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 Importance of Indexing N&S Inlet Window with Fuel Inlet? 
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Joined: Sun Jun 12, 2016 4:32 pm
Posts: 5
I wanted to get input on how important, if at all, you feel it is to set the fuel inlet window on the N&S where it is lined up with the fuel inlet feed into the fuel bowl? I have attempted to do it before thinking that there may very well be some value to it, but find it hard to ever really get set correctly. Seems like when I get the the fuel level set where I really want it that it ends up rarely ever perfectly lining up with the N&S inlet window. I end up then just leaving the sight window on the N&S offset as feel it is more important to have the fuel level more optimized. Thoughts?

Mon Jun 13, 2016 5:22 pm
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Joined: Fri Feb 08, 2013 2:37 pm
Posts: 1744
I don't think it matters. Float level on the other hand ....... matters. I guess if you really want to you could line up the window and bend the float to tweak the final level, or change the fuel pressure to change the liquid level after you set the window alignment.

It is most important to orient your car perpendicular to the local magnetic declination and compensate the fuel specific mean vapor pressure to the regional gravity anomaly (and have 36 Hour Protection).

On a serious note, Mark has done some inlet N&S and float bowl testing and banjo has video of his bowl testing, they may have something to say about this.

banjo's video

Tue Jun 14, 2016 2:02 am

Joined: Sun Jun 12, 2016 4:32 pm
Posts: 5
Yes, that local magnetic declination can be difficult to obtain perfect perpendicular alignment on a consistent basis. :)

Thanks for the link to the video's of the bowl testing as that was interesting. One of the comments that Banjo made was regarding the importance of keeping the fuel level above the window on the N&S to help reduce the amount of foaming. It would be interesting to perform the testing with the BLP bottom feed N&S to see what improvement might be seen as this is one of the primary benefits claimed from their design.

Tue Jun 14, 2016 9:18 pm
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