AFC Moded question
#1
#2
AFC (Aneroid Fuel Control) Modification:
afc mods (lots of pics) - DieselRam.com
Tuning the AFC is one of the most important steps to tuning your truck for the greatest and most efficient power, everyone's always talking about it so if you lurk enough you'll learn a lot about it. In essence this is the deal:
-On the back of the AFC there is a little cover (you'll know what I'm talking about when you read that AFC article up there) that covers the pre-boost fueling adjustment. (Note: Some refer to this as the "Smoke Screw.") Its proper function is to allow a set amount of fuel in to light up the turbo, and after that point the spring load on the "starwheel" is what determines how fast fuel will come in with relation to boost pressure. Both of these things are adjustable.*
When adjusting these settings you should be going for (as far as pre-boost) the least amount of fuel it takes to light the turbo with minimal smoke, and enough tension on the spring to bring fuel in at a rate that will only lightly haze during full throttle.
These adjustments are very fine, as in 1/4 to 1/8 turns with the pre-boost adjustment. Going more than that at a time will bring you out of the sweet spot. Proper AFC tuning article to come...
Hope this helps a bit
---AutoMerged DoublePost---
https://www.dieselbombers.com/5-9l-1...ning-mods.html
Also
afc mods (lots of pics) - DieselRam.com
Tuning the AFC is one of the most important steps to tuning your truck for the greatest and most efficient power, everyone's always talking about it so if you lurk enough you'll learn a lot about it. In essence this is the deal:
-On the back of the AFC there is a little cover (you'll know what I'm talking about when you read that AFC article up there) that covers the pre-boost fueling adjustment. (Note: Some refer to this as the "Smoke Screw.") Its proper function is to allow a set amount of fuel in to light up the turbo, and after that point the spring load on the "starwheel" is what determines how fast fuel will come in with relation to boost pressure. Both of these things are adjustable.*
When adjusting these settings you should be going for (as far as pre-boost) the least amount of fuel it takes to light the turbo with minimal smoke, and enough tension on the spring to bring fuel in at a rate that will only lightly haze during full throttle.
These adjustments are very fine, as in 1/4 to 1/8 turns with the pre-boost adjustment. Going more than that at a time will bring you out of the sweet spot. Proper AFC tuning article to come...
Hope this helps a bit
---AutoMerged DoublePost---
https://www.dieselbombers.com/5-9l-1...ning-mods.html
Also
Last edited by Dude_57; 09-16-2010 at 09:29 PM. Reason: Automerged Doublepost
#7
Welcome canaderson.
AFC stands for Aernoid Fuel control
Theres a bunch of info in this thread - https://www.dieselbombers.com/5-9l-1...ning-mods.html
**Make sure you check out the link in the first post**
AFC stands for Aernoid Fuel control
Theres a bunch of info in this thread - https://www.dieselbombers.com/5-9l-1...ning-mods.html
**Make sure you check out the link in the first post**
Last edited by Dr. Evil; 10-11-2010 at 11:24 PM.
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