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1982 928 us
 
Join Date: Mar 2008
Location: NH
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vacuum hose 1/8qty 3/16qty

would you say 5-6 ft of both is enough would i be too close its too much or would need more followed danglerb here there and everywhere routing post about how much is used just replacing need no T or rerouting

meaning smallest and next size up the measurements could be metric but i measured fraction

Old 04-20-2009, 11:46 AM
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I bought a kit from Roger, as well as some silicone tubing from another vendor, used the kit from Roger with just a couple short lengths of the silicone tubing as needed.

Roger's kit uses Mercedes fittings for 90 degree, T, etc. one Porsche multilegged thing, and the rest is thin nylon hardline. I think its the better way to go, looks factory, installs easy.
Old 04-20-2009, 11:53 AM
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Also Carl has a Silicone Vacuum Line kit, but I kinda cheated and used his measurements and bought the tubing elsewhere. There are lot's of different sizes of vacuum lines, so one size isn't going to cover all lines.
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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior **SOLD**
Old 04-20-2009, 12:18 PM
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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior **SOLD**
Old 04-20-2009, 12:21 PM
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Here's the sizes you will need

10 ft of 3mm silicone hose
5 ft of 6mm silicone hose
2 ft of 10mm silicone hose
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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior **SOLD**
Old 04-20-2009, 12:27 PM
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vacuum lines

On that note, I bought a bunch of vacuum lines at autozone just to get me going with the idea that I would look around for something better when I had more time. The autozone ones don't feel like they can hold up to a lot of heat and vacuum but seem to be doing the job for now. I haven't necessarily noticed any issues at this point but think they could be collapsing at certain times. I'm guessing the silicone ones are much more durable?????

BTW, I like the blue accent.
Old 04-21-2009, 03:14 AM
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Yeah, the Silicones are pretty thick. It would be very difficult to collapse them. They come in all colors, so you can go Black if you want the stock look.
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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior **SOLD**
Old 04-21-2009, 05:02 AM
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Factory used hard lines and rubber bends and couplers, its just a much cleaner install IMHO.

Question you might want to ask yourself is how would you know if the vacuum lines were collapsing or flowing much less than desired?
Old 04-21-2009, 11:34 AM
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1982 928 us
 
Join Date: Mar 2008
Location: NH
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thanks got er done inch by inch for footer by footer job.

just to note had i know colors mmm would have got purple

just straight up blk

Old 04-25-2009, 11:47 AM
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