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08-15-2018, 08:07 PM | #1 |
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Oem 135i caliper option?
Been hearing talk about 135(i) brake calipers working on our cars (but seems to be popular with E46 owners) with out fitment issues? (Just need to use the performance package rotors and a slight bend to the shield.. so I heard)
Anyone know more about this? Or can direct me to any discussion of it. |
08-15-2018, 08:52 PM | #2 |
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What is interesting is that BMW did not use them on the 1M and instead used E9xM3 front calipers. My assumption is that the E9xM3 front calipers out performed the 135 calipers even though the 6 piston 135 calipers look higher performing.
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08-15-2018, 09:03 PM | #3 |
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Yeah! I thought about that too after looking into it... the e9xM3 calipers are larger than the 135(i). So maybe the brake fade is better with the e9xM3 over the 135(i)?... but they sure do look nicer though.
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08-16-2018, 02:04 PM | #4 |
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Don't bother with these calipers if you are aiming to track with them. They have high heat retention and the piston caps are made of ceramic. They will become very brittle when paired with track pads that can hold more heat. With the stock pistons being poor, you can rebuild them with Racingbrake.com steel pistons but that would increase your costs to a real BBK.
https://www.1addicts.com/forums/showthread.php?t=658932 I had a set on my E46 and they were okay for the street but pretty bad for the track. I ended going with Stoptech ST40s and they were miles better in performance.
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08-16-2018, 02:30 PM | #5 | |
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That looks like standard dust boot failure from high heat. Pretty common for tracked cars, especially if you run the pads below 50% thickness. I do agree that unless you are getting the calipers and rotors dirt-cheap, you'd probably be better-served with a BBK. I don't know what pads and rotors cost for the 135i calipers, nor do I know what kind of selection there is. At least with the M3 caliper you have a huge assortment of street or track pads from Pagid, Hawk, PFC, etc.
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08-16-2018, 02:40 PM | #6 | |
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Journal: Link E9x ZCP Suspension Info: Link Track Chat Discord: https://discord.gg/VsKbTyqBVj SF Bay Area: DM For coding services |
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08-17-2018, 08:41 AM | #7 | |
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Oh, yeah, that sucks. Definitely not a viable track option. Probably fine for the street or autocross. I've never seen the ceramic thing before. I wonder if a titanium shim would help.
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08-17-2018, 10:54 AM | #8 | |
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08-18-2018, 04:09 PM | #10 |
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Performance mostly comes from the rotor and pads rather than the calipers. There is no upgrade here, other than aesthetics.
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08-18-2018, 04:11 PM | #11 | |
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Well the E92 has more power...
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