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BR
Join Date: Oct 2008
Location: Santa Barbara, CA
Posts: 11
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Flexible Injector Lines?
I've been seeing folks use flexible injector lines to replace the OEM ones. Does anyone have any information on where to get them? My car is a 82 3.0 SC.
Thanks!
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82 911SC Targa 99 540i |
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Senior Member
Join Date: Feb 2000
Location: Lacey, WA. USA
Posts: 25,310
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Lots o' guys prefer the steel ones you already have. Me, for one.
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Man of Carbon Fiber (stronger than steel) Mocha 1978 911SC. "Coco" |
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Registered
Join Date: Feb 2006
Location: Ontario Canada
Posts: 2,947
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take them off a 78 or 79 SC
![]() When I pulled off my CIS to refurb it they were a dream to work with over worrying about stiff lines that could kink , fracture, or just plane get in the way ..
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1976 Yamaha XS360 ( Beats Walkin') 1978 911 SC Targa ( Yamaha Support Vehicle ) 2006 Audi A4 2.0T (Porsche Support Vehicle ) 2014 Audi A4 2.0T Technik (Audi Support Vehicle) |
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BR
Join Date: Oct 2008
Location: Santa Barbara, CA
Posts: 11
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Thanks...I guess I should have asked what are the pros and cons for flexible v. steel lines. The flexible look cleaner to me and give more working room but I wouldn't sacrafice that for performance.
I there a difference or is it like being a ass or breast man, just personal preference?
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82 911SC Targa 99 540i |
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Almost Banned Once
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My 78 has black plastic lines... No problems with them at all in the more than 10 years I've owned the car.
That's impressive considering the car's 31 years old. I always thought it would be cool to replace them with clear racing style plastic lines but never got around to it. At some point I'll probably go after market EFI and throttle bodies so they'll be redundant anyway. (looking for better fuel economy)
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- Peter |
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Registered
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Plastic lines MELT. gas everywhere then FIRE.
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1974 sahara beige 911 targa 1982 chiffon 911sc 1985 prussian blue metallic carrera |
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I got mine from McMaster-Carr for flexible lines - black nylon tubing. Heat resistant up to 300f.
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HBF |
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Senior Member
Join Date: Feb 2000
Location: Lacey, WA. USA
Posts: 25,310
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Yes, personal preference. Like breast versus ass. For testing flow volumes, the metal lines are a LITA since they have to be disconnected in order to be moved.
But they are more robust in other ways. They don't melt. They don't fail but then, the plastic ones seem pretty reliable also. If they don't get bent or otherwise damaged, they would outlast the rest of the car.
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Man of Carbon Fiber (stronger than steel) Mocha 1978 911SC. "Coco" |
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Registered
Join Date: Aug 2005
Location: redwood shores Ca.
Posts: 186
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metal lines are the way to go IMHO. You can order them from an authorized Porsche dealer. They are a direct replacement for the 30+ year old parts....think about it,
"I never had a problem...till my 911 burned to the ground go figure I had the lines on there for 30 years and poof one day they failed, go figure." In 2005 the 6 lines cost me about $275.00 for Carlsen Porsche here in the SF bay area, |
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Recreational Mechanic
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Not sure what the advantages are, but early SC's had flexible lines, then after 1980 they went to steel lines....maybe for a good reason??
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P Cars: 2022 Macan GTS / One empty garage space ---- Other cars: 2019 Golf R 6MT / 2021 F-250 Diesel / 2024 Toyota GR86 6MT ---- Gone: 1997 Spec Boxster Race Car, 2020 GT4, 2004 GT3, 2003 Carrera, 1982 911SC, 2005 Lotus Elise and lots of other non-Porsches PCA National DE Instructor #202106053 / PCA Club Racing / WRL Endurance Racing |
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Registered
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Melting Point........
The melting point of the flexible (material) fuel lines is way too high for the engine temperature to melt it down. Even an over-heated engine at 275°F will not even come close to the transition glass temperature (Tg) of the plastic material. The cause of fire is due to leak/s in the fittings not on the fuel hose per se. The heat generated by the internal combustion engine is not sufficient to melt the 'plastic hoses' unless there is FIRE already in the engine compartment. It should have been stated as "Gas everywhere then FIRE. Plastic lines MELT". . Tony Last edited by boyt911sc; 10-08-2009 at 07:31 PM.. |
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