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Tractor Pulling Discussion Forum

Re: What size tires with 200 hp

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778899m

09-26-2013 19:04:18
162.72.64.132



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bigger is better only in your imagination,lbs per sq. inch is what hooks,and speed??????????????? Is 200 real,imagined or wanted,is it enough to go 14-16 mph? Different tracks,conditions dictate more than some hypothetical situation.




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VicS

09-26-2013 19:54:16
70.195.65.182



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 Re: What size tires with 200 hp in reply to 778899m, 09-26-2013 19:04:18  
778899 have you won any big pulls with littler than the max allowable tire size? If you have won 4 or 5 National pulls I will shut-up and never mention it again. Vic



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A.P.

09-28-2013 09:16:37
65.183.164.82



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 Re: What size tires with 200 hp in reply to VicS, 09-26-2013 19:54:16  
As a very general rule it is probably correct. But there are a boat load of conditions under which it isn't correct. There is no perfect tire size, brand, tread, cut, rim width, tire pressure, etc. Anyone that tells you a particular tire size, etc. is the best is forgetting to tell you the conditions it didn't work or don't want to remember the times when they were beat by tires bigger, smaller, wider, narrower, shorter, taller. I've seen many of the exceptions happen over the years I've pulled.

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RICHB

09-27-2013 09:01:25
208.105.96.178



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 Re: What size tires with 200 hp in reply to VicS, 09-26-2013 19:54:16  
I can justify the bigger is better tire dispute IF you are in a mph class,In non speed limit classes ground speed and HP are king,If my tractor is 2mph faster than yours with like HP even if I am running a smaller tire 9 out of 10 times I win..As long as I don't screw the physics up..I have beat countless tractors with my 18.4x34 VS their 18.4x38 why???? I had more groundspeed running a gear higher.In MPH class I agree I would want 18.4x38s on my 77...AND I have also been beat by a tractor with 14.9 or 15.5 tires...groundspeed!

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Goldsburg

09-27-2013 06:43:48
71.13.117.162



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 Re: What size tires with 200 hp in reply to VicS, 09-26-2013 19:54:16  
Vic -

He may not have, but I have...

Bigger is NOT ALWAYS better. It definitely depends on track conditions. As stated previously, matching your ground pressure to the "ideal" ground pressure of the track is where the win resides!

I agree with the philosphy of doing whatever it takes to get most out of your tractor. However, I prefer running 4th gear with slightly smaller tires than running 3rd gear with slightly bigger tires. In MOST cases, the momentum will override the marginally higher traction...

Regards,

Goldsburg

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778899m

09-28-2013 10:20:46
198.45.168.128



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 Re: What size tires with 200 hp in reply to Goldsburg, 09-27-2013 06:43:48  
Goldsburg,I do have and am glad others see it as it actually is,small trumps large many times.So many different scenarios in all motor sports,driver choices,track reading ability all matter more than tire size.Power does no good if it isn't hooked up,speed is hard to control with out proper balance,ect.Larger tires alone hurt more guys in my classes than helps them,granted,sometimes,larger is better.

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778899m

09-27-2013 16:32:25
198.45.168.128



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 Re: What size tires with 200 hp in reply to Goldsburg, 09-27-2013 06:43:48  
To Vic,my history and winning record all over the country,in many classes speaks for itself,for almost thirty yrs. Smaller tires win many times over the largest allowed,mostly in smaller weight divisions.Most on here are small time antique pullers,BIG POWER,BIG POCKET BOOKS are a whole different story,when you have 200-three thousand hp,it takes as big as you are allowed,but not for some putt - putt.Every dog has it's day.Every tire and every tractor can and has won on a given day and track.

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