pilot injection 7.3 - Ford Powerstroke Diesel Forum
 
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post #1 of 6 Old 04-26-2011, 07:23 PM Thread Starter
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pilot injection 7.3

I was wondering if some one has created a way to use pilot injection on a 7.3.. where the injectors give a tiny amount of fuel on the compression stroke to create a pilot light in the cylinder essentially so when the main injection occurs it is almost silent, like the new common rail systems do. I love the sound of the 7.3 but I was just thinking about this the other day while turning my truck off in the drive thru, because if some one could write a tune for it i would love one. I just don't know if the idm or the injector solenoid could respond fast enough to preform the task... any thoughts?



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post #2 of 6 Old 04-26-2011, 07:28 PM
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most tuners offer a drive through position on their chips and thats about as close as it gets.
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post #3 of 6 Old 04-26-2011, 07:38 PM
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post #4 of 6 Old 04-26-2011, 10:44 PM
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the php whisper mode is nice, but the guy in the drive thru still couldnt hear me, LOL.
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post #5 of 6 Old 04-27-2011, 07:08 PM
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Pilot injection AKA "split shot" is used on 99-03 7.3's

Internal components are different than the single shot injector, allowing a pause in the injection cycle. By comparison, the split shot truck will be quieter than the single shot truck.

Common rail involves a bit more than just pilot injection. Common rail systems have higher fuel injection pressure, and can inject several doses of fuel in a single combustion event. The HUEI system was never designed for such a task.

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post #6 of 6 Old 04-28-2011, 08:14 AM
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Quote:
Originally Posted by alberta 7.3 View Post
Pilot injection AKA "split shot" is used on 99-03 7.3's

Internal components are different than the single shot injector, allowing a pause in the injection cycle. By comparison, the split shot truck will be quieter than the single shot truck.

Common rail involves a bit more than just pilot injection. Common rail systems have higher fuel injection pressure, and can inject several doses of fuel in a single combustion event. The HUEI system was never designed for such a task.
Its also used on late 96 and 97 CA emissions model trucks.

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