Alright, as I've mentioned I'm putting gauges in finally. I got the DiPricol pyro and boost all wired up and installed in the overhead this weekend but ran out of time to drill the firewall and get SD's manifold installed and my thermocouple installed.

I talked with a local diesel mechanic who I respect very much, and he had a new spin on the pyro probe location. He felt that pre-turbo was of course a good method, but monitoring only one bank concerned him. He said that a savvy gauge watcher should theoretically be able to tell when an injector goes bad because the EGTs will read 50-75° hotter than usual. (I assume this is to extra fueling?)

So now I'm really up in the air about where to put my probe. I'm actually thinking about puting one in each manifold and post turbo to have all my bases covered! Is that just rediculous? I'd rather not spend the money right now, but I want to do this right.

They make A-pillers for the passenger side. You could put a probe at each cylinder.

LOL...ok now that's anal!

Autometer does have a dual channel pyro kit.. You just flip between the probes. You could accomplish the same thing with a DPDT switch and two probes, or for that matter, 9 probes. 1 for each cylinder and 1 post. :) Now thats anal.

I think you would be ok with one pre turbo and one post turbo...

Dan

If you used a switch, I believe that it would have to be a very special switch. The wires from the probe are of different materials. If you look closely at each of the connectors that are used for connecting the probe to the CM, you should find a stamp on them which indicates the material and they are different (Fe & FeCn ??). Best check with a pyrometer tech before you invest time and money.

Yeah, if I'm gonna do it, I'd probably just put in another gauge so that if one setup failed, etc. I'd have a backup to ensure I don't cook anything.

Has anybody put their pyro in the driver's side manifold--I haven't even looked at it closely yet to determine how hard the install will be.

Post turbo should be a piece of cake if I decide to do this in addition to the pre-turbo probe, right?

Way put one post turbo? The hotest part of the exhuast is pre turbo.

Greg

Yeah, if I'm gonna do it, I'd probably just put in another gauge so that if one setup failed, etc. I'd have a backup to ensure I don't cook anything.

Has anybody put their pyro in the driver's side manifold--I haven't even looked at it closely yet to determine how hard the install will be.

Post turbo should be a piece of cake if I decide to do this in addition to the pre-turbo probe, right?


Drivers side manifold is not too bad, that where I put mine in at to keep it out of sight. Go in behind the hard brake lines and you have a clear path to the tail end of the manifold.

You will want to get a proper thermocouple switch to read multiple points with the same display. The materials in the K type thermocouple that pyrometers use are Chromel (+ yellow wire) and Alumel (- red wire). You can get pretty much anything thermocouple related from Omega Engineering: http://www.omega.com/

I understand why post-turbo is not very accurate from a performance point of view and that's why I haven't considered it before now.

Several members here, including our resident turbo master-of-disaster Got Juice have noted that these D-Max turbos will soak up a tremendous amount of heat-somewhere in the 500° range when the engine is heavily fueled.

I'm thinking about doing a post turbo/1 pre turbo or a pre-turbo in each manifold so that I can keep closer tabs on things and have another indicator of injector failure. Does this make any sense now?

I'm kinda leery of these ****ty injectors since I've already lost one. I absolutely do not want to wash my oil out with diesel!

LOL

Master of BOOM!):h


I run preturbo and post turbo probes.

Post less preturbo gives me my 'working cooldown' turbine temperatures.

I make it a point of not shutting my truck off after pulling until i see 350F or less preturbo AND 380F or less Post turbo.

When parked the preturbo gauge cools off faster than the post turbo gauge does after a good hard pull.

Anyhoo.... Westach makes a dual channel dual gauge pyrometer, as well as a 3 channel gauge if you are interested in a single gauge that can display 2 or more channels at the same time.

You definately have the right idea with your gauges!

Hey coalbucket:

Do you have any pics of that driver's side thermocouple install? I'm having a hard time deciding right where one would work well on that side.

At what point do you guys need a co-pilot to watch the gauges? :D Later! Frank

Don't need no stinking copilot!

Ok, if I fill the A-pillar, overhead (Trippin's + above mirror), and steering column, that is a potential for 10 gauges. I might not have time to drive then.

I think if you call EMD, they will tell you of their supplier of multi point thermocouple readers. ):h

We have all 20 cylinders monitored on each diesel. They all run within 50°F of each other.

They run about 850°-1000° at full load with 35lbs of boost.

How about a twin pyro in one guage? http://www.hewittindustries.com/instruments.htm

Steve