View Full Version : 6.9 diesel with a np435-205 combo in a B2
86ford
10-29-2007, 09:50 PM
guys the label says it all. i have acess to the parts listed above and am wondering if it is even possible? i can get the motor,trans, and t-case for around 600 bucks and am having issues with the b2 anyway. i need help, pointers, and general input of anykind on this possible bastardization i am tempting myself with creating.
86
You aren't have as many issues now as you will be when you attempt that.
First figure out how to cool it. The radiator for that engine in an F250 or something is probably 30+ inches wide, 24" tall and a 4-core. If you can fit that in there, then you have a start.
Then you have to look at the steering box. That is a wide motor. You might have to move the steering box to the outside of the frame rail. The brakes might need to be changed as well--likely a Hydro-boose system used both because of the lack of room for a vacuum booster and the need for a vacuum pump on the diesel. With that radiator, I doubt an engine fan could be used so you need to take into account the need for a couple big electric fans in there somewhere. And hopefully you don't have to cut the firewall too much.
That's a medium-duty truck engine. Probably 1,100# worth. You can find springs to hold it up though. It's only 700# heavier than the 2.9. So it's like driving with 4 people sitting on the hood.
And all that for a 160hp 315ft# engine? You'll need a turbo to make that worthwhile. So you might need to account for some more space in there somewhere for that.
85_Ranger4x4
10-30-2007, 11:06 AM
It may be somewhat easier to just put the BII body on the shortened F-250/350 frame, your stock frame probably won't care too much for the either the weight or power of that diesel your stock axles won't fare very well either. You may also have problems registering it, I have heard rumblings if you have inspections they don't like gas to diesel conversions.
rickcdewitt
10-30-2007, 01:00 PM
i agree with 85. set the body on the full width truck.it would be bad ass just don't expect a daily driver.does anyone know if the 6.9 swaps direct with a 7.3 turbo motor?
86ford
11-01-2007, 03:00 AM
i am still unshure of what direction to go and think i need a push in some direction since i am going to be aquiring yet another vehicle soon and could suck it up and drive fwd all winter and build a monster..... give me something here!
rangermx25
11-01-2007, 03:52 PM
Man i dont no too much about trucks but the 6.9 diesel would be bad ass. that wood be so cool u cood just put it on a full width truck chassis like others said.
Ranger5.0
11-01-2007, 05:12 PM
6.9 and bad ass? im not to sure about that. Its a lotta weight considering the amount of power it generates..
racsan
11-11-2007, 07:26 AM
a 6.9 just weighs too much for what it can do, it would be cool to have that sound coming from that chassis though. if it were me id put the bronco body on a shortened 3/4 ton truck chassis. i beleive the 6.9/7.3 are the same as far as bolting up, the 7.3 has bigger cyl bores and a turbo while the 6.9 is a non-turbo (stock anyways)
Jason
11-11-2007, 08:23 AM
Anything is possible. I worked with an older guy that stuffed a 2-stroke Detroit diesel into a 79 GMC. He drove it every day and it was the most obnoxiously loud truck on earth.
rickcdewitt
11-11-2007, 09:17 AM
check out the ultimate adventure jeep build,they are putting a jeep body on a shortened 1 ton deisel truck frame with a cummins! can you say chop,chop
fordwheelinman
11-11-2007, 09:21 AM
Not ALL 7.3's are turbo. They werent turbo motors untill they were called the "Power Stroke". I dont believe you need a vacuum pump with a 6.9 as it is only a normally aspirated engine and does not have any boost negating the natural vacuum of the engine.
There was an option of a turbo on the IDI 7.3.
You need a vacuum pump on any diesel. There is no thottle plate so the manifold is pretty much always at atmospheric pressure.
Edit: another thing is, a gasoline motor with a turbo doesn't have a vacuum pump either. It has a throttle plate so any time you aren't making torque, you have negative pressure in the manifold. A vacuum resevoir may be required though as it is on engine with high performance camshafts that idle with a low vacuum.
fordwheelinman
11-11-2007, 11:33 AM
That is why i say "i dont believe". I know little. I stand corrected.
