Talking to the guys at Sun Coast Converters here in FWB about gauges today....

I asked him where I should put my pyro pickup, he said the last two he's done that he drilled & tapped the "O" where it says hOlset on the turndown downpipe thing (post turbo) but the EGT's would read a little lower than actual because of it being post turbo

I'm planning on doing mine the same... suggestions or pro's/con's of this setup?

Have you guys tried out the boost bolt on the 6.7 yet? work good?

 

Put it directly on the manifold pre-turbo. A post turbo pyro is pretty much worthless, it lags behind and isnt accurate. Take the time and do it right, you'll be glad you did.

 

X2 on that!

 

Agreed, I put mine pre-turbo just slightly towards the rear from being centered in the exhaust manifold. What kind of temps are you guys seeing? Under normal driving conditions around town or on the highway, unloaded, I am seeing between 850 and 1100 degrees. The highest I've seen was 1253 while pulling a 6K lb boat over Vail Pass on a very long and steep grade holding the pedal to the floor. And it hit that for only a few seconds, the rest of the long pull it was around 1200-1210. Some people say they can tell when the rig is in regen by watching their EGT's. I've never seen anything different than what I described above and no way to tell if it's regening.

 

I installed the pyro on my Dad's 6.7L just behind the breather tube as it passes the manifold. Normal cruising he's seeing around 1000 degrees.

MikeyB

 

Mine is installed towards the back of the manifold. I see 900 to 1000 normal driving. highest I've seen is 1250 maybe 1300 during regen, all to often in my opinion. The guy that installed my boost bolt said it worked but was a sob.

 

so did you guys pull the turbo when drilling the hole or what?

 

Nope, just sealed off the tailpipe with duct tape and ran the engine.

MikeyB

 

EDIT I didn't read the post very good this install is for a 5.9..

Here is how I installed mine. http://www.dieselmanor.com/diy/CMS3-gauge/G3image1.htm

 

hmm thats interesting. I know that the 6.7 will engage the Exhaust brake at idle when engine is cold, i wonder if that would be sufficient, but i would end up doing both just to be safe i guess. Thats still pretty scary though... How hard is it to get a drill to the manifold on a 6.7?

 

Go to page 7 of this forum (August 8th) and find the thread discussing install of EGT probe. There are pictures there I posted showing the pyro installed on a 6.7. The pictures came from Quadzilla, my pyro end up slightly further to the rear to clear the pipe you see in this picture.https://www.dieseltruckresource.com/...d.php?t=163134

I always pay my local diesel shop the $50 to drill and tap the manifold. But I do watch them while they do it. They use a magnetized drill bit, they dip it in really gooey grease to catch chips, and they drill it very slowly and in steps, wiping it off and adding new grease each time. Once they get far enough in that they are about to punch through, they start the engine then finish drilling the rest of the way.

This is the 4th truck this shop has done for me pre-turbo, I've never had a problem.

 

I've put 2 in this truck and one in my old truck and I just let them idle. There is plenty of pressure to blow the shavings right out. I would say that taping over the tail pipe would be extra insurance and couldn't hurt. I don't think I'd want to pull a turbo off of a 6.7 just to put in a pyro, it looks a little more involved than the 5.9.

 

thanks mtnTrucker. I remember seeing that thread way back then but forgot about it. I dont think there are any local places that i would trust to do it.

 

I just installed mine this past weekend, pre-turbo. It's pretty easy, I was a little apprehensive at first but I just took my time and it worked out real well.
I used a heavy grease on the bit and tap with the engine running, no sweat,
just have a glove that handles the heat pretty good and safety glasses and you'll be fine.

 

What's the "boost bolt"?