CK 35HST - more power?

[powerscol]

Has anyone tweaked their tractor to get a bit more power. (turbo, blower, better air flow, tweaked the pump) Just wondering what might be done. I am not looking to enter a tractor pull, just to overcome the bogging in high range when going over a few hills in transport mode.

Thanks

PS I also am running at over 6500 ft in elevation, so I am basically looking to just overcome this elevation difference to get that lost power back.

 

[MtnViewRanch]

Has anyone tweaked their tractor to get a bit more power. (turbo, blower, better air flow, tweaked the pump) Just wondering what might be done. I am not looking to enter a tractor pull, just to overcome the bogging in high range when going over a few hills in transport mode.

Thanks

PS I also am running at over 6500 ft in elevation, so I am basically looking to just overcome this elevation difference to get that lost power back.

That is the HUGE problem with non turbo engines, altitude kills them.

Good luck.

 

[powerscol]

My neighbor that plays with dirt track cars says he can set me up with an NOS system. I think that might be overkill. He also thought a small blower (just moves air) from one of the import cars (belt driven hang on unit like an alternator) might work, if a way to mount could be figured out...also around here finding one would be tough.

 

[MtnViewRanch]

If you are going to fool with it at all, put a turbo on it. Like you said, you just want to get back to what you are suppose to have, which is plenty for that tractor. My Mahindra 3215 HST has a turbo and runs and operates great at 4100 feet. I know that is not 6500, but zero power loss. I think a lot of people neglect to pay attention to what altitude does to a naturally aspirated engine before they make a purchase.

My brother had been thinking about getting a Kioti CK35. He would have been operating it at elevations between 9000 and 12,000 feet there in Colorado, I talked him out of it, told him he really shouldn't get anything that didn't have a turbo on it.

Good luck with your endeavors. :thumbsup:

 

[powerscol]

I guess I could go that way, but usually you need to reduce engine compression, and mess with timing, but I could adjust the waste gate to limit boost to say 5 or 10 lbs or so.

Now I have more time to search out some small turbo tractors to see if I can find a match. Does anyone know of any turbo tractors made by Daedong? At least that might get me in the ball park.

Or get a second BIGGER tractor ?????? Wonder what the Boss Unit would say. :confused2:

 

[MtnViewRanch]

I guess I could go that way, but usually you need to reduce engine compression, and mess with timing, but I could adjust the waste gate to limit boost to say 5 or 10 lbs or so.

Now I have more time to search out some small turbo tractors to see if I can find a match. Does anyone know of any turbo tractors made by Daedong? At least that might get me in the ball park.

Or get a second BIGGER tractor ?????? Wonder what the Boss Unit would say. :confused2:

Banks Turbos use to do this all the time with 6.9 and 7.3 Navistar diesels. Kept the same everything, installed the turbo set for 8-9lbs boost and turned up the pump. My guess would be all you need is the turbo, you only want OEM power, not more. Of course the other alternative is to drop down to mid range, costs nothing other than time. You're retired, right???

 

[TJP89]

I guess I could go that way, but usually you need to reduce engine compression, and mess with timing, but I could adjust the waste gate to limit boost to say 5 or 10 lbs or so.

Now I have more time to search out some small turbo tractors to see if I can find a match. Does anyone know of any turbo tractors made by Daedong? At least that might get me in the ball park.

Or get a second BIGGER tractor ?????? Wonder what the Boss Unit would say. :confused2:

Kioti makes some turbo tractors, but I think they're all at least 55HP. The DK55 up I believe is turbo, and I think the RX and some of the NXs are turbo as well.

I will say that HI is not meant to really have any load put on it, so bogging down going uphill is normal. I can understand that at high altitude this power loss could be too big though.

I'm not a mechanic, but my understanding of altitude is that you lose pressure, which is essential for a Diesel to fire properly. Couldn't you just increase the system pressure a little to compensate for the altitude? Correct me if I'm way off track here.

Of course a bigger turbo charged tractor, say a RX6610PSC, should solve your problems too

 

[joefromga]

If you add air with a turbo you will need to add fuel or you will run lean. 10lbs of boost is a LOT but 2-3 may actually add 10hp or so and give you a snappy feeling.

There are some turbos on the CanAm side by side and there was a 4 wheeler DIESEL made by Arctic Cat that was turbo if I'm not mistaken.

The problem with diesel is that you have to add more fuel and that means you'd have to somehow make the injectors pulse longer or add larger ones so that there would be more fuel there.

With a gas motor it's very easy. Inject with an additional injector into a throttle body that's switched on by a button or at WOT or whatever. With diesel I'm not really sure.

But I know that running lean means running hot and heat melts pistons.

 

[comancheflight]

As a Flight Instructor, aircraft must compensate for altitude each flight. As you go up the air becomes less dense. There is the same amount of air but the molecules are more separated so you need to decrease the amount of fuel, or lean it out, for proper fuel burn. This increases temperature as said and in aircraft you monitor EGT (exhaust Gas temp.) or CHT (cylinder head temp) to keep in proper operating temperatures. Normally aspirated engines in aircraft routinely use turbos to increase the air density to sea level to maintain full power up the the aircraft service ceiling. It is all based on air density.

 

[Fallon]

As a Flight Instructor, aircraft must compensate for altitude each flight. As you go up the air becomes less dense. There is the same amount of air but the molecules are more separated so you need to decrease the amount of fuel, or lean it out, for proper fuel burn. This increases temperature as said and in aircraft you monitor EGT (exhaust Gas temp.) or CHT (cylinder head temp) to keep in proper operating temperatures. Normally aspirated engines in aircraft routinely use turbos to increase the air density to sea level to maintain full power up the the aircraft service ceiling. It is all based on air density.

If its using a supercharger or turbocharger by definition its no longer a normally aspirated engine.

 

[comancheflight]

That is correct and was not how it was written...reread

 

[sd455dan]

Has anyone tweaked their tractor to get a bit more power. (turbo, blower, better air flow, tweaked the pump) Just wondering what might be done. I am not looking to enter a tractor pull, just to overcome the bogging in high range when going over a few hills in transport mode.

Thanks

PS I also am running at over 6500 ft in elevation, so I am basically looking to just overcome this elevation difference to get that lost power back.

There have been a few threads on TBN where people added a turbo to their diesel tractor. the threads I read were successful in the turbo addition

and the owners seemed happy with the results...


Some differences in gas and diesel engines i am aware of

Since diesel engines are compression engines
air /fuel ratios can be much wider than gas engines-
there is no throttle blade to limit air intake on most pre 2012 diesels other than ( Cummins 6.7s maybe others) unlike gasoline powered engines
and they do not suffer from detonation like all gas engines- excluding the new direct injected ones which do not suffer from pre-ignition or detonation ..

Direct injected diesels (supposedly) lend themselves to turbo charging compared to Indirect injected diesels due to having lower initial compression to begin with.

Maybe one of the guys who has successfully added a turbo to their diesel tractor will chime in.

Don't think that a Kioti has been user turboed yet

 

[powerscol]

Was looking into this for my Bobcat CT 235 - twin to yours. So far no turbo dealer will help, and now I am looking into small belt driven blowers, Probably wont do anything, but fun for an old engineer to think about it.

BTW have you had your dealer tweak the bypass pressure on the hyd. Mine was upped 200 lb and made a big difference.

 

[dfkrug]

There is the same amount of air but the molecules are more separated
so you need to decrease the amount of fuel, or lean it out, for proper fuel burn. This increases temperature
as said and in aircraft you monitor EGT (exhaust Gas temp.) or CHT (cylinder head temp) to keep in proper
operating temperatures.

AND, the pilot can actually control the fuel/air mixture from the cockpit...something you don't see in cars,
trucks, or tractors.

Turbos are ideally suited to airplanes, for reasons you stated.

With respect to turbocharging diesel tractors, you should be able to increase fuel by increasing the fuel
injection pump pressure. You can optimize for a particular RPM, something you can't really do in a
car or truck. I have not done this on a diesel, but I did have to play around with injection pressure
on a custom turbo installation on a mechanically FI-ed car (K-Jetronic).