Quote:
Originally Posted by Wil Ferch
I've been involved in gaseous ( air) flow as well as liquid flow thru pipe and such from an engineering perspective....and can offer these points of opinion.
1.) A 90 degree elbow has more resistance than you think....by forcing a "bend" in the airflow that wants to go straight.
2.) Silicone tubing, even if double walled with a wire in-between the 2 layers, to offer the smoothest airflow on its internal surface, has considerable resistance compared to (say) a smooth solid internal surface....like the inside of a PVC pipe or polished stainless pipe or tubing. Not saying to use either PVC or stainless...simply identifying other surfaces may greatly improve what you have. Like your intake trumpets themselves.
Unless you have some sort of lab equipment to test your system.... or unless you can determine that what you did was basically correct , like checking against technical papers or academic textbooks on fluid flow in piping systems....I think you are only feeling a placebo effect on your changes.....
That all said.. I admire your inventiveness and packaging prowess.....
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Wil, maybe you can help me. I came up with a number 150 litres/second that the engine is flowing at 6K rpm. if this is going thru 6 runners with a choke point ( intake port ) of 35mm, at what speed is the air traveling in each runner? in MPH. I poked around online but can't find a formula to use. any thoughts?