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Horse power?

(quoted from post at 06:55:53 05/05/09) Can anyone tell me the horse power rating of a farmall 350?

thanks.

Butch
Click to expand...
Drawbar is 30.07
PTO is 36.36

http://www.external_link/td/004/td4661.html
 
i always thought it would be helpfull if they had a horse power rating listed on this website in the research and info catagory
 
Hi Butch, We've had almost 8 inches of rain since the first of April and still raining. I have to mow the lawn in between showers.

According to external_link the 350 has the following hp's. Hal

Diesel engine
38.65-belt
34.28-pto
27.76-drawbar

Gas engine
39.31-belt
36.21-pto
28.76-drawbar
 
Another reason to stay away from external_link. Guy Fay's data book doesn't give the hp for the 350 gas, but says the 300 has 33 drawbar. Also says the NE tractor test shows the 350 diesel with 36.76 drawbar. There is simply too much "data" in external_link for it to be accurate. Too many problems with them checking or not checking the numbers. But, ANY publication with a lot of numbers in it has errors. That includes Guy Fay's, but his data is the most reliable by far.
 
I think what you run into with Tractor Data is they list IH's advertized in one place and Nebraska tests in another... In most cases that I have checked, IH tractors did considerably better in the tests than IH advertized. I believe the numbers I posted earlier were advertized HP.
I operated a 350D a lot one summer and as I recall, it seemed to have more power than I thought it was supposed to have. I had always heard IH diesels didn't have any guts at that time, but this one was not lacking for power for it's size.
 
Advertised drawbar hp for the C164 in the Super H is 31, C169 in the 300, 33, the advertised HP for the C175 in the 350 is likely about 35 or slightly more, someone who has it in print can correct me. NE tractor tests will be different.
 
Butch: I don't have the Nebraska tests with me however I do remember the Farmall 350 having the smallest gap between PTO and Drawbar horsepower of all tractors tested at Nebraska up to 1958. I also remember one or two of gas, diesel or LP gas made it over 40 hp on PTO. Drawbar on that same unit was 37-38, just about unheard of in 1958.

That probably hasn't changed much in the past 50 years, 350 could still be the leader, due to the fact that tractors since have power everything.
 
(quoted from post at 03:17:23 05/06/09) Butch: I don't have the Nebraska tests with me however I do remember the Farmall 350 having the smallest gap between PTO and Drawbar horsepower of all tractors tested at Nebraska up to 1958. I also remember one or two of gas, diesel or LP gas made it over 40 hp on PTO. Drawbar on that same unit was 37-38, just about unheard of in 1958.

That probably hasn't changed much in the past 50 years, 350 could still be the leader, due to the fact that tractors since have power everything.
Click to expand...
How's this? Some of the data does not make sense to me because why is there a difference in the percentage of HP loss from belt/pto/db from one fuel to another, unless there is a difference in the gear ratios for the different fuels?

Nebraska Tractor Test 609:
Test Date: March 1957

Engine: diesel

Belt (max): 38.65 hp [28.8 kW]

PTO (rated eng speed): 34.28 hp [25.6 kW]

PTO fuel use (rated): 14.48 hh/g [2.9 kWh/l]

Drawbar (max): 27.76 hp [20.7 kW]

Test report: PDF file


Nebraska Tractor Test 611:
Test Date: April 1957

Engine: gasoline

Belt (max): 39.31 hp [29.3 kW]

PTO (rated eng speed): 36.21 hp [27.0 kW]

PTO fuel use (rated): 11.66 hh/g [2.3 kWh/l]

Drawbar (max): 28.76 hp [21.4 kW]

Test report: PDF file


Nebraska Tractor Test 622:
Test Date: May 1957

Engine: LP gas

Belt (max): 39.34 hp [29.3 kW]

PTO (rated eng speed): 36.36 hp [27.1 kW]

PTO fuel use (rated): 9.36 hh/g [1.8 kWh/l]

Drawbar (max): 30.07 hp [22.4 kW]

Test report: PDF file
 
(quoted from post at 10:38:01 05/06/09) IH Fan: some part of each of those engines are different.
Click to expand...
Hugh,
What I am refering to is that all the engines are close to the same belt HP, but they do not all lose the same amount at the drawbar. I would think this is the way they are geared, but I imagine they are are geared the same. I suppose the individual tractors can vary a little, so that's probably where it comes from. The diesel and gas lose between 10 and 11 HP and the LP loses 9 at the DB. It may also be how they pull down under load, which would indicate that the LP is a little more efficient. the difference is so small that I'm probably reading more into this than there really is.
 
IH Fan: The gear reduction on all 350 Farmalls would be the same from flywheel to rear tires. I expect any given tractor could test differently (0 to 3 hp) on different days. They could have also used different tractors in each case for the test and had different results. In those days every tractor IH sold exceeded the manufacturers ratings. I don't think they sent a tractor to Nebraska that didn't exceed their own ratings. No two tractors are going to be excatly the same.

The different spread between PTO and Drawbar on a given model can be created by options such as power steering, differences in hydraulics, differences in tires, etc.

For example in the days of 350 there were planetary and clutch type IPTO options, IH eventually changed to clutch type as it was more efficient. Not only did it deliver more power to the PTO shaft, when disengaged it didn't require as much hp, thus more was delivered to the drawbar. Planetary type could rob power if not adjusted properly.
 
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