I’m driving from Virginia and now in Colorado. EGT readings are higher all the time, now maxing at 700C. Altitude sickness?
High EGT values
- Thread starter jblueridge
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The mechanical diesels will run rich at altitudes higher than they have been tuned to. I've heard of high-altitude compensators which I think act like boost compensators but I'm not totally sure.
On previous trips I turned the fuel down or understood that my performance was limited.
On previous trips I turned the fuel down or understood that my performance was limited.
- Thread starter
- #3
Thanks
I’m gonna go with Slow Mode.
I’m gonna go with Slow Mode.
Apples to Oranges, but I like to keep my EGT's below 1,200F for sustained periods of time. 1hd-fte, Pyro mounted Pre-Turbo. If I'm on a mountain pass, it'll usually go to 1,200F if I put my foot down on the pedal.
This is also here in Colorado.
This is also here in Colorado.
- Thread starter
- #7
13BT with Gturbo.
What’s your water temp? Intercooler would definitely help although we know how much fun that is in a narrow nose with a 13bt.
Mine runs way cooler, but I maybe drive slower…since the turbo swap I don’t think
I’ve been above 1000f pre turbo.
JDM Journeys
Moderator
I live in the foothills.
1hz, TMIC, altitude compensator retrofitted, side exit exhaust: My max EGT post turbo is around 785°F if I really push it with little trailer behind me. But to achieve that I keep it really really lean. Virtually no black smoke ever, but I start to run out of jam above about 3200rpm. Typical day to day on the highway sees between 550 and 625. Around town is 450 to 550 Fahrenheit.
But it certainly doesn't accelerate much better than n/a until you reach third. For me it's been a great trade off and my EGT gauge is no longer the focal point of long drives.
If you're only temporarily at altitude I'd be using a pristine air filter and keeping speeds lower, revs higher.
1hz, TMIC, altitude compensator retrofitted, side exit exhaust: My max EGT post turbo is around 785°F if I really push it with little trailer behind me. But to achieve that I keep it really really lean. Virtually no black smoke ever, but I start to run out of jam above about 3200rpm. Typical day to day on the highway sees between 550 and 625. Around town is 450 to 550 Fahrenheit.
But it certainly doesn't accelerate much better than n/a until you reach third. For me it's been a great trade off and my EGT gauge is no longer the focal point of long drives.
If you're only temporarily at altitude I'd be using a pristine air filter and keeping speeds lower, revs higher.
- Thread starter
- #11
Glad to see this in print... that was the theory I went with all summer.
back in Virginia, low altitude, I find it hard to reach 650C.