#54708 - 03/14/09 04:05 PM
Re: 12" rotor upgrade DONE! (writeup included)
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Registered: 01/01/08
Posts: 3900
Loc: Ontario, Canada
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Yes, they are the same size. There are really only 2 readily available upgrades for wbody rear brakes.
1) An F-body setup BUT they are outrageously expensive. I believe wbodystore has them for 600+.
2) Grand Am calipers - I wouldn't really consider them an upgrade but some do switch to them because they are made out of aluminum instead of cast.
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#54709 - 03/14/09 07:02 PM
Re: 12" rotor upgrade DONE! (writeup included)
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Registered: 04/18/05
Posts: 8901
Loc: Bradenton, FL
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Originally posted by r.s.hutchinson:
2) Grand Am calipers - I wouldn't really consider them an upgrade but some do switch to them because they are made out of aluminum instead of cast. Grand Am calipers are for weight reduction. The stopping power is reduced.
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Corey Smith 
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#54710 - 03/14/09 09:26 PM
Re: 12" rotor upgrade DONE! (writeup included)
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Registered: 08/31/06
Posts: 4021
Loc: Batavia, Ohio
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I really want F-body brake set up. They look very awesome. Maybe I will get lucky at junk yard. There is some few firebirds at local junk but it is old model. Maybe this year I might get lucky like I found some goodies last year.
I didn't know grand am is work on grand prix. Thats interesting.
All I know
04+ GXP brake setup
F-body brake setup
this thread
Grand AM brake setup
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#54711 - 03/14/09 09:33 PM
Re: 12" rotor upgrade DONE! (writeup included)
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Registered: 01/01/08
Posts: 3900
Loc: Ontario, Canada
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Patrick, if you can find any 00-04 impala there they should have the calipers you need for 12" rotors, which is the same look as F-bodies.
I don't imagine you want the F-bodies because they actually work better, I figured you just want the look.
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#54712 - 03/14/09 09:44 PM
Re: 12" rotor upgrade DONE! (writeup included)
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Registered: 08/31/06
Posts: 4021
Loc: Batavia, Ohio
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Yeah, I want it as good look too. Mine is really old and rusty since 2002. I figure it is time to upgrade. Oh course, I will have 18" wheel install too.
At my local grand prix meeting today. I met member who have GTX wheel but he has stock rotor. I just like whoa that's really tiny rotor with 18" wheel on it. lol
Thank for remind about Impala. I didn't know about that too.
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#54713 - 03/14/09 10:24 PM
Re: 12" rotor upgrade DONE! (writeup included)
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Registered: 03/07/09
Posts: 355
Loc: Topeka, KS
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**** ok u win now would it be better to get vented rotors in the stock size or new rims and non vented 12" rotors
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 sig by R.S. CAI, GM 85 MM MAF, HV3, MSD ignition packs, PLOG, 3" SS Catless DP, ZZP PCM, ported TB, ZZP PCM, KYB GR2 Struts, SSC springs, black 18's with mirror machined lip and spoke face, 03 Limited Edition spoiler. coming next: stattma turbo, ST4 cam, aluminum heads...
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#54714 - 03/14/09 10:33 PM
Re: 12" rotor upgrade DONE! (writeup included)
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Registered: 08/31/06
Posts: 4021
Loc: Batavia, Ohio
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Originally posted by amcsocold: those rims dont curve the the post 96 style i have them on my 93 bonneville SSEi but with lots of curbrash  oh well ill give up is nybody selling the chrome style thats in palsuts pic? Sorry, miss that post. If you want that wheel from my sig. Maybe you like this one? They are same as my sig. Oh they are polish. Not chrome. http://cgi.ebay.com/ebaymotors/16-FACTOR...sQ5fAccessories
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#54715 - 03/14/09 10:50 PM
Re: 12" rotor upgrade DONE! (writeup included)
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Member
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Registered: 01/01/08
Posts: 3900
Loc: Ontario, Canada
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Originally posted by amcsocold:
**** ok u win now would it be better to get vented rotors in the stock size or new rims and non vented 12" rotors good - cross drilled and/or slotted rotors better - 12" blank rotors best - cross drilled and/or slotted 12" rotors
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#54716 - 03/14/09 11:16 PM
Re: 12" rotor upgrade DONE! (writeup included)
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Registered: 10/04/08
Posts: 294
Loc: Lawndale, CA
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Originally posted by 98greenGT: Thanks, I'm assuming the Impala's and Monte's have the same size rear rotors as us correct? [/b]Yes they do. The rear I got from this kit went on just as easy as the front. I did paint the rotor hats black since they are plain and will eventually show rust. The rotors do look nice and they have been great so far.
