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1. 10:40 AM - Re: Oversized Oil Cooler Installation For IO-390... (ericrv6)
2. 05:12 PM - RV-8A QB Kit - Sell Kit or Partner Wanted to help Complete (Garey Wittich)
Message 1
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| Subject: | Re: Oversized Oil Cooler Installation For IO-390... |
Matt it my be to far gone for you, but I would consider mounting it on the firewall.
If you like I can send you a picture of a customers install on a rv8.
This would also allow you to control the air flow to the cooler better in the winter
with an air controller.
Let me know.
Eric Faires
256-710-6120
www.nonstopaviation.com
eric@nonstopaviation.com
Muscle Shoals, Alabama
On Oct 18, 2009, at 11:37 AM, Matt Dralle <dralle@matronics.com> wrote:
Since the IO-390's a little bigger than the 0-320's and 0-360's traditionally used on the RVs, there have been reports of issues with oil temperatures climbing too high. Marc Ausman has some very interesting findings on his web site http://www.io-390.com regarding his experiences with the IO-390, his RV-7, and some various oil cooler installations he tried. Essentially, it boiled down to using a Steward Warner 10610R oil cooler to keep oil temperatures in a normal range. The problem with the 10610R, however, is that it is a LOT bigger than the stock Van's oil cooler. Mark had trouble fitting it on his RV-7 and I've got even less space on the RV-8.
So, once again, I found myself having the re-engineer to accommodate the IO-390
engine installation. The rear left baffle with the Van's supplied .040" doubler
is sufficiently rigid for the stock oil cooler, but the SW10610R is quite
a bit heavier and also about 1.5 times as wide. Initial fittings looked like
it was going to be a close fit if it would fit at all.
I spent the good part of two full days working on a new design for installing the
SW10610R. I came up with a .063" double that completely shadows the rear baffle
and also ties into the angle on the right of the oil cooler. I emulated
the flow baffles on the stock double by cutting the rear baffle hole slightly
large then bending them back and through the hole in the .063" doubler. I spent
a lot of time carefully measuring and cutting and filing the paired holes
and I'm extremely pleased with the fit and function. I riveted the rear baffle
and the .063" doubler with a matrix of 1/8" rivets at 1" spacing. Probably
went overboard here, but I have to say, it really stiffened up the structure,
so maybe it was worth it.
I orientated the oil cooler such that I was able to catch the mounting screw in
the back of rear cylinder. This will take a huge amount of load off the baffling
components and I'm really glad I noticed that I could use it with just a
little bit of shifting. I also added a 4" long piece of .063" angle cut down
on one side to the center rear baffle picking up the 1/4 mounting screw hole.
This also really tightened up the structure.
I had to file a large half-moon shape out of the right-rear mounting ear on the
oil cooler to clear the engine mount. It is not used structurally on the oil
cooler so no harm done. I opted to use all six mounting screw holes on the oil
cooler instead of the normal four. This also seems to stiffen up the installation.
The oil cooler is sufficiently mounted in toward the centerline such that there
are no clearance issues with the cowling, although there would have been if I
hadn't hogged out such a large half-moon from the oil cooler mount.
The best part of the installation is that the hose fittings are nearly in the stock
location, so I will be able to use the standard hose that come with the FWF
kit. Whew, for once, something works without modification.
All in all, I'm extremely pleased with the oil cooler installation. It is very
solidly mounted, still uses the stock hoses, and clears the cowling.
There are a few more pictures at (Logs 01-11):
http://www.mattsrv8.com/users/display_log.php?user=MattsRV8&project=638&category=2972&log=90253&row=12
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's All New RV-8 Construction Blog
<2009.10.11 - RV-8 - IO-390 And Oversized SW10610R Oil Cooler Installation (2).jpg>
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<2009.10.11 - RV-8 - IO-390 And Oversized SW10610R Oil Cooler Installation (24).jpg>
<2009.10.11 - RV-8 - IO-390 And Oversized SW10610R Oil Cooler Installation (25).jpg>
<2009.10.11 - RV-8 - IO-390 And Oversized SW10610R Oil Cooler Installation (26).jpg>
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<2009.10.11 - RV-8 - IO-390 And Oversized SW10610R Oil Cooler Installation (30).jpg>
<CB8-5 - IO-390 - 063 Shadow Doubler For SW10610R Oil Cooler - Version 1.0 - October
12 2009.jpg>
<CB8-5 - IO-390 - 063 Shadow Doubler For SW10610R Oil Cooler - Version 1.0 - October
12 2009.pdf>
Message 2
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| Subject: | RV-8A QB Kit - Sell Kit or Partner Wanted to help Complete |
Empennage COMPLETED (Interior - Acid Etched, Alodined and Mil Epoxy Primered) =
Meticulous workmanship. QB Wings and QB Fuselage have NOT been started. Everything
is in excellent condition and nothing is missing (Complete Kit)
Asking $19.5K. Currently Vans sells (above) - Empennage + QB Wings + QB Fuselage
for $25K (includes Crating Charges) and there is a long "Lead Time".
Ideally like to find a Builder (Partner) to work together to complete Project who
has space to build it or sell it.
Presently hangared in Chino, CA. Need to move ASAP !!
Garey Wittich (310) 392-1682
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