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Anamoose, ND | Here are a few pics of the dual line fuel mod I did to our 855 Cummins. It is suppose to give a more even pressure to the injectors and give a little boost of horsepower.
 (IMG_0089.jpg)
 (IMG_0096.jpg)
Attachments
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 IMG_0089.jpg (95KB - 825 downloads)
IMG_0096.jpg (98KB - 795 downloads)
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Mid-Missouri | Which 855's would this help. Big Cam III 88 model with 310 hp in 936 Versatile? I have heard about this but never saw pics. Is that brake line you used? Any details on attaching at ports? |
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Anamoose, ND | This "should" help any 855 cummins. I was told this mod was factory on newer N14's. On a 855 the fuel is fed into rear head and the return also comes out the rear head. What the mod does is feed the engine fuel from each end. The thought is that the back head gets the most pressure but the pressures in each head gets less and less as you go forward. This "should" even out the pressure. I used a 20 inch piece of steel brake line. I used a Tee fitting coming out of the fuel shut off solenoid. On the front head you will see two plugs, remove the bottom plug and run the line to here. I removed the fan assembly and mount to get at the plugs easier. The guy from Pittsburgh Power claimed this should add 15 to 20 horsepower. I know the engine does run smoother with the mod installed, we will find out in a few weeks if it pulls any better. |
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NE SoDak | would it help with the starting issue in the 855s? |
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NW KY | CND, do you have an update for us by chance? Wondering if it helped out much. |
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North Liberty and South Bend, Indiana | So do we have an opinion on the mod yet? |
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855 Cummins Dual Fuel Mod
