New Turbo GXP...
So I finally got a day to play with my GXP, so I installed the CTS-V brakes I got for it. Also installed some stainless lines and flushed the fluid... fun stuff.
Quick and nasty - they feel great, pedal response is very quick and definitely
stops hard!
For anyone else wanting to upgrade - don't bother with the washers from McMaster-Carr, they're too thick. The 1/2" fender washers from Home Depot (in orange bag) work perfect to center calipers on the rotors. \
I ordered a set of extended stainless lines from ZZperformance, but the ones for the rear don't work right on the rear GXP calipers. I had a set of Russell W-body stainless lines for my project car and the rear from that kit worked. Also, the ZZPerformance lines needed a double or thick brass washer to center the fluid port on the banjo bolts. Peep da pics
Now if I can get a long weekend to install the LS6 intake and ported TB.
Quick and nasty - they feel great, pedal response is very quick and definitely
stops hard!
For anyone else wanting to upgrade - don't bother with the washers from McMaster-Carr, they're too thick. The 1/2" fender washers from Home Depot (in orange bag) work perfect to center calipers on the rotors. \
I ordered a set of extended stainless lines from ZZperformance, but the ones for the rear don't work right on the rear GXP calipers. I had a set of Russell W-body stainless lines for my project car and the rear from that kit worked. Also, the ZZPerformance lines needed a double or thick brass washer to center the fluid port on the banjo bolts. Peep da pics
Now if I can get a long weekend to install the LS6 intake and ported TB.
Thread Starter
Joined: Feb 2011
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From: S. FL to Philly ??
Those bolts are CTS-V bolts, they are smaller diameter than the W-body bolts so that's why the sleeves are there. I put a couple pics to show dapping the sleeves in first is best. But yes, the bolt with a couple washers threads into the CTS-V calipers.
Thread Starter
Joined: Feb 2011
Posts: 383
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From: S. FL to Philly ??
The washers in the pic are NOT the washers I ended up using. The original thread called for two each of the ones in the pic, but that set or a single had the caliper to close to one side of the rotor. I used two 1/2" washers from Home Depot on each bolt and it center the caliper damn near perfect.
Hope that helps.
Hope that helps.
Thread Starter
Joined: Feb 2011
Posts: 383
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From: S. FL to Philly ??
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TECH Apprentice
Joined: Jul 2007
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What sleeves did you use?
Thread Starter
Joined: Feb 2011
Posts: 383
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From: S. FL to Philly ??
4 x 14MM bushing
McMaster-Carr
Part# 6679K16 Desc: Metric Steel-Backed PTFE-Coated Brnz Bearing for 12 mm Shaft Diameter, 15 mm Length Price: $2.45/each Qty: 4
Grand Prix's have 14mm bolts and CTS-V's use 12mm Bolts
Source info:
https://ls1tech.com/forums/ls4-perfo...brake-kit.html
http://www.grandprixforums.net/showt...+brake+upgrade
I got Slotted/ drilled rotors from Brakemotive.
McMaster-Carr
Part# 6679K16 Desc: Metric Steel-Backed PTFE-Coated Brnz Bearing for 12 mm Shaft Diameter, 15 mm Length Price: $2.45/each Qty: 4
Grand Prix's have 14mm bolts and CTS-V's use 12mm Bolts
Source info:
https://ls1tech.com/forums/ls4-perfo...brake-kit.html
http://www.grandprixforums.net/showt...+brake+upgrade
I got Slotted/ drilled rotors from Brakemotive.
TECH Apprentice
Joined: Jul 2007
Posts: 325
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4 x 14MM bushing McMaster-Carr Part# 6679K16 Desc: Metric Steel-Backed PTFE-Coated Brnz Bearing for 12 mm Shaft Diameter, 15 mm Length Price: $2.45/each Qty: 4 Grand Prix's have 14mm bolts and CTS-V's use 12mm Bolts Source info: https://ls1tech.com/forums/ls4-perfo...brake-kit.html http://www.grandprixforums.net/showt...+brake+upgrade I got Slotted/ drilled rotors from Brakemotive.
www.brakeperformance.com has cheaper rotors and they're made in the USA.
Last edited by GXP25; Nov 19, 2013 at 09:59 PM. Reason: Corrected the website. Brakeperformance, not brakemotive.
Thread Starter
Joined: Feb 2011
Posts: 383
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From: S. FL to Philly ??
If it matters to anyone, the rotors I got from brake motive for the swap are stamped made in china. I'm guessing the machine the slots & cross drill in US. The work good so I'm not too concerned.
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Joined: Jul 2007
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Do you happen to have a P/N?
Last edited by 92builtbird; Nov 19, 2013 at 08:38 PM.
I made my own brackets. I'm looking to get more made so stay tuned.
I'll update my brake thread with pictures later.
EDIT: It's brakeperformance.com and not brakemotive.com. I'll edit my other post.
Last edited by GXP25; Nov 19, 2013 at 09:56 PM.