Mechanical EGT Gauge Installation

[HammerDown15]

I got a good deal on an EGT gauge on Ebay ($30 w/pyro) so today I installed my AutoMeter EGT gauge. I searched and searched for a thread with pictures showing a good location for the EGT probe on the 6.4 but only found info on the 6.0. I drilled and tapped the hole on the driver-side exhaust manifold near the up-pipe. There is plenty of space there to work from underneath the truck. We will see how things go.

[peteoreo]

Why didn't you put it on the down pipe close to the turbo?????????

[HammerDown15]

Exhaust gases are never hotter than at the manifold. Post-turbo temps can be as much as 500* less than manifold temps. To accurately monitor exhaust gas temps, the best place for the pyro is pre-turbo and even better is at the manifold. Not to mention, it was pretty easy to access the manifold with a drill.

[colo_dually]

You always want EGT pre-turbo(s), the driver's manifold is a great place to do that. Reason for that is the turbo(s) will decrease that value, and you need the most accurate reading. Most 6.4L owners use the factory sensor via their monitor for EGT, that's why you don't see many threads on it. Some building a race or pull truck, may put one in each manifold.

What gauge and mounting pod did you use, and do you have pics?

[HammerDown15]

I got a good deal on an AutoMeter 3545. It is a 2.5" gauge 600-1600*. I would have preferred one that read lower temperatures but the price was right. I built a makeshift box for it that is sitting on the transmission hump right now. I have plans to get a dash mount but I haven't yet.