GT2 Brake ducts
05-23-2016, 01:28 AM
#1
Rennlist Member
Thread Starter
GT2 Brake ducts
Here's a quick comparison of the side difference in the larger ducts, figured I might as well put them on while car was in the air today. Direct fit, previous owner had already added some zip tie holes too, as these look ready to snag on more as they hang a little lower.
05-23-2016, 07:27 AM
#3
I assume you're aware that there are differences in the disc backing plates between the GT2 and regular Turbo cars? Adding a larger collector won't help much if there's still a restriction at the backing plate blocking the additional air flow. Did you do your backing plates too?
05-23-2016, 03:47 PM
#4
You are missing the lower part of the scoop on the GT2 ducts Mark, the part that forms the 90º angle at the bottom of the scoop as in the picture below. Looks like the prior owner cut them off as they were probably scraped up pretty bad. These help channel the air to the brake rotor. More cooling can be had by channeling the radiator air to the brakes via the upper air guides...
[url=https://flic.kr/p/n2CLuD]
r
[url=https://flic.kr/p/n2CLuD]
r
05-23-2016, 04:10 PM
#5
Rennlist Member
Thread Starter
Thanks guys^
I appreciate the help as I haven't read up on these yet, just picked up the ducts from another RL'er over the winter, the bottom flat portion IS gone.
Really do get what you pay fo...
Still a slight upgrade to help with the bigger brakes and RS29's I put on last week. I'll have to look at John's pic a little closer too, always appreciate the Beta guy helping save me time and $, thanks!
The backing plate PN's are on another post here or 6sp I believe, will look at the stockers again as my Rotors are 350 vs 330 now too.
I appreciate the help as I haven't read up on these yet, just picked up the ducts from another RL'er over the winter, the bottom flat portion IS gone.
Really do get what you pay fo...
Still a slight upgrade to help with the bigger brakes and RS29's I put on last week. I'll have to look at John's pic a little closer too, always appreciate the Beta guy helping save me time and $, thanks!
The backing plate PN's are on another post here or 6sp I believe, will look at the stockers again as my Rotors are 350 vs 330 now too.
10-03-2016, 03:08 PM
#6
Rennlist Member
Thread Starter
I assume you're aware that there are differences in the disc backing plates between the GT2 and regular Turbo cars? Adding a larger collector won't help much if there's still a restriction at the backing plate blocking the additional air flow. Did you do your backing plates too?
Any help in mods you've done to this area is appreciated!
10-03-2016, 03:29 PM
#7
As far as backing plates go, in the front you will need the 996GT2/3 backing plates that will bolt up to the 6GT3 upright you are installing. You do not need to modify them, just bolt on and go. These are the part numbers: 996.351.801.30 and 996.351.802.30
In the rear, you will want to install the 6GT2 backing plates part numbers 996.352.801.30 and 996.352.802.30. They are actually the same part as the TT backing plates but have been trimmed substantially by Porsche. When using the 997.2 rear ducts, you will need to open up the backing plates further to get air to the rotors. It's easy to do with a dremel.
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10-03-2016, 06:42 PM
#8
Rennlist Member
Thread Starter
Mark,
As far as backing plates go, in the front you will need the 996GT2/3 backing plates that will bolt up to the 6GT3 upright you are installing. You do not need to modify them, just bolt on and go. These are the part numbers: 996.351.801.30 and 996.351.802.30
In the rear, you will want to install the 6GT2 backing plates part numbers 996.352.801.30 and 996.352.802.30. They are actually the same part as the TT backing plates but have been trimmed substantially by Porsche. When using the 997.2 rear ducts, you will need to open up the backing plates further to get air to the rotors. It's easy to do with a dremel.
As far as backing plates go, in the front you will need the 996GT2/3 backing plates that will bolt up to the 6GT3 upright you are installing. You do not need to modify them, just bolt on and go. These are the part numbers: 996.351.801.30 and 996.351.802.30
In the rear, you will want to install the 6GT2 backing plates part numbers 996.352.801.30 and 996.352.802.30. They are actually the same part as the TT backing plates but have been trimmed substantially by Porsche. When using the 997.2 rear ducts, you will need to open up the backing plates further to get air to the rotors. It's easy to do with a dremel.
Trying to get some work in between P stuff, or maybe the other way around today.
10-05-2016, 10:27 AM
#9
Mark,
As far as backing plates go, in the front you will need the 996GT2/3 backing plates that will bolt up to the 6GT3 upright you are installing. You do not need to modify them, just bolt on and go. These are the part numbers: 996.351.801.30 and 996.351.802.30
In the rear, you will want to install the 6GT2 backing plates part numbers 996.352.801.30 and 996.352.802.30. They are actually the same part as the TT backing plates but have been trimmed substantially by Porsche. When using the 997.2 rear ducts, you will need to open up the backing plates further to get air to the rotors. It's easy to do with a dremel.
As far as backing plates go, in the front you will need the 996GT2/3 backing plates that will bolt up to the 6GT3 upright you are installing. You do not need to modify them, just bolt on and go. These are the part numbers: 996.351.801.30 and 996.351.802.30
In the rear, you will want to install the 6GT2 backing plates part numbers 996.352.801.30 and 996.352.802.30. They are actually the same part as the TT backing plates but have been trimmed substantially by Porsche. When using the 997.2 rear ducts, you will need to open up the backing plates further to get air to the rotors. It's easy to do with a dremel.
10-05-2016, 05:16 PM
#10
10-07-2016, 12:46 AM
#12
Rennlist Member
Thread Starter
I'm leaving the stock rear backing plates and will look at where they need to be opened up/trimmed once I have the rear cover with ducts up on the car.
I picked up one off a 997 gt3.
I picked up one off a 997 gt3.
10-07-2016, 02:04 AM
#13
Can anyone post pics of the GT2 backplates to use as a guide for where to trim the stock TT ones?
10-07-2016, 11:13 AM
#14
[url=https://flic.kr/p/oMGZYX]
[url=https://flic.kr/p/p4vRKB]
[url=https://flic.kr/p/p5c3WM]
10-07-2016, 11:18 AM
#15
dirty old pic...hope it helps