dieselxj, I haven't been on the forums in a while.

I decided to sell the 85 Mercedes 300D. The diesel Ranger gets no less than 37 mpg, and is more fun to drive. The 300D is obsolete, now.

I am running 3.07 gears with close to stock size tires. I am not near the truck, so I don't have the height.

I spent $250 on the turbo. I think I got lucky on eBay.


Does anyone know how much fuel pressure the injection pump wants? For some reason, my lift pump is not moving fuel. It is so tight working in there, and I am short on time, so I am going to install a Facet fuel pump. I was planning to get something that would deliver a 1-3 psi to the IP. The truck gradually had slow start problems and then, it would not start.

Otherwise, the truck is a good little pickup. I have oil leaks from the breather on the top of the valve cover, and other small oil leaks, but the the engine runs quite well.

 

Does anyone know how much fuel pressure the injection pump wants?

I ran a high pressure electric pump on mine for a while, it was significant power increase.

 

Out of all of the threads that I have read on the Kubota swap I have not seen people use an added fuel pump.

Maybe there is some kind of restriction in your fuel system?

 

I was just given a v2203 out of a reefer trailer
it is set at only 35 horse what is the biggest injectors these motors come with stock(bobcat 773 or what ever)
how do you increase the timing (what is the stock timing)
how do you turn the injection pump up
does the turbo version of the motor use a different exhaust manifold
what bell housing, clutch, trans, are you guys running
My goal is about 60hp good fuel economy in a light, little 2wd pickup

any info you guys can tell me and prevent even more hours of research is greatly appreciated
thanks
guys

 

1. I was just given a v2203 out of a reefer trailer
it is set at only 35 horse what is the biggest injectors these motors come with stock(bobcat 773 or what ever)
Answer: All the injectors are the same, you don't get more HP out of a Kubota with injectors.

2. how do you increase the timing (what is the stock timing)
Answer: You don't increase the timing but you do have to replace a spring inside injector housing to create more RPM's. There's also a fuel screw you turn up.

3. how do you turn the injection pump up
Answer: If the engine is a DI engine you don't need to turn the pump up, if it's a IDI engine it does. It's a pretty involved process, part of which includes take the injector pump completely down and taking it to a machine shop to have another hole precision drilled in it. I will tell you all about it you get to that point.

4. does the turbo version of the motor use a different exhaust manifold
There a lot of manifold variations out there, depends what the engine came out of.

5. what bell housing, clutch, trans, are you guys running
Everyone is pretty much running the trans that came in their truck. There are no kits, off the shelf type conversions kits, to adapt the Kubota to any transmission. Some of the guys on the board are playing with the idea.

6. My goal is about 60hp good fuel economy in a light, little 2wd pickup
60HP is completely attainable, V2203 are rated from the factory, 47HP at 2800. When you turbocharge them the power goes way up. I haven't heard of a dyno test yet, but I'm guessing we are in the 80-100HP range.

Hope this helps, good luck.

any info you guys can tell me and prevent even more hours of research is greatly appreciated
thanks
guys[/QUOTE]

 

[/QUOTE]

---AutoMerged DoublePost---

Thank you
I'm used to cummins engines I would of thought for sure that bigger injectors and timing would add power
I'll keep you guys up to date on how my progress evolves

 

OOCummins I will tell you right now you should read every thread you can find on the subject and there are not that many. You can find them on this forum and at the 4BT Cummins forum.

And try and not do what Hyper people like me do. And that is worry about everything at one time. Break things down into sub assemblies and start from there.

 

I will keep you guys informed hoping to wrap up 2 other little projects this week then start into the motor.
Where is the injector housing is it on the pump or on top of each injector
where is the fuel screw on the pump
so all the power comes from the turbo does a boost line need run to the injection pump to fuel harder as boost goes up
is there a fuel plate in there, different delivery valves, different springs in the pump

i cant believe all these things need, is more air more fuel and more rpm there is nothing else you do to these to get more power seems almost to simple, do you have to run head studs or anything to prevent it from lifting the head or any other preventable motor issues

 

Injector housing is on the side of the motor in front of the starter, fuel screw is just a rack travel limit screw, it's on the front cover and the reason why we get more fuel is they are only set at 75% or so in the reefer. Only rack travel adjust and a stiffer governor spring is needed.

 

post up pictures..