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Go Back   TDIClub Forums > VW TDI Discussion Areas > TDI Power Enhancements

TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old March 23rd, 2005, 23:33   #1
onehotspud
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Default DIY Dawes Device

I've made my own Dawes Device. I didn't want to wait for one to arrive in the mail. I'd post a picture, but my server isn't working right now. It looks and acts just like the Dawes Device at half the cost and one tenth the wait. Has anyone else done this?
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Old March 24th, 2005, 04:52   #2
Growler
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Default Re: DIY Dawes Device

please email pics/instructions to:
ibbruck(at)excite(dot)com I will post them for you.

you could also login to the picture server here and host them yourself.

I am sure others would love to see what you have done
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Old March 24th, 2005, 05:05   #3
juli0s
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Default Re: DIY Dawes Device

i just got my Dawes a few weeks ago,

my friend tells me its just a couple of plumbers fixings bolted together....

i'd be interested to see what you've used !
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Old March 24th, 2005, 06:55   #4
onehotspud
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Default Re: DIY Dawes Device



And, you're right. It's just some plumbing fittings. The relief valve is Grainger part #5Z763. The nipple fitting on the one end and the copper tubing were both from a mom & pop hardware store.

The problem with this is the nureled end. All that is there is a hole. I thought there might be threads to screw a fitting in to. There isn't. Thus the reason for the copper tubing. I found some that was just big enough to slide in tightly. I then used glue to seal things up.

***EDIT: The glue didn't hold that long. I ended up soldering the copper tubing in.

I'm not trying to take money away from the guy that's selling these or make anything off it. His website said 10-15 days to recieve the product. I don't want to baby my car for that long. My turbo vanes might get stuck by then.

Thank you to brucep for finding the part in this thread. I can't take credit for all the work.

Last edited by onehotspud; April 1st, 2007 at 20:29.
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Old March 24th, 2005, 08:51   #5
je
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Default DIY Dawes Device

I made my own with plumbing fittings and a spring and ball from a surplus store. It took work to machine out the centre to fit the spring and provide a good seating surface for the ball (not a lot, but a lot of trial and error). It's also tricky to get a spring that works well, and to adjust the inside length of the barrel - but it does work, if not that well. If you're good at machining, it would be better.
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Old April 1st, 2007, 20:30   #6
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Updated a bit.
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Old April 2nd, 2007, 19:48   #7
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Default my valve

These are some pics of my valve.
This one is an exploded view.
The parts are all from Home Depot except the ball bearing. The cap screw goes into a barbed fitting that I cut off and tapped to the correct size. After I had the parts it took 10 minutes to make. The ball bearings are from a bicycle shop (5/16 I think)

Exploded view:

Threaded fitting:



Ball bearing in seat:



Assembled view:

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Old April 3rd, 2007, 04:44   #8
arvina
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how much for all those parts?
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Old April 3rd, 2007, 16:20   #9
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Probably $10
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Old August 5th, 2007, 19:13   #10
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i like the looks of this one!
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Old August 7th, 2007, 20:59   #11
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how is it working?
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Old March 18th, 2008, 18:10   #12
Diesellover Andy
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Talking Fantastic valve!

This is it!Simply fantastic!
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Old April 21st, 2008, 23:40   #13
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Default

To bring this up again, I have a quick question:

Is this thing venting pressure from the intake (post turbo) into the vacuum line to the trubo actuator? I want to be sure before trying it.
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Old April 22nd, 2008, 05:53   #14
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yes, it sends the extra boost pressure into the VNT actuator vacuum line between the N75 & the VNT POT to force the Vanes open inside the turbo, this reduces boost.
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Old June 22nd, 2009, 12:00   #15
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Hey Alex (canadiaveedub) could you post a list of the fitting sizes you used to make your MBC? A size list would greatly help searching through the countless bins. Thanks!
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