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06-06-2017, 08:24 PM | #67 | |
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06-18-2017, 08:00 AM | #69 |
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hi,
just to sum the learnings so far: M4 breaks should fit on our E9x M3's under following conditions: Front: M4 Rotors fit fine / Calibers need a new bracket Back: M4 Rotors fit fine / Calibers are bolt on. If this is correct, then my question is if there is a supplier of the needed bracket for the front calibers? thx // Chris Last edited by BMW3DK; 06-19-2017 at 12:18 AM.. |
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06-18-2017, 09:10 AM | #70 | |
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06-19-2017, 12:18 AM | #71 |
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07-04-2017, 12:47 PM | #74 | |
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Turns out the front calipers I have are from a M235i, which has a slightly different bolt pattern.
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07-04-2017, 05:04 PM | #76 |
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On M235i you can not fit m4 rotors because M cars have different hub. You can fit F series performance rotors 370mm+m4 brake calipers. I think that setup is bolt on on F and E series.
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10-17-2017, 09:49 PM | #78 | ||
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OP and topic is legit. These are the types of topics that help progress our community. All I got from your posts are 1) you are not a brake engineer 2) you spent money 3) you spent the time to click this thread. Read the posts and then type lengthy replies that are meant to shoot down someone?s idea. I don?t see any justification on why you can tell anyone not to do something to their car? |
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10-17-2017, 09:57 PM | #79 | |||
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10-19-2017, 10:59 AM | #80 | |
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'04 M3 - Fall Line Motorsports Built Race Car - S65 swap, Dry Sump, Bosch Stand-Alone ECU, Drenth Sequential Trans, MCS 3-Way, Flossmann Wide Body, Brembo Motorsports Brakes, Drexler LSD, BBS E88 Etc. INSTAGRAM - @Slicer_M |
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10-20-2017, 08:50 AM | #81 |
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oem rotors on m3e9x and f8x works really excellent. they are two piece and floating, and cheap enough.
but, oem calipers too small this cars (this size works good on 1200kg cars). we have good results o oem rotors, when changing calipers on 6 pot brembo. |
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10-20-2017, 09:19 AM | #82 | |
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Total piston surface area between stock and most big brake kits is almost the same.
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10-20-2017, 10:55 AM | #83 |
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I actually emailed turner about their kit and they came back and said for the money, I should consider stoptech's bbk instead.
I lol'd. Basically they offer it but reluctantly I guess. Plus it looks corny if you don't do the rears as well. |
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10-20-2017, 07:55 PM | #84 | ||
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enough for what? i'm defining this very easily - how long time one pads set can run. for example, f80 with oem brake system (iron rotors) can make about two track days on best pads you can take (ccr-g, pagid rs29 etc) and after half of the season you get burned seals in calipers. someone really calling this "enough brake system" ... temperature is so high, that pads works very short time, they are simply burning in hard conditions. easiest way to change it - use larger calipers. when we change oem calipers on 6 pot, pads works much longer time. seals also works much longer, even in the same conditions. Quote:
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11-16-2017, 02:15 PM | #85 |
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HI guys thought that id chime in.
Ive recently upgraded my 335i's brakes to the f3x m performance brakes as well as M3 e9x master cylinder. I have some relavent experience i can share to help people understand some of what might be happening here. The coloured front callipers vary - there are two blue types ones suited to 340mm discs and others from the M3/4/m performance that are suited to 370mm and 380mm discs. They will have a number cast into them its either 340or 370/380. The red yellow and orange M performance brakes are all suited to 370/380mm discs and can be purchased brand new for around 1200 US from your local dealer or online. You will then need M4 discs and the whole lot will bolt up. What im saying is that MDMA 135i probably has the 340mm set and needs a bracket to suit the larger 380mm discs. The callipers and discs from an M4 should bolt straight on to a e9x m3. It's the same calliper different casting. The rears should bolt up as well, just use the m4 discs as doogee has said. How do i know this? Ive been wrestling with a similar conversion myself on my 335i. For those saying things like get a proper upgrade buy a BBK etc .... this isnt an upgrade. Thanks for your input, perhaps comment on the threads about your experience with your brake kit. You've stated you dont think its a good idea... thanks. That's all we need. If this isnt a worthwhile upgrade people will post negative experiences and eventually the thread will die. But if you haven't tried it yourself maybe leave the commenting to those that have? MDMA 135i and doogee id appreciate some pictures of your rear calliper setups with e9x and f8x discs to compare...
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11-16-2017, 02:38 PM | #86 | |
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m3 e9x/1m e8x has 138mm between caliper lug mount bolts, e9x/e8x non M has 122mm between bolts, same size as on f3x and f8x. f3x has fully the same lug mounts as on e9x e8x non M, cause you can take 370mm rotor from f3x and fit it with same for 4 pot. but! 4 pot caliper on f8x works on 380mm rotor with different height (from memory 62.3 vs 73mm on non M), so lug mounts has the same size between bolts but all other dimensions differs from non M upright. and, 340 and 370mm rotors are shit, compared to 360/380 M rotors, because M rotors has floating construction (non M are two piece but fixed). |
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11-16-2017, 04:44 PM | #87 |
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Well Im wrong about the fronts then. The rest still holds true ?
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