Does a CAB hurt HP?

[TN8Man]

When comparing same model tractors except one with a cab, will the cab hurt performance on HP or will it help with added weight?

 

[big bubba]

for sub compacts 30hp or below, maybe, but on yours (50hp?) think the added weight would only help, esp on ground engagement implements.
personally, i can't imagine a cab on sub compacts, but guess it does serve a purpose for those putzing around in the cold. regards

 

[RjCorazza]

AC use will rob maybe 5 HP depending on the source. No other power penalties that I'm aware of.
The weight could help or hinder... More weight = more traction, but on a slope that weight above COG is a liability.

 

[big bubba]

good point, esp on smaller machines

 

[TN8Man]

AC use will rob maybe 5 HP depending on the source. No other power penalties that I'm aware of.
The weight could help or hinder... More weight = more traction, but on a slope that weight above COG is a liability.

Thanks
The tractor I was looking at (Kioti CX2510 Cab) only had 24.5hp so 5hp loss would not be good.

 

[LouNY]

Just the AC, but it does have an off switch. I tend to switch mine off for about 40 feet in my driveway on the little Kioti2620 as it struggles on one little spot more then the rest. It makes a definite difference.

 

[workinonit]

When you need the AC or heat does it matter?

 

[TN8Man]

for sub compacts 30hp or below, maybe, but on yours (50hp?) think the added weight would only help, esp on ground engagement implements.
personally, i can't imagine a cab on sub compacts, but guess it does serve a purpose for those putzing around in the cold. regards

The Kioti CX2510 CAB is in the compact class but only 24.5hp.

 

[big bubba]

thanks for correction. but it's still like having a cab on a garden tractor. just my bias. at least the consumer these days has a wide range of options big & small, regards

 

[wolc123]

Probably not as much as the emissions controls they are putting on those over 25 hp these days.

 

[newbury]

The cab will probably greatly increase fuel usage. With working A/C and heat expect to have many more hours of usage.

 

[RjCorazza]

The cab will probably greatly increase fuel usage. With working A/C and heat expect to have many more hours of usage.

Haha! So true.

 

[tacticalturnip]

With the AC on you won't be doing anything fast, but you'll do it in comfort. The sub-25 horsepower tractors with cabs have their place, even with AC; Deere will be coming out with AC for the 1025R/2025R cab models and I believe the new Mahindra equivalents will offer it too.

If you're not working the machine for a profit, and therefore can work slower, they're a good option. All the better if you're doing loader work, as opposed to running the PTO.

 

[Jrasband]

Thanks
The tractor I was looking at (Kioti CX2510 Cab) only had 24.5hp so 5hp loss would not be good.

If you will be doing a lot of driving up hills with loads that little Kioti will be pitiful or very slow I have used a open station 2510 extensively and was disappointed with the lack of grunt on slopes.

 

[steve tym]

Cab might hurt at high speeds. Too much wind restriction. Probably ok up to 60 mph or so. Get the cab.

 

[tacticalturnip]

If you will be doing a lot of driving up hills with loads that little Kioti will be pitiful or very slow I have used a open station 2510 extensively and was disappointed with the lack of grunt on slopes.

That's really any 25 horsepower tractor; hills are typically low and slow.

 

[mikester]

A cab has zero effect on engine HP.

A cab adds weight and your machine will be heavier. A general rule of thumb is a heavier tractor is better for traction and as ballast for lifting with a loader. A heavier tractor is harder to climb hills with. On hard pack level ground the HP lost from the added weight will be nominal.

A heavier machine is harder to accelerate and decelerate. Since your tractor is a slow moving high gear ratio machine by design these factors are irrelevant to HP.

If your cab has an AC and the compressor is mechanically powered by a belt from your motor, then you will lose some engine HP while running the AC.

If your cab has an electric fan running then HP loss is nominal. Recirculating engine coolant to your cab heat exchanger for cab heat uses a nominal amount of flow and engine HP.

 

[TN8Man]

thanks for correction. but it's still like having a cab on a garden tractor. just my bias. at least the consumer these days has a wide range of options big & small, regards

I agree 100%

I'm giving up on subcompacts and compacts with less than 25hp, with or without a cab.

For me to be happy its got to be a 30hp and above and probably with a cab.

 

[big bubba]

or even a bit larger let us know what you find before pulling trigger

 

[TN8Man]

or even a bit larger let us know what you find before pulling trigger

Will do!