What is the stock egt when driving at 60-65mph, loaded and unloaded. I am looking for a baseline to make sure my pyro is reading correctly.


My pyro shows 400-700 depending on grade, unloaded. And 400-1100 loaded (7500pd ) depending on grade.

That looks about right..........if you get into it you may see 900 or so........

Thanks for the reply.


I forgot to ask. What is an exceptable temp to run at for a long period of time. Is 1000 degrees substainable without damage?

Running about 5 psi boost on flat ground doing 65 to 70 mph I would be pretty steady at 700°F. The most I've been able to get from both gauges is 21 psi boost and 1200°F. I have been told by other users on this forum that a stock engine will achieve over 1300°F when towing a good load. I roll over the scales around 9,100 lbs.

Radvans, what are you driving?

curious....where's the bunG? http://www.dieselplace.com/forum/smileys/smiley1.gif

02 (chevy) 6.6l crew 4x4 6"lift 315's hypertech

radvans:


Is your EGT probe a pre-turbo or a post turbo instalation? I run BD-Powers Intimidator and have their X-Monitor to keep an eye on boost and EGT. My EGT probe is post turbo in the down pipe. Stock unloaded 65-70 = 650 - 700' F. Loaded with our Okanagan 10.5' slide-in camper and the Intimidator set at the 55HP setting (recommended for tow/hauling) on some pretty good climbs around BC max peak I've ever had was 905'F and 21 boost............SWH...

Installed pre-turbo, in the manifold, per the instructions from this site.


I have though of installing another after the turbo. Where on the downpipe did you install it. Was it hard to get to?

Installed pre-turbo, in the manifold, per the instructions from this site.


I have though of installing another after the turbo. Where on the downpipe did you install it. Was it hard to get to?





I installed the probe just below the elbow on the downpipe. It was a very easy place to install the probe.....................SWH...








Edited by: shuffman

60 to 65 mph at about 6 pounds of boost normal grade about 650 degrees. About 70-75 mph about 10 pounds of boost about 800 degrees. Full Throttle upgrade about 900-950 degrees. Sounds like your pyrometer is reading correct. I run isspro boost and pyrometer guages. My guage is mounted in the exhaust manifold.

I run about 550-600 deg F at 2lbs boost on flat ground unloaded at 60 mph at about 1850 RPM's.
Since I just put the gauges in about a month ago, I have not done any pulling or loaded runs.
The truck is stock. weighs 7010lbs.

I installed my probe directly into the passenger side exhaust manifold. To do this, you pull the push in holders holding the inside fender well cover and remove it. This gives you a clear view of the exhaust manifold. For those faint of heart you can remove the exhaust manifold before you drill it to remove any cast iron shavings that spill inside (pain in the rear to do this). Or you can do what I did, drill a pilot hole into the exhaust manifold with the engine running (1/8" drill). Be carefull when punching through to take it easy. The exhaust gas pressure will blow the chips out. Next use the proper size drill and tap to the proper size of the probe threds. Drill or tap always with the engine running to blow the chips outward.
By placing the probe in this position you will always get the most accurate measurement of EGT. There is a temperatuer drop before the gases reach the turbo so you may be lulled into a false reading. I belove that most guage makers recommend that the probe be inserted as close to the exhaust manifold as possible.
My truck was showing temps as high as 1400* under load on a steep hill in third above 2600 RPM pulling my fifthwheel. A K&N intake and a 4" exhaust system dropped this down to about 1250* which is where I wanted it. The bonus is I'm guessing about 40 HP and 50 Ft Lbs torque. I also picked up about 1 mile per gallon to boot. More noise, you bet, but it's worth it.

Brad