deerefanatic
Always learnin...
- Joined
- Aug 27, 2011
- Messages
- 566
Yep. You read this right. The Duramax is coming out!
After a lot of messing around, the LBZ left me walking. To be honest, I've not been crazy impressed with the LBZ since I bought it, and the fact that it has now failed me twice is the last straw.. Truck has 230k miles on it, and last fall the headgaskets blew.. Changed em, put in ARP's. Had the heads checked by the local machine shop. Put in 3" downpipe and deleted the EGR equipment while I was in there. Fast forward to 2 weeks ago, pulling my goosneck through the mountains in West Virginia. Truck kept overheating on hills, I was down to 40 mph to keep the engine under 240. Fan clutch was kicking in, water pump replaced last summer. Thermostats a few years ago. Next morning I made it 5 miles from the hotel when water temp skyrocketed and headgaskets (I'm assuming) let go and left me sitting on the highway in a puddle of water on the ground. For the record, my tow tune was a stock tune with EGR delete, my daily driver tune was a fuel mileage tune. Don't think I ever went wot with the fuel mileage tune ever..
I still have the 12v Cummins that was in my old 88 Chevy Dually conversion that I parted out. Looks like I'm going to be using Screamin' Seeman's motor mounts, destroked adapter plate, and work with them on a controller (since I already have the factory TCM and wire harness, I don't need the entire destroked setup). This motor was twinned, and made 502hp @ 1900 rpm; 1250 ft-lbs @ 1850 rpm (Rear wheel measurements on a superflow). It was a dream to tow with.
Friend of mine that does transmissions is going to go through the Allison for me and build it. Goerend converter and Alto G3 clutches.
Any other build advice from anyone? Anyone looked at figuring out how to defuel a 12v for shifts to help the Allison stay together?
After a lot of messing around, the LBZ left me walking. To be honest, I've not been crazy impressed with the LBZ since I bought it, and the fact that it has now failed me twice is the last straw.. Truck has 230k miles on it, and last fall the headgaskets blew.. Changed em, put in ARP's. Had the heads checked by the local machine shop. Put in 3" downpipe and deleted the EGR equipment while I was in there. Fast forward to 2 weeks ago, pulling my goosneck through the mountains in West Virginia. Truck kept overheating on hills, I was down to 40 mph to keep the engine under 240. Fan clutch was kicking in, water pump replaced last summer. Thermostats a few years ago. Next morning I made it 5 miles from the hotel when water temp skyrocketed and headgaskets (I'm assuming) let go and left me sitting on the highway in a puddle of water on the ground. For the record, my tow tune was a stock tune with EGR delete, my daily driver tune was a fuel mileage tune. Don't think I ever went wot with the fuel mileage tune ever..
I still have the 12v Cummins that was in my old 88 Chevy Dually conversion that I parted out. Looks like I'm going to be using Screamin' Seeman's motor mounts, destroked adapter plate, and work with them on a controller (since I already have the factory TCM and wire harness, I don't need the entire destroked setup). This motor was twinned, and made 502hp @ 1900 rpm; 1250 ft-lbs @ 1850 rpm (Rear wheel measurements on a superflow). It was a dream to tow with.
Friend of mine that does transmissions is going to go through the Allison for me and build it. Goerend converter and Alto G3 clutches.
Any other build advice from anyone? Anyone looked at figuring out how to defuel a 12v for shifts to help the Allison stay together?
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