Cowl and intake mod

[BrianNC]

Originally Posted by Mike S

Maybe, just maybe, it is to accommodate something like this???

Never having built a plane and done anything but fly them, what is that?

[Deems Davis]

The red canister is a unit designed by Rob Bower that serves a combination of purposes.
1. It has a butterfly valve on the intake to allow for RAM air direct into the fuel servo. (increased MP, a mini turbo)
2. With the butterfly shut it acts as an air filter (There is a K&N filter contained within the housing).
3. The plastic discs on the side of the canister open and allow for warm (alternate) cowl air to the servo. Alternate Air

A 3 in 1 solution with performance benefits!

[Mike S]

Well, I have had the cowl back for a while, finally got around to getting a couple of shots to show the difference from a stock cowl.

[Top_prop]

Great thread! Thanks for taking the time to post!

[Mike S]

Originally Posted by Top_prop

Great thread! Thanks for taking the time to post!

Tom, thanks for the kind words.

As of now, I am working on getting all the ancillary stuff -----fuel lines, throttle and mixture controls----to function with the change in fuel servo location.

One problem, the direction of travel for the mixture shaft/arm must be reversed.

Luckily, Don at Airflow Performance says to just send him the unit, he will take care of this at no charge.

Can you say GREAT CUSTOMER SERVICE???

All in all, I am quite pleased with the project so far, and I really like the access to the bottom of the engine with the scoop off (bottom cowl still on).

Much thanks again to Don, and Rod Bower.

[erich weaver]

Mike

are the louvers on the lower cowl standard RV-10 ware or a mod? I assume they are for increased air flow and engine cooling - is this a common issue on the -10 or is this in response to an anticipated need with the engine being used?

just curious

erich

[Mike S]

Erich, they are standard kit units.

Some folks are adding more, but my buddy's plane (painted cowl) has been just fine, now two years in the air.

[Mike S]

Originally Posted by BrianNC

Never having built a plane and done anything but fly them, what is that?

As was stated prior, this is Rod Bowers ram air setup.

It contains a K&N air filter, seen here from the inside.



The two Adel clamps are used to hold the bowden cable that controls the inlet valve.

Here is the valve closed, from outside,



And inside.



And here is it open, again from the outside, and a view from inside the servo unit.





Lastly, this is how the air gets into the unit when the ram air control is closed. These are basically like reed valves in an air compressor, or a two stroke engine.



Hope this helps make sense of things.

More to follow-----

[Mike S]

To continue, the fuel servo has been re-mounted in a horizontal manner.

I believe this is the way Rockets do it--------

To make it all work, you need an elbow, and an adapter to match the throat diameter to the intake hole in the sump.





By the way, that adapter is canted up 5*, your eyes are not fooling you

These are standard parts from Airflow Performance.

Thanks for lookin'

[msausen]

Originally Posted by Mike S

Much thanks again to Don, and Rod Bower.

Deems is the guy that created the new scoop and gave it to Rod to duplicate.

Michael