86ford
11-14-2007, 06:28 PM
well i pulled the trans on the 2.9 monday and hope to get it backtogether soon while i figure out what motor/trans/tcase combo i want to put in it.
Maverick
11-14-2007, 11:17 PM
The whole idea is a bad one, so many things to consider. The frame really isnt strong enough to deal with that engine. Fitting it in there is gonna be a bitch and require major modifications to just about everything that surrounds it (steering, firewall, exhaust, heater, cooling). Your stock suspension and drivetrain will need replaced with at least half ton parts. If you ever get around all that, you still have a 94" wheelbase which with that much weight over the front end would probably make it the most ill-handling thing on earth. All that work just to get blown away by one with a 5.0 V8.
predator
11-15-2007, 10:19 AM
not worth it man....if you are gonna do a diesel swap then go with a 4bt, so much easier and pretty equivalent power.
86ford
11-15-2007, 10:33 AM
i wasent able to get my buddy to sell the combo to me for cheap anyway so the 6.9 is out of the qestion for now. i am going to bring the stock motor and trans back to life for some winter fun. i hope to make enough cash to start assembling a better swap for the b2 over the winter. i like the 302 and it seems like it can be done for a reasonable price. i hope to get down to the yard in the next few weeks with my friend who knows the owner and see what kind of prices he can swing.
86
sick toys
11-23-2007, 12:11 PM
so if it's just the drivetain,save your time and money and just dont buy it!!!!Go a different direction with your BII instead.
86ford
11-25-2007, 02:32 AM
got the b2 back in running condition today and yesterday with around 15hrs in the garage but its back to running with manual hubs and significant hole in the hood with a filter comming through it i am going to "call" a snorkel.
86
rickcdewitt
11-25-2007, 10:14 AM
good idea on the "snorkle".you might make a splash shield for the front side of the filter so it doesn't get hammered by mud,etc.something like that would have saved me the 1000$ it'll cost to rebuild my 2.9 after hydrolocking.
86ford
11-25-2007, 03:30 PM
beat ya to it.i cut a 6-8 inch square out of the corner of the hood right next to the antenna. i used some FREE stainless intake parts from a friend attatched it to the end of the factory tube and stuck the K&N knock off right out the corner and put a coffee can over it and screwed it on with maybe the back 1/4 of the coffee can cut out facing the winsheild. i have already gotten scary close to hydrolocking some of my old rigs. dont want to do it to this one. the best part is it was FREE for the hubs and the intake crap!
86
rickcdewitt
11-26-2007, 10:12 AM
well,at least hindsight is 20/20:dunno:.if i locked up my truck twice i'd really be an idiot:idiot:
ish474
04-06-2008, 11:28 PM
Bottom line if you have a welder, a grinder and some skill you can put any tab A into any slot B. Of course it makes no sense but rarely do extreme mods make any sense. putting a V8 into a ranger makes no sense. Do it if you can and as long as you understand what your getting into. I say do it and I'll gawk at it just as long as I don't have to do any of the work.
rusty ol ranger
10-25-2008, 11:37 PM
A 6.9 only makes 315FTLBS? Find that hard to believe ford would use a Diesel that only made 15 more FTLBS then a 351W.
I would use a 351W in that ranger.
later,
Dustin
doorgunner
11-23-2008, 09:02 PM
I've considered doing a diesel conversion on my avatar truck--good thing I saw this discussion--I think I would rather cut-to fit the diesel chassis so that I could bolt the Ranger/'36 body onto the diesel chassis--anything is going to be a pain, but like the guys said, the original diesel chassis will take the torque muuuuuch better.....I'd just take wheel span/wheel base measurements off the Ranger and "adjust" the diesel chassis to the Ranger dimensions...
I "thought" it over-- the pain would be worth it to have a small truck rattling everybody else's dashes at traffic lights, + it oughta get 28-30 mpg when scaled down to light truck dimensions--I know two guys with full size diesel trucks & they both say "the truck gets 24 mpg unloaded OR 24 mpg pulling a loaded 30' gooseneck trailer"....
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