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oil cooler

 
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by0ung(at)brigham.net
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PostPosted: Sat May 12, 2007 10:04 am    Post subject: oil cooler Reply with quote

Maybe a little lower
engine oil temp and a little higher CHT.

john h
mkIII

Quote:
>>>>>>>>>>>
john


why would a lower oil temp result in a higher cht?

boyd


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John Hauck



Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

PostPosted: Sat May 12, 2007 10:34 am    Post subject: oil cooler Reply with quote

| why would a lower oil temp result in a higher cht?
|
| boyd
Hi Boyd:

Good question. I am glad you asked.

Folks, you don't get much past Boyd.

The new oil cooler is about 1.5 to 2" taller than the old one. It is
piggy backed on the radiator. Figured covering up more of the
radiator would bring up the CHT, while lowering the eng oil temp.
However, it may cancel itself out. Don't know yet. Have not test
flown with the new cooler.

Temps here are conducive to eng oil cooler testing. Yesterday was 94F
and today is 92F.

Main thing I was shooting for was bring down the eng oil temp so I
could run hard in hotter OAT. May have to swing by Death Valley this
trip to test it. Wink

john h
mkIII


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John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama
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dougwe(at)comcast.net
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PostPosted: Sat May 12, 2007 6:29 pm    Post subject: oil cooler Reply with quote

I think you'll find the Utah weather accommodating enough for you, John. It
was 91 here in Salt Lake yesterday.

Doug Wetzel

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by0ung(at)brigham.net
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PostPosted: Sun May 13, 2007 6:34 am    Post subject: oil cooler Reply with quote

John h. with the oil cooler behind the radiator,,,, you will slow the air
through the radiator, not blank it out.... I cant think the water temps will
climb too much,,, and with the cooler oil helping to cool the heads... I
don't think you will notice higher temps... let me know by weeks end.

My first thoughts,,, greater heat radiating surfaces... with the same power
setting should result in greater cooling.

Boyd

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