Today's Message Index:
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1. 03:47 PM - Heat Exchanger (LRE2@aol.com)
2. 04:28 PM - Re: Heat Exchanger (HMS23TURBO@aol.com)
3. 04:36 PM - Re: Heat Exchanger (LRE2@aol.com)
4. 04:59 PM - Re: Heat Exchanger (HMS23TURBO@aol.com)
5. 05:02 PM - Re: Heat Exchanger (Dennis Turner)
6. 05:53 PM - Re: Heat Exchanger (HMS23TURBO@aol.com)
7. 06:50 PM - Re: Heat Exchanger (LRE2@aol.com)
8. 07:29 PM - Re: Heat Exchanger (Gary Gerber)
Message 1
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--> FEWMustang-List message posted by: LRE2@aol.com
Ed,
I am using the Chev "Sandwich" heat exchanger oil cooler, that mounts
on the oil filter boss on the block. I think we discussed it briefly and I
recall that you indicated that you were or were going to use the same system.
Dennis, Do I recall that you are using this system also?
My question is: the return from the heat exchanger, obviously goes into
the heater port on suction side of the water pump. Where do we get the cool
pressurized water source to input to the unit?
One could make a spacer with a side port to go between the water pump
and the block, or drill and tap a port into the water pump leg. Is there a
better way?
How did you guys do it? LRE
Message 2
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| Subject: | Re: Heat Exchanger |
--> FEWMustang-List message posted by: HMS23TURBO@aol.com
Larry,
First of all, thanks for the kind words regarding my trip up last weekend. I
don't think anyone realizes how passionate I am about getting FEW back up and
rolling as well as working with all of the current builders to get their
projects completed and flying. I just have to ask for everyone's patience as I
dig
through all of the obligations that I've inherited.
To your question. The water source is the intake manifold. It may seem to be
hot water at this point and be counterproductive to cooling the oil, but the
temps. will all level out when running. There are normally a few ports in the
area of the thermostat housing (the cross over between the cylinder heads) on
most small block manifolds. Usually they are tapped 1/2 npt. This is your
source. The return from the exchanger heads back to the top of the water pump;
normally at the 12 o'clock position with a port pointing straight up; again
usually a 1/2 npt thread is provided. I've got pictures if you like.
Ed
Message 3
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| Subject: | Re: Heat Exchanger |
--> FEWMustang-List message posted by: LRE2@aol.com
Thanks Ed, That helps me a lot. Some pics would be good too. LRE
Message 4
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| Subject: | Re: Heat Exchanger |
--> FEWMustang-List message posted by: HMS23TURBO@aol.com
Photos on the way to your e-mail address shortly Larry.
Message 5
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--> FEWMustang-List message posted by: "Dennis Turner" <dennis.turner@rmci.net>
Larry,
I originally had a Moroso heat exchanger that has the water running through
it lengthwise and the oil flowing across laterally. That didn't appear to
be enough, however, I have since discovered that the real problem was that
our engines produce so much heat in the oil at high RPM that even when I put
a 10"x21" oil radiator in front of the water radiator it still didn't cool
the oil as fast as the engine heated it up. Bottom line is that you have to
lower the RPM shortly after takeoff and then the temp has a chance to
stabilize, al biet at a fairly high temp of 260 degrees or so. The good
news is that the performance seemed better at the lower RPM anyway. My top
speed went from 215 mph (true) to 236 when I pulled the RPM back to 4600
RPM. So, bottom line in my case was I got more horsepower at high RPM so I
use that for takeoff, but for all other operations it is better (and a bit
quieter) at lower RPMs. The oil temps run wild at the high RPMs anyway. I
took the heat exchanger out and I'm just using the oil radiator now. I'm
not sure if just the heat exchanger would work because I never operated at
the lower RPMs for a prolonged time when the heat exchanger was all I had.
Could be that it would work, and if not you could always go back and put the
radiator in (if you haven't already). By the way, I have never had a
problem with water temps.
Hope this helps, give me a call if you want more info.
Dennis
-----Original Message-----
From: owner-fewmustang-list-server@matronics.com
[mailto:owner-fewmustang-list-server@matronics.com]On Behalf Of
LRE2@aol.com
Subject: Re: FEWMustang-List: Heat Exchanger
--> FEWMustang-List message posted by: LRE2@aol.com
Thanks Ed, That helps me a lot. Some pics would be good too. LRE
Message 6
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| Subject: | Re: Heat Exchanger |
--> FEWMustang-List message posted by: HMS23TURBO@aol.com
Another thought Larry.
If you wanted to reduce the length of one of the runs to the heat exchanger,
you can get pick-up a pressurized water source at the block drain located
about six inches forward of the oil filter pad. This is a smaller port but more
than adequate for what you are looking for.
Ed
Message 7
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| Subject: | Re: Heat Exchanger |
--> FEWMustang-List message posted by: LRE2@aol.com
Dennis, Thanks for that good information. Its a big help. It sounds
like you seeing best prop efficiency at 2100-2200 rmp (4600-4800rmp on the
engine) I am also reading that the heat exchanger may not be enough to maintain
adequate oil temps. Good to hear from you. LRE
Message 8
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| Subject: | Re: Heat Exchanger |
--> FEWMustang-List message posted by: Gary Gerber <44gn@kconline.com>
Hey guys when you email each other about all this good stuff and send pic's I
would sure like it if you would ( reply all ) that way we will see what we
will be up to later on. Thanks for all that you do. Gary
HMS23TURBO@aol.com wrote:
> --> FEWMustang-List message posted by: HMS23TURBO@aol.com
>
> Photos on the way to your e-mail address shortly Larry.
>
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