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-   -   My attempt at a plenum (https://vansairforce.net/community/showthread.php?t=76759)

rockwoodrv9 05-20-2018 08:10 PM

Quote:

Originally Posted by cdeerinck (Post 1261296)
Chris - How do you handle access to your Oil dipstick and cap?

On my plenum, a BillL special, the oil dipstick is not in the plenum area. I believe in his photo the dipstick is behind the large orange ducting. At least on a O-320, that is how it works. Here is mine overall, but does not show the oil dipstick. I will see if I can find a picture of it.


mv031161 05-21-2018 10:27 AM

Quote:

Originally Posted by Chkaharyer99 (Post 1138084)
Chris,

I have an RV-8 and was researching plenum ideas. I'm mostly interested in ideas like yours that used the stock Vans cowl inlets.

It's been a few years since youve built it. Hows it working? Anything you'd do differently?

Charlie
Chkaharyer99@yahoo.com

I love Plane Porn! Is there an engine installation award category for RV's?

Mark33 05-21-2018 11:01 AM

Quote:

Originally Posted by rockwoodrv9 (Post 1261369)
On my plenum, a BillL special, the oil dipstick is not in the plenum area. I believe in his photo the dipstick is behind the large orange ducting. At least on a O-320, that is how it works. Here is mine overall, but does not show the oil dipstick. I will see if I can find a picture of it.


Man, that?s nice looking work. I also have Bill?s plenum that?ll be incorporated into my build. I hope mine comes out as nice as yours.

Bob Martin 05-21-2018 11:24 AM

Quote:

Originally Posted by rockwoodrv9 (Post 1261369)
On my plenum, a BillL special, the oil dipstick is not in the plenum area. I believe in his photo the dipstick is behind the large orange ducting. At least on a O-320, that is how it works. Here is mine overall, but does not show the oil dipstick. I will see if I can find a picture of it.


Yes, having modified a James plenum to work.........you have done masterful job on this one! congrats.....

flysrv10 05-21-2018 04:46 PM

Quote:

Originally Posted by CMW (Post 578167)
Here's a few shots of my plenum. This has taken forever. I hope it works well.















I wish you would consider at least making the front baffle including the inlets for an IO540. I would be your first customer.

Stewbronco 07-19-2020 06:41 AM

Cowl rings
 
I realize this is old thread ...but where could a guy get those aluminum " cowl rings ? Thanks. Stew stewhansen@shaw.ca

BillL 07-19-2020 11:26 AM

Quote:

Originally Posted by Stewbronco (Post 1447592)
I realize this is old thread ...but where could a guy get those aluminum " cowl rings ? Thanks. Stew stewhansen@shaw.ca

Custom CNC milled, unfortunately. They are pretty aren't they . . . :D

I have been thinking for years about the challenge of mating ducts to the Vans cowl. After looking a some printed RV part porn (Steve Meltons work) I was wondering if some of his carbon material could be used to print some inlets.

Of course, a good design is a prerequisite.

scsmith 07-19-2020 03:42 PM

Yes, the rings are the key. If the OP, who invested a lot of effort into getting those right, would just distribute the CAD model for them, others could step up to machine them (or print them?) and many of us would be eternally grateful.

Kyle Boatright 07-19-2020 03:53 PM

Quote:

Originally Posted by scsmith (Post 1447718)
Yes, the rings are the key. If the OP, who invested a lot of effort into getting those right, would just distribute the CAD model for them, others could step up to machine them (or print them?) and many of us would be eternally grateful.

Seems like making them out of 'glass would be relatively easy. What am I missing?

scsmith 07-19-2020 05:03 PM

One challenge of pre-made rings is that not everyone trims their cowl to the same exact closure along the mating line through the intakes. I suppose whatever you end up would be filled/filed/carved/built up to fit the pre-made rings.


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