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Brakes & Suspension Forum sponsored by The Tire Rack |
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02-18-2016, 12:15 AM | #26 |
Scooby Newbie
Member#: 328399
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Seattle, WA
Vehicle:2012 WRX Limited OBP |
Sorry for the lack of clarity. Yes the ats 4 pots
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02-18-2016, 01:11 PM | #27 | |
Scooby Guru
Member#: 71875
Join Date: Oct 2004
Location: Montana
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Quote:
Unless the BRZ calipers are different from all the other 2-pots on the wrx etc, I think the pistons are 43mm. The 40mm pistons are in the FHI 4-pot. |
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02-18-2016, 05:01 PM | #28 | |
Scooby Specialist
Member#: 138994
Join Date: Jan 2007
Location: apparently I "spread the hate"
Vehicle:2006 WRX, 6MT, 5x114 |
Quote:
Thanks for the clarity of staggered piston sizes. That make sense. I did a pretty crude lookup and have not handled BRZ calipers. So you're probably correct there. |
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02-18-2016, 06:25 PM | #29 |
Scooby Newbie
Member#: 329938
Join Date: Aug 2012
Chapter/Region:
SCIC
Location: Burbank, CA
Vehicle:2013 WRX WRB |
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02-18-2016, 07:47 PM | #30 |
Scooby Specialist
Member#: 356784
Join Date: May 2013
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will this bracket allow the zo6 corvette calipers that innovative tune use in their package fit as well
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02-19-2016, 12:49 PM | #31 | |
Scooby Specialist
Member#: 13530
Join Date: Dec 2001
Chapter/Region:
NWIC
Location: Cascadia
Vehicle:EA63 , EA81T, EJ20G, EJ205 |
Quote:
http://www.motoiq.com/MagazineArticl...-Baseline.aspx http://www.motoiq.com/MagazineArticl...g-it-Done.aspx |
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02-29-2016, 08:13 AM | #32 |
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Member#: 287974
Join Date: Jul 2011
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Any updates on this?
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02-29-2016, 04:47 PM | #33 |
NASIOC Supporter
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Join Date: Nov 2012
Chapter/Region:
BAIC
Location: San Jose, CA
Vehicle:2016 STI Limited Silver |
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03-01-2016, 12:33 AM | #34 | ||||||
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Member#: 120
Join Date: Jul 1999
Chapter/Region:
AKIC
Location: Where the Navy sends me...
Vehicle:1997 Legacy 2.5GT 1996 Impreza coupe |
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I'm not sure what you mean by "anyone focused on any braking advantage". Are you saying that you don't think this setup would be an improvement over the typical WRX brakes with 2-pot sliding calipers? Quote:
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03-01-2016, 01:58 PM | #35 |
Scooby Specialist
Member#: 138994
Join Date: Jan 2007
Location: apparently I "spread the hate"
Vehicle:2006 WRX, 6MT, 5x114 |
Ah shoot. You are correct my circle area calculations are wrong. Although it is painfully obvious what went wrong. I will make corrections to them later on.
2015-2016 and I should catch that? I don't own one, don't care to, and also a quick search found Cadillac/GM/Camero forums to be severely lacking in this info as well. If I recall you have (or do) own a Cadillac-V.....so it would make sense that you have more exposure. The thread started out as hey look at this low cost option. It was a bit lacking in details, but that makes sense considering it is a new-ish concept. I was curious enough to start thinking about it and my natural tendency is to ask questions and find things to compare against. I agree, this kit is probably a viable and low cost option to STI application Brembos. Will there be some aspect of braking advantage, probably so. As with the majority of those who swap in STI Brembos it's for the looks more often than any performance advantage. Choosing different pads would serve most better. Let's not kid ourselves here. It's 95% for the look. I bet very few would notice or realistically be able to comment on the change.......beyond placebo effect. Indeed I was not very specific. A strictly-track user is not looking at these types of Brembo calipers whether they are Cadillac or STI application. Note this kit is not at all claiming anything like that. Don't get me wrong. I hope these work out well. Having more options is always better. If you could measure the pistons in your calipers that would be nice to confirm. Last edited by JarHarms; 03-01-2016 at 02:07 PM. |
03-01-2016, 03:45 PM | #36 |
Scooby Newbie
Member#: 328399
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Seattle, WA
Vehicle:2012 WRX Limited OBP |
The ATS calipers from everything I have been able to find are staggered 42/40. I don't have anything accurate enough to measure such a small difference. One piston set is labeled 40. I'm planning to get these installed soon but am still waiting on my tires to come in
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03-01-2016, 05:38 PM | #37 |
Scooby Guru
Member#: 158864
Join Date: Sep 2007
Location: Aussieland
Vehicle:2003 SOHC destroker |
iirc lgt are 42/42 and brembo are something like 42/46mm, so that's quite a nice bias improvement. how heavy is the caliper?
