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John Deere Tractors Discussion Forum
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Late B experiences and info

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B-maniac

10-22-2006 14:12:11




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It appears to me from all the info I've seen and heard,from people with dyno's and pullers,that the late "B" 190 ci. is just about as efficient as it can get without forced induction,nitros, or ci. increases. Is the stock head/valves/intake the bottleneck? Does the 50 gain THAT much more with 2 carbs? Seems to me that it's doing just about all you can expect from 190 cubes and if you want more you had better get an "A"or "G" to start with. No,I'm not going to "chop up" my stock "B",but would like to know it is the best it can be,tune-up wise. Hate to see someone chop up a B just to have the same as a stock A. Just wanted to get some input from some of you who have been there and done that,so to speak. Mine won't be pulled too often,but this summer I saw two different late B's (unmodified in my opinion) take 4500-5000 deadweight class in our area. Thanks in advance for your responses.

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Mike M

10-22-2006 16:52:53




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 Re: Late B experiences and info in reply to B-maniac, 10-22-2006 14:12:11  
Those late B's are pretty amazing when in good shape. I have not dynoed but a few of the ones I have had. I rebuilt one once and it had M & W add power pistons and I think it would crank out 35 HP everything else stock. I had a model 50 that would do 31 HP all day long which I think is what they are rated at,but it was by no means fresh. The B's seem to put the power to the ground better than a 50 I guess because the 50 is heavier and running more stuff like live power.

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