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The last M670 Super Gas

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minnimo70

03-03-2002 23:14:26




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I recently found out that the M670 super we own is the last one made in 1970, this would make it the last M670 super gas ever made. I was just wondering if anybody would have a idea if this is worth anything, and if so how much. I am not going to sell it but I would just be interested in knowing. Thanks for any help.




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Doug

03-07-2002 17:52:36




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 Re: The last M670 Super Gas in reply to minnimo70, 03-03-2002 23:14:26  
Our S670 gasser has had more than 100 hp at 540 pto speed for several years. Weighs 6200, fibeglass nose, no 3pt, 18x38 B.F.s, working pto, pulling hitch, and tons of fun. Never been beaten by a 4020. Toughest other tractor in the area is a 1550 gasser, also more than 100 hp. Belongs to my brotherinlaw. They pull 7000 and 8500 classes in 3rd high most times. We do sell fiberglass noses for the MM's. Need other pulling parts?, we have some. Doug

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minnimo70

03-07-2002 20:49:10




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 Re: Re: The last M670 Super Gas in reply to Doug, 03-07-2002 17:52:36  
What would you estimate my power at with the combination I was planning on useing this year, also how much do you get for the fiberglass noses. We also have a G900 that is 800 ci and runs 3000 rpm in the hobby class, he needs a lighter nose bad. Also wondering what other parts you have that would work for stock rpm's.



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Tom in Mo.

03-05-2002 19:42:13




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 Re: The last M670 Super Gas in reply to minnimo70, 03-03-2002 23:14:26  
It's worth what any 670 Super is worth, in like condition. What makes it special is that you and I and lots of other M-M enthusiasts can appreciate what it means to own the last of a line



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minnimo70

03-05-2002 20:14:07




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 Re: Re: The last M670 Super Gas in reply to Tom in Mo., 03-05-2002 19:42:13  
Thanks for the reply. That was kinda along the lines of what I thought. No matter what the price I would not sell it anyway, it's too fun winning at the tractor pulls with it!



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Tom in Mo.

03-06-2002 19:01:23




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 Re: Re: Re: The last M670 Super Gas in reply to minnimo70, 03-05-2002 20:14:07  
I have a 670 LPG. Curious as to what gear you pull with and do you engage the torque A while pulling? Are you using any added weights? Thanks.



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minnimo70

03-06-2002 22:43:34




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 Re: Re: Re: Re: The last M670 Super Gas in reply to Tom in Mo. , 03-06-2002 19:01:23  
I pull in the seven thousand pound farm stock class in our association. To make this class I had to put pressed steel rims on dual hubs on the back for rear rims, which was a task in it's own because moline never made 9 boldt dual hubs for these tractors because they had their own special way of mounting up duals. And also M&W made very few hubs for them too, to help things out the only other tractor that I know of that shares a three inch axle with the 670 is a 830 Case. To solve the problem I got Cockshutt 560 hubs which are 2 and 15/16 and had them bored out, this worked great. I also put a narrow front on with really small three-rib ag tires. On the back I removed the three point arms and the drawbar and bolted a loop onto the swinging drawbar brace. Other than that all the rest of the factory components are in place. With me (240.lbs) and 5 gallons of gas the tractor weighs 6850 lbs. I usually carry one or two hundred pound weughts on the back of the tractor. Despite all of this the tractor is still front heavy, the cast iron nose is not helping me much. I pull in second gear, when I leave the line I have it in high range, once a good load comes on to the engine I have to shift into low range. On a loose track I can pull third low. The engine is mostly stock, I have updated the ignition to electronic and have installed a hot coil and good wires. Other than that I have just done alot of fine tuning, I almost forgot, I also turn the hydraulic pump all the way down, I was told that even on stand by that pump takes 6 to 7 h.p. I have not been able to dyno the tractor yet but I would estimate the power output at roughly 85 h.p. This year I am going to put the high altitude l.p. heads on it and open up the throte in the carburator, also going to make high ratio rocker arms for it. I plan on running it on 116 octane racing fuel and am hoping for 110 h.p. In our association the farm classes have a factory h.p. limit which does not seperate between turbo and non-turbo. For seven thousand farm the factory h.p. limit to get into the class is 75 h.p. so I have to pull against small turboed allis's and fords which when they turn them up make pretty good power. I have beaten them before, but only on excellent tracks where I can balance well. If you have any more questions please feel free to ask.

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