M50 manifold fuel rail

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randomspeedfreak
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Post Sun Oct 09, 2011 3:24 am

which fuel rail should i be using with my m52b28 when i fit the m50 manifold? the m50 or m52?

obviously the m50 fits better but with the outlet being the other end will i encounter problems later?

cheers,
Matt
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260MAF
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Post Sun Oct 09, 2011 9:17 am

You can use either AFAIK. I've used the M52 rail, but you need to make up a couple of small plates/brackets to secure it as it doesn't line up with the fixing points.
e30-EVN
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Post Sun Oct 09, 2011 9:59 am

As above ^ is exactly what I did. Making up the little plates isn't hard and a lick of hamerite black you'd have to look hard to notice them 8)
A 2 door e30 with 8 cylinders, what could be better winkeye :D
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randomspeedfreak
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Post Sun Oct 09, 2011 12:31 pm

my m52 rail really dosent fit though.

ive bent the fuel inlet and outlet pipes a bit, as they were contacting the mani, but the brackets still stop it locating onto the top of the injectors. i might just use the m50 one and a bit of extra fuel hose to the other end of the rail...
Last edited by randomspeedfreak on Tue Oct 11, 2011 9:57 am, edited 1 time in total.
Rallyprep_UK
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Post Sun Oct 09, 2011 12:46 pm

yeah thats what I did speedfreak :cool:
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E30BeemerLad
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Post Sun Oct 09, 2011 12:49 pm

penton08
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Post Sun Oct 09, 2011 4:11 pm

randomspeedfreak wrote:my m52 rail really dosent fit though.

ive bent the fuel inlet and outlet pipes a bit, as they were contacting the mani, and the brackets still stop it locating onto the top of the injectors. i might just use the m50 one and a bit of extra fuel hose to the other end of the rail...



I use the m50 rail with the m50 metal fuel lines under the manifold, It is much easier to get the e30 rubber fuel lines on this way.
DanThe
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Post Sun Oct 09, 2011 4:50 pm

M52 stainless steel rail looks much better and also comes with quick release connectors for the fuel lines :D

Engine bay pic -

Image
penton08
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Post Sun Oct 09, 2011 4:58 pm

m54 fuel rail cover FTW :D I struggle to get to the connectors on the m52, let alone release them quickly :o: