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JD B with ratio rollers

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What other modifications have you done? How much would it add you think to a semi stock mid 40's B with a 4 11/16 + .045 MW pistons and a Berry cam?
 
Mine is bored to 5.125 and stroked to 7.25, 12 to 1 comp. Stock head, 71 carb, stock cam, heisler manifold. I wouldnt think you would get much more than low 30's if that. Its hard to say with that small of a engine.
 
Heres a list of all my mods. The pistons, Berry cam, .075 off the head and .075 off the block, Pertronix ignition, DLTX 67 carb, Late B gas manifold. I did run it on a dyno after i got it put togeather, but I had a bad bearing in the first reduction cover and couldnt run it that long. I got a consistant 29 before I shut it down. I didnt have a chance to set the carb or timing as well as I wanted too.
 
Diamond they are some on here not me that thinks you would pick up 10 more horses if you droped tha comp.ratio. It was good talking with you.
 
On the smaller engines, after talking to them, prob. the 10 percent. The percents climb the bigger/more radical the engine. On a tractor like diamonds, his gains are not too surprising. So maybe three horsepower for you... but it goes farther than horsepower numbers as well. Id call them, tell em what you got, pick their brain, and see what you think of what they say.
 
On the smaller engines, after talking to them, prob. the 10 percent. The percents climb the bigger/more radical the engine. On a tractor like diamonds, his gains are not too surprising. So maybe three horsepower for you... but it goes farther than horsepower numbers as well. Id call them, tell em what you got, pick their brain, and see what you think of what they say.
 
On the smaller engines, after talking to them, prob. the 10 percent. The percents climb the bigger/more radical the engine. On a tractor like diamonds, his gains are not too surprising. So maybe three horsepower for you... but it goes farther than horsepower numbers as well. Id call them, tell em what you got, pick their brain, and see what you think of what they say.
 
If you're only getting 39 HP with a 300 inch motor and the stock cam, you've got a lot of work to do. The rockers are just covering up for your lack of tuning. Put a good cam in there, tune it in, and toss the rockers.
 
Ohhh! Sorry Mr.KnowALL, 49 hp for that size motor is good, My stock cam is fine, its all about getting the lift i needed and with out the rockers i didnt have it. So if your so smart build me a cam jacka$$...I know where to get more ponies out of it with some minor head work, but since you know it all tell me how much power should my engine be? Thanks
 
Do not be so harsh on Mo. Puller as what he is telling you is not wrong. I might not know everything about pulling but I can tell you a few things about pulling model "B" John Deere tractors as I have built and pulled them for many years. A 300 cubic inch "B" tuned correctly should easily produce 60 HP. I got one that will. It does not have Murphy's roller rocker arms, a modified cam or MSD ignition either. It does have 300 cubic inch and it is tuned accordingly. I won't tell you that it can not be beat as any one can on any given day but I can tell you it very well respected in the antique tractor pulling community. Now if you want to call me a smart a$$ go ahead, If you want to see it run or run against it come to eastern Iowa. Wonder how much power I would have with those Murphy rocker arms and a modified cam?? Good Luck, with your attitude you will need lots of it!
 
60hp? 300 cubes? Bring it to my farm put it on my dyno and prove it. We have 650-670 cube A's 800 plus G's and you are claiming .2 hp per cube. The best I know of with out a two barrel is .17 They have all had special cams done and my B matches the hp specs of theres. Uncle of mine built his first A at 471 cubes, Heisler head and manifold, big carb, Roberts cam and this tractor sounded good and ran great. 73 hp, 171 cubes less you claim 13 less hp. You are having a wet dream sir.
 
I have not seen Mr. Wickman's tractor on a dyno, but have seen it several times on the track and there is not a doubt in my mind it makes atleast 60HP.
 
(quoted from post at 17:00:53 10/21/09) I have not seen Mr. Wickman's tractor on a dyno, but have seen it several times on the track and there is not a doubt in my mind it makes atleast 60HP.
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OH I wonder wonder what Mr Wickmans compression ratio is Diamond stated his . Mr wickman didnt expound much other than what it didnt have.
 
you seem to be forgetting that a B runs faster than an A or G. An unstyled B is 1150 RPM (@540 PTO) and a styled B is 1250 RPM (@540 PTO)(from IT manual). For Wickmans unstyled B thats 18% more than an A. At higher RPM's, the engine will be more efficient than an A, thereby making more hp/ci. A "B" doesn't need a 2bbl as a moderately ported 71 carb is enough to feed it. If you multiply your .17 hp/ci by 1.18 (18% increase in RPM) you get .2 hp/ci. Thats what a good running B is capable of.

I gotta agree with Drew as far as sideline observations, Wickmans B's run very good, and would be hitting the 60 hp mark without any doubt. I'm not trying to poke at you, just stating my own observations. My A is hitting the .17 hp/ci as well @ 540 pto, and .2 hp/ci at 650 pto (corrected for rpm)
 
Not to pile on, but I have to agree with Mopuller, WTW, Drew, Mike, etc...

You should be around 60HP with that setup. There's a reason your 0.17HP/cube doesn't work with on red or orange tractors. RPM's. The B's run at 1500 @ 10%, the A's and G's at 1222. Get er back on the dyno and keep dialing. Something's out of whack. Timing/carb/etc.

ML, Mr. Wickman has 2 very fine B's. They are competitive most places they run. I'm sure there's nothing extraordinary about his compression ratio.
 
So now we are bashing Mr Wickman, a man who has been on here for a long time, with knowledge galore. this forum has become a straight up joke, its just fun to check on here to see what kind of stupid stuff will be said next.
 
(quoted from post at 06:01:50 10/22/09) man did this conversation get lively
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YES who was bashing. the way i see it theys 11 horses difference so they are some differences in the build . unless some body is making a cam core a regrind cam does nothing more than increase the lift maybe change the duration a couple of degrees and it canot change the lsa at all. I have four different regrind cams in my possesion one from comp one from berry one from isky one from jt now they are not jd cam shafts but if you look closely at the cam card they all show different lifts cause they are and the advertise duration is different the largest lift cam having the largest advertised duration but if you look at .050 they are all within 2 degrees of the stock cam grind and the lsa is exactly what it was . I said all that to say this a rocker arm change from 1.5 to 1.85 murphys usual will chang the duration at least 2 degrees and increase the valve lift as well . cam regrinds are usually the cheaper way out . Sonny Daniels If youre around fell free to commit on this post about cam regrinds . This is the information I got from talking with mike jones and harold brookshire about cams.
 
Yes, the eyebow is in the way and obstructs flow.You do have to follow the contour of the head as it slopes up to the intake. A deep straight cut will strike water.
I have a cut away view of a sectioned 60 cylinder head on my cell phone from the 2009 NY Expo.
Trick is to now get the image onto this site. While photobucket is simple enough. It's still too complex for me.
 
(quoted from post at 08:50:54 10/22/09) Yes, the eyebow is in the way and obstructs flow.You do have to follow the contour of the head as it slopes up to the intake. A deep straight cut will strike water.
I have a cut away view of a sectioned 60 cylinder head on my cell phone from the 2009 NY Expo.
Trick is to now get the image onto this site. While photobucket is simple enough. It's still too complex for me.
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I would like to trade cell phone pics with you i have some of the ac block right down to degreeing the cam in i would send for that pic of the 60 head. how much more power does that give. does it increase or decrease the ccs of the combustion chamber and how much. txt message .
 
Why can't you change the LSA with a stock cam as a core? I've done it a couple of times. All you need to do is get the welder out and build up the lobe that you want to move to give the cam grinder enough material to work with. Regards, Mike
 
Why can't you change the LSA with a stock cam as a core? I've done it a couple of times. All you need to do is get the welder out and build up the lobe that you want to move to give the cam grinder enough material to work with. Regards, Mike
 
To be honest I've never dynoed the difference or ran the numbers on a flow bench.
Some compression is lost but the increase in flow makes up for it.
I just found a dongle cable around here that might fit the cell phone.Give me some time to tinker some more.
I did manage to load some images onto photo bucket but the images won't auto appear on this site. Just the text. One has to cut and paste the photo link into the browser???

http://i822.photobucket.com/albums/zz149/buickanddeere/Picture013.jpg
 

Boy, someone took a grouchy pill this morning.

Maybe you should go back to watching your family build tractors until you can act like a big boy instead of a hothead know it all. Like it or not 60 HP should be your target WITHOUT the fancy rockers.

Bring that hot rod to Sigourney and watch Wickman's B's whip your a$$. He's got nothing to prove to you that he hasn't been doing for the last 15 years. I've seen his B's and trust me, they are what he says.

You already know everything, so you won't need any help, but good luck finding it if you do.
 
Easy DP, until you have the experience with B's that Dave W. has, you may want to sit back & listen. Like MO Puller stated, why don't you bring your family's B, A, & your G's to Sigourney. I know there's a few green tractors you could learn something from.
 
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