Engine Pyrometer probe placement - Luxury Coach Lifestyles
Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
Reply
 
Thread Tools Display Modes
 
Old 03-04-2009, 03:43 AM   #1
encantotom
Senior Member
 
encantotom's Avatar
 
Join Date: Mar 2007
Location: mesa, az
Posts: 1,375
Default Engine Pyrometer probe placement

hi all,

i am going to put a pyrometer on my 8v92. most of the gauges require calibrated to the wire harness. i bought a Isspro ev series that uses standard 16 gauge wire according to their factory tech guy. however, it has an amplifier up front so is not switchable between dual probes back in the engine area. if i was going to do twin probes (one on each pipe from the exhaust manifold to the turbo, or preturbo) then i will have to do dual gauges. i looked at lots of them and picked the gauge i liked.

so, for those of you that have pyrometers, do you have one or two, and where are the probes at? for those of you with one, is it preturbo or postturbo and where is it at?

what temperatures do you read and where is your probe located?

thanks

tom mccloud
__________________

__________________
2002 45'8" Coach
2008 Honda CRV toad

https://www.newellclassic.com/forum/album.php?albumid=8
encantotom is offline   Reply With Quote
Old 03-04-2009, 06:43 AM   #2
fulltiming
Senior Member
 
fulltiming's Avatar
 
Join Date: Feb 2006
Location: Texas
Posts: 1,558
Default

Tom, hopefully someone with a pyrometer equipped Newell will respond. If not, you might check on either the Yahoo groups DetroitDiesel (which is specifically for two stroke Detroits) or the Yahoo groups WanderlodgeForum.
__________________

__________________
Michael and Georgia Day
1992 Newell 43.5' #281
8V92 DDEC-2, HT740
PT Cruiser GT with Remco Transmission Pump
https://newellowner.com/newell-photos/
fulltiming is offline   Reply With Quote
Old 03-04-2009, 12:50 PM   #3
wallyarntzen
Member
 
Join Date: Oct 2007
Posts: 17
Default

Tom,
I'm going into the mountains today but I do have a peromitor. You can come over and look at the instalation if you like. If you need to see it today just come over and open the engine doors and help yourself. I will be busy all day and into the evening.
Tomorrow I should be here all day.
Wally
wallyarntzen is offline   Reply With Quote
Old 03-05-2009, 12:09 PM   #4
ttikalsky
Member
 
Join Date: Mar 2006
Location: Minnesota
Posts: 43
Default

Have a post turbo pyrometer. Normal readings 200 - 400 with max so far of 600. Have you considered using a switch and/or relay to share a gauge?


Troy Tikalsky
Waconia, MN
1986 Newell 40'
ttikalsky is offline   Reply With Quote
Old 03-05-2009, 02:22 PM   #5
encantotom
Senior Member
 
encantotom's Avatar
 
Join Date: Mar 2007
Location: mesa, az
Posts: 1,375
Default

yes i did consider that. in fact i am doing that for dual new engine temp sensors i am putting on a digital temp gauge to replace the hard to read analog one i have.

i called the manufacturers on the gauges i liked on the ability to switch between two thermocouples. the problem is that some of the gauges dont allow that and the ones that do require a calibrated gauge and wiring harness that i didnt want to spend 200 bucks on or wait for them. i only had a short window of two evenings to use the bus lift to get underneath.

so the gauge i am using, a isspro EV gauge has an amplifier you mount up front and will allow regular 16 gauge wires (2) to be run from front to rear with no calibration issues. their other gauges requried special harness and some of the other gauges wouldnt work at on on long runs like our units require.

as usual, i do things the hard way

later

tom
__________________
2002 45'8" Coach
2008 Honda CRV toad

https://www.newellclassic.com/forum/album.php?albumid=8
encantotom is offline   Reply With Quote
Old 03-07-2009, 02:25 PM   #6
JohnC
Member
 
Join Date: Aug 2006
Location: Grove Oklahoma
Posts: 89
Default

My preference is placing the sensor a few inches downstream of the turbo outlet.

I have found that pulling long grades at higher altitudes, such as Monarc Pass in Colorado,noramlly necessitates reduced throttle due to high turbo temps
JohnC is offline   Reply With Quote
Old 03-07-2009, 02:36 PM   #7
fulltiming
Senior Member
 
fulltiming's Avatar
 
Join Date: Feb 2006
Location: Texas
Posts: 1,558
Default

Thanks John. We appreciate your input.
__________________
Michael and Georgia Day
1992 Newell 43.5' #281
8V92 DDEC-2, HT740
PT Cruiser GT with Remco Transmission Pump
https://newellowner.com/newell-photos/
fulltiming is offline   Reply With Quote
Old 03-07-2009, 03:04 PM   #8
encantotom
Senior Member
 
encantotom's Avatar
 
Join Date: Mar 2007
Location: mesa, az
Posts: 1,375
Default

hi john, thanks for commenting. do you mean after the actual turbo housing and on the pipe that goes to the exhaust? or tapping into the actual aluminm turbo housing.

thanks again,

tom
__________________
2002 45'8" Coach
2008 Honda CRV toad

https://www.newellclassic.com/forum/album.php?albumid=8
encantotom is offline   Reply With Quote
Old 03-08-2009, 03:15 PM   #9
JohnC
Member
 
Join Date: Aug 2006
Location: Grove Oklahoma
Posts: 89
Default

Much cheaper to screw-up the pipe then buying a new turbo housing.
JohnC is offline   Reply With Quote
Old 05-01-2009, 10:13 PM   #10
encantotom
Senior Member
 
encantotom's Avatar
 
Join Date: Mar 2007
Location: mesa, az
Posts: 1,375
Default

some results.

i put the pyrometer probe about 5 inches from the turbo, which is as close as to the turbo as i could get the welder in to weld the collar on the pipe.

it works great. wally and i drove to texas together and our pyro temps compared very closely. on a straight and level road with low boost, it was about 350-400 degrees. going up a moderate grade it would go up to 700 degrees or a little more. very close to what wally saw as we compared on the CB as we were driving for several days. so i am please with the results. what i never rembered to do was to shoot the temps with the IR temp gun to see pre and post turbo temps. i will try to remember to do that yet.

tom
__________________

__________________
2002 45'8" Coach
2008 Honda CRV toad

https://www.newellclassic.com/forum/album.php?albumid=8
encantotom is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Newell Coach Corporation or any of its affiliates. This is an independent, unofficial site.


All times are GMT. The time now is 01:24 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
×