I know there are plenty o' threads about the possible benefits of the spacers and even a few positive installs (or at least perceived) and I have been on the fence about buying one (I know, I know, but my argument is if you add up a bunch little things it only seems logical that SOME improvement is to be had, even if only over stock).
Anyway, I just dropped in the BBK 73mm throttle body this afternoon (and no, there was no earth shattering reaction but keep my above point in mind, that with headers, air filters, coils, etc. there is power to be gained short of a tune which is my goal right now, and look at that size difference has to help??) and all performance issues aside, I noticed something that has me scratching my head.
If you look at the intake manifold tube BEHIND the throttle body, it has fins that I am guessing straighten the air out before it enters. I know the concept behind the spacers is to create the venturi effect (to swirl the air making it have some benefit) but my question is, if the space is BEFORE those fins (as I believe it is) wouldn't those fins cancel any effect the spacer-venturi has??
Almost seems as if Ford was one step ahead of aftermarket products in this one..
Guess I can't add photos yet, how about this:
Peace out 'ombres