Cummins Conversion Update
Will, thanks for the compliment.
*Good to see you are doing well Jeremy.
Anyway Jeremy, if you get a few minutes to update us, I'd love to hear the resolution to the 60% issue and in general how things have been going.
Ford Trucks for Ford Truck Enthusiasts
Anyway, back on track with the thread, the truck is still doing great. About 36K miles since the conversion and I'm still loving it. I have been through a few turbo swaps, and think I have finally found one I am happy with. It's a 62/68/12 from ED, if anyone is wondering. The original HTT spooled slower than I wanted and still ran hotter than I wanted. Switched to one ED turbo, a 64/68/12, and it spooled just a tick slower than what I was still after, so we swapped compressor side to what I have now and it's been great. Spools well and runs cool. Towed this load, grossing just over 26K pounds, without missing a beat and rarely even hitting 1250 on the pyro.
Only other slight issue I've had is the high pressure line that connects the second CP3 pump to the fuel rail developed a very small crack and had to be replaced. The new line (and what all of the Evil Twin setups are now using), is of a much, much higher quality than what the old one was, and I believe made by the same supplier that provides the OEM lines to Cummins.
Oh, and in the pic, you'll see the truck has some new tires and wheels. Finally got the different Moto Metal wheels I was wanting and put some 325/65-18 (35's) Mickey Thompson MTZ on it...which are great tires, except on ice. Otherwise, they are doing good in rain, mud (obviously), snow (without ice), and are relatively quiet on the highway.
To answer the question about the 60% issue...someone is going to have to remind me what that was all about, because I honestly don't remember what was going on. I think the truck is making full power right now though. Had it on a dyno at a truck event over the summer and it laid down 550 HP and 1105 ft-lb. I'm told that dyno also reads lower than most, but those are the numbers I have so I can't claim any higher than that.
I really don't have any further plans for it at the moment. If time and money allow over the summer, I would still love to put a compound turbo setup on it, but not sure if funds are going to be there. Going back to school has necessitated that I be on a pretty strict budget, so I'm not getting my hopes up for it.
Hope you all are doing great!
That picture is a little deceiving, as it wasn't really sagging all that much. It's kind of sitting at a funky angle in the parking lot in that pic. I do have a set of Firestone Work Rite helper springs on it, which did help a lot.








