Holy cow, this has been a lot of work for such a simple thing. I've devoted probably another 10 hours spread over several days to this since my last entry.

My friend Robert summed up the Van's boost pump installation nicely on his RV6; "When I took that cover off it looked like somebody had shoved a french horn under there"

There are tons of fittings and lines going every which way, and it seemed like there had to be a better way, so I decided to go with the comparably priced EFII boost pump.

Lots of guys have used this pump in all sorts of configurations, but most of them have been a variation of a stack that fits under the Vans OEM "dog house"

I did TONS of trial fitting, line bending, etc. and ultimately came to the conclusion that I'd rather have a clean sheet tunnel cover that didn't stick up so much. and that I could put a couple of drink holders and maybe a fire extinguisher on top of.

To that end, I fabricated a mount out of .050 2024-T3 which attaches to some angle. then the whole thing gets attached to the center two floor stiffeners using the 4 holes and hardware called out on the Vans print. plus two more #8 screws about 4" aft of the fwd holes called out for the lightweight tunnel cover. This is actually fewer holes than are called out on supplemental print for Vans High Pressure Fuel Pump Installation drawing.

The pump & filter just bolt to the tray, the mounts to the floor stiffeners with 4 #8 screws, then a cover made of .040 2024-T3 drops over the whole thing and then transitions into the factory tunnel cover about 8" aft of the cabin heat louvers. The cover also ties into the fuel valve cover. Due to it's shape and all the supporting stuff that it attaches to, everything is very rigid and is plenty strong enough to mount a fire extinguisher or O2 bottle on top of without further internal stiffeners, if I decide to go that route.

The best part is that I still have the empty space under the original cover plate for wire and pitot/static runs.

The entire thing sticks up 2 & 3/8" above the level of the floor stiffeners and I will still hopefully have room to stretch out a little on long flights. About the only down side I see is that I will need to have carpet custom made for that area since it's a different shape than either of the factory configuration covers, but I'm okay with that.

I really wanted to get this wrapped up today, but we're having an end of summer heat wave right now and by mid-afternoon, it was pushing 95 degrees in my garage so I'll come back to this another day and install all the nut plates etc.

Really glad to get this done. I spend way to long on it, but I'm happy with the end result.