All Things Mk5 > Members Rides
Very budget track build
Clarkj93:
--- Quote from: Marticus on May 29, 2023, 09:41:27 am ---Looks like you're making good progress. Regarding brake ducting, this is something I'm currently playing with.
As there is not much off the shelf I'm playing with 3d scanning and am hoping to eventually have something in carbon fiber pulled from 3d printed molds.
I'm fairly confident that it's achievable, but I'm having to climb a steep learning curve with the 3d design part of things as the scans I took are too big and details for the simple program I was using in the past.
Anyway give me a shout if you have any ideas or want to coordinate, this isn't something I'm trying to profit from I'm hoping to eventually have some designs that anyone can get 3d printed directly in abs, or print molds for carbon / fiberglass.
--- End quote ---
Very cool stuff. So my understanding is, with a caliper that requires an adapter like the ttrs calipers and porsche stuff this creates a larger gap from the hub to the caliper allowing more freedom in terms of brake ducting design. This is how it appears in pictures anyway so that is worth noting.
Byc have an interesting idea attaching a bracket to the guide pins here
https://bycdesigns.co.uk/index.php?route=product/product&product_id=100
Also any alloy hub from a s3/passat/TT will have a sort of wider hub making brake ducting even more difficult to design than with the std gti one.
I think a duct to the gap between the hub and caliper is probably the best option if possible.
I do have a TT hub in the shed though so I can test fit stuff quite easily and if I need to get hold of a dust shield or cheap caliper to trial it should be inexpensive and quick to check so happy to help.
For the meantime I will jam a double skin duct to the caliper and protect it with silicone tape, it will get crushed on full lock and will need to be maintained but should be an OK temporary solution.
Marticus:
Good information there thanks, thats a cool product as well.
I havent got to the hub end yet, i had the idea that i could create a modified dust sheild with the ducting exiting there, with maybe some right angle off the back to allow for clearance but that will need some more investigation.
I hadnt even considered different brake types either which is especially short sighted as im in the process of upgrading. But its not going to be a fast process anyway an the good thing about digital design and 3d printing is that its easy enough to modify and change things.
Right now im focused on the intake side and was planning on replacing the current foglight panel with a proper duct, with the possibility of having the intake on the left side split to provide fresh air to an induction kit for example.
Issue is that there are a few obstructions directly behind the bumper there so the intake will have to snake its way around those, again another advantage of 3d printing, but no so easy on the design side.
Anyway like i said, nothing will be ready soon but i will probably make a thread here once i have something more solid to show for my work and to get some feedback from everyone.
bobby_fodge:
I had that ECS pcv hose and it collapsed when the engine ran. Stuck the original plastic one back on and kept a spare for when it gets brittle and cracks.
Clarkj93:
--- Quote from: Marticus on May 29, 2023, 10:10:09 pm ---Good information there thanks, thats a cool product as well.
I havent got to the hub end yet, i had the idea that i could create a modified dust sheild with the ducting exiting there, with maybe some right angle off the back to allow for clearance but that will need some more investigation.
I hadnt even considered different brake types either which is especially short sighted as im in the process of upgrading. But its not going to be a fast process anyway an the good thing about digital design and 3d printing is that its easy enough to modify and change things.
Right now im focused on the intake side and was planning on replacing the current foglight panel with a proper duct, with the possibility of having the intake on the left side split to provide fresh air to an induction kit for example.
Issue is that there are a few obstructions directly behind the bumper there so the intake will have to snake its way around those, again another advantage of 3d printing, but no so easy on the design side.
Anyway like i said, nothing will be ready soon but i will probably make a thread here once i have something more solid to show for my work and to get some feedback from everyone.
--- End quote ---
Duct3d have a product for the fog light hole, it looks decent quality. https://www.duct3d.co.uk/shop/p/vauxhall-astra-h-vxr-foglight-adapters-in-black-53y3f-xdwg2-4r3fk
The real challenge is getting it to the centre of the disc and not the disc face while still clearing the drive shaft, it is going to require some funky looking reducing cylinders welded to some sort of bracket I think so that's why I kinda given up on that idea. If my current idea is not enough I'll probably just install an additional set of ducts.
You can definitely heat up the washer bottle and bend it out the way and also the horns brackets they are mounted to are easy to modify with a hammer to allow you to re-position them out the way.
I've actually today ditched my intake duct today, don't think its required. After reading up on some aerodynamics stuff lately the oem intake slot is in a high pressure zone already so adding another duct probably just adds drag and nothing else. But if you just like the look/idea of it then I won't judge :grin:
Clarkj93:
--- Quote from: bobby_fodge on May 30, 2023, 12:09:02 pm ---I had that ECS pcv hose and it collapsed when the engine ran. Stuck the original plastic one back on and kept a spare for when it gets brittle and cracks.
--- End quote ---
I've heard that happen on others before but I definitely believe it could happen on the ECS ones too.
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