im assuming a straight arrow intake tube would have the most unrestricted and lowest turbulence flow to throttle body

but obviously not happening in most engine bays.

which would be better?
a sharper bend at the throttle body and straight pipe all the way to filter
a straight pipe from throttle body and sharper bend before the filter
or an even curve from TB to filter?

 

I'm by no means a math wiz, but from what I've gathered regarding my research into airflow, you want the largest radius bends possible, period. There are a lot of tricks as far as varying pipe diameter before, during, and after a bend that I don't really know enough of off the top of my head to reiterate now, but largest radius bends = better. So basically split the difference at the throttle body and the filter.

 

A single curve from the throttle body to the filter would be the smoothest flow.

How to determine the length of the pipe, the radius of the curve etc would take Dyno tuning to see what works best.

 

 

#2 would be best in those pictures, all else being the same.

 

thats what i was thinking

what about the design in #3
having an extension to a short ram
or even having some kind of bypass valve right at the throttle body to give you that bump right after throttle tip in that you usually see when mounting a filter straight on the throttle body?

i was thinking of using that aem bypass filter on the throttle body with a custom length tuned short ram and the extension similar to #3
wonder if anyone has done anything like that and tested on a dyno.
i might just do it if nobody else tried it

 

Pretty much the best thing you can do for peak power, (that has been dyno proven) is a 3'-4' long tube the same diameter as your throttle body, with as few bends as possible, with bends the largest radius possible, connected to a velocity stack located outside the engine bay on the front of the car.

 

This is my car in street mode, short ram with velocity stack and a filter:





This is track mode. An extra 2ft-ish long 45 degree bend pipe that goes through an old shitty headlight I cut out and painted, with velocity stack and no filter. It only takes maybe 10 minutes to switch out at the track.




Track mode with hood closed: