
GPS08: https://www.pegasusautoracing.com/pr...Product=MC-257
CAN Data Hub: https://www.pegasusautoracing.com/pr...asp?RecID=7140
SmartyCAM CAN/Microphone Cable: https://www.pegasusautoracing.com/pr...sp?RecID=24951

Configuration wasn't too bad at all.

Here's the end result:

Any questions, let me know.
Old 02-05-2018, 04:58 PM
  #96  
Mech33
Nordschleife Master
 
Mech33's Avatar
 
Join Date: Oct 2014
Posts: 5,344
Received 606 Likes on 371 Posts
Default

Thanks for sharing. Any problems getting the air bled out of the system after removing and replacing the OEM lines? Did a lot of fluid come out during the swap? My fear is air bubbles traveling back up to the ABS system if it’s not bled fast enough.

Originally Posted by awew911
Purchased the Spiegler GT3 Stainless hose kit. PN: 13.02.06901

Comes with 6 lines - 4 for the front, 2 for the rear.

For the fronts, they replace the rigid line from the caliper to the bracket with a flex line. Then they replace the hose from the bracket to the body. Looks good. No clearance issues.




The rears were a little different.

The rear caliper has a short rigid brake line from the caliper to the bracket, and then a flex hose to the body. The kit replaces both of these with a single brake line that has a male on one end and female on the other. The lines have the option to rotate the hose as well as place the male end at the correct angle in order to minimize any clearance issues.

I found two problems with this:
1) After 4 or 5 attempts at getting the correct angle, I couldn't get consistently good clearance from the body or the rear wheel steering mechanism. While the brake line does clear them by 5 or 8 mm, it's a little close for comfort.
2) By having the brake line connected at the body and attach directly to the caliper, it means that during travel, all the strain will manifest itself at the caliper connection point. This, long term, isn't good.




So, I decided that what I want to do is retain the short rigid brake line from the caliper to the bracket, and then place a similar to OEM length (1 cm longer) flex brake line from the bracket to the body. This will remove strain from the caliper connection and provide enough clearance from the body and the rear steering mechanism.

I contacted Spiegler this morning and was EXTREMELY impress by their professionalism and willingness to help. They are sending me two custom brake lines (300mm with their 712 fittings on both sides) today and I should have them by Wed or Thursday.

I'll update here with the results and more details pics when I get them installed later this week.
Old 02-05-2018, 05:08 PM
  #97  
awew911
Rennlist Member
Thread Starter
 
awew911's Avatar
 
Join Date: Apr 2011
Location: Florida
Posts: 1,399
Received 290 Likes on 135 Posts
Default

Originally Posted by Mech33
Thanks for sharing. Any problems getting the air bled out of the system after removing and replacing the OEM lines? Did a lot of fluid come out during the swap? My fear is air bubbles traveling back up to the ABS system if it’s not bled fast enough.
This is not an issue in this case. With the open ends being lower than the reservoir, there was a constant drip. I had to top off the reservoir a few times during the process. This drip was reduced by using the supplied rubber plugs to slow the drip. I can't really quantify the amount of air that came through the system, but a regular bleeding protocol was followed using a power bleeder at 10psi. I suppose you can apply the power bleeder at a 1-2 PSI and see what happens. I did observe air bubbles come through during the initial portion the bleeding process and the brake pedal feels quite firm.

This is a great bottle, btw:
Amazon Amazon

Be sure to grab an 11 mm and a 10mm flare nut wrench.
Old 02-06-2018, 03:48 AM
  #98  
Wind911
Rennlist Member
 
Wind911's Avatar
 
Join Date: Nov 2013
Location: Houston
Posts: 640
Received 189 Likes on 126 Posts
Default

Originally Posted by awew911
This is not an issue in this case. With the open ends being lower than the reservoir, there was a constant drip. I had to top off the reservoir a few times during the process. This drip was reduced by using the supplied rubber plugs to slow the drip. I can't really quantify the amount of air that came through the system, but a regular bleeding protocol was followed using a power bleeder at 10psi. I suppose you can apply the power bleeder at a 1-2 PSI and see what happens. I did observe air bubbles come through during the initial portion the bleeding process and the brake pedal feels quite firm.

