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Congratulations
on your triumph. It's got to be a really tremendous feeling to vindicate
all that time and work. Good on ya'!!
Yeah it really is a great feeling. I
imagine I must be grinning like an idiot while flying. I think everybody thinks
it an "RV grin", but I really found the FWF to be the most satisfying part of
the project and to fly behind it really is great, so it's more of a "Rotary
Smile"
what kind of plenum do you have for your radiators? With that kind of
d-T, it sounds like you must have an excellent plenum.
I shaped them using foam
and fibreglass, trying to make the smoothest transition possible from opening to
rad, but it is a fairly short distance so the optimum 7 degree angle was just
not possible (heck, I didn't even know about it back then:-). As the ford cores
are a little smaller but thicker they allowed me to mount them perpendicular to
the airflow allowing the cooling fins to be aligned with airflow. I can't prove
that this makes a difference but it certainly can't hurt. This also made it
easier to have a smooth flowing plenum. I don't have any ductwork on the
backside of the coolers. On the left side it will never be possible to add this
due to the proximity of the turbo, but on the right side I have plenty of room.
I've considered adding a set of louvers on the right side of the cowl and
ducting the right rad outlet to exit the louvers. This is not to improve the
coolant temps, but rather to off load the exit air from the outlet duct, as this
should help the oil cooler. A plenum on the oil cooler outlet would help but
would be very difficult to build around the nose gear.
What kind of oil cooler do you have? Stock Mazda? What do
you suppose would happen if you used another evaporator core for an oil
cooler? Seems thicker is better (and it might fit better under the cowl).
Loving all the good news ... Jim S.
Oil
cooler is stock Mazda. All previous reports on the list indicated that it was
most ideal, and I couldn't find a reason not use one. It does fit very well
under my cowl. As I've not yet had time to really tweak the system, I'm
confident that I can get more than adequate cooling from this cooler, but if it
became necessary I would consider another evap core for a cooler, however I
really don't think it will be necessary.
S. Todd Bartrim
Turbo 13B RV-9Endurance
C-FSTB
http://www3.telus.net/haywire/RV-9/C-FSTB.htm
"Whatever you vividly imagine, Ardently desire, Sincerely believe in,
Enthusiastically act upon, Must inevitably come to pass".
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