Maybe i'm wrong but would't the best place to put the pyrometer be in the down pipe after the turbo? seems to me if you put it in the right manifold it is'nt very accurate because your only reading one side ! just want some opinions thanx P.M.

If you will do a search I think you will find all the information you need to know. Oh and by the way... Welcome...

they say to get as close the the cylinders as possible. if you install post turbo you your temps will be off about 100 - 200 degrees.
dan

I had mine installed post-turbo. The diesel performancce shop is just down the street from the office, but still couldn't be there to watch. I was 'anal' about steel shavings getting into the turbo. Having it post-turbo just make me feel better about the whole install. What DWRAT says is right, danger temps post-turbo are around 1100 degrees so I was told. Pre-turbo temps are about 200 to 300 degrees higher. Don't see where that should be a problem as long as it is understood up front.

Oh yea, welcome again.

The turbo is a heat engine that works across a large band of temp/flow/rpm. A pyro post turbo will have a lot of the actual heat "eaten up" by the turbo, and not at a linear or predictable rate. It's also a poor summation of temps from all the cylinders after being combined, mixed and cooled by the turbo, with quite a bit of time delay added. As a secondary pyro, not too bad. As the primary or only pyro, not too good. Although one pyro in one manifold only sees 4 out of 8, it's getting a nearly instantaneous reading on that bank of cylinders and the "right out of the exhaust valves" straight poop. Now, I, on the otherhand, have my Isspro pyro on the A-pillar installed in the passenger manifold at the "Hoot Position" and my Edge Attitude pyro is in the bottom rear of the driver's manifold, so I am reading the rear of both exhaust manifolds and sensing both sides of the engine pre-turbo.

Eventually I plan to add two more pyros to the one I already have. :)

Then I'll have one in each bank pre-turbo and one post-turbo so that nobody can say I'm not correctly monitoring EGTs!

Maybe i'm wrong but would't the best place to put the pyrometer be in the down pipe after the turbo? seems to me if you put it in the right manifold it is'nt very accurate because your only reading one side ! just want some opinions thanx P.M.

the idea is to monitor the temps "before" it gets to the turbo. If you monitor it after you could be too late in seeing a problem and already fried your turbo.

search is your friend...

Idle_Chatter

How different are your readings right to left manifold under pulling conditions. When we did the testing we saw the passengerside about 20 degrees warmer. Just wondering what your seeing. This is why we recommend the passengerside manifold for a location for a preturbo pyrometer probe. Put it in the hottest place and know everything else is cooler.

Idle_Chatter

How different are your readings right to left manifold under pulling conditions. When we did the testing we saw the passengerside about 20 degrees warmer. Just wondering what your seeing. This is why we recommend the passengerside manifold for a location for a preturbo pyrometer probe. Put it in the hottest place and know everything else is cooler.

The pyros do vary. The Isspro responds a bit slower than the Edge. The Isspro runs about 15 to 30 degrees hotter during acceleration, under steady load they can match pretty closely (as closely as you can "extrapolate" the Isspro gauge). One strange thing is how quickly the driver's side (Edge) drops off after cresting a hill or coasting. The driver's side can be as much as 150 degrees less in coast and idle. I wonder if it has anything to do with that constriction in the driver's manifold just forward of the pyrometer location acting like a venturi?

I saw the same thing so I moved a probe to the front of the driverside and it was pretty close to the rear of the driverside reading. So at least you are seeing pretty much what I did during testing. I used lab equipment with open tip thermocouples so we got very accurate readings. If people in the field saw how fast an open tip thermocouples moved after looking at aftermarket units it would scare most people. Just imagine the pryo moving as fast as the tach during a free rev in park! The only problem with open tip units is they do not last very long before they need to be replaced but for proper testing they are a must.

Although I'm certainly no expert, I'm amazed at how fast my DiPricol reacts! Compared to other pyros I've used, it's much quicker. In a lot of cases, it moves just as fast as my tach does.

Guys... I am new here so I am sorry if I am talking things off subject a little but I just got my new truck and am selling my old one... I had never chipped the old one but with the new one I am planning to get the Edge and then at this point the dealership is telling me about screwing up my warranty... When you install the EGT can they tell it is for the edge or are all EGTs the same (so they cannot tell that it has been chipped). They actually suggested the hypertech programmer... I just want to know what I have to do to be able to remove all trace of the edge.

Drew