Home > VansAirForceForums

-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

Old 03-15-2011, 07:58 PM
vmirv8bldr's Avatar
vmirv8bldr vmirv8bldr is offline
Join Date: Jun 2005
Location: Eastvale, CA
Posts: 378
Default IO-390 with SJ Plenum

Has anyone here installed a Sam James Plenum on an IO-390 and then mounted the large SW oil cooler? Looks like this is going to be a tight fit, and have to get the AFP spider reconfigured.

Appreciate any guidance, tips, hints, and especially pictures.

Thanks in advance,
Bart Filipiak
Eastvale, CA
RV-8 N74VB

Barrett IO-390
Reply With Quote
Old 03-15-2011, 08:52 PM
Fastback8 Fastback8 is offline
Join Date: Apr 2009
Location: Madison, MS
Posts: 51
Default I have the same problem with an angle valve I0-360

Dan Horton comes to mind and he designed his own plenum. Nice work too, I might add I am a Dan fan! Positioning with the larger engine? The larger Oil cooler works well on the right firewall. Place it in a horizontal position, down low. Use a 4" hose leading into a duct and make a gentle bend. (Make the duct like Dan H does here)
or use wood to make a form and clear tape, then lay the wet cloth, glass.

I would rotate the spyder upside down and that should give you the plenum clearance. Sam recommends this. Alternatively, cut-out a spyder hole (no pun intented) and glass a dome over the spyder to solve the clearance. Easy enough either way.

Good luck
Look good, FLY FAST
Reply With Quote
Old 03-16-2011, 01:08 PM
deene deene is offline
Join Date: Jan 2005
Location: Georgetown, TX
Posts: 398

I used Sam's plenum on my '8 with a 390. Plenum fit after I split it, put a joint in the center (fore/aft), and added a bump (about 1/2" high) to clear the spider.

I've had very good results speed and cooling. I used a larger oil cooler mounted on the firewall and a 4" duct feeding it off #3.
Deene Ogden.
N399AD RV-12...flying
N299AD RV8 QB, IO-390X, BA prop...SOLD
N199AD One Design...SOLD
N99AD BD4, flew for 22 years...SOLD
EAA Tech Counselor/Flight Advisor
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -6. The time now is 10:13 PM.

The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.