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1,250* is max! I've heard no more then 1,250* for 30 seconds.Bone stock, (muffled exhaust, stock intake) on a slight incline cruising at 60, about 2,000, maybe 2,100 on the tachometer, pulling 8,000 lbs, I saw 950* for a few seconds, and then I topped the hill, and they fell back to ~700*. :thumbup2:EDIT: After I put the BHAF on, I pulled the same hill with the same weight, and EGT's were about ~50* cooler.

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I've been known to touch 1,400*F but rarely and only for 10 seconds or less.My typical limit is 1,200*F and if so then I gear down 1 gear and kick the RPM's back up to 2K and hold and watch the EGT's. Most grades I can pull in 4th gear and hover about 1,000 to 1,100*F in EGT's.

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Texas CTD - Thanks a bunch. I pull about the same weight as you, and our trucks are about the same. You must have a 4:10 gear, mine is a 3.54, so expect for and difference altitude might make I should be almost the same.

No sir - 3.54, NV4500. :thumb1:
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My buddy and I were discussing this exact thing last night. He tows a lot and heavy, as well as runs a 12V pulling truck. Pulling truck is stupid mean, and tow rig is a modified, twin turbo 24v (both are 2gens.)

He runs 16-1800* in his pulling truck. Towing, he regularly sees 14-1500*F pulling long grades, no issues thusfar.

Is this a good practice for the average Joe? Doubtful. I asked about the 12-1300*F range under load for a minute or two, and he responded "wouldn't worry about it"..

Food for thought..

Puller: Posted Image

TowRig: Posted Image

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I must be confused, or I am the wrong guy replying to this thread... I don't have a DPF, and I don't recall ever saying I did.... This is Utah Dully...

He was reading the signature of CUMMINSDIESELPWR , look at his sig from post #11 above, says he has the dpf "Diesel particulate filter" deleted which didn't come along until around 2008. Nothing to do with you.

- - - Updated - - -

While towing with my 02, I ran 1250-1300 consistantly for years with no issues. Measured Pre-turbo rear section of manifold collector.

I know guys with modded 3rd gens who never see anything less than 1200 while towing full time.

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He was reading the signature of Dieselautopower, look at his sig from post #11 above, says he has the dpf "Diesel particulate filter" deleted which didn't come along until around 2008. Nothing to do with you.

- - - Updated - - -

While towing with my 02, I ran 1250-1300 consistantly for years with no issues. Measured Pre-turbo rear section of manifold collector.

I know guys with modded 3rd gens who never see anything less than 1200 while towing full time.

CUMMINSDIESELPWR, not Dieselautopower

:cookoo::lmao:

you're confusing me, now.. but that's easy to do, as of late..

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Fixed it lol, reading one thing and thinking another.........Happens a lot more since I broke 40 a couple years ago.:doh:

Wait till you are 60. I cant remember to zip up my zipper anymore:doh:. No wait that happened at 50, now I cant remember what happened at 60. If I remember Ill let yall know.:think::shrug::lmao:
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