600 cummins edge/juice question

[BigBlackDodge]

Do any of you guys remember what size to drill and tap the hole for the pyro probe and what cylinder it needs to go infront of? I can't find it in the instructions?

 

[RKerner]

21/64

Do any of you guys remember what size to drill and tap the hole for the pyro probe and what cylinder it needs to go infront of? I can't find it in the instructions?

21/64 for the 1/8 NPT. I put it in front of #4 cyl which is how it is pictured in the instructions in the "Attitude" portion of the instructions. Use a pilot hole first. Some put it in straight up and down, I put it in at an angle that allows an 18V DeWalt to put the hole in. It actually is easier to route the T-couple wire back to the box doing it this way.

 

[BigBlackDodge]

Thanks, going to the shop now!

 

[CLAYTON]

I would put the probe where the 5th and 6th cyl meet just above the turbo flange at the bottom of the exhuast manifold. That's where your engine runs the hottest. Just a thought. There's no right answer on this one...

 

[BigBlackDodge]

Thanks again guys, got it on and it works great! Ran the 1/4 mile test and ran 91. 5 mph in 15. 8 seconds, not bad for a big 3/4 ton truck!