BMW F8X M (All variants) front and rear brake cooling kit

[Westersund]

The last kit eligible for a free bonus was snagged by bmcph.


I took some fresh pictures since I had a complete rear kit ready and also a few pictures from the installation of the right side.

The following is included in a rear kit:

- 2x Ducts for the backing plates (right/left)
- 2x Ducts with meshes for the lower control arms (right/left)
- 2x Hose holders for the toe arms (right/left)
- 1x Cutting template
- Zip ties (16x short & 8x long), bolts (2x M6x25), nuts (2x low M12x1.5), washers (2x M6x19 & 2x M12x28)










A picture of how the cutting template should be placed on the backing plate, there's a left and right side of the cutting template (the "L" should be visible on the left side and "R" on the right side). The edge of the cutting template should be pushed against the pressed round edge on the backing plate (green arrow) and the radius of the cutting template shall rest against the pressed radius where the bell (brake disc) sits at (green dotted line). Mark the inside of the cutting template (red dotted line) with a sharpie.




There's probably different ways of doing this but I drilled a 10 mm hole and pursued with a pneumatic die grinder with a metall burr bit.




Do it step by step. Install the duct by hand tightening the nut and check the clearance. I used a file for the last bit.




When you're happy with the shape de-burr the edges with a utility knife or a de-burr tool.






The duct sits on top of the nut to the toe arm and there's enough thread left for a washer and a low nut. Use a dab of Loctite, don't over tighten!




The duct also mounts at the same location as the ABS-sensor, longer bolts and wide washers are included in the kit. I recommend protecting the wire (green arrow) to the ABS-sensor with a few layers of electric tape made of polyester (durable and low friction).




The hose holders are unique for each side to fit the chamfer of the toe arm.




And finally a picture of the right side installed.

[Westersund]

It's been a long and cold winter so far in Sweden so I've been indoor working on a V2 of the front kit and here's the result. I painted the first 2 kits now, 1 will be test fitted on my car and the second will be sent out to F87Source who will do a review of the kit.
The bigger ducts on the control arms are the same as the V1 kit (if someone would want to upgrade in the future I will make a special price for you) but the small duct and the backing plate/funnels are a new design. I've tried to take all feedback into consideration and that's why the backing plate is larger to cover all the joints and now there's active cooling onto the calipers as well. This kit is mainly for all the blue caliper boys out there (at least the caliper parts) to proove all the naysayers out there that the stock brakes are the way to go on track.

- The price for this new V2 front kit will be 500$, enlargers for both the small and big control arm ducts are included. The hose holders for this kit have been updated (not in these pictures though) as well as the ducts and enlargers for the control arms.

- For those looking to upgrade from a V1 to a V2 kit the price will be 350$, if you didn't have the enlargers from before I will include them free of charge.

- And from now on all V1 kits will have the enlargers included, free of charge.

[cliffordm4]

Very cool - I would totally buy one of these but I have the M2C brake conversion, as well as SPL control arms. It looks like the hose holders are specifically designed for OEM control arms, yes?

[Westersund]

Originally Posted by cliffordm4

Very cool - I would totally buy one of these but I have the M2C brake conversion, as well as SPL control arms. It looks like the hose holders are specifically designed for OEM control arms, yes?

The hose holders are designed with the OEM control arms in mind, correct. However the cutout can be adjusted to suit the SPL control arms. As for the caliper cooling part I believe that the caliper adapter will be in the way of the duct.

[FrankMstein]

Originally Posted by Westersund

It's been a long and cold winter so far

Very nice work!! Can you make a caliper cooling duct? Primarily for the CCB community? Might be a tad hot for printing.

[Westersund]

Originally Posted by FrankMstein

Very nice work!! Can you make a caliper cooling duct? Primarily for the CCB community? Might be a tad hot for printing.

I could, but the problem is that I don't have anyone close by that owns a car with CCBs so I can't scan the caliper area. Don't really know how to install the duct on the knuckle unless I make a bracket for the calipers with extended bolts. That's what's nice with the blue calipers, there's enough space between the knuckle and the caliper to install the duct on the backing plate.

[Westersund]

So here's some pictures of the new Race kit, installation pictures/instructions will be posted shortly. To make it more clear I will rename the old Race kit to Clubsport.

[FrankMstein]

Price USD?

[Westersund]

Originally Posted by FrankMstein

Price USD?

It’s 500$ for the new Race kit.

[Cpt.K]

How well would this integrate with AP brakes and SPL arms?

[Westersund]

Originally Posted by Cpt.K

How well would this integrate with AP brakes and SPL arms?

The SPL arms look flat so the ducting will mount just fine, the main backing plate will work as well but the caliper part won’t because of the caliper design of the APs (radial mount with adapter). Might make an universal mount for the caliper duct in the future that utilizes the caliper bolts.

[Cpt.K]

Thanks, looking forward to future development

[Westersund]

I have installed the new Race kit and everything fits and clears with a few well placed hose holders and some pre-clocking of the hoses to make them turn the way you want. I'll finish up the installation guide as a PDF this week.

[Westersund]

I have updated the first page with the installation guide for the new race kit. I hope the URL works, new to Dropbox.

[FrankMstein]

Great! Interested to see wheel clearance at full lock. Can I buy the black hub piece separately?

[Westersund]

Originally Posted by FrankMstein

Great! Interested to see wheel clearance at full lock. Can I buy the black hub piece separately?

Wheel clearance isn't a problem, haven't changed anything that could possibly interfere with the wheel. Worst case is a wide 18" could rub against the bigger duct a little on the side. 19" isn't a problem at all.
I can sell the big part of the backing plate separately, I'm working on a caliper holder for the bigger brakes though. If you don't want to wait just send me a PM.

[FrankMstein]

Caliper holder???

[Westersund]

Originally Posted by FrankMstein

Caliper holder???

A duct holder that mounts using the caliper bolts.

[FrankMstein]

Originally Posted by Westersund

A duct holder that mounts using the caliper bolts.

You have a pic yet of that?

[Westersund]

Originally Posted by FrankMstein

You have a pic yet of that?

No, sorry.

[Westersund]

Originally Posted by FrankMstein

You have a pic yet of that?

Made a quick drawing for you. Didn't want to spend too much time on it before I have a scan of a car with the big brakes. But you get the point.

[TyreReviews]

As a fellow 3d printer I just wanted to hop on and say good job. I'm also surprised PETG is heat resistant enough, I'd have assumed ABS would have been the material of choice.