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Tractor Pulling Discussion Forum

G pullers........need your advice

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MDM

10-03-2006 15:57:04




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I have a stock 1951 G and was thinking of doing some work to it for div 2 pulling. I am on some what of a budget, where can i get the most bang for my buck. I was thinking of getting the valves ground and boring it to .125 over and getting the cam reground....any other ideas????




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DTpullteam

10-05-2006 06:50:09




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 Re: G pullers........need your advice in reply to MDM, 10-03-2006 15:57:04  
Don't want in middle of pi$$ing contest but if you use a reground cam and degree it in, it will help. The gain can be measured on a dyno, somtimes not a lot sometimes makes a big difference. A cam can make or brake an engine. One example, a fresh newly built stroked high compression engine was brought to the shop and it would'nt go past 43 HP on the dyno, replaced the cam, degreed it it in and with a little fine tunning it now puts out 66 Hp on the dyno. The old cam looked fine, no flaws but the grind was off just a little. In all fairness I also have seen a couple times it made very little difference. I feel it,s time and money well spent when your building an engine, just my opion. Good luck with your puller.

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Been there Done that.

10-05-2006 12:59:58




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 Re: G pullers........need your advice in reply to DTpullteam, 10-05-2006 06:50:09  
Excellent reply,agree 100%.



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do the cam

10-04-2006 12:26:09




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 Re: G pullers........need your advice in reply to MDM, 10-03-2006 15:57:04  
in regards to stock cams reply,doesnt know what he/she is talking about.Have your cam degreed and have it reground,will most definetely make a diff.



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how much power

10-04-2006 19:18:55




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 Re: G pullers........need your advice in reply to do the cam, 10-04-2006 12:26:09  
hey genuis, how much power over a stock cam and what changes to the cam with an otherwise stock G?



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read the post

10-04-2006 18:51:05




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 Re: G pullers........need your advice in reply to do the cam, 10-04-2006 12:26:09  
MDM asked for the best bang for the buck longer rods for higher compression will cost under $250 and give 15 hp every time! For not knowing what I am talking about can you say what can be done to a stock G cam to gain 15 hp, lets see this clear the stock G cam has 200 deree@.050 intake and exhaust with a seperation of 114degree please if I do not understand explain and teach us all you genuis

If there was 15 hp in a cam do you think may be J.D. would have done it different!
You only insist that a reground cam is better because you put one in and hope it helped knowing that you spent alot of money on it, along with a days work, and the sales pitch in that fancy half page add that clearly states all cams are not perfect!!!!! !!!!! ! SO IT HAS TO HELP ACCORDING TO HIM! just ask if they will give you your money back if it does not gain a good amount on the dyno

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to the know it all

10-04-2006 19:02:53




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 Re: G pullers........need your advice in reply to read the post, 10-04-2006 18:51:05  
in regards to all your garb talk,I was speaking with the additional comp. and cube increase with the .125 over.If you think the valve timing on a stock deere cam is up to par you are out there pal.I been pulling a 2 cyl.for a alot of years and one of the best gains besides cubes and compression is getting those valves to open correctly.I would bet you that the intake valves are very tardy.



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the know it all

10-04-2006 19:11:09




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 Re: G pullers........need your advice in reply to to the know it all, 10-04-2006 19:02:53  
Looks as though you wrote the add did we hit a tender spot you genuis?



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reply

10-04-2006 19:35:59




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 Re: G pullers........need your advice in reply to the know it all, 10-04-2006 19:11:09  
no,you did not.All i am saying i have increased cubes and comp.and pulled that way for 2 seasons.When we degreed the cam, sent it in to be reground,put it back in, rechecked the cam to see if it was at our liking(which it was slightly off).We then advanced the cam by slotting the cam bolt holes.Once again I will mention we degreed the cam ourselves,I wouldnt buy one off the shelf.You need to see what your timing,lift,etc. is.Just trying to help,a fairly inexpensive addition.

