04-19-2019, 02:10 PM | #111 | |
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have you tested them on track already? do they get enough air to cool the brakes? maybe i'm going to print them on my brothres 3d printer and test them out! |
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04-20-2019, 04:04 AM | #112 |
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Haven't been on track yet. But with the upgraded pads I use (PFC08) I have no doubt at all it'll be enough cooling for my driving. I bet my calipers still will go brown though.
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04-26-2019, 04:54 PM | #113 |
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RooDuct
I finally got a car to work with and measure. I considered my traditional ducts (not much room, heat exchangers in the way of fresh air) Lower A arm ducts (not much of a way to attach them reliably, a lot of steering lock to contend with) Fans (expensive but very possible under the strut and over the ball joint) and just enhancing the factory ducts in the splash pan. I made some fins that add a bit of width and height to the slots. Easy to attach, cheap to buy. They're a bit of a chore to imagine but I hope you'll give it a try. The green lines show the location of the factory duct slot. If someone is going to the track and wants to do an A/B test, I'll send them a set for the shipping cost. https://wp.me/P4oYKc-fS
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05-04-2019, 07:31 PM | #116 |
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Haven't had a chance to do anything due to tons of travel
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08-08-2019, 06:42 AM | #117 |
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M2Comp R has ducting as follows
Front - 3 duct paths top/oem/bottom Top and bottom add-ons can be seen in this photo.. Rear - looks like a scoop fitted - seen just poking out from behind rear rotor in the photo below...
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08-08-2019, 07:18 AM | #118 | |
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Current '22 X3M LCI.. |
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08-08-2019, 07:25 AM | #119 | |
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https://www.realoem.com/bmw/enUS/sho...diagId=51_7410 Would achieve a similar outcome as DrKevM5 w/o shelling for the $800 BP-E undertray, shipped in from China....
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08-08-2019, 08:18 AM | #120 |
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Where are these pics from! I am in the process of fabing something up for my M2C. See the 2NH thread.
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08-08-2019, 08:22 AM | #121 | |
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08-08-2019, 09:14 AM | #122 | |
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08-08-2019, 09:35 AM | #123 | ||
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Mines OGM2 so no oem ducts from the front into the wheel wells. I'm considering LW splitter and either BP-E replacement undertray ala DrKevM5 or LW splitter and adapting aftermarket ducts to fit between m2 bumper and LW splitter - something along the lines of these https://www.nengun.com/re-amemiya/br...IaAo6BEALw_wcB
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08-08-2019, 01:56 PM | #124 |
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Some feedback on the 3D printed scoops I made, I have NO brake problems whatsoever. Very happy with the solution. For me there is no need to take air from the front at all, the scoops get all the air they need at the position they are. I drive on TrofeoR 265 & 295 that thanks to their great grip do put some extra heat into everything too.
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08-09-2019, 03:12 AM | #125 | |
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I go to Zandvoort and Zolder which are medium and heavy on the brakes and I am heavy on them to so I need all the help I can get The M2C has those nice inlets to the front so I am going to use the :P and NL is full of sleeping policemen that I already barely clear. Your solution is nice and what I plan to do for the rear. For now I want something I can quickly remove if I have to bring the car in to the dealer. |
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08-10-2019, 04:37 AM | #126 |
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Anyone got views on NACA duct install into M2 undershield as per David Warrens on e8x 135i ??
https://www.bimmerpost.com/forums/sh...php?p=20256631
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08-10-2019, 07:31 AM | #127 | |
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08-20-2019, 10:57 AM | #129 |
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duct extensions
Hi, Rob Norwalk reported back from his weekend:
"No brake issues during multiple 30 minute sessions with ambient temps approaching 90 degrees. For reference, MidOhio sports car chicane course – with a best lap of 1:41, and many 1:42s, which requires consistent 140+ mph downhill back stretch speeds before a downhill right hand turn #7... ...although I don’t have objective measurements, I believe improved cooling compared to last time without. Certainly no color changes to the front calipers from the day." Although I tried to run a simulation, I had no idea what I was doing and it was interesting but useless. I was promised an instructor, maybe they'll let me try again but Rob beat me to results either way. |
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09-10-2019, 08:55 PM | #130 |
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Threw these on the rear. 997 Turbo Rear Brake Cooling Duct Kit. Planning on hooking up with randyzimmer for a dedicated electric fan solution for the front.
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10-03-2019, 01:40 PM | #131 | |
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I have the Porsche ducts on the lower arms as well and just tested them to observe the airflow up to 100 MPH. It appears they actually work well with some little tweaks. |
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10-04-2019, 12:26 PM | #132 | |
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I was a bit overoptimistic with my previous estimate. I just checked (since I thought 24 hours was so much more than my estimate). With my (pretty cheap) Anycubic Mega-S/i3 the print time is actually a bit over 5 hours for the scoop. That is with 0,4mm nozzle, 0.3 mm print layer height and slight tweaking of number of walls and print speed. With a slightly wider nozzle and higher print height 3 hours would probably be possible though. |
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