Safe EGTs? - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 5 Old 04-23-2010, 02:03 PM Thread Starter
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Safe EGTs?

How hot can you go on these motors reliably? H&S has the defueling set at 1450, but how long can it sustain that? If I have the motor loaded, how long can I safely run EGTS above 1000? 1200? 1400?. I have had lots of diesels, this is the first one I have modded. I don't tow often, but occasionally do and I don't want to melt any pistons.

'70 Mach 1 428CJ, Calypso Coral, White interior,
'55 F-100, 5.0, AOD, Street Rod
'10 F-250 CC 4x4 Lariat SWB, H&S Black Maxx, 4" Pro-Flo Exhaust, S&B
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post #2 of 5 Old 05-01-2010, 08:06 PM
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x2 i know what my 6.0l could take, but the 6.4's everybody seems to talk the 310 tune hitting 16-1800???

2012 F250 King Ranch
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post #3 of 5 Old 05-02-2010, 06:03 AM
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Me too. I can hit the 1400's if I'm playin and have it nailed till about 100. But it's only for maybe 5-10 sec. I think I would worry at 1100-1200 sustained pullin.

08 F-350 CC DRW King Ranch
SCT with river city diesel 450 tune and Delete pipe
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post #4 of 5 Old 05-04-2010, 11:05 AM
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I just rode with a buddy of mine in his lifted 08 while pulling about 7-8000 lbs. He is bone stock besides the lift. It has 28,000 miles on it.

He was running it pretty hard.. 70-80mph all the time with quite a few hills(The alaska hwy).

The egts ran consistantly at about 1200. A couple of times on long pulls it worked its way up to about 1350 or so. I was amazed at how much time it was actually above or at 1200 degrees.

I don't think a guy is pushing it too much by being around 1400.

His coolant temp was also up to 224 and oil temp got up to 227 on a real long pull but the stock engine temp guage never moved... what a pos!

I am actually starting to belive that it is better for these trucks to be spartanized!! Also, the boost was rarely below 20psi.

2010 F350 Crew Cab Long Box
Spartan , S&B Intake 3.55
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post #5 of 5 Old 05-04-2010, 02:10 PM Thread Starter
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I guess that is what I am asking. If you pull a trailer up a long grade, when should you give it less gas to try to cool it down?

'70 Mach 1 428CJ, Calypso Coral, White interior,
'55 F-100, 5.0, AOD, Street Rod
'10 F-250 CC 4x4 Lariat SWB, H&S Black Maxx, 4" Pro-Flo Exhaust, S&B
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