 porportioinal valve --> T-junction, anyone done it got pics? |
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| opera guy |
 Aug 14 2004, 12:50 PM
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#1
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Member  Group: Members Posts: 337 Joined: 28-June 04 From: upland, ca Member No.: 2,268  |
im thinking about removing the porportioning valve and putting in a T junction instead, i figure, less components, less trouble.
has anyone done it? can you post some pics? all this stemmed from wanting to put in steel braided brake line (IMG:style_emoticons/default/blink.gif) |
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| SirAndy |
Aug 14 2004, 01:01 PM
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#2
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Resident German Group: Admin Posts: 41,623 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(opera guy @ Aug 14 2004, 11:50 AM) has anyone done it? can you post some pics? easy as pie ... (IMG:http://www.sirandy.com/pix/914/2003.04.14/IMGP1714.jpg) btw. why do you want to do this? i'm asking because if your brakes front/rear are still stock, this might not be a good idea. the stock brake bias is there for a reason ... (IMG:style_emoticons/default/wink.gif) Andy |
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| opera guy |
Aug 14 2004, 01:13 PM
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#3
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Member Group: Members Posts: 337 Joined: 28-June 04 From: upland, ca Member No.: 2,268 |
in a perfect world, yes i would upgrade the front brakes.. if i got rid of the Proportion valve with stock brakes, there wold be more pressure to the rear (than stock)?
is that the reason? man, you're pretty darn fast whith them pics (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/clap56.gif) |
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| ArtechnikA |
Aug 14 2004, 01:24 PM
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#4
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
QUOTE(opera guy @ Aug 14 2004, 11:13 AM) if i got rid of the Proportion valve with stock brakes, there wold be more pressure to the rear (than stock)? is that the reason? yup - back brakes locking first is bad news (e.g. - "handbrake turn"). put some stuff in the front trunk, full tank of gas - not hard to get a decent front weight bias - or anyway - more front... it can be argued that Porsche was too conservative with front brake bias, and that an experienced driver who can apply brakes gently and smoothly (minimising weight transfer) can deal with more rear brake bias. just be careful ... |
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| watsonrx13 |
Aug 14 2004, 01:29 PM
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#5
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Advanced Member Group: Members Posts: 2,734 Joined: 18-February 03 From: Plant City, FL Member No.: 312 Region Association: South East States |
Andy, besides replacing the proportioning valve with the T-junction, what else would you recommend?
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| SirAndy |
Aug 14 2004, 01:57 PM
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#6
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Resident German Group: Admin Posts: 41,623 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(watsonrx13 @ Aug 14 2004, 12:29 PM) Andy, besides replacing the proportioning valve with the T-junction, what else would you recommend? bigger brakes (IMG:style_emoticons/default/biggrin.gif) after i upgraded to mid '80 carrera on all 4 corners, i couldn't get the rears to do any of the work, that's where the "T" came in handy. it really depends on your setup. this is what i have brake-wise all around: Attached image(s) 
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| J P Stein |
Aug 14 2004, 04:50 PM
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#7
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
One of these. Wilwood porp valve, but there's really no reason to round file the stock valve. I just like to post pix (IMG:style_emoticons/default/biggrin.gif)
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| watsonrx13 |
Aug 14 2004, 04:57 PM
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#8
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Advanced Member Group: Members Posts: 2,734 Joined: 18-February 03 From: Plant City, FL Member No.: 312 Region Association: South East States |
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| J P Stein |
Aug 14 2004, 05:07 PM
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#9
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
Go ahead, pic my nits....I can take it.
Wilwood adjustable proportioning valve. |
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| watsonrx13 |
Aug 14 2004, 05:25 PM
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#10
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Advanced Member Group: Members Posts: 2,734 Joined: 18-February 03 From: Plant City, FL Member No.: 312 Region Association: South East States |
I know you've got 'thick skin'.
I just figured you would have blamed it on the original author, the title is QUOTE porportioinal valve --> T-junction |
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| J P Stein |
Aug 14 2004, 05:29 PM
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#11
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
I cain't speel worth spit.....and doan ak me what a "nit" is niether. (IMG:style_emoticons/default/blink.gif)
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| URY914 |
Aug 14 2004, 05:30 PM
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#12
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I built the lightest 914 in the history of mankind. Group: Members Posts: 120,426 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
Andy,
Where did you get your T fitting? Paul |
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| J P Stein |
Aug 14 2004, 05:41 PM
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#13
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
That pic reminds me of one of the "issues" that pop up when doing the conversion. You'll note there is no room for the stock "prop valbe" with the Velious bulkhead mount...IIRC......dunno if Rich took care of that with his version.
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| SirAndy |
Aug 14 2004, 06:02 PM
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#14
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Resident German Group: Admin Posts: 41,623 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(URY914 @ Aug 14 2004, 04:30 PM) Andy, Where did you get your T fitting? local vw-bug shop ... |
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| opera guy |
Aug 14 2004, 06:52 PM
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#15
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Member Group: Members Posts: 337 Joined: 28-June 04 From: upland, ca Member No.: 2,268 |
QUOTE(watsonrx13 @ Aug 14 2004, 03:25 PM) I know you've got 'thick skin'. I just figured you would have blamed it on the original author, the title is QUOTE porportioinal valve --> T-junction soly, me no ame-li-ken. yu wan flied wan-ton wid dat? (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/biggrin.gif) |
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| blabla914 |
Aug 15 2004, 06:13 PM
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#16
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I like primer Group: Members Posts: 321 Joined: 1-March 04 From: Connecticut Member No.: 1,740 Region Association: None 
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Hey all you after-market proportioning valve people. I mounted mine like this. It works great and it's really easy to do. I've done 3 cars like this now and it has been just as easy on all 3.
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| blabla914 |
Aug 15 2004, 06:21 PM
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#17
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I like primer Group: Members Posts: 321 Joined: 1-March 04 From: Connecticut Member No.: 1,740 Region Association: None
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Ok. Here's what's underneath. Make a simple L bracket for your valve. Make sure it will end up right infront of the package tray. You need to disconnect your main brake line that runs from the front to the firewall at both ends. Pull it forward and snake it through the hole right behind the cross member. My tunnel top has a lot of holes in it, but that isn't necessary for this job. I did that when I had a clutch tube issue. Next fab up a line from the prop valve back to the union. I think I used an 18" piece of line, but check that yourself. Make sure you use some gasket strip to prevent chaffing of the line on the edges of the tunnel. That T is used on the rear of a beetle. Pick a year, I think they all use it.
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