karlak
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| posted on 15/3/12 at 10:59 PM |
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Braided Fuel line instead of copper
Aside from the obvious cost implication, is there any reason why it would NOT be a good idea to use braided fuel hose for the run from (and return)
the tank to the engine bay ?
MK Indy - 2litre Duratec - Omex 600 - Jenvey throttle bodies - ETB DigiDash2
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loggyboy
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| posted on 15/3/12 at 11:03 PM |
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Rubber (braided or not) doesnt not last as well as copper, both from the inside (exposure to fuel) and outside elements etc.
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karlak
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| posted on 15/3/12 at 11:06 PM |
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quote:
Originally posted by loggyboy
Rubber (braided or not) doesnt not last as well as copper, both from the inside (exposure to fuel) and outside elements etc.
Ahh, I see. So how about the teflon coated stuff ?
http://aeroquip.cc/aeroquipteflonracinghoseandfittingsfbc.aspx
MK Indy - 2litre Duratec - Omex 600 - Jenvey throttle bodies - ETB DigiDash2
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loggyboy
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| posted on 15/3/12 at 11:29 PM |
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Doesnt even mention fuel in the uses of that stuff.
Is there a reason you dont want to use copper/kunifer pipe?
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Autosri
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| posted on 15/3/12 at 11:56 PM |
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I have got braided fuel pipe on my tintop for the nitrous kit and that's Teflon lined and is fine also if you run a seperate fuel cell most use
braided
Does it mention anything in the iva manuals
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loggyboy
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| posted on 16/3/12 at 12:15 AM |
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Some good info/debate here:
http://www.locostbuilders.co.uk/viewthread.php?tid=153126
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Dusty
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| posted on 16/3/12 at 12:16 AM |
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I don't mind running copper down the tunnel where I can't see it as long as it is well supported. I have heard too many stories of
'rubber' fuel hose degrading over 4-5 years. Not sure I would want that happening out of sight. First you would know of it might be fuel
sloshing about in the tunnel.
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snapper
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| posted on 16/3/12 at 06:08 AM |
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For IVA you need proof the braided is of the correct standard.
With standard rubber fuel hose it is stamped on the surface with British or European standards number
Copper is a pipe and accepted without question.
Braided has been questioned in the past.
I fitted what was described as "fuel grade" braided that i was sold at a kit car show just for the run from the copper pipe to the bike
carbs and it rotted in less than 6 months.
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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britishtrident
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| posted on 16/3/12 at 07:50 AM |
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Braided fuel line is prone to unseen chaffing between the outer metal braid and inner hose.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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karlak
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| posted on 16/3/12 at 07:58 AM |
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Thanks guys, lots to think about. IVA is not an issue as the car is half way through an engine other parts change.
I was interested as I like the look of it. I saw it in a BMW "race car" from tank to TB's and it just looked very smart and
professional. I guess the difference is that Race cars will probably be stripped at least once a year and rebuilt.
MK Indy - 2litre Duratec - Omex 600 - Jenvey throttle bodies - ETB DigiDash2
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SeaBass
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| posted on 16/3/12 at 07:59 AM |
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Is this groundhog day?
quote:
Originally posted by SeaBass
quote:
Originally posted by karlak
I know there is a Cost implication, but would the aeroquip type braided hose pipes be OK? I think this is what is used in race cars.
Race vehicles are maintained before and after each event. Fuel lines are regularly replaced and components are dated and "lifed". Also
they frequently run where they can easily be seen.
Modern fuels have some very nasty additives that can damage even the best grades of hose - keep them to a minimum.
IMHO
JC
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karlak
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| posted on 16/3/12 at 08:21 AM |
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quote:
Originally posted by SeaBass
Is this groundhog day?
quote:
Originally posted by SeaBass
quote:
Originally posted by karlak
I know there is a Cost implication, but would the aeroquip type braided hose pipes be OK? I think this is what is used in race cars.
Race vehicles are maintained before and after each event. Fuel lines are regularly replaced and components are dated and "lifed". Also
they frequently run where they can easily be seen.
Modern fuels have some very nasty additives that can damage even the best grades of hose - keep them to a minimum.
IMHO
JC
LoL, I guess it must be. Oops!
I missed your initial reply. Thanks anyway 
MK Indy - 2litre Duratec - Omex 600 - Jenvey throttle bodies - ETB DigiDash2
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motorcycle_mayhem
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| posted on 16/3/12 at 12:02 PM |
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It was me, I'd use metal copper/steel/kunifer/whatever. Your pipe is in the tunnel, it's hidden. Presumably there's a propshaft in
there, if it's a BEC there may well be an oil leakage unit in there too, all manner of detritous, wild animals and other odd items end up down
the tunnel, you may never look in years.... all reasons to go hard line.
Yes, I have flexible stuff in the race car, but everything comes down where the passengers right leg will be in yours. Only real advantage of flexi
(to me, anyway) is the ability to replace the stuff by pulling in the new with the old (in the paddock, in the rain...)
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