Quote:
Originally Posted by FlowSpecialist
I should just add one thing I forgot to say about the specific way my bench is set up to deliver accurate results. The downpipe that the test piece sits on is 4" i/d as I mentioned previously and the manometer pressure tapping is at the very top of this. However the downpipe is not just open at the top like most benches. Over it sits a 1/2" thick wooden board with a 65mm diameter hole machined through it and a nicely radiused top edge to the hole. The top of the downpipe is then sealed to the underside of this board and the bore adaptor and head sit on the board over the hole.
Dave
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Hi Dave,
the radius entry is only used when using the orifice plates right? ( it there with the bore adapter in place but not ''seen'' by the moving air then)
the setup sounds a lot like a shear plate/recovery combo used sometimes with 4 barrel carbs. but mounted backwards
cheers