4cyl vs 6cyl
- Thread starter Fragonard
- Start date
icanshootwell
Member
- Location
- Ross-on-wye
The main difference is price, the difference between a 516 and a 716 used to be 8 k, similar in hp.
- Location
- Easter ross
I can only speak for the case 145, absolute pocket rocket punches well above what it should for a 4cyl. Mix of ground from blowing sand to blue clay on a mixed farm so expected to feed out bales/pull a feeder wagon, 4000L trailed chafer sprayer, 2400kg fert spreader, pulls a 6m toptilth which everyone thought we were crazy to try. Only niggles from new and coming up 2 yrs is the electric spools, there’s a fault in the software somewhere and still no fix 
- Location
- Co antrim
Does any1 have both? Any difference in fuel consumption? Presumably 4pot would be easier on light duties and 6pot easier on hard graft but mabe am wrong?
Fragonard
Member
4 would have to be easier when not working hard
clbarclay
Member
- Location
- Worcestershire
Judging by profi tests, the variation in efficiency and characteristics between any two 4 pot or 6 pot engines, of about the same power, can be rather more than between a typical 4 and 6 pot.
clbarclay
Member
- Location
- Worcestershire
The big 4 pots tend to be about the same weight and wheelbase as the previous 6 pot models as well.
clbarclay
Member
- Location
- Worcestershire
Tbh there isn't that much between then on paper, certainly compared to some other tractors the same size on headline fuel consumption. Shame they don't appear to record ad blue consumption with the powermix results.
dowcow
Member
- Location
- Lancashire
I believe the 4 pots have a spacer behind the engine to make them the same wheelbase as the 6 pots. The argument is that to be able to use that sort of power you need a certain size and weight to the tractor frame to begin with before you even add ballast. Even for roadwork there's a certain balance to a 'full size' tractor.
livestock 1
Member
6 cylinder engines tend to hang on better more noticeable on road work
4 cylinder will be all top end
4 cylinder will be all top end
Elpresidente
Member
- Location
- West Wales
A friend of mine has an old style Case Maxxum 115 6 pot pre common rail and a new style 4 pot 115. The 4 pot 115 absolutely annihilates the old 6 pot on pulling power. I’ve driven quite a bit of both tractors and the 4 pot 115 is a very capable tractor which punches well above its weight. Pulls a 2300 gallon tanker a medium size Shellbourne Reynolds muck spreader and Mchale round baler and a Fusion when required. The likelihood is that the dealer has uploaded the engine management software of a model further up the range. Before anyone says anything no I can’t prove it but it’s got some serious oomph in it for what it says on the bonnet.
Wellytrack
Member
This has been done before.
I would ignore the number of cylinders and consider how 30 years ago 30hp per litre was typical performance from an agricultural engine.
Combine that with their poorer non constant power type torque curves compared to today’s tractors with 40hp - 50 hp per litre it’s easy to see how technology has improved.
Once was a time you could only expect to find a 110hp tractor in 6 cylinder format, you now wouldn’t dream of expecting it in anything but a four cylinder - or even in some cases now a three.
I would ignore the number of cylinders and consider how 30 years ago 30hp per litre was typical performance from an agricultural engine.
Combine that with their poorer non constant power type torque curves compared to today’s tractors with 40hp - 50 hp per litre it’s easy to see how technology has improved.
Once was a time you could only expect to find a 110hp tractor in 6 cylinder format, you now wouldn’t dream of expecting it in anything but a four cylinder - or even in some cases now a three.
- Location
- Durham, UK
Yep mines like that, pocket rocket.
- Location
- Lorette Manitoba
There is no replacement for displacement. A big pot four will give you serious power with a turbo and aftercooler but a straight six naturally aspirated can only do so much. Big advances in engine management in the past 30 years have pushed new boundaries to what a four pot can do.still like my six pot cat motor for pulling like a train 
FarmerFrank88
Member
The replacement for displacement is a turbo and higher compressionThere is no replacement for displacement. A big pot four will give you serious power with a turbo and aftercooler but a straight six naturally aspirated can only do so much. Big advances in engine management in the past 30 years have pushed new boundaries to what a four pot can do.still like my six pot cat motor for pulling like a train
Dman2
Member
- Location
- Durham, UK
We have a 4 and a 6 cylinder similar HP but different brands
Both have there place here
4 cyl a bit light for some jobs
6 cyl a bit to heavy for some jobs
But both can do each others work if needed
4cyl better on fuel, just has a small tank so gives the impression of using a lot
Both have there place here
4 cyl a bit light for some jobs
6 cyl a bit to heavy for some jobs
But both can do each others work if needed
4cyl better on fuel, just has a small tank so gives the impression of using a lot
I have a new style Maxxum 115,it should be better than an old 6 pot 115 cos it boosts to 140hp from new. But i agree,awesome power for what it is.
Finn farmer
Member
Can't fault our 145hp (169 on boost) Maxxum. Great for every job we do.
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