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ford 8n horsepower

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Bob Fricke

11-28-2004 03:05:04




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I have a 1952 sidemount 8n. Can any one tell me what the horsepower for this motor is and is there any way that it can be enhanced




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Dell (WA)

11-28-2004 17:32:43




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 Re: ford 8n horsepower in reply to Bob Fricke, 11-28-2004 03:05:04  
Bob..... ...the 52 4-cylinder flathead N-Engine is certified at 26.19hp by the University of Nebraska Agricultural Engineering Dept. And "Ford" was responsible for that.

Seems some flim-flam shyster from Minnieapolis started a Tractor manufacturing business, named after one of his mechanics. He was hoping ol'Henry would buy him out when the popularity of the "Model T" became so evident. Ol'Henry didn't like lawyers, so he named his tractor company Ford & Son and made the Fordson Tractor.

Meanwhile influential Nebraska Senator Cozier bought a Ford tractor that fell apart on the drive home from the Tractor Dealer. He was so angry, that he got the State of Nebraska to pass a LAW, saying iff'n ya wanna sell a tractor in Nebraska, ya gotta have it tested by the University of Nebraska. Tractor Mfgrs found that the U-Test was better advertizing than all the marketing people combined.

But to answer your original question. You want cheap horsepower? SUPER-CHARGE it with a Chevy 454 V-8 SMOG-PUMP from the junkyard. Use a M/S Jubilee carb so the carb input faces the pump output. Yer on your own for brackets. You doubt? Do a web search for "Dirt Cheap Supercharger" by Steven A Richmond. Also gitta hot-rod book on supercharging, $20 cheap, and read about it..... ...Dell

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jhaa_lives

11-29-2004 04:38:08




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 Re: ford 8n horsepower in reply to Dell (WA), 11-28-2004 17:32:43  
Uh Dell... gonna hafta contradict you a little.
Nebraska tractor tests tested the power output of the tractor and the PTO. The easier case of the PTO is just hook the shaft up to a machine, crank up the engine to rated RPM and put a load on it. The "tractor" HP is a bit more complicated as it is a measure of the engine power and tractor grip to the ground on their test track under their conditions. i.e. a super light aluminum tractor with a stroked and blown chevy 454 would not have high "tractor HP" cause it doesn't have good traction to the ground, even though we know the engine is MUCH more HP.
Case in point with the Funks. The straight 6 "engine" was rated 95 HP & ~200 lb ft torque. Putting this in a 8N funk does not give you a 95 HP tractor (John Deere 4020 is a 95 HP tractor for comparison sake). It will however give you a tractor that can put out ~25 HP to the wheels and ~25 HP to the PTO at the same time and not lug the engine down.

The simple answer is how automotive engineers test engines (i.e. 95 HP straight 6 engine) and Nebraska tests tractor HP (i.e. ~25 HP 8N) are not comparable.

Iff'n I had to guess the max HP on a well tuned stock 8N engine, I'd guess around 60 HP.

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Dell (WA)

11-29-2004 13:43:19




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 Re: ford 8n horsepower in reply to jhaa_lives, 11-29-2004 04:38:08  
you write..... ..."Iff'n I had to guess the max HP on a well tuned stock 8N engine, I'd guess around 60 HP"..... ..well you'd be wrong.

I've spent several hours researching for the 1940-41 ungoverned N-Tractor engine specifications as used in Ford's economy version City Delivery Vans and Pickups and also Ford's GPA WW2 military jeep version. Its out there somewheres. I seem to remember 38hp or 42hp advertized. Which is fairly respectable for a 2-Litre (120 ci) low compression flathead engine. But still won't gitt'em over 50mph.

Yes, I used "shorthand" when I stated U-Neb 8N' test was 26.19hp. I should have also referenced the U-Neb test #443. Yes, that would be belt pulley rated at 1358rpm, engine rated at 2000rpm. Remember the N-Engine is governed to 2200rpm MAX.

Respectfully, Dell

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souNdguy

11-29-2004 12:54:02




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 Re: ford 8n horsepower in reply to jhaa_lives, 11-29-2004 04:38:08  
If you are talking HP to ground.. then I think you are refering to drawbar hp.. as opposed to flywheel or pto hp.

And I seriously doubt the N engine, In any souped up state, let alone stock, is gonna output 60 hp at the clutch.

Soundguy



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jhaa_lives

11-30-2004 05:58:22




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 Re: ford 8n horsepower in reply to souNdguy, 11-29-2004 12:54:02  
Just a guess on my part regarding the HP of the stock engine. ASAE specs for engine testing have changed over the years, and I'm not sure if they had clear specs on engine testing in the 40's.

One way to test the engine HP (kinda like cheating) is to take off the fan, take off the water pump (supply cool water via an external system), take off the oil pump (supply cool oil via an external system), take off the oil filter, take off the air filter, take off the generator (supply electrons via an external system), take off the governor, etc... Measure the HP of the engine now.

Measuring HP using the procedure mentioned above does give an accurate reading of the HP of the four cylinders. However, under no "real" situation is this a realistic number... but before standards for testing were established this was supposedly done by some manufacturers. This is one of the reasons for establishing standard testing methods. Compare apples to apples. Maybe that's how the "Ford" guy in Nebraska tested his engines!

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souNdguy

11-30-2004 06:07:06




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 Re: ford 8n horsepower in reply to jhaa_lives, 11-30-2004 05:58:22  
I would think the nebraska tests are fairly comprehensive... They tested lots of tractors.

I don't want to know the theoretical hp develope dby a bare stripped engine.. I want to know the real available hp at the flywheel.. not what 3/4 of the engine could generate in a science lab.

Reminds me of lawnmower engines... the hp #'s they quote seem like they are using top fuel, and the engine reved up at the point of coming apart, rather than the throttle setting for mowing. I especially like the 25 hp lawnmowers I see at TSC, etc... they are in no way comparable to a ford N..

Soundguy

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MikeT

11-28-2004 13:32:50




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 Re: ford 8n horsepower in reply to Bob Fricke, 11-28-2004 03:05:04  
Put two more cylinders on it and you can squeeze out 95 hp!



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( Pic ) Ken N Tx

11-28-2004 07:49:21




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 MORE POWER !!! in reply to Bob Fricke, 11-28-2004 03:05:04  
third party image

.



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Luisa Conant

12-02-2004 16:55:53




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 Re: MORE POWER !!! in reply to ( Pic ) Ken N Tx, 11-28-2004 07:49:21  
Cool tractor! Have you seen the 8N with the V8 conversion and a blower?!! Now that's more power!!



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Dave H (NY)

11-28-2004 04:35:53




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 Re: ford 8n horsepower in reply to Bob Fricke, 11-28-2004 03:05:04  
It's 23 horse, and best way to get a little more out of it is with a fresh rebuild, it should have enough power to do what is was meant to do, but make sure the governor is working or else it will feel under powered.



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