This is a great bottle, btw:
https://www.amazon.com/Genesis-Technologies-GEN-GA3076-Magnet-Bleeder/dp/B000W7K588/ref=sr_1_8?ie=UTF8&qid=1517864617

Be sure to grab an 11 mm and a 10mm flare nut wrench.
A trick I learned for reducing brake fluid dripping to a minimal when disconnecting brae lines is to use something like a mono pod to depress and hold the brake pedal down 1~2" before you disconnect the lines. You'll find the brake fluid barely comes out a drop or two when you disconnect the line.
Old 02-06-2018, 04:00 AM
  #99  
Mech33
Nordschleife Master
 
Mech33's Avatar
 
Join Date: Oct 2014
Posts: 5,344
Received 606 Likes on 371 Posts
Default

Originally Posted by Wind911
A trick I learned for reducing brake fluid dripping to a minimal when disconnecting brae lines is to use something like a mono pod to depress and hold the brake pedal down 1~2" before you disconnect the lines. You'll find the brake fluid barely comes out a drop or two when you disconnect the line.
Doesn’t that actually increase the line pressure?
Old 02-06-2018, 10:45 AM
  #100  
Wind911
Rennlist Member
 
Wind911's Avatar
 
Join Date: Nov 2013
Location: Houston
Posts: 640
Received 189 Likes on 126 Posts
Default

Originally Posted by Mech33


Doesn’t that actually increase the line pressure?
i thought so too but it works.
Old 02-06-2018, 10:47 AM
  #101  
awew911
Rennlist Member
Thread Starter
 
awew911's Avatar
 
Join Date: Apr 2011
Location: Florida
Posts: 1,399
Received 290 Likes on 135 Posts
Default

Originally Posted by Wind911


i thought so too but it works.
Interesting... I'll give that a try when I replace the rear lines on Thursday eve. Thanks for the info!
Old 02-12-2018, 08:57 PM
  #102  
awew911
Rennlist Member
Thread Starter
 
awew911's Avatar
 
Join Date: Apr 2011
Location: Florida
Posts: 1,399
Received 290 Likes on 135 Posts
Default

Installed the 330mm custom lines. Much better. Lets the bracket be used since it is still connected to caliper and acts as a strain relief. Much better. Less interference.






Old 05-25-2018, 07:45 AM
  #103  
awew911
Rennlist Member
Thread Starter
 
awew911's Avatar
 
Join Date: Apr 2011
Location: Florida
Posts: 1,399
Received 290 Likes on 135 Posts
Default

FYI - I reverted my brake lines back to original Porsche.

Figure they know what they are doing and there is no benefit that the Spiegler lines can provide me in my quest for the DE Trophy.

Brake lines are probably one of the most important safety components and not worth deviating from for my application.
Old 05-25-2018, 11:21 AM
  #104  
Mech33
Nordschleife Master
 
Mech33's Avatar
 
Join Date: Oct 2014
Posts: 5,344
Received 606 Likes on 371 Posts
Default

Originally Posted by awew911
FYI - I reverted my brake lines back to original Porsche.

Figure they know what they are doing and there is no benefit that the Spiegler lines can provide me in my quest for the DE Trophy.

Brake lines are probably one of the most important safety components and not worth deviating from for my application.
Did something happen to make you go through the effort to change back?
Old 01-05-2020, 11:42 AM
  #105  
tjg81296
Rennlist Member
 
tjg81296's Avatar
 
Join Date: Mar 2017
Location: New Jersey
Posts: 447
Received 132 Likes on 74 Posts
Default

awew911,

Awesome write-up for a beautiful car. How have you found the Girodisc's performance?

Thanks,
Tom Grady


Quick Reply: White 991.2 GT3 Project



All times are GMT -3. The time now is 03:30 AM.