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  #21  
Old 02-25-2013, 09:11 PM
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loosewrenchcowboy loosewrenchcowboy is offline
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swap

Btw, this entire project was done with the intent of using as little custom parts as possible. This will be the family road trip vehicle until i finish my cummins m725 project, so it needs to be dependable, and repairable weather i'm 45 min or 29 hours from home(2012 was my 3rd roadtrip to Yellowstone in my 93 dodge-on 40" pitbull rockers, 8 inches of lift, locked on both ends, pulling a custom offroad trailer).
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  #22  
Old 04-10-2014, 08:05 PM
Panther Panther is offline
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Quote:
Originally Posted by loosewrenchcowboy
Btw, this entire project was done with the intent of using as little custom parts as possible. This will be the family road trip vehicle until i finish my cummins m725 project, so it needs to be dependable, and repairable weather i'm 45 min or 29 hours from home(2012 was my 3rd roadtrip to Yellowstone in my 93 dodge-on 40" pitbull rockers, 8 inches of lift, locked on both ends, pulling a custom offroad trailer).

So when do we see a build thread on the M725?
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  #23  
Old 04-13-2014, 10:25 AM
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Mr. Goatman Mr. Goatman is offline
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What is the intercooler from/ where did you get it? I am in the middle of a 4bd1 swap and am looking for an intercooler. How are you controlling the OD and converter lock on the tranny?
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  #24  
Old 08-25-2014, 09:36 PM
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loosewrenchcowboy loosewrenchcowboy is offline
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intercooler

Oh boy its been a while.
Panther, stay tuned. I gotta finish the waggy-its almost done.
Mr goatman, i do not remember where i got the intercooler, but i do have another one on the shelf for my 725 i may be willing to part with. If ur still looking.
I bought 2 when i started this project(planning on duplicating the swap on the 725, but with a 6bt).

Currently i am using a floor mounted headlight dimmer switch for overdrive, toggle for lockup. I have hobbes switches for automating it, but until recently i didnt have enough h.p. to use em much. 100hp,+3:31 gears,+33" tires=SLOW.

Recently i replaced the industrial injector pump with an automotive pump, rebuilt with 3,200 rpm gov spring, fuel pin, and bigger injector nozzles. Now she rolls a lil coal, and moves out pretty good. 4th of July, roadtrip, gross weight on Flying J truck scale: 9,240 lbs. It hit 1,200°f pulling a good hill with converter locked and gained 5mph by the top. Couldnt use overdrive, hit 1,200° on flat ground. If i could drive 85mph i think it would be fine, lol.
Over 300 miles, self limited speed of 65mph, tipping the scales @ over 9,000#s, converter locked, no o/d, averaged 17.8 mpg.

3:73 gears i think will solve it.
And i am swapping in an hx30 as soon as the rebuilder is done with it. Tomorrow i hope.
The h1c turbo i have in use currently has a HUGE exhaust housing, spools late, and only 12 psi.

Last edited by loosewrenchcowboy : 08-25-2014 at 09:46 PM.
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  #25  
Old 09-22-2014, 03:43 PM
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loosewrenchcowboy loosewrenchcowboy is offline
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hx30w update

So i removed the h1c turbo, and when i attempted to install the hx30w the wastegate hits the block. Currently i am working on a spacer/adapter to tilt the hx30 away from the block so the wastegate clears.
Bummer it wasnt a bolt on. Plus side of this i can re-do the hack job on the exhaust that an un-named shop did and choked it from 3" to 2 1/4" at the firewall/floor pan.
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  #26  
Old 12-11-2014, 11:26 PM
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lorenmjones lorenmjones is offline
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Great looking swap. I'm getting ready to do the same thing but using an NV4500/NP241 and I'm starting out with an automotive application 4BT with P-Pump, HX30 rated at 130hp. How do you like yours with the HX30? I'm sure it spools up earlier. Does it give you better boost overall?

I'd love to hear your impressions.
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  #27  
Old 06-19-2015, 07:29 AM
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loosewrenchcowboy loosewrenchcowboy is offline
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hx30w

So it's been a while. Again.
Last year I was driving the Waggy on family road trips/vacation. Currently it is my daily driver, and i am slowly working out the bugs, and making changes.

So November 2014 I swapped on a junkyard hx30w that I had rebuilt. But I had to swap out the exhaust manifold too. There was no easy way around that. The new turbos mount tilted, tipping it toward the engine, and hitting the block with the wastegate.

So a new/used ebay manifold (supposedly off a Grumman van), I cranked the wastegate a few turns, and that's it.

Wow, what a huge difference. The hx30w spools up pretty quick and is currently pushing 20 psi boost. Egt hasn't hit more than 1,000 degrees pulling a trailer, up hill in o/d.
BUT, it does lug the motor rpms, which raises the coolant temp. I am gonna have to swap out the 3:31 gears for 3:73 to continue running my current 33" tires.

Last edited by loosewrenchcowboy : 06-19-2015 at 10:51 AM.
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  #28  
Old 06-19-2015, 11:17 AM
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DieselSJ DieselSJ is offline
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Clean install. I'm going crazy trying to get time to finish mine and get it back on the road.

Where did you mount the batteries? Any pics of the mounts? I was thinking back under where my spare used to be (my fuel filters are there too). Not much room for two batteries in the engine compartment.
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  #29  
Old 06-19-2015, 02:27 PM
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loosewrenchcowboy loosewrenchcowboy is offline
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Yeah, not much room for batteries. I considered mounting them against the core support in the wheel wells. Also maybe tucking them inside, between the rear wheel wells and the tailgate, hidden behind the interior panels(gel cell batteries).

In the end I mounted them underneath, on the drivers side, just in front of the rear axle. It works well since I don't drive it in the snow, and I don't mud bog it (I have another truck for hard core use). I used 2 optima red tops. Cleaning the terminals is a real P.I.T.A. They are directly under the access panel in the floor for the factory fuel tank sending unit. I will try to add some pics
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  #30  
Old 06-26-2015, 12:16 PM
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Eugene 1 Eugene 1 is offline
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nice hoping to start mine this summer
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  #31  
Old 08-01-2015, 07:38 PM
boghog360 boghog360 is offline
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Have you had time to re-gear yet?
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  #32  
Old 02-24-2017, 01:38 PM
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loosewrenchcowboy loosewrenchcowboy is offline
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Well it's 2017, still no re-gear on the axles.
I just had a new aluminum radiator built, nice looking unit. Expensive tho. But it is an exact replica of the factory original with modified brackets I have been running for 3 years. The internal tranny cooler popped, so it was have it fixed, or upgrade. I upgraded.
Also building a new shroud to attach the electric fan to-should be more efficient than the cobbled taurus setup I was running before and take up less space between the rad and engine.
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