05-08-2019, 06:43 AM | #46 |
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You're asking for trouble. Rear braking stabilizes the car.
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05-08-2019, 08:28 AM | #47 |
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I haven't tried disabling the eLSD via coding yet. If you have a mechanical LSD, it might be fine.
As for brake ducts, I know that the M Sport package has air ducts for the front brakes so I view aftermarket ducts as unnecessary. Better pads like Pagids for the M Sport/M Performance Brakes and fresh brake fluid (even OEM BMW DOT4 brake fluid) is plenty for HPDEs. I've consistently ran F80/82 M3/M4 brake pads in my M Sport Brakes when the car is shared between my girlfriend and myself at HPDEs. Of course, my powertrain is largely stock. so I wouldn't be going nearly as fast as M3/M4s down the straights to completely overwhelm their brake pads. |
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05-08-2019, 10:04 AM | #48 | |
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05-09-2019, 09:58 AM | #49 | |
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So I believe the M Performance LSD does have some lock during deceleration which tends to straighten out the rear of the car. If you have an open diff, I would completely agree with you. Disabling eLSD on an open diff car is asking for issues in inclement weather - snow. |
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05-09-2019, 10:57 AM | #50 |
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Ah gotcha.
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05-15-2019, 11:23 PM | #51 | ||
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05-17-2019, 06:08 AM | #53 | |
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You want that. If it's cooking your brakes then turning it off just means you'll lose the rear end. Our traction control isn't that invasive that it slows you down when driving at the limit. Just prevents you from going past it. |
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05-17-2019, 07:48 AM | #54 | ||
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F30 335iX | Remus Axleback | Fabspeed Catted DP | VRSF Comp IC | 18X9 ET35 19lb MT1 | 255/40/18 ECS | Ohlins RT Millway Street | Millway Control Arm Bushings | Turner Endlinks | TMH 75mm 14x1.5 Studs | BMW MPerf LSD | XDelete | Pipercross Filter | MHD Stg2 93
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05-17-2019, 09:48 AM | #55 | |
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DSC controls the response time when the car begins to lose traction. So it lets you get a little sideways and put more control on the driver. But again, sliding isn't fast on tarmac so you really want to keep it on. Both are only used when you're losing traction. When traction is good, even at the limit, no extra braking is being applied. But an open diff cannot physically in any way send more power to one tire or the other. An actual eLSD like what's in the F8x cars, where electronic actuators shift clutch plates in the diff, is what we really want to push power to the wheel with traction rather than compensating for the wheel that doesn't have traction. But it's cheaper and more economical for BMW to do it this way with controlling it using the ABS module. |
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07-23-2020, 06:56 PM | #56 | |
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bro, was the Duct: 2.5" x 7' large enough?
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07-24-2020, 10:22 AM | #57 |
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The length or width? The hose was too wide and it was impossible to turn the wheel all the way without hitting the hose and this was with the inner fender liner removed. I abandoned the idea due to not enough clearance.
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07-27-2020, 12:29 PM | #59 |
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Just wanted to post my setup. Hope it helps you or someone.
I also used 2.5 in hose and the 2.5 flange. Same one Solidjake used actually. For the way I set it up a 3in wouldn't fit. Plus the scoop flange is 2.5. Had to pull off the dust shield, hammer it somewhat flat, cut an opening and rivet the flange to it. Make sure to put the flange close to the hub so the air will go through the rotor. I'm thinking of doing a bit of a redesign with attaching a little sheet metal to the shield to block the air from coming back out and forcing more through the rotor. But it's still been helpful as is. Also mount the scoop to lower control arm. I don't remember exactly where I got it, but it's for for a Mini. So searching that you can find one. Also, if you have a 3D printer someone on one of the M boards (don't remember if it's the f80 or f82 board) had posted the model to print similar ducts. You can use clamps, but I found strong zip ties work well too. You have to have some to mount the duct to the control arm anyway. It's not too difficult or expensive of a process. But I did find my brakes to be more fade resistant. Unfortunately I don't have temperatures to back anything up, just what the results felt like. Let me know if you have questions. Stay healthy. |
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07-27-2020, 08:01 PM | #60 | |
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07-28-2020, 08:59 AM | #61 |
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Only thing is it's not very effective. You really need to aim the airflow at the center of the brakes so it'll direct air through the vanes. Hitting the flat part of the disk won't really cool it down.
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07-28-2020, 09:28 PM | #62 | |
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Thanks 👍 |
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08-08-2020, 06:54 PM | #64 |
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04-11-2023, 06:54 PM | #66 |
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Hey! Totally reviving this thread, skier_du did you ever go back and update this setup? Thinking about attempting your set up this coming summer.
Did my first HPDE day, and had some sketchy fade on hp+'s and roasted my rubber lines on rbf600, so I'm thinking a ducting upgrade and steel lines should be the trick to getting that sweet spot. For anyone else tracking their f30s especially the heavier's 6 cyl's any other recommendations? I already have blue calipers so I don't want or need a BBK, maybe getting DTC pads next. Last edited by TheUnicorn340; 04-11-2023 at 07:03 PM.. |
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