scootz
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| posted on 9/4/10 at 06:05 PM |
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Fuel rails... V8
Evenin all...
I used Hayabusa TB's on the RS4. These don't have a fuel return and I'm struggling to afford fancy double-ended billet ones!
Is there anything stopping me from using the standard ones as per the following diagram? Surely the regulator would ensure that there was a constant
pressure 'upstream'?
[img][/img]
It's Evolution Baby!
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r1_pete
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| posted on 9/4/10 at 06:14 PM |
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Should be fine, all you're doing is regulating the pressure in the rails....
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scootz
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| posted on 9/4/10 at 06:16 PM |
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Cheers Pete... so what makes double-ended fuel rails so attractive? Neatness?
It's Evolution Baby!
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matt_claydon
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| posted on 9/4/10 at 06:17 PM |
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It'll be fine, but FPRs usually only have inlet and outlet. Your setup is more likely to look like this:
 
Rescued attachment Clipboard02.jpg
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scootz
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| posted on 9/4/10 at 06:26 PM |
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Thanks Matt... that makes sense!
It's Evolution Baby!
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scudderfish
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| posted on 9/4/10 at 06:32 PM |
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quote:
Originally posted by scootz
Cheers Pete... so what makes double-ended fuel rails so attractive? Neatness?
It means you always have fresh fuel in the rails and are less likely to suffer from vapourisation with a hot engine.
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scootz
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| posted on 9/4/10 at 06:36 PM |
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Thanks! What's the knock on effect in real-world use?
It's Evolution Baby!
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omega0684
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| posted on 9/4/10 at 06:44 PM |
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don't the Hayabusa rails have FPR's at the end of the them? (my R6 iTB'd did) isn't it usually carb rails that don't
have returns?
I love Pinto's, even if i did get mine from P&O!
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scootz
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| posted on 9/4/10 at 06:50 PM |
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Nope... just the one in / out.
It's Evolution Baby!
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stevebubs
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| posted on 9/4/10 at 06:52 PM |
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can you not tap the end of the 'busa rail?
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stevebubs
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| posted on 9/4/10 at 06:58 PM |
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Fuel Rail Supplier..
http://www.americanv8engines.co.uk/shop/product_info.php?
cPath=13_16&products_id=85
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scootz
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| posted on 9/4/10 at 07:10 PM |
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Thanks for that Steve!
It's Evolution Baby!
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clairetoo
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| posted on 9/4/10 at 07:58 PM |
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Slightly cheaper supplier LINKY DINKY DOO DAH
Even if you only buy the minimum quantity , it's still cheaper than buying it in England 
*postage from the states last time I bought some was just over £20 for three feet
[Edited on 9/4/10 by clairetoo]
Its cuz I is blond , innit
Claire xx
Will weld for food......
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bimbleuk
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| posted on 9/4/10 at 08:33 PM |
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The Corvette for example with the LSx V8 series of engines have a combined filter/FPR mounted by the fuel tank. Then a single line goes forward to the
fuel rail.
I'm using one of these on an LS1 I'm installing in an RX7. You can get them for about $40 in the states but you will also need some
corresponding GM quick connectors to attach the hoses.
Link to some details about it
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