Buying Advice Turbo or not

   / Turbo or not #31  
In general I prefer a three cylinder anything to a 4 cylinder anything because it is much easier to balance the rotating & reciprocating parts in a 3 cylinder. The result is a smoother running engine. Sometimes a little bit smoother (less vibration) and sometimes the difference is very large. It does tend to be very large in favor ot the 3 cylinder when comparing with a two or a four cylinder configuration. When you tested these, did the Kioti 3 seem smoother than the TYM 4?

As far as turbo or not, a turbo adds both combustion efficiency and total HP when comparing same size engines. It also adds complexity and expense - but not too much. Turbos are well worked out and last a very long time.
The way for a manufacturer to get around a turbo is to make the engine a little bit larger - that takes care of the disparity in HP....just open the throttle a little more.
But the efficiency difference is harder to get around without a turbo. Basically the less efficient engine makes more pollutants and requires the manufacturer to upgrade the tractor's pollution control. That's easy to do, but tends to add back the money they saved by not going with a turbo.

In the end, unless you are using the tractor all the time at full throttle I doubt you will notice a difference turbo or not as long as the non-turbo engine is a little larger. Balance is something you will notice - but only you can decide if the tractor's vibration is important to you.
For me - and I haven't tried either tractor - I would lean toward the Kioti just because it is a three and the balance thing....and toward the Yanmar engine in the TYM because in general Yanmar diesels are really, really good.
good luck,
rScotty
I guess you never saw the BSA motorcycle ads for their 4 cylinder engine they use. a glass full of water sitting on the seat don't lose a single drop with the engine running!.. the whole glass would fall off a 3 cylinder version.. and I still say curved torque is less desirable!. I'll agree that turbocharged engines are more efficient, though..
 
   / Turbo or not #32  
I guess you never saw the BSA motorcycle ads for their 4 cylinder engine they use. a glass full of water sitting on the seat don't lose a single drop with the engine running!.. the whole glass would fall off a 3 cylinder version.. and I still say curved torque is less desirable!. I'll agree that turbocharged engines are more efficient, though..

Take that curved torque dislike to the Nebraska tractor testing site. They might can explain it better.
 
   / Turbo or not #33  
Turbos are quieter if noise level mater to you.


This.

I was about to say that the biggest difference I've been able to tell between N/A and turbo tractors rated at the same power is the noise level is much lower with turbocharged tractor. My new 5075E is almost too quiet. This would be a good question for someone who has experience with tractor models that came both N/A and boosted. For example if I'm not mistaken early Ford 3930's were N/A, and in their later years they went with a smaller displacement/boosted motor in that same model with equal HP ratings. Can some who's owned both versions tell much of a difference between the two?

Generally speaking I prefer larger displacement to boost to make X power.
 
   / Turbo or not #35  
In general I prefer a three cylinder anything to a 4 cylinder anything because it is much easier to balance the rotating & reciprocating parts in a 3 cylinder. The result is a smoother running engine. Sometimes a little bit smoother (less vibration) and sometimes the difference is very large. It does tend to be very large in favor ot the 3 cylinder when comparing with a two or a four cylinder configuration. When you tested these, did the Kioti 3 seem smoother than the TYM 4?

As far as turbo or not, a turbo adds both combustion efficiency and total HP when comparing same size engines. It also adds complexity and expense - but not too much. Turbos are well worked out and last a very long time.
The way for a manufacturer to get around a turbo is to make the engine a little bit larger - that takes care of the disparity in HP....just open the throttle a little more.
But the efficiency difference is harder to get around without a turbo. Basically the less efficient engine makes more pollutants and requires the manufacturer to upgrade the tractor's pollution control. That's easy to do, but tends to add back the money they saved by not going with a turbo.

In the end, unless you are using the tractor all the time at full throttle I doubt you will notice a difference turbo or not as long as the non-turbo engine is a little larger. Balance is something you will notice - but only you can decide if the tractor's vibration is important to you.
For me - and I haven't tried either tractor - I would lean toward the Kioti just because it is a three and the balance thing....and toward the Yanmar engine in the TYM because in general Yanmar diesels are really, really good.
good luck,
rScotty
3cyl 4 strokes need counterbalance shafts to keep them in one piece. 3 cylinder 2 strokes are great though. They balance like an I6, so the reason the 3 tra tor is smoother than the 4 cylinder is because of the added weight flinging around inside. The 4 is the simpler emgine.
 
   / Turbo or not #36  
3cyl 4 strokes need counterbalance shafts to keep them in one piece. 3 cylinder 2 strokes are great though. They balance like an I6, so the reason the 3 tra tor is smoother than the 4 cylinder is because of the added weight flinging around inside. The 4 is the simpler emgine.
Not really true, there a lot of different types on "balance" to contend with in different engine comfigurations but as for mechanical balancing the 3 cylinder inline engine has a natural balance compared to an inline 4 cylinder.

Balance shaft are common in 4cylinder engines, not common in 3 cylinder.

I think you are confusing the power pulse balance with mechanical, neither the 4cylinder or 3 cylinder are balanced in that regard either.

As for the turbo, I prefer them in most applications, complexity is minimal and there are a few simple steps to prevent any longevity issues.

I've built and refreshed a lot of turbo engines for race applications, mostly inline 4 and 6cylinder making 1000 hp out of 1.9L and 2000hp out of 3.2L reliably, I can tell you a turbo is relatively easy on an engine if everything is matched correctly.
 
   / Turbo or not #37  
3cyl 4 strokes need counterbalance shafts to keep them in one piece. 3 cylinder 2 strokes are great though. They balance like an I6, so the reason the 3 tra tor is smoother than the 4 cylinder is because of the added weight flinging around inside. The 4 is the simpler emgine.

I’ve never seen a 3 cylinder engine with any type of dynamic balancer. Very few 4 cylinder diesels are built without them.
 
   / Turbo or not #38  
I guess you never saw the BSA motorcycle ads for their 4 cylinder engine they use. a glass full of water sitting on the seat don't lose a single drop with the engine running!.. the whole glass would fall off a 3 cylinder version.. and I still say curved torque is less desirable!. I'll agree that turbocharged engines are more efficient, though..

I never saw that ad. I’ve seen a lot of BSA’s but never a 4 cylinder. Got any pictures of a BSA 4 cylinder engine? They may have had an ad comparing their 3 cylinder to a twin. I don’t think they ever made a 4 cylinder engine.
 
   / Turbo or not #39  
I never saw that ad. I’ve seen a lot of BSA’s but never a 4 cylinder. Got any pictures of a BSA 4 cylinder engine? They may have had an ad comparing their 3 cylinder to a twin. I don’t think they ever made a 4 cylinder engine.
I might have been mistaken on the 4 cylinders, it may have been their 2 cylinder horizontally opposed engine that was that vibration free..
 
   / Turbo or not #40  
gold wings had 4 cylinders for decades, then they wanted to charge more, so they went to a flat 6.

The new MotoGP motorcycles for years now have been timing their multicylinder engines into a "big bang" format, where the 4 cylinders fire within a small 1/4 or 90 degree revolution of the crank. Almost like a big single cylinder.
 

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