Deletes
#16
05-19-2019, 01:06 PM
Specifically to a powerstroke it is able to read individual injector flow in grams per second and can compare that with engine load sensors such as your mass air flow and map sensor and then create a calculation of lean or rich. Again nox sensors read oxides of nitrogen to determine dpf efficiency not to calculate fuel. Also again, if you took away the trucks ability for it to change a/f ratio how do you suppose it would run considering a “stock” truck is changing that ratio literally every single second?
The bottom line is still colder climates = lower fuel mileage for my truck and 3 of my friends deleted SDs & Durumax’s when its cold out.
#17
05-19-2019, 01:18 PM
For places that get winter fuel diesel, winter fuel is a percentage of #1 Kerosene added to the normal #2 diesel fuel. Normal #2 has around 140,000 BTU's a gallon and #1 has around 130,000 BTU's a gallon. Therefore, the BTU content is less if you are running a 20% #1 / 80% #2 mixture. I've been running a diesel for 25 years and it's pretty easy to tell based on mileage when stations switch over to winter blend. Mileage goes back up in springtime.
No real mystery why the mileage changes.
No real mystery why the mileage changes.
#18
05-19-2019, 01:40 PM
Yea I’m in the same boat with my stock truck. Once October hits I lose 2-3mpg especially depending on how long I let it warm up for before I even move it out of the driveway. Kind of standard up here in the northeast.
#19
05-19-2019, 02:12 PM
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#20
05-19-2019, 02:32 PM
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Not sure about the 6.7 but when I deleted my 6.4 I did a 5” straight pipe and it wasn’t loud at all, not like a Cummings, all you could really hear was the turbos.
#21
05-19-2019, 04:05 PM
i do have a dually so its a long bed putting the exhaust tip further away from the cab. But i doubt you will hear anything in the cab.
#23
05-19-2019, 08:22 PM
Its just the massive amount of exhaust exiting the pipe.
I cant hear it from in the cab unless the windows are down.
I don't think theres any way around the air swooshing sound. Pretty sure even with the stock exhaust it still makes close to the same sound.
#24
05-19-2019, 08:25 PM
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