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99 Grand Prix GT ER Rockers|HV3|HV TB|Borla Catback|Black Koblenz|GMPP Lowering|GMPP Handling www.fquick.com/The_Guz
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#54717 - 03/15/09 01:27 AM
Re: 12" rotor upgrade DONE! (writeup included)
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Registered: 05/10/07
Posts: 1361
Loc: Chicago, IL
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Did you do just the Impala/Monte brackets or did you do the entire F-Body upgrade calipers included? Sorry if you already stated what you did I'm just trying to figure out what would be the most effective way to do this upgrade.
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 1998 Pontiac Grand Prix GT WizAired CAI, Impala 12" Brake Upgrade, ZZP Alternator Rewire and Voltage Booster, Rotated Dogbone Mounts, Kicker KS690 6x9s, JBL GTO427 4s, JBL P652S 6.5s 2001 Ford F150 XLT SuperCab Stock, LineX, 212K
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#54718 - 03/15/09 05:07 AM
Re: 12" rotor upgrade DONE! (writeup included)
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Member
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Registered: 10/04/08
Posts: 294
Loc: Lawndale, CA
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I did the impala/monte carlo brackets. I did not go with the f body set up.
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99 Grand Prix GT ER Rockers|HV3|HV TB|Borla Catback|Black Koblenz|GMPP Lowering|GMPP Handling www.fquick.com/The_Guz
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#54719 - 03/15/09 12:20 PM
Re: 12" rotor upgrade DONE! (writeup included)
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Registered: 05/10/07
Posts: 1361
Loc: Chicago, IL
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Perfect. Now just to find time to get to a junkyard that's got an Impala or Monte.
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1998 Pontiac Grand Prix GT WizAired CAI, Impala 12" Brake Upgrade, ZZP Alternator Rewire and Voltage Booster, Rotated Dogbone Mounts, Kicker KS690 6x9s, JBL GTO427 4s, JBL P652S 6.5s 2001 Ford F150 XLT SuperCab Stock, LineX, 212K
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#54721 - 03/15/09 08:54 PM
Re: 12" rotor upgrade DONE! (writeup included)
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Member
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Registered: 03/07/09
Posts: 355
Loc: Topeka, KS
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yes those are nice but like ive heard people say b4 i want to be able to look at them and throw them on a spin balancer to see just how true they run and for 300 i could get cheap 18s or some sweet 17s with my work discount but like ive said i want to look real close to stock but run like a champ.
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sig by R.S. CAI, GM 85 MM MAF, HV3, MSD ignition packs, PLOG, 3" SS Catless DP, ZZP PCM, ported TB, ZZP PCM, KYB GR2 Struts, SSC springs, black 18's with mirror machined lip and spoke face, 03 Limited Edition spoiler. coming next: stattma turbo, ST4 cam, aluminum heads...
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#54722 - 03/15/09 10:21 PM
Re: 12" rotor upgrade DONE! (writeup included)
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Registered: 04/13/06
Posts: 6709
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Herc, or anyone, know if you can buy just some brake lines from summit or jegs that work.
I know zzp has some, but I've heard of some issues with theirs.
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