Hi folks,
A little while ago I installed a Hydra chip in my ‘99.5 7.3. I’m running pretty conservative tunes from the free PHP library (25 tow, 40 tow, 65 tow) with factory injectors. I wanted some more power for merging into the highway with my trailer, and PHP delivered. Truck runs fantastic and shifts great.
Recently, however, I got a letter in the mail from Colorado Air Pollution Control saying that a “concerned citizen” had reported my pickup as “emitting an excessive amount of black smoke”.
Now, the last thing I want here is to go around “rolling coal” and giving my fellow diesel owners a bad name. I have downloaded the correct tunes for my box/hex code, and my EGTs never get above 1300 or so pre-turbo here at 6500 feet of elevation. I’m running a brand new 6637 air filter.
I’ve attached some photos taken out of the passenger window to show you guys what I’m talking about. 1st pic is getting on the freeway at about 3/4 throttle with an empty truck. 2nd pic is accelerating from 10 mph with a 5500 lb trailer. Both times in the 65 hp tune. Naturally, a tuned 7.3 is going to be a little smokey, but is this a normal amount?
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A little while ago I installed a Hydra chip in my ‘99.5 7.3. I’m running pretty conservative tunes from the free PHP library (25 tow, 40 tow, 65 tow) with factory injectors. I wanted some more power for merging into the highway with my trailer, and PHP delivered. Truck runs fantastic and shifts great.
Recently, however, I got a letter in the mail from Colorado Air Pollution Control saying that a “concerned citizen” had reported my pickup as “emitting an excessive amount of black smoke”.
Now, the last thing I want here is to go around “rolling coal” and giving my fellow diesel owners a bad name. I have downloaded the correct tunes for my box/hex code, and my EGTs never get above 1300 or so pre-turbo here at 6500 feet of elevation. I’m running a brand new 6637 air filter.
I’ve attached some photos taken out of the passenger window to show you guys what I’m talking about. 1st pic is getting on the freeway at about 3/4 throttle with an empty truck. 2nd pic is accelerating from 10 mph with a 5500 lb trailer. Both times in the 65 hp tune. Naturally, a tuned 7.3 is going to be a little smokey, but is this a normal amount?
