EGT's how to lower them? - Ford Powerstroke Diesel Forum
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post #1 of 18 Old 03-12-2012, 08:48 AM Thread Starter
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EGT's how to lower them?

I was wondering if getting rid of my dpf/cat delete pipe and running a full 5" exhaust draught pipe would lower my EGT's a lot? And if so how much if anyone has done it?

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post #2 of 18 Old 03-12-2012, 10:12 AM Thread Starter
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Draught is straight auto correct got me

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post #3 of 18 Old 03-12-2012, 10:15 AM
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IIRC it will lower them by about 100*....
Also, intake is a very popular choice!



Water/meth will cool those temps down alot

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post #4 of 18 Old 03-12-2012, 11:05 AM
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You won't see any EGT drop with an exhaust system unless you replace the factory downpipe with a free flowing 4" downpipe. If you are looking for EGT reduction, I would do the 4" downpipe and at least a 4" downpipe back exhaust. I would then look in to doing an EGR cooler delete with a CAC pipe and intake elbow. You will see quite the reduction with all of that combined.

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post #5 of 18 Old 03-12-2012, 04:18 PM
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Jeff's whats your egt's @ say a 70mph cruise? Before your turbo upgrade?

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post #6 of 18 Old 03-12-2012, 04:32 PM Thread Starter
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Do you have to remove the cab to do a down pipe I've been hearing you do but I read on here that if you cut it out you don't is this true and if you cut it out how do you get a new one in? I already have a S&B cold air intake. What does a EGT cooler do doesn't my h&s programmer have that turned off?
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post #7 of 18 Old 03-12-2012, 04:36 PM Thread Starter
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Don't know Jeff never drive highway hardly but I have my de-fuel set at 1200 and if I punch it, it will hit that around 55 or 60 mph.

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post #8 of 18 Old 03-14-2012, 03:46 AM
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wondering the same thing. under the hood its pretty tight and cant even see the clamp or bolts for the downpipe. is the downpipe cut from the bottom?
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post #9 of 18 Old 03-14-2012, 03:59 AM
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Ya you cut it from the bottom as high up as you can with a saw-zall,get some good blades, it's a real pain in arse because it's duel wall.I have the add ons in my sig and at 70 my egt's on hot damm 300 are 560 now with kem 345 at 620.

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post #10 of 18 Old 03-14-2012, 12:11 PM
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I'm @ low 700's 4 inch from turbo back... :-/ It's been in the 70's the past couple days here in Cincinnati & my ECT runs between 198-200, is that normal? I'm running an SCT W/ the RCD 585, AFE S2 pro5r

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