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Tractor Pulling Discussion Forum

Cyl head chamber in IH H

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ChadS

05-31-2005 10:32:46




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I set the head on the bare block for my H (no pistons) and had a good long look at how the chamber sits over the top of the pistons. I found that on the spark plug side, the block actually blocks part of the compression chamber, along the radius of the block bore. Next I seen that the chamber could be opened up a bit further around the radius of the bore, so it has more area to allow the explosion to take place. Im wondering, if I could open the sides of the chamber, it may help exhaust gasses escape a little better. It does not appear to be much help to the intake valve by opening the side of the chamber. Head gasket surface is OK, and room to play with. My question is,, would it help the engine breathe on the exhaust stroke by tapering the side of the chamber closest to the exhaust valve to match the radius of the block bore. Its not much material to remove,, Ive heard that the square corners wont flow well in very high compression situations. What would this proceedure be called?? Thanks! ChadS

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CASEPOWER

05-31-2005 10:48:40




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 Re: Cyl head chamber in IH H in reply to ChadS, 05-31-2005 10:32:46  
If you are talking about unshrouding the valves, it works well with high or low compression, but I think you are refering to the area inside the chamber as the "quench" area, where the mixture is compressed. It could make a difference, (angleing it to the cylinder bore), but how much is hard to say. I would guess the more rpm's, the more it would effect it. The Project M took first place in all three of its classes this past Sat. Pretty good for its 3rd. time out and plenty of competition. I beleive it also placed the first two times out also. The owner seems very pleased!

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ChadS

05-31-2005 16:10:10




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 Re: Cyl head chamber in IH H in reply to CASEPOWER, 05-31-2005 10:48:40  
Kickin A$$ and taking names!!! Hope to see pictures of it in action in OPP!! We ran Saturday at Mentone, IN, I got 1st in 0-4500 mods,on the 50 H,, 3rd in 4501-5500 mods on the 50 H,, 3rd in 5501-6500 farm stock, and 2nd in the 6501-7000 farm stock on a very nice Farmall M. I was a guest puller on that tractor, and its a good running M!! Had enough $$ left over to hit Mcdonalds on the way home!!! I did open up the side areas a tad on the head, and I got to make a mock piston design for the big H engine, well,, little H some would say,,, LOL!! Got #1 turning with the head on, and not hitting, the domes are much much bigger than the old 270,, Im going to have to cut them back more to decompress it, I know if I left em alone, it would probably be round 325psi, and thats way too much!!! If i get 285-300 Ill be estatic!! I did finally get the oil gallerys brazed up, and sealed, and clearenced,, soon,,,, very soon Something Wilder will return. Thanks for the reply! Great job fellas on Project M!!!!! Way to git r done right!!!!! ChadS

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Flogger

05-31-2005 14:28:09




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 Re: Cyl head chamber in IH H in reply to CASEPOWER, 05-31-2005 10:48:40  
Three firsts? Glad to see somebody could beat the old 560 (Or part of a 560.). Sounds like the project M boys have it about dialed in. They probably shouldn't try to win every time though. Next thing you know some jack-leg will try to protest their block, or the way the sunlight hits their tires or something. Naw everybody involved did a great job on that tractor, and I'm sure it's gonna be the one to beat from now on.

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CASEPOWER

05-31-2005 16:13:47




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 Re: Cyl head chamber in IH H in reply to Flogger, 05-31-2005 14:28:09  
What surprised me the most is there was two different drivers. One pulled one class and the other pulled two classes. They must have there ducks in a row! The 560 may have had problems because I heard the track was a very tight power track. I would bet your tractor would have done good.



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Flogger

05-31-2005 19:48:05




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 Re: Cyl head chamber in IH H in reply to CASEPOWER, 05-31-2005 16:13:47  
'Hate I missed it. Not sure if I'm making it to Marion or not. SATPA is doing the Albemarle NC pull on the 11th. May try to make that one. You and LW oughta come. I think "Barely Legal" could probably hold back on the throttle enough to keep the horn from blowing, and as Danny Hogge once said "nobody ever got carried to jail for blowing the horn".



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supermpuller

05-31-2005 14:45:07




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 Re: Cyl head chamber in IH H in reply to Flogger, 05-31-2005 14:28:09  
You sure don't want to win out of town, at Mentone IN, a couple of friends got DQ for having press steel wheels on a M plus turn buckles on draw bar, and a 77 Oliver pulling in the 4501 to 5500 lbs got DQ for weighting 4480 after he won, they said he was to light, they figured his pulling distance at 4501, I could see it if he was to heavy but being to light didn't help him it hurt him. If they don't want out of towners there just say so, don't pull crap like that.

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ChadS

05-31-2005 16:00:43




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 Re: Cyl head chamber in IH H in reply to supermpuller, 05-31-2005 14:45:07  
I was DQed as well for being 10 under the weight. In the 4501-5500 and like classes, we want the tractors to weigh at least 4500 and no more than 5500 etc etc etc. Now, if he had pulled a good distance on the sled, that 4501 weight figure would make the percent higher. Of course, so would 4480 would be higher yet. I do wish pressed steel was allowed in the farm stock classes, heck,, all the other models run em, so why not the IH's??? Bad thing about IH is that they only had cast rear wheels as the standard option, the rules say, if cast wheels were orginal, they must be used, if the model was offered both cast and steel, then they can run steel. it does hose the IH's, I agree. Throw on the casts and pull!! The ones that have steel dont pull well anyhow,,, at least in our farm stock classes. As far as the turnbuckles, well, we had that come up many times over the years, for the IH's, they have to have the origianl supports, well basicly original equipment. We did have a ollie a few years back break a turnbuckle and that is why we have that in place, we dont have wheelie bar rules in this class, and I would go out on a limb and say if an accident occured, due ot the aftermarket part failure, the insurance would not honor the claim, if that was the case. so we like to keep the hitches in stock form. I say come back, within the rules and pull, if that was a one time deal to pull with us, and he runs the steel wheels all the time, then it would not be worth the effort to convert it back to cast, but, if he did pull all the time with us, it may be no problem to set them up to our rules. Our farm stock rules have changed considerably from last year, suitcase weights, and being able to put them anywhere is a huge plus in my book!! I cant count how many have been ticked off and not come back just cause they only used suitcase weights, well, maybe they will come back since they can. Not much give on the cast wheels, and the turnbuckles,, its always been that way in NIATPA. CHadS

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Flogger

05-31-2005 19:38:52




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 Re: Cyl head chamber in IH H in reply to ChadS, 05-31-2005 16:00:43  
One question Chad... Did your "sweet thang" get to pull one of those farmalls? 'Presently at odds with my queen but never could get her anywhere close to the seat of that tractor. 'Probably been spanked by women [In tractor pulling that is.] about as many times as I have men.



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ChadS

06-01-2005 06:34:12




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 Re: Cyl head chamber in IH H in reply to Flogger, 05-31-2005 19:38:52  
LOL! SHE SURE DID!!! She placed first in the 0-4500 farm stock class on our 53 Super H!! First time ever to pull, last week was the first time she ever been on a tractor, so she practiced all week. (couldnt get her off of the tractor to bring it in the shop to set it up for the pull!!) LMAO!!! Im very proud of her, she did alright! (she beat the defending points champion!) ChadS



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