ITT you may discuss the need for a dual feed fuel rail
I'd love to save some cash on fittings and do a single-feed style rail with my M-tuned rail. Do I really need to feed from both sides?
These pics suggest that #2 and #3 were hotter, I'm not sure if it's a coincidence considering the feeds are near # 1 and #2: https://lh3.googleusercontent.com/-3...0/IMAG0084.jpg https://lh6.googleusercontent.com/-U...0/IMAG0085.jpg https://lh4.googleusercontent.com/-R...0/IMAG0086.jpg [/img]https://lh5.googleusercontent.com/-eoJrLZZF5rU/TpbgfG3zefI/AAAAAAAAAds/UnYvGJtCU7o/s800/IMAG0087.jpg[/img] What do you gays think? |
Been proven time and time again that there's no difference
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Originally Posted by 18psi
(Post 791762)
Been proven time and time again that there's no difference
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the problem i see is making the assumption that under the boost, those cylinders are running hotter. what you're looking at is the evidence of what was happening while cruising at low load for hours, weeks, months, because, that is mainly what you do. to be able to tell what was happening under a heavy load, you would have to start with scrubbed clean combustion chamber valves, pistons, plugs, etc.... then start it, run the track hard and cut it off as you pulled in the pits. then pop the head off and have a look see. it could be said that if it's happening while cruising (leaner in 2&3) it's probably the same under load, but that's just not always the case. the flow of fuel and air @ 15psi wot in 4th, is drastically different than at 15% throttle, in vacuum, cruising in 6th
it'd be nice to have if your made of money, but i don't believe it's necessary at your planned power levels. |
What about intake manifold or cylinder head flow being uneven?
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Originally Posted by hustler
(Post 791760)
Do I really need to feed from both sides?
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Originally Posted by hustler
(Post 791786)
You may now explain the uneven cylinder temps.
Originally Posted by chpmnsws6
(Post 791818)
What about intake manifold or cylinder head flow being uneven?
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corollary discussion:
what are the benefits of an aftermarket fuel rail besides lighter wallet? |
It looks cool. Impresses the hell out of ignorant people.
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+1 thats about it
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Originally Posted by hustler
(Post 791786)
You may now explain the uneven cylinder temps.
Its all assumptions. |
Originally Posted by rleete
(Post 791975)
It looks cool. Impresses the hell out of ignorant people.
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(Posting from my phone.)
Originally Posted by hustler
Originally Posted by rleete
(Post 791975)
It looks cool. Impresses the hell out of ignorant people.
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Originally Posted by rleete
(Post 791975)
It looks cool. Impresses the hell out of ignorant people.
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Originally Posted by y8s
(Post 791961)
corollary discussion:
what are the benefits of an aftermarket fuel rail besides lighter wallet? When Tim built me my .500"ID stainless rail, we were less worried about dual feed and more worried about making the ID as big as possible. If I ever redo fuel lines, I will probably cap my 2nd feed and just do a single feed/return. |
Originally Posted by hustler
(Post 792034)
It also fits on a 99 engine with a stock FPR and was readily available.
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Cool, I'll save a lot of money. Not enough for an AFPR from Fuel Lab, but enough to take your slore girlfriends out to my apartment and watch them clean my penthouse apartment.
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I think everyone is looking at this the wrong way. Cylinder heat is a function of the heat generated and the heat dissipated. It seems unlikely that fueling is causing any real difference in cylinder temps, so could it be heat rejection differences? I assume you have rerouted the coolant flow, and put in a properly beefy cooling system? In essence, why would those cylinders reject less heat than the others?
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What about the headgasket/coolant reroute complifucked issue? Where sometimes a reroute was good and sometimes it wasn't?
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Originally Posted by Faeflora
(Post 792578)
What about the headgasket/coolant reroute complifucked issue? Where sometimes a reroute was good and sometimes it wasn't?
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Originally Posted by gaius49
(Post 792542)
It seems unlikely that fueling is causing any real difference in cylinder temps
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Originally Posted by Faeflora
(Post 792578)
What about the headgasket/coolant reroute complifucked issue? Where sometimes a reroute was good and sometimes it wasn't?
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Right that thing. I have an 01+. With a reroute.
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Originally Posted by Faeflora
(Post 792733)
Right that thing. I have an 01+. With a reroute.
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Originally Posted by spoolin2bars
(Post 791798)
the problem i see is making the assumption that under the boost...
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Originally Posted by Mobius
(Post 793228)
With your 01 head gasket? If so you have impending doom. You need to put the 94-00 head gasket (BP26-10-271) onto the car or take off the reroute - your front cylinders will be seeing very little coolant.
Please someone confirm this. I really don't want to take apart my engine. |
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