FOR SALE BMW Z4 M Brake Cooling Kit

[Westersund]

I've had a lot of people messaging me about the brake cooling kit and I really appreciate the interest! During summer I had a lot of problem with the printers and having a lot of other things to do I gave up on fixing them and ordered a new Prusa. The new printer was supposed to arrive during quarter 3 but it was post poned due to component shortage, the new estimated delivery is in January 2023.

With that said my patience with 3D-printing as a manufacturing process have reached it's end. Moving forward I will look into making my products in carbon fiber instead and only use 3D-printing for prototypes, one off's, moulds and complex parts. I can't give you an exact date when I'm gonna get there but I will update this thread when I know more.

 

[Westersund]

So I'm back to printing and I've looked at the numbers and the new price for a complete kit is 3.700 SEK, for the added amount of 500 SEK all metal parts come painted (heat resistant on the backing plates), backing plates are pre-assembled, all hardware such as bolts/nuts/washers will be included. Hose and hose clamps will not be included.

The first 5 kits sold will recieve a bonus consisting of meshes for the intakes and hose holders for the dampers.

 

[Westersund]

New and improved design of the front frame of the rear brake cooling. The rear kit will decrease your brake disc temp by about 100 degrees C, it's been measured in equal conditions by a Time Attack competitor here in Sweden I help with brake cooling.



Now it comes with holes if you wish to install a mesh for extra protection from stones etc.



Like I have done here on my E46 M3.

 

[Westersund]

Bump!

 

[peakay]

Hi @Westersund, was wondering if you could offer some help for a Z3 guy in exchange for this free bump??

I'm trying to route cooling air to the front brakes of a supercharged standard Z3 (not M). I have some printed fornt brake ducts and hosing, but can you answer a few questions? You mentioned using them on a standard Z3 at another site.

- Using 3" hose, can ducting be routed for a street car and not really affect street driving? My wife drives our Z sometimes.

- Do Z3M / E36 M3 backing plates fit a standard Z3? Our totors are smaller by 29mm, so 14.5mm each side. I'm thinking if the backing plate bolt pattern is the same (is it?) then the rotor size difference should be ok.

- Do you cut and route the hoses through the wheel liner or somehow behind it? lack of cutting would be great, but not opposed to breaking out the dremel. Any advice you can offer on routing is appreciated.

Thanks... and BUMP!

 

[Westersund]

Hi @Westersund, was wondering if you could offer some help for a Z3 guy in exchange for this free bump??

I'm trying to route cooling air to the front brakes of a supercharged standard Z3 (not M). I have some printed fornt brake ducts and hosing, but can you answer a few questions? You mentioned using them on a standard Z3 at another site.

- Using 3" hose, can ducting be routed for a street car and not really affect street driving? My wife drives our Z sometimes.

- Do Z3M / E36 M3 backing plates fit a standard Z3? Our totors are smaller by 29mm, so 14.5mm each side. I'm thinking if the backing plate bolt pattern is the same (is it?) then the rotor size difference should be ok.

- Do you cut and route the hoses through the wheel liner or somehow behind it? lack of cutting would be great, but not opposed to breaking out the dremel. Any advice you can offer on routing is appreciated.

Thanks... and BUMP!

Sorry Peakay, didn't get a notification! I'll send you a PM.

 

[3002 tii]

Here’s an odd request. Can you make a brake duct delete plate? Basically a cover that blocks off the duct for aero purposes… something like this but sans rivets.

 

[Westersund]

Here’s an odd request. Can you make a brake duct delete plate? Basically a cover that blocks off the duct for aero purposes… something like this but sans rivets.

It would be possible, but right now I don't have a 3D-scan of the front bumper. If I decide to make one, do you want the cover to mount from the front or the back?

And it's an unusual request, you're the first.

 

[3002 tii]

Here’s an odd request. Can you make a brake duct delete plate? Basically a cover that blocks off the duct for aero purposes… something like this but sans rivets.

It would be possible, but right now I don't have a 3D-scan of the front bumper. If I decide to make one, do you want the cover to mount from the front or the back?

And it's an unusual request, you're the first.

By front vs back, do you mean relative to the bumper (i.e. front would be almost like a cap or cover installed with bumper on)? Or relative to the brake duct so front meaning it would get sandwiched between bumper and duct?

