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Message
Rusty,
I have
the stock 2nd gen oil cooler, and it sits at the entrance of the NACA scoop
against the firewall. The air has to flow up through it, but when I made
ground tests using a furnace blower, I was surprised at how much airflow there
was through the oil cooler. It was really quite high.
I am
pulling air for the turbo intake from the side of the plenum in between the
oil cooler and radiator. It could be that at high RPMs, I'm pulling a
significant amount of air away from the oil cooler, and probably the radiator
too. I could probably pull engine inlet air from the armpit scoop feed the
intercooler. I would imaging that there is plenty of air available
there. Image146 shows a picture of that
scoop. There is one just like it on the other side feeding the heater core
which I use as an auxiliary radiator also.
Image0093 shows the oil cooler and radiator
positions. The air enters from the scoop below. There is a shroud
around both the radiator and oil cooler to ensure that the inlet air flows
through the radiator and oil cooler. Though it's not on in this photo,
there is an aluminum deflector plate mounted above the oil cooler that shield
the fuel pumps from the heat off of the oil cooler. The deflector forces
the air to exit aft.
Steve
I was concerned most about the oil, because I have my red line
set at 240, and 233 isn't that far below. I had considered retracting
the front gear to what improvement that would show, but decided it was too hot
to continue, so I landed.
Good decision.
The spec for oil is considered to be 210 max as it goes into the engine.
I've certainly pushed 240, as has Ed, and probably others, but be happy that
you got away with it so far, and don't do it again :-) Unfortunately,
this is standard teething pains. What sort of oil cooler do you have,
ducting, etc? Pics? If you need a nice Setrab, I'm having a hanger
sale :-)
Good
luck,
Rusty (plenum shaped
in foam, ready for the icky stuff)
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