EGT Probe location(s) ?????? - Ford Powerstroke Diesel Forum
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post #1 of 14 Old 09-03-2012, 09:09 AM Thread Starter
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EGT Probe location(s) ??????

Okay guys, i have a really stupid question...

I have been wanting to add an EGT gauge to my truck... However Im now stuck on the location to put the probe.

I have been seeing people place the probe in the downpipe (after the turbo) and some installing them in the passenger side manifold hell ive even seen some guys adding probes to both manifolds to record temps on both sides...

I think the d.p. Mounting would be better as theres less of a risk of a newbie leaving shavings from the install to go thru the turbo.

So my question is:

Where is the best place to mount the probe... And WHY?

Thanks guys....

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post #2 of 14 Old 09-03-2012, 09:17 AM
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Put it in the manifold. You won't get shavings in the turbo. Just do it.
Manifold, you're measuring temps just after the cylinders. That's what you're protecting. More than 1250*F for too long, you might start slinging slag.
Post turbo, the temps have already cooled off up to, if not more, than 600*F. Hard to *guess* what temp the manifold is then, huh?
Get the proper sized bit for the tap, start a small pilot hole going slow so the shavings stay in relatively large pieces and they fall down, then get your proper sized bit doing the same thing. Don't spin it fast and make tiny dust. I believe the manifold is cast anyway, so going slow allows for large pieces. Then vacuum if you feel like it. And tap it. I didn't vacuum. I just used a pilot bit, normal bit, then tap.



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post #3 of 14 Old 09-03-2012, 09:21 AM
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Gunny I placed mine in drivers manifold used a vacuum to pull what little shavings I could and ran it with zero adverse effects,where you located btw in 1st mardiv

-Kris-
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post #4 of 14 Old 09-03-2012, 09:24 AM
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Dip the drill bits in grease and and all the shavings will stay on the bits and yes put it in the manifold. Mine is on the drivers side that way shorter distance for wire going to gauge. Did everything from under truck without removing anything.

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post #5 of 14 Old 09-03-2012, 09:30 AM
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Quote:
Originally Posted by jesilvas View Post
Put it in the manifold. You won't get shavings in the turbo. Just do it.
Manifold, you're measuring temps just after the cylinders. That's what you're protecting. More than 1250*F for too long, you might start slinging slag.
Post turbo, the temps have already cooled off up to, if not more, than 600*F. Hard to *guess* what temp the manifold is then, huh?
Get the proper sized bit for the tap, start a small pilot hole going slow so the shavings stay in relatively large pieces and they fall down, then get your proper sized bit doing the same thing. Don't spin it fast and make tiny dust. I believe the manifold is cast anyway, so going slow allows for large pieces. Then vacuum if you feel like it. And tap it. I didn't vacuum. I just used a pilot bit, normal bit, then tap.
^^^ What he said.

When I did mine, I put a little bearing grease on the bits as well to help catch the shavings.


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post #6 of 14 Old 09-03-2012, 03:57 PM Thread Starter
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Quote:
Originally Posted by 351fifty View Post
Gunny I placed mine in drivers manifold used a vacuum to pull what little shavings I could and ran it with zero adverse effects,where you located btw in 1st mardiv

In Boise You-da-ho... For now... Wanna go back home to Seattle/Sacramento... But not yet... Opening a new Repo office here...

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2005 6.0L F-250 LARIAT CCSB, 4X4, Auto 281K miles
CREW CAB, EGR Delete, 4" Turbo Back, Straight Piped (Bully Dog Triple Dog... Just for Gauges )


Project Truck

2003 F350 Lariat, CCLB, 4x4, Auto, 6637 Mod, Gunny HUD Mod, 98,627 ORIG MILES

PARKED PENDING INSTALL OF THE
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post #7 of 14 Old 09-03-2012, 04:03 PM Thread Starter
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Thanks guys... Just didnt know which way would be the best... Ive seen videos on youtube going both ways... i figure ill use the glow shift 3-in-1 gauge as a temp. Set of gauges untill i can save up for my factory matched isspro gauges...

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Rapponotti, M.T.
Gunnery Sergeant
USMC 1st MARDIV


2005 6.0L F-250 LARIAT CCSB, 4X4, Auto 281K miles
CREW CAB, EGR Delete, 4" Turbo Back, Straight Piped (Bully Dog Triple Dog... Just for Gauges )


Project Truck

2003 F350 Lariat, CCLB, 4x4, Auto, 6637 Mod, Gunny HUD Mod, 98,627 ORIG MILES

PARKED PENDING INSTALL OF THE
7.3 SUPER BLACK MAMBA MOTOR
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post #8 of 14 Old 09-03-2012, 04:42 PM
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Drivers side manifold is the leanest side and the closest to the side you're mounting the gauge

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post #9 of 14 Old 09-03-2012, 05:07 PM
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My egt probe from auto meter came with enough wire to go in the pasd side manifold btw, but ii installed in drivers side, just wrapped the extra and ziptied all my wires together going in the cab

-Kris-
2011 f150 ecoboost 4x4 323/452 on php dyno 11/16/13
1995 CCLB DRW 324K
2001 CCLB DRW 319K
Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked


Quote:
Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
Quote:
Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
Quote:
Originally Posted by JJFLASH
Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
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post #10 of 14 Old 09-03-2012, 06:37 PM
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Driver is leanest? Though #6 and #8 fired one after another. How is that lean?



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