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Maniflow inlet manifold thoughts
Posted: Sun Apr 12, 2015 4:51 pm
by Cheeser
I have a maniflow inlet manifold which is currently used with 2 x hif44 (1 3/4inch) SUs. I intend to use this manifold on a different engine but using Hif4s (1 1/2inch) SUs, what is anyone's experience and/or thoughts on the slight "step" going from 1 1/2 carb to 1 3/4 manifold? Thanks for any advice that you are able to give.
Re: Maniflow inlet manifold thoughts
Posted: Sun Apr 12, 2015 6:32 pm
by GraemeC
Your proposed set up is exactly what I use and don't have a problem. I did use 1" long x 1.5" bore plastic (phenolic?) isolator blocks and ported these out so they were graduated from 1.5" to 1.75"
Re: Maniflow inlet manifold thoughts
Posted: Mon Apr 13, 2015 6:05 am
by Cheeser
Thanks for that,I was just considering if it was best to do as you have or whether to just leave the step.