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Ford 9N, 2N & 8N Discussion Forum

Power

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06-18-2007 04:02:25

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I was wondering if anyone knowes of or has done anything to increase the power of an N. I have an 8 and a 9 that will need rebuilding soon. They could also use another five or ten HP. Anyone have a PERFORMANCE N?

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Ramrod

06-18-2007 07:24:01

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Re: Power in reply to Dan, 06-18-2007 04:02:25

If your tractors need rebuilding, just doing a good rebuild will take them back to spec, and allowing that they were not at spec before the rebuild, you have gained HP. A good running N tractor is a beautiful thing, and will flat work you to death before it quits for the day.

Ramrod

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Roger in Iowa

06-18-2007 06:26:07

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Re: Power in reply to PQ, 06-18-2007 04:02:25

There were kits available from TSC to put pistons (regular flat top and domed high compression) directly into the block. Believe you can buy them for a Mercury car with flathead V-8.

I have an 9N with high comp and an 8N with just flat top pistons running in the block. Both were last overhauled in the early 60's. The 9N required a pressurized cooling system (new radiator) to keep it cool from the extra hp. There are extra ponies, but not 10. It is noticeable.

N's are notorious for having to frequently overhaul and I contend it is because the thin wall sleeves do not transmit the heat away from the rings. Look at the outside of the sleeves when you remove them and you will see they are blue. That is overheating. With rings directly against the block = heat transfer. That is why mine have been running 40+ years without overhaul.

Others on here say this is sacralige as you now cannot install the thin wall sleeves and they have to be bored.

Roger in Iowa

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souNdguy

06-18-2007 06:00:57

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Re: Power in reply to PQ, 06-18-2007 04:02:25

Ditto what the other poster said. For the money involved, plus labor. to squeeze another 10 real hp out of the 8n.. you might as well buy a bigger tractor.. and then you'd have both.. or you could sell the N and come out with only a small outlay of cash. Go for an 8xx and you will have gained nearly 20 hp ..

Soundguy

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Brian Bell

06-18-2007 05:08:22

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Re: Power in reply to PQ, 06-18-2007 04:02:25

This is a subject that has been brought up many times on this board. You can probably check the archives to see other posts. The skinny of the deal is this: for the amount of $$ it would take to get a noticeable difference, you might as well buy a 60x or 80x series ford tractor. the 25 - 30 HP range is all these little tractors are good for with the engine design they have. You could always put in a inline 6 or v8 flathead...but again, costly. HTH

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