Quote:
Originally Posted by dwomby
. it's only managing 2.5PSI !!!!!
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I don’t understand why you would need any more - that’s around the same pressure as is produced by the SU pumps on the later models. What you need is volume, which is not the same as pressure. Bear in mind that the Carter Carb literally just dumps the contents of the float chambers straight into the manifold on kickdown and you’ll see what I mean.
I found the SU double ended pump that I used to replace an extremely noisy Facet to excellent. Quiet in that it was inaudible with the engine running, even at tickover, but just loud enough to give you that reassuring tick tick as you turn the ignition on. Mine did me 20 years and never gave me any trouble at all.