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03-01-2016, 07:15 PM | #38 |
Scooby Guru
Member#: 71875
Join Date: Oct 2004
Location: Montana
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Just pulled up brake math spreadsheet:
42.8 for all the 2-pots (lgt, wrx, rs, etc). 40.4 for fhi 4-pots 46/40 for brembos I think legacy777 got his info out of the FSMs. Centric catalog just says 43mm, which is probably just rounded up. From what I have found the ats caliper has 42mm pistons, all the same size. Also, uses the same pad as the sti. Last edited by jamal; 03-01-2016 at 07:23 PM. |
03-02-2016, 10:44 AM | #39 |
Former Vendor
Member#: 125739
Join Date: Sep 2006
Chapter/Region:
South East
Location: Raleigh, NC
Vehicle:2007 1500HD Need Brakes? 919.420.0021 |
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03-02-2016, 10:46 AM | #40 | |
Scooby Specialist
Member#: 13530
Join Date: Dec 2001
Chapter/Region:
NWIC
Location: Cascadia
Vehicle:EA63 , EA81T, EJ20G, EJ205 |
Quote:
http://www.motoiq.com/MagazineArticl...-Baseline.aspx |
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03-02-2016, 11:17 AM | #41 | |
Former Vendor
Member#: 125739
Join Date: Sep 2006
Chapter/Region:
South East
Location: Raleigh, NC
Vehicle:2007 1500HD Need Brakes? 919.420.0021 |
Quote:
For the products we make we made careful calculations and several prototype fits and local installs but that only proves so much. Our brackets did not stray far from proven parts either so we had reasonable confidence. We did put our front Corvette kit on our C5Z track car and we have run that car hard with Hoosiers at many track days. It's still going fine and we have worn out several sets of pads and rotors. That kit flat out works. We looked at the older CTS-V 4 pot as an STi Brembo alternative but discarded the idea due to the non-symmetrical bracket. We've had a few rust/corrosion/stripped thread issues but no failures .....and there is one particularly well known auto-crossing NASIOC'er who should never touch a wrench again.....! What we do know after 10+ years doing Subaru brakes is that hard use of any Subaru eventually leads to this. The upgrade path we see for this is pretty clear. OEM type stuff 4 pots or LGT brakes (GD/GR cars) STi Brembo's Real BBK's Stoptech, Brembo, Essex designed AP kits. |
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03-23-2016, 10:22 AM | #42 |
Scooby Specialist
Member#: 188079
Join Date: Aug 2008
Chapter/Region:
South East
Location: Brunswick, GA
Vehicle:2003 Stg 2 Bug Wagon Sonic Yellow |
I am doing this now. Do to being a cheap ass, I hunted deals and found one on Ebay NIB for $80 and another on Amazon for $100. I took them over to a friends house on his 2011 STi to compare external sizes and they look very close if not a touch thinner which is a good thing. I plan on doing a writeup on them with full measurements, install photos, etc.
I did a lot of research on the math of the piston sizes, brake torque vs STi Brembos, FHI 4 pots, and found them to be 5-7% less brake torque than an STi brembo which should work well with my H6 upgrade. One neat thing I found was they use steel inserts in the mounting holes so no more helicoiled thread holes. But here are a couple of pictures and one of the kit. The kit looks very well made and even includes a tap for one of the holes on the knuckle. I am painting them and waiting on pads so hopefully getting them done in the next week or so. Here is the kit. The spacers go under the rotor I assume for spacing the rotor to the caliper. Here are a couple of pictures compared to an STi Brembo. |
03-23-2016, 10:42 AM | #43 |
Scooby Specialist
Member#: 319539
Join Date: May 2012
Chapter/Region:
South East
Location: morgan city louisiana
Vehicle:2002 WRX,EJ20,VF30'd PSM,5MT DCCD,RPF1 18's |
nice keep us posted.
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03-25-2016, 04:51 AM | #44 |
Scooby Guru
Member#: 158864
Join Date: Sep 2007
Location: Aussieland
Vehicle:2003 SOHC destroker |
how heavy are they vs the brembo caliper?
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03-25-2016, 05:49 PM | #45 |
Scooby Specialist
Member#: 188079
Join Date: Aug 2008
Chapter/Region:
South East
Location: Brunswick, GA
Vehicle:2003 Stg 2 Bug Wagon Sonic Yellow |
They seem pretty light for the size. I would say close to the STi Brembos. I will try to weigh them.
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03-27-2016, 08:39 PM | #46 |
Scooby Specialist
Member#: 319539
Join Date: May 2012
Chapter/Region:
South East
Location: morgan city louisiana
Vehicle:2002 WRX,EJ20,VF30'd PSM,5MT DCCD,RPF1 18's |
Any Updates?
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04-04-2016, 07:23 AM | #47 |
Scooby Newbie
Member#: 68372
Join Date: Aug 2004
Location: OZ-Adelaide
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04-11-2016, 08:14 PM | #48 |
Scooby Newbie
Member#: 352682
Join Date: Apr 2013
Chapter/Region:
MWSOC
Location: Eastern Iowa
Vehicle:2004 Imprenza WRX WRB |
For anyone interested, Amazon has both calipers on sale for $83 and $89 a piece. Add the pin kit required and my total came to less than $200 for a set of brand new calipers with free Prime shipping
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04-11-2016, 09:12 PM | #49 |
Scooby Specialist
Member#: 325249
Join Date: Jul 2012
Chapter/Region:
Tri-State
Location: New Jersey
Vehicle:2012 wrx dgm |
thats a deal
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04-13-2016, 07:03 AM | #50 |
Scooby Newbie
Member#: 68372
Join Date: Aug 2004
Location: OZ-Adelaide
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I bought some too
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