Compression Ignition Addict
Join Date: Nov 2010
Location: Santa Barbara, CA
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Lets talk acceptable EGTs
So this is my first "fast" truck with a pyro, I have driven big trucks with pyros that I pay attention to while pulling a grade loaded for example, but never on a truck that I would do 1/4 mile runs in.
I recently installed my pyro in the driver side manifold in the end of it like suggested by the pix on Diesel Manor. Initially I wanted to install it in the down pipe right past the turbo like most big trucks I have seen have them, but the general consensus on here is to install in the manifold so I did.
My question is what is acceptable to see?
I have seen it rise to 1300-1400 when doing a 0-100mph run on flat land and the moment I let off it drops to 700 then 500-600 a few seconds later and continues to cool as I coast. What got me worried, last nite I was driving up a grade on a two lane highway going 65 or so pulling 850 degrees or so. I came up behind a loaded semi and stabbed it to pass him. The truck did so cleanly with ease but when I glanced at the EGT as I was getting back into my lane I saw mid 1600 degrees and let off the gas, and it promptly dropped down to 800 and then kept dropping as I coasted for a bit, then got back on it to keep my speed up and it stayed at 800 as it was before.
Are temps that high acceptable or should I not be stabbed passing up a grade, maybe stay part throttle?
I am running Erics Extreme Street and Race tunes, generally EGTs behave the same for both of those.
2006 F250 FX4 Crew Cab - ARP Studs, EGR Delete, Edge Insight w/pyro, SCT X3 with SRL+
2005 Mustang GT - slightly modded
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1967 M35A2 Deuce w/winch FOR SALE!!!