I initially envisioned the latter where it’d be a 1 piece kit, same as your brake duct but 1-2mm “shorter” in length to account for the cover that would be 1-2mm thick. The goal being something that sits as flush to surface of exterior bumper and won’t shatter easily by typical road debris.

 

[Westersund]

By front vs back, do you mean relative to the bumper (i.e. front would be almost like a cap or cover installed with bumper on)? Or relative to the brake duct so front meaning it would get sandwiched between bumper and duct?

I initially envisioned the latter where it’d be a 1 piece kit, same as your brake duct but 1-2mm “shorter” in length to account for the cover that would be 1-2mm thick. The goal being something that sits as flush to surface of exterior bumper and won’t shatter easily by typical road debris.

Yeah, that's exactly what I meant. Making a cover with that tight of a tolerance require a 3D-scan for a perfect fit. But I get what you want to achieve and at the present that's nothing I can help you with as I don't have a 3D-scan. The cooling duct was made the old school way and was my first product.

 

[3002 tii]

By front vs back, do you mean relative to the bumper (i.e. front would be almost like a cap or cover installed with bumper on)? Or relative to the brake duct so front meaning it would get sandwiched between bumper and duct?

I initially envisioned the latter where it’d be a 1 piece kit, same as your brake duct but 1-2mm “shorter” in length to account for the cover that would be 1-2mm thick. The goal being something that sits as flush to surface of exterior bumper and won’t shatter easily by typical road debris.

Yeah, that's exactly what I meant. Making a cover with that tight of a tolerance require a 3D-scan for a perfect fit. But I get what you want to achieve and at the present that's nothing I can help you with as I don't have a 3D-scan. The cooling duct was made the old school way and was my first product.

I’m open to alternatives if you have suggestions..?

 

[Westersund]

I’m open to alternatives if you have suggestions..?

At the present I don't have a good suggestion, without a 3D-scan, that wouldn't require a lot of back and forth. I've got many projects coming up so I have to prioritize, sorry.

 

[Westersund]

Some new pictures on the kits ordered by Steven in Seattle, USA. This is how the front and rear kits are delivered (all parts painted and all required installation hardware included). But as usual hose and hose clamps are not included, the meshes and damper hose holders are extras as well. But if you buy a front and rear kit I can include those as well.

Rear kit...




















...front kit.

 

[A.Tilley]

Can you message me please Westersund, interested in this and have few questions, thanks

 

[Westersund]

As promised I have updated the rear kit now that I have a 3D-scanner. This kit is bespoke to the Z4 M/E46 M3 (the only difference is the V-brace air intake). The old rear kit will still be available is someone prefer that. The new air intake on the V-brace only extends 26 mm from the bottom of the V-brace. This kit will cost the same as the older kit, 250$, and everything but hose and hose clamps are included. As always, if you buy a front and rear kit at the same time you will get 50$ discount on the rear kit. An installation guide will be available shortly.

As I mentioned the V-brace air intake only build 26 mm below the underside of the V-brace. The intake are printed in PETG and the backing plate ducts are printed in glasfiber re-inforced nylon (PA6-GF).

Included in the kit is a cutting template to make a (near) perfect window in the OE backing plate.

Installed with OE droop of the suspension which compresses the hose a lot, but it works.

Clearance between the duct/hose and the wheel (18x10" ET27) is about 20 mm so it is possible to run a wider wheel.

Here you can see that the ducts/hose is inside the contours of the rear trailing arm.

This is with the car on the ground, my car is about 25 mm lower in the rear than stock.

 

[Westersund]

At the bottom of the first post you can now find the installation guide for the new rear brake cooling kit.

 

[Westersund]

Perfect time to order your winter upgrades!

 

[abb424]

I would love to buy one of these. My current stock brake ducts have broken and this isn’t only a replacement, but an upgrade! Please let me know if these are still available and what the next step is. Thanks!

 

[Westersund]

I would love to buy one of these. My current stock brake ducts have broken and this isn’t only a replacement, but an upgrade! Please let me know if these are still available and what the next step is. Thanks!

I sent you a PM.

 

[Westersund]

The new Race version is now done with a single 3" inlet and protection for the ABS-sensor and ball joints. Another version with dual inlets/outlets (2x2.5") will be done both for the backing plate and front bumper.