Yes to the horizontal induction and curved intake duct to reach the FAB. I understand that. My question is about mating the FAB to the engine. My superior intake has a 4" square forward mating surface where the FAB will mount. Apparently that may not be "standard" to all generic IO-360 installations. I have heard that I may need the RV-14 FAB because it will mate to my intake.
Which FAB will have a 4" square aft end where it mates to the intake?
Clay I think you may be mixing different products/applications. If you have a horizontal induction sump, pazmanyflyer post is correct.
There is no FAB on a standard horizontal setup. Instead you need the "snorkel" and smooth cowl (no scoop), with the air filter cut into to left forward ramp of the baffles behind the prop. The snorkel flange is round to allow clocking to fit your FI Servo bolt pattern. Once the bolt holes are drilled in the fiberglass flange you can trim the fiberglass "circle" to match the "square" servo.
Yes, yes. The Snorkel/FAB arrived today. One glance makes it clear. Yes, the engine end in round, but the central hole matches the central hole in the square mounting surface.
Ok, one more question: How do I put an alternate air source in this thing?
FAB... Filtered Air Box
On an RV, none of them are actually a "box", but it is a term that has been used for aircraft for many decades.
So FAB correctly corresponds to all of the systems sold at Van's.