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Old 06-28-2011, 02:01 PM
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Using engine oil to heat the fphe

I thinking of some outside the box ways to get more heat into my system.
What about putting the fphe on a seperate loop and using engine oil to heat it vs. water. From what I read the engine oil temp is usually 20deg hotter than the water. I'd be easy to tap into, there is a plug right next to the oil filter.(guys use this for bypass oil systems). The only question I have is how much flow actually come thru this port?
I think it could work, I would think I'd get heat to the fphe faster and hotter.
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Old 06-28-2011, 04:39 PM
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This sounds like something worth looking into.

I've got no real world reason why it wouldn't work. Clogging issues maybe?
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Old 06-29-2011, 08:00 AM
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only negative thing I see from it is that eventually in the summer it would act as an engine oil heater but I think that is a very minute point.
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Old 06-29-2011, 10:59 AM
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Couple things I wonder about are how well oil transfers heat vs water. And how much flow actually comes through the 1/8" NPT oil port plug next to the oil filter.
Any ideas?
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Old 06-29-2011, 01:36 PM
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Are you really having that much trouble with heat in your system? Why not get a bigger FPHE? There is not much volume coming through that port and I have read in threads about oil by-pass filters that this port can not be a wide open flow because it takes flow from the motor.
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Old 06-29-2011, 10:30 PM
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Quote:
Originally Posted by tubular031 View Post
Are you really having that much trouble with heat in your system? Why not get a bigger FPHE? There is not much volume coming through that port and I have read in threads about oil by-pass filters that this port can not be a wide open flow because it takes flow from the motor.
I have decent heat, but I wish it was about 10-20 deg hotter under light load conditions. I get about 150-160 under light load, city/country driving. Pulling or highway its no problem.
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Old 06-30-2011, 04:31 AM
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you could put a 203 degree t-stat in.

I get 190 degrees consistently with mine, regardless of load conditions.
My 30 plate HE is mounted in the valley and fed from the heater core line.

Even if I shut off the coolant flow I still get over 100 degrees just from the radiant engine heat.
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Old 06-30-2011, 04:56 AM
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Quote:
Originally Posted by Aaron Berk View Post
you could put a 203 degree t-stat in.

I get 190 degrees consistently with mine, regardless of load conditions.
My 30 plate HE is mounted in the valley and fed from the heater core line.

Even if I shut off the coolant flow I still get over 100 degrees just from the radiant engine heat.
I have the 203 deg t-stat and 30 fphe.
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Old 06-30-2011, 05:15 AM
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What kind/brand of gauge are you using to measure the temp? I stupidly put in glowS*H*I*T gauges to watch coolant temp, VO temp and pressure. Guess what I found?! all 3 were WRONG and even after replacing the senders (replaced under warranty) they were STILL WRONG! I now have isspro ev2 gauges and they are correct and look nice too
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Old 06-30-2011, 03:25 PM
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Originally Posted by tubular031 View Post
What kind/brand of gauge are you using to measure the temp? I stupidly put in glowS*H*I*T gauges to watch coolant temp, VO temp and pressure. Guess what I found?! all 3 were WRONG and even after replacing the senders (replaced under warranty) they were STILL WRONG! I now have isspro ev2 gauges and they are correct and look nice too
I'm using a Autometer oil temp gauge. I've always used Autometer in the past on other projects and race cars and always felt they were accurate, so I have no reason to feel that this one is any different.
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