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mr.thinker

10-04-2006 19:25:03




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 Re: G pullers........need your advice in reply to the know it all, 10-04-2006 19:11:09  
didn't write this post?there's a guy in mo, called rudel motor sports maybe they can help?honestly though if all you can do is bore out a g 125, and degree your cam then you havent had a competitive puller for some time.



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oskpuller65

10-04-2006 19:56:51




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 Re: G pullers........need your advice in reply to mr.thinker, 10-04-2006 19:25:03  
Hey mr thinker ? how much comp would hurt a tractor, Or is there a such thing as to much ?



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mr.thinker

10-04-2006 19:59:04




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 Re: G pullers........need your advice in reply to oskpuller65, 10-04-2006 19:56:51  
really depends on the motor? what are we building tonight? a deere , or a moline?



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oskpuler65

10-04-2006 20:00:59




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 Re: G pullers........need your advice in reply to mr.thinker , 10-04-2006 19:59:04  
I lied i have the A, i am having trouble i cant get it to lug down at the end,



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mr.thinker

10-04-2006 20:04:58




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 Re: G pullers........need your advice in reply to oskpuler65, 10-04-2006 20:00:59  
you lied????? isn't there a fraud thing when you sell something on the net, because youdid post an ad that said you sold it to a guy in k.c.?



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oskpuller 65

10-04-2006 20:08:08




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 Re: G pullers........need your advice in reply to mr.thinker , 10-04-2006 20:04:58  
Dont know it was wrong changed my mind did want to let it go, my fault



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mr.thinker

10-04-2006 19:07:31




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 Re: G pullers........need your advice in reply to to the know it all, 10-04-2006 19:02:53  
where do you pull?



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birdd

10-04-2006 16:12:14




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 Re: G pullers........need your advice in reply to do the cam, 10-04-2006 12:26:09  
I agree 100%. A cam reground correctly will make a very noticable differance.I've tried a few differant regrinds through the years ,and have been most satisfied with the ones Triple G Service has done for me.



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2 Cylinder

10-04-2006 08:35:49




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 Re: G pullers........need your advice in reply to MDM, 10-03-2006 15:57:04  
A Flat Head, Aluminum high compression pistons and some porting on the head and manifold will get you 68-70 hp. But you"ll have to run aviation gas or Torco racing gas. I have used this combination for quite some time with good success.



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MDM

10-04-2006 18:07:25




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 Re: G pullers........need your advice in reply to 2 Cylinder, 10-04-2006 08:35:49  
A flat head is probably not going to happen, what can I do to mine to help the most?



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shave it

10-04-2006 21:17:24




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 Re: G pullers........need your advice in reply to MDM, 10-04-2006 18:07:25  
shave your stock head down as far as you can (it will start to cut into the eyebrow between the valves when you're getting there). there will be very little chamber left (practically flat).



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stock cam

10-03-2006 16:17:06




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 Re: G pullers........need your advice in reply to MDM, 10-03-2006 15:57:04  
The best bang for the buck in that class is to raise the compression by lenthening the rods, a stock cam will work better than anything else



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curious

10-03-2006 19:36:57




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 Re: G pullers........need your advice in reply to stock cam, 10-03-2006 16:17:06  
What will the longer rods do to help?



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deere g puller

10-03-2006 20:04:59




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 Re: G pullers........need your advice in reply to curious, 10-03-2006 19:36:57  
it raises the compression...it pushes the piston further up into the cylinder. Same concept as shaving the head, it makes the combustion chamber in the head smaller, essentially pushing it down closer to the cylinder. Just a tighter spot to squeeze the air.



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deere g puller

10-03-2006 16:27:18




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 Re: G pullers........need your advice in reply to stock cam, 10-03-2006 16:17:06  
agreed, and I wouldn't put a flat head on, I would just shave the one you've got down some. You'll have plenty of compression with lengthened rods. a big nut carb and cold manifold will put you up to 60+ horsepower, maybe 65.



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