Compression Ignition Addict
Join Date: Mar 2011
Location: Reno NV
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I'm adding things daily to my new e99 F350 DRW and I'm getting some interesting observations now that I have my EGT gauge hooked up.
Stats: PHP chip, set to 80hp daily driver. This is supposed to be an economy setting.
The truck has a 4" exhaust, but unfortunately I had to have a cat installed.
EGT probe is installed at the back of the driver side manifold.
So on my test drive I was getting egt temps around 350° to 500° just toodling around my neighborhood, keeping speeds under 40. Then I got on an open stretch of road and kicked the speed up to about 60, but not an aggressive acceleration, about the same as getting on the freeway. Temps got up to 800° to 1000°. Then I went up the steep hill, WOT and got up to about 80 mph. The egt shot up to 1,420° but dropped down into the 1,300°'s when it got into 4th gear and the TC locked.
My only concern is the temp spike with no load. I'm going to throw a heck of a lot tougher workload at it when I get to cutting wood. I'll be towing a 16' trailer and going up a long and very steep winding mountain road.
Now for my test tonight I left it in the 80hp daily driver setting. Will my temps be better controlled when I'm towing heavy loads and have the chip set to one of the towing settings?
What's the highest I should let the exhaust temp get to before I need to intervene?
I put an aftermarket cat and the exhaust shop said that they type I put in isn't prone to clogging, but I'm not so sure it isn't contributing to the higher temps. I had it welded in but it's going to have to come out when I put the exhaust brake on so I think I'm going to go ahead and punch it out and then have it welded back in. The smog guy shouldn't be able to tell. I think all they do is a quick visual look for the bump and nothing more. Is there any other way for them to tell?
Be gentle, it's my first PowerStroke.
E99 SD 7.3L CC DRW 4×4
PHP Phoenix 6 Position Chip
aFe Stage II Intake
Edge Insight CTS
Edge EAS EGT Probe
BD Exhaust Brake
Pierce 2T Dump Bed
PacBrake Air Bags (Rear)
Viair Onboard Air Compressor
Escort 9500ix Radar Detector (Worth it's weight in gold)
Cobra 29LX CB.