EOT Temps while towing - Ford Powerstroke Diesel Forum

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post #1 of 25 Old 04-28-2012, 02:36 PM Thread Starter
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EOT Temps while towing

Hey Guys, Just had a short trip down the HWY twoing my 12,000lbs fifth wheel toy hauler. I installed the BDP oil and EGR cooler two weeks ago, this was my first towing trip with the BDP oil and EGR cooler. I towed between 60-65mph, ECT was 206 most of the time
EOT was 225most of the time.
So a 19 degree delta
for the last two weeks back and forth to work and general driving my EOT would be 5 to 10 degrees above coolant temp.

So take it for what its worth, hope the rest of yall care to share your "temps while towing", and i hope mine temps aren't too far out of line?
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post #2 of 25 Old 04-28-2012, 03:08 PM
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An EOT of 225*? That's not very good for the amount of money the BDP kit costs. My dually with a clogged oil cooler is only 228-230* towing 7,000-10,000lbs. at 2100rpm

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post #3 of 25 Old 04-28-2012, 04:00 PM
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What were the roads like when you were pulling, and how fast were you cruising. The EOT doesn't really draw much concern. Your unloaded cruising temps look fine. The high towing temps could be magnified by altitude, grades, or driving habits.

Did you install the external oil cooler, or the updated Ford part?
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post #4 of 25 Old 04-28-2012, 06:03 PM Thread Starter
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the HWY was flat except when going up and down overpasses, towing speed 60 to 65mph, altitude 3500 feet, outside temp 90degrees, 30% humidity, typical North West Texas weather.
Bullet Proof External oil cooler and there EGR cooler.


Quote:
Originally Posted by colo_dually View Post
What were the roads like when you were pulling, and how fast were you cruising. The EOT doesn't really draw much concern. Your unloaded cruising temps look fine. The high towing temps could be magnified by altitude, grades, or driving habits.

Did you install the external oil cooler, or the updated Ford part?
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post #5 of 25 Old 04-28-2012, 06:11 PM
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post #6 of 25 Old 04-28-2012, 06:16 PM
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read my post on air/oil coolers i know of two trucks with similar systems they seem to have high deltas also
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post #7 of 25 Old 04-28-2012, 07:57 PM
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Pulled my 15k 5th wheel today for the first time, with the SCT can 50hp tow. Averages today were:
ECT 202
EOT 209...

This is a stock 2007 F350 dually...

2007 F350 Crew Cab Dually FX4
Studded, EGR Delete, oil cooler, 4" turbo back MBRP exhaust custom tunes from IDP Xtreme Street and Tow w/Jake Brake
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post #8 of 25 Old 04-28-2012, 08:00 PM
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textman that is right were it should be as far as deltas imo
but your overalls are a bit high check your thermostat but your oil cooler is perfect
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post #9 of 25 Old 04-28-2012, 09:10 PM
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Delta is not a reference point with external oil coolers dudes... the oil and water are not going through a combined cooler, so there is no reason they should be close. So with the BPD external oil system, delta is not applicable, it is a measure of nothing. More like a conventional motor. My LS6 in my CTS-V runs 230 EOT and 190 ECT all day long, and that is normal... Once the 6.0L engine "oil/water cooler" is removed like in the BPD kit, there is nothing relating the two fluids except the fact they are flowing through ports in the same block. Make sense?

and as far as "normal oil temps", to the OP, you are fine, towing 12k or more, the temps are going to be higher, EOTs under 260 are fine. Textman, dude, where are you taking your reading? and when was the last time you weighed your trailer bro. Facts are the most helpful thing we can provide each other on this forum, nobody is pulling 15k at 209 EOT, sorry bro, something is wrong with your reading. Normal unloaded temps are 190-200, you don't pull near Max combined GWVR and only run 9 degrees hotter, your system of data capture is corrupted or something...

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Last edited by jetjock15; 04-28-2012 at 09:15 PM.
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post #10 of 25 Old 04-28-2012, 09:19 PM
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+1 for what jetjock said on the delta.

Also, your engine does not begin to defuel on oil temp until 253 degrees. You are quite fine at 225.

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Last edited by bismic; 04-29-2012 at 05:32 AM.
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