----- Original Message -----
Sent: Friday, February 04, 2005 10:41
PM
Subject: [FlyRotary] Oil/coolant
exchanger was Re: Cool Collar oil filter cooler
How
was it mounted? Did it have anything to do with the oil filter and mount? I
really don't need any additional oil cooling, but I was thinking of adding a
small exchanger due to another new gizmo I installed.
As I am using an EWP for coolant, I've
experienced an issue that won't effect most of you down in the banana belt.
During long descents in the winter, the automatic controller slows the coolant
flow down in an effort to maintain engine temp, this low flow results in not
enough flow through my heater core and it gets damn cold in a real hurry. This
wouldn't be a big deal, except that normally it's toasty warm in the cabin in
all weather, so I don't need to dress in a heavy jacket. I can override the
automatic controller or even switch on the backup EWP to maintain coolant
flow, but then the engine will cool off completely and eventually it will
still begin to blow cold air through the heater core. To resolve this issue I
bought an EBP (electric booster pump) from Leon (Davies Craig). This is a very
cute little pump that fits very nicely in my heater line and allows me to
maintain heat while the EWP is at it's minimum flow setting. It also adds a
little extra coolant circulation through the block with out excessively
cooling the engine. This brings me to my new
opportunity...
I keep thinking about the possibility of a small heat
exchanger in this location as plumbing would be simple since I have the oil
lines coming from the cooler and remote filter in close proximity. This
would allow a small amount of heat transfer as a sort of heat balance. I've
noticed that oil takes longer to heat up than the coolant, but cools off much
slower as well due to it's lower thermal conductivity. This really isn't a
problem, but an exchanger would balance this. This pump would also
allow a small amount of coolant heat rejection in the incredibly unlikely
event of both EWP's failing. Really I'm just considering adding extra weight
to address a problem that I don't even have just to take advantage of an
opportunity. But that's what tinkerer's do I guess.... (like I don't have
enough to do already?)
Todd
Worked in their application, would need some
testing in ours, I'd think. They had some major cooling problems without
this gizmo though, as I understand it.
Jack