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From: SHIPCHIEF@aol.com
Message-ID: <c80.58d1adfe.37cc7d46@aol.com>
Date: Sun, 30 Aug 2009 21:11:34 EDT
Subject: Turbo oil supply and drain
To: flyrotary@lancaironline.net
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After input from Dave L;
I ran my engine last year (an posted it on Youtube). But I never got good 
control over the rate of temp rise for the water.
Also, during a teardown to upgrade the secondary injector holders, I 
noticed standing oil in the intake manifold.
Oil was passing thru the Turbo compressor seal and into the intake pipe. I 
figured it has to be excess oil supply, restricted drain or both. 
I like using the turbo, it's been a fun challenge, plus it's a great 
muffler. I removed it and started to build a conventional exhaust system, but I 
decided to give it another chance.
After reading the hot rodders forums, I decided to put a control orifice in 
the supply fitting on the top of the turbo, I welded up the fitting and 
drilled it .067" (the reccomended size is .065, I used a #51 drill bit). I am 
also opening up the drain side to -12 from -8, and switched to the lower port 
on the accessory case. 
I moved the oil cooler to the right side and dedicated all the right inlet 
air to it via a diffuser I made.
I mounted a griffin 22"x19" radiator under the oil pan ala Dave L, and I'm 
working on the chin scoop design. 
The left cheek I plan to supply air to the turbo intake, and surface 
cooling air for the exhaust system.
If (when) I add an intercooler, it will probably spill air out the left 
side like the oil cooler does on the right side. I just want to make sure it's 
only fresh outside air passing thru this area as my RV-8 has the typical 
fesh air inlet for the pilot just aft of this location, and wouldn't want to 
introduce any CO to the cockpit.
Any constructive comments would again be apreciated.
You can view my progress at the EAA326.org site, here's the link:
http://gallery.eaa326.org/members/semery/

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<HTML><FONT FACE=3Darial,helvetica><HTML><FONT  SIZE=3D2 PTSIZE=3D10 FAMIL=
Y=3D"SANSSERIF" FACE=3D"Arial" LANG=3D"0">After input from Dave L;<BR>
I ran my engine last year (an posted it on Youtube). But I never got good=
 control over the rate of temp rise for the water.<BR>
Also, during a teardown to upgrade the secondary injector holders, I notic=
ed standing oil in the intake manifold.<BR>
Oil was passing thru the Turbo compressor seal and into the intake pipe.=
 I figured it has to be excess oil supply, restricted drain or both. <BR>
I like using the turbo, it's been a fun challenge, plus it's a great muffl=
er. I removed it and started to build a conventional exhaust system, but=
 I decided to give it another chance.<BR>
After reading the hot rodders forums, I decided to put a control orifice=
 in the supply fitting on the top of the turbo, I welded up the fitting an=
d drilled it .067" (the reccomended size is .065, I used a #51 drill bit).=
 I am also opening up the drain side to -12 from -8, and switched to the=
 lower port on the accessory case. <BR>
I moved the oil cooler to the right side and dedicated all the right inlet=
 air to it via a diffuser I made.<BR>
I mounted a griffin 22"x19" radiator under the oil pan ala Dave L, and I'm=
 working on the chin scoop design. <BR>
The left cheek I plan to supply air to the turbo intake, and surface cooli=
ng air for the exhaust system.<BR>
If (when) I add an intercooler, it will probably spill air out the left si=
de like the oil cooler does on the right side. I just want to make sure it=
's only fresh outside air passing thru this area as my RV-8 has the typica=
l fesh air inlet for the pilot just aft of this location, and wouldn't wan=
t to introduce any CO to the cockpit.<BR>
Any constructive comments would again be apreciated.<BR>
You can view my progress at the EAA326.org site, here's the link:<BR>
http://gallery.eaa326.org/members/semery/<BR>
</FONT></HTML>
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