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9th December 2018, 09:23 PM
#1
Expert
EGT gauge probe location
Hi guys
I want to fit some gauges to my car.
First question is: where is the best place to put EGT probe? dump pipe or manifold?
How do you drill and tap a 1/8NPT thread?
I have a high mount manifold with the provision for an external wastegate. Do you reckon I could install it in the blanking plate thats on there?
20181209_184200.jpg
Also, is this the line you install the boost controller and boost guage tee on? Do you put the tee before or after the boost controller in the line?
20181209_184235.jpg
Where do you usually run your PCV breather on top of the rocker cover?
Cheers
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9th December 2018 09:23 PM
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10th December 2018, 07:09 AM
#2
The master farter
Originally Posted by
JackoGQYoot
Hi guys
I want to fit some gauges to my car.
First question is: where is the best place to put EGT probe? dump pipe or manifold?
Post or pre turbo is fine. Its only a gauge for your reference.
How do you drill and tap a 1/8NPT thread?
with a drill and a tap and die set. Lol. Sorry had to be said.
I have a high mount manifold with the provision for an external wastegate. Do you reckon I could install it in the blanking plate thats on there?
sure why not? Looks easy enough there.
Also, is this the line you install the boost controller and boost guage tee on? Do you put the tee before or after the boost controller in the line?
20181209_184235.jpg
Where do you usually run your PCV breather on top of the rocker cover?
Goes in the air intake between the air box and turbo...
Cheers
Answers in bold....
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10th December 2018, 08:01 AM
#3
Go for a welded socket instead of a drilled and tapped hole in the dump pipe. There is not enough wall thickness to keep the thread from getting loose as it heats up - I know because I tried it and it failed - now have 1/4" NPT sockets, with reducing bush to 1/8"NPT in both headers for my EGT's and happy days. It cost me $50 for both sockets to be welded in at a local exhaust place and I supplied the mild steel sockets. You can buy the sockets on ebay. Check the size of the connection though as some pyro's have 1/8" on the probe and then have a special seating socket with male and female threads, hence why I have the 1/4" welded instead of going straight to 1/8"
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10th December 2018, 09:15 AM
#4
Expert
Thanks guys.
@PeeBee, I'm just a bit worried about the taper thread on the egt probe. Will the tap cut it alright?
Cheers
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10th December 2018, 10:43 AM
#5
Patrol God
Originally Posted by
JackoGQYoot
Where do you usually run your PCV breather on top of the rocker cover?
Usually gets dumped back into your intake. Put a catch can on it instead.
Mate, I'm intrigued by your intake setup. Any chance of a full photo of it???
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10th December 2018, 11:26 AM
#6
I am he, fear me
Originally Posted by
JackoGQYoot
Thanks guys.
@
PeeBee, I'm just a bit worried about the taper thread on the egt probe. Will the tap cut it alright?
Cheers
Tapered threads are only tapered on the male, the female thread is parallel so no worries with tapping a thread... but... on the dump you are better off welding on an adapter as prev posted.
Best place is for the probe is the manifold, putting it post turbo means you are "guessing" the delta T lost thru the Turbo.
Different turbo setups/manifolds/positions will have different losses
Depends how close to the edge you want to run the engine.
Last edited by the evil twin; 10th December 2018 at 11:30 AM.
Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.
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10th December 2018, 12:12 PM
#7
As @ET says above. There is simply no meat in the dump pipe as its sheet metal. If going into the manifold watch out for swarf getting inside the engine. This goes for the drilling operation as well. If you go with the welded socket you only have to worry about the drill hole.
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The Following User Says Thank You to PeeBee For This Useful Post:
the evil twin (10th December 2018)
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11th December 2018, 12:59 AM
#8
Expert
@Hodge it's just a temporary setup until I get a patroldocta airbox.😁
http://www.nissanpatrol.com.au/forum...il-Cab/&page=3
Yeah I will probly go pre turbo. Cause I have that blanking plate it makes it pretty easy.
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The Following User Says Thank You to JackoGQYoot For This Useful Post:
Hodge (11th December 2018)
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12th December 2018, 06:40 PM
#9
Expert
Well it looks like my manifold will be coming off now, I am now practically taking half the engine appart lol
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12th December 2018, 07:17 PM
#10
Patrol God
Originally Posted by
First Pooy
Well it looks like my manifold will be coming off now, I am now practically taking half the engine appart lol
What's happened mate ?
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