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Moderated by: Greg Fletcher |
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Reversal of fuel rail? | Rate Topic |
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Posted: 10-22-2016 04:11 am |
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1st Post |
qwerty Member
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Is there any reason why we couldn't disconnect the fuel rail and rotate it it 180^ so the fuel line enters at the rear and terminates on the front carb? This would give a much cleaner look. Making sure to keep the angled spigot in to the carb so as not to cause a venturi effect on rear carb. May also need a 90^ elbow at the rear... Attachment: Fuel-Hoses1.jpg (Downloaded 99 times) Last edited on 10-22-2016 04:15 am by qwerty |
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Posted: 10-24-2016 11:19 am |
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2nd Post |
MikeIsotech Member
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I did something similar with mine but brought it up via a small glass filter between the (dellorto) carbs. Looks much better and got rid of a lot of extra plumbing.
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Posted: 10-24-2016 11:43 am |
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3rd Post |
qwerty Member
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Thanks Mike, Just wondering if there was a reason besides production line that had it that way.
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Posted: 10-24-2016 12:19 pm |
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4th Post |
MikeIsotech Member
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I couldn't work out a reason. In fact I thought that the original was potentially less safe due to the longish pipe runs. My version is more secure I think.
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Posted: 10-25-2016 01:18 pm |
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5th Post |
Brett Gibson JH5 20497 Member
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Fluid dynamics come to mind when changing fluid flow paths. The more fittings and types of fittings, you create resistance, resistance reduces flow volume (not pressure). Also type of flow, laminar flow is what you are looking for, nice and steady with no turbulence. So whats that mean for your trusty JH, probably not much if anything, but if your running full throttle going 100 mph plus and need all the volume so it won't break up, will you still have it ?? again probably, but that would be the true test. Brett
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Posted: 10-27-2016 05:31 am |
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6th Post |
qwerty Member
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Thanks Brett, valid points. This is why a simple swap from front to back wouldn't be ideal. removing the fuel entry at the front carb and then unbolting the assembly of the remaining banjos and rail then rotating it 180 would be best. From what i can see (on a RHD JH) is that the line could be routed nicely with minimal sharp bends, well no more than normal... To do it in a nice flowing route i'd have to trim back or bend the hard fuel line that enters the bay fron the underbody a bit which is why i'm hestiting on it. Another thought crossed my mind that when under heavy acceleration the fuel may be starved if entering at the rear engine due to inertia?? Routing into the front carb in a nice long arc would help balance vectorial weight of the fuel in the line. I admit i might be clutching at straws here. I may just leave it as is and try not to look at it too much as it messes with my OCD haha
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