Looking for a Kubota V1505-T engine

[War Eagle 2]

I'm looking for a V1505 turbo charged engine in good running condition and less than 2500 hours. Engine needs to be complete and in current running condition.

Not interested in newer vintage engine that is Tier 4 compatible.

HP rating in the range of 36 to 42hp.

Let me know if you have one to sell or know where I might locate one.

 

[War Eagle 2]

Found a very low hour (only 138hrs) V1505T engine rated at 44.2HP.

It drove a gear reduced generator and the generator went bad so I got the engine for 1/3 of what I see listings are at for 2500-3000 hour engines.

Starts instantly and just purrs.

Patience pays dividends.

 

[Grandad4]

Good deal for you! If that turbo V1505 is going in your B3000, it's going to be a screamer!

 

[War Eagle 2]

Ya, I'm thinking seriously about that idea but am a little worried about it potentially breaking something. I don't abuse my tractor in any way and never run it over the 540 PTO rate. The 44.2 horsepower is rated at 3000 rpm and at PTO speed is closer to 40hp. So will 40 hp damage (break) pumps, gears or shafts? Don't know and haven't found anyone that knows whether Kubota builds their tractors with lots of margin in them.

Originally I was looking to just mine some parts off the engine to be used on my current V1505 engine. Things like intake manifold, exhaust manifold, injection pump, turbo, etc to install on my non turbo engine. This would probably have only netted me 3-5 additional hp and I really expected the tractor to handle that without any problem. The turboed engine has different pistons, injectors, head and camshaft etc., that add to the 44.2 hp rating. So if I just drop the whole engine in to the tractor and limited the rpm to the 540 pto speed then the tractor would see 40 hp.

That's a 30% increase in hp that the tractor would potentially have to be capable of handling with out breaking anything.

Can this be done? Just don't know the answer to that question.

 

[Grandad4]

Kubota builds strong drivetrains but the overall tractors tend to be light until you get into the larger platforms. With a B3000, the original 30 hp gives more power than the tractor can put to the ground, so I'm not sure what you would gain by adding another 33% hp. Beyond the "coolness factor", with most any work you'd be doing, you'd just be burning more fuel along the way.

 

[War Eagle 2]

To take advantage of any "coolness factor" I would probably need to add "flames" to the body work some where.

Ya, I'm not going to be enter into any tractor pulling contests and the added hp isn't going to make this tractor go any faster. However, I think the usable gain would be associated with increase PTO HP. Current rating is ~ 23hp. If I was to drop the whole engine in the tractor then PTO hp might go close to 30 hp and that would be very noticeable. That's the part where I worry about margin in the Kubota tractor. I could drive a bigger tiller, bush hog mower and finish mower or snow blower. But at the same time would I greatly increase my propensity to break something on the tractor?

Decisions, decisions.

 

[TMGT]

Are you sure about the internal differences with the turbo engine? I'm in the process of putting a turbo on the D1105 in I'm my B2620. From my research the only real difference between the turbo and non turbo on my engine is the timing of the injector pump and the injector nozzles, besides the different injector lines to clear the turbos version intake.

Like you I'm looking for a little more pto hp and better efficiency.
I expect about a 5-8hp increase at the pto.

 

[ericm979]

TMGT that sounds like an interesting project that needs a writeup. The turbo version has different injectors but the same pump? Do you also adjust the pump so it provides more output?

 

[War Eagle 2]

Are you sure about the internal differences with the turbo engine? I'm in the process of putting a turbo on the D1105 in I'm my B2620. From my research the only real difference between the turbo and non turbo on my engine is the timing of the injector pump and the injector nozzles, besides the different injector lines to clear the turbos version intake.

Like you I'm looking for a little more pto hp and better efficiency.
I expect about a 5-8hp increase at the pto.

Part of the challenge is getting the correct information about the Kubota engines. (There are so many models etc.) So looking at what info I have found so far I know my newly acquired V1505-T engine is an earlier non EPA controlled emission engine (2006 vintage) and looking at what specs I could find there is a valve timing difference between non turbo vs turbo so that is camshaft change. There is an injection timing difference between the non turbo vs turbo so that is likely fuel camshaft. It appears the fuel pressure is the same so the nozzles are likely to be different so there is more fuel available for creating more hp. The compression ratio is close to the same for both engines but we know that adding a turbo increase the intake pressure by some amount of PSI so in order to keep the compression ratio the same (and not damage the engine, manufacturers either change the piston shape and/or the head shape (combustion chamber) so as to keep the compression ratio the same. The ring gaps on the pistons are different and there are a few other things that appear to be different.

I can't tell you how each of those changes (or any others) affect the HP output on the engine. They have to have some just because the output of the engines are different.

Have you started your modifications yet? I am interested in what approach you are taking and what are you doing to acquire the needed parts.

 

[jkornbread]

With a turbo engine you will have whats called a dynamic compression ratio. The advertised compression ratio is called static compression ratio. So, you can figure things out with simple math.
So -
If your Static compression ratio is lets say 20:1 and you need to see what it is turbo charged, then take your boost output, divide by 2, then add to static.
If you make 6psi of boost, divide by 2 = 3
20+3=23
Boosted you are 23:1 under load.
This can help you look at both engines spec wise and see where your compression ratios will be different.
A turbo charged engine will have a different piston, and probably additional oil jets to spray extra oil on the pistons to keep them cool as the pistons will see more heat than a NA diesel engine would. Cams will be different now that you are dealing with forced induction and not vacuum induction. There may be cooling improvements and or oil cooling differences between the 2 engines due to the turbo engines increased heat load.