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Wc tire suggest

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=166706
Printed Date: 28 Apr 2024 at 11:52am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com


Topic: Wc tire suggest
Posted By: bradley6874
Subject: Wc tire suggest
Date Posted: 17 Dec 2019 at 7:34am
Ok bought a stock original wc for my girlfriend to pull with at 3000 and 3500 3.5 mph its getting 175 govner spring and d17 weights to get the rpms up it’s got 13.6 28 on it now will the speed be ok with 15.5 38 ? I also have a set 18.4 26 I can build light spoke wheels for

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You can wash the dirt off the body but you can’t wash the farmer out of the heart and soul



Replies:
Posted By: bradley6874
Date Posted: 17 Dec 2019 at 8:17am
. She’s definitely a keeper she spent several hours Sunday power washing years of grease and dirt off

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You can wash the dirt off the body but you can’t wash the farmer out of the heart and soul


Posted By: Sugarmaker
Date Posted: 17 Dec 2019 at 10:51am
Bradley,
 As long as your pulling rules allow those sizes you should be good to go! Some of the pulls I go to they pretty fussy on tire sizes. Here theyt allow one sire size over stock. So We have several WD series tractors with the 14.9's 
Someone like Dr. Allis can give you the speed info with different tire sizes. Me not so much. 
Hey good looking tractor, and it sounds like she is excited about it too! Will look forward to some pulling pictures as you progress with the tractor and your season!
Reminds me I need to go finish those rim mods for the WD.
Regards,
 Chris



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D17 1958 (NFE), WD45 1954 (NFE), WD 1952 (NFE), WD 1950 (WFE), Allis F-40 forklift, Allis CA, Allis D14, Ford Jubilee, Many IH Cub Cadets, 32 Ford Dump, 65 Comet.


Posted By: bradley6874
Date Posted: 17 Dec 2019 at 10:55am
Plans are for Harrisburg farm show Jan 8 debut our rules here are black round and made out of rubber either cut or not cut

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You can wash the dirt off the body but you can’t wash the farmer out of the heart and soul


Posted By: frnkeore
Date Posted: 17 Dec 2019 at 11:35am
I ran some numbers for you, using Nebraska Tractor Test info, for tire size and RPM.

The numbers result in the difference between 1300 rpm vs 1750 rpm and 11.2 x 24, WC tires, 43" in dia. But you may have to multi ply these numbers by 1.075, because they list the steel, 40" wheels, with the same 2.5 & 3.5 mph, for first and 2nd gear as the rubber 11.2's.

1st gear stock, 2.5 mph @ 1300 rpm:
18.4x26 = 4.47 @ 1750
15.5x38 = 4.87

2nd gear stock, 3.5mph @ 1300 rpm:
18.4x26 = 6.25 @ 1750
15.5x38 =  6.82





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Frank
1959 D17 Series I #24001+, '59 D14
'55 & '59 Ford 850 & 861
Ferguson TO 35 Deluxe, Oliver 70 and 5 more.


Posted By: DrAllis
Date Posted: 17 Dec 2019 at 12:39pm
15.5 X 38's on a WC with 30 HP won't work will they ?? You'll kill the engine most of the time in LOW gear.


Posted By: bradley6874
Date Posted: 17 Dec 2019 at 1:33pm
My question is more will the gearing work at 3.5 with 38 inc tires with more power or is the gearing just to high ....and something else need to change

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You can wash the dirt off the body but you can’t wash the farmer out of the heart and soul


Posted By: DrAllis
Date Posted: 17 Dec 2019 at 2:22pm
3.5 MPH on any standard geared WC works just fine with 15.5 x 38 rear tires IF YOU HAVE ENOUGH ENGINE TO HANDLE IT.


Posted By: frnkeore
Date Posted: 17 Dec 2019 at 3:31pm
Originally posted by bradley6874 bradley6874 wrote:

My question is more will the gearing work at 3.5 with 38 inc tires with more power or is the gearing just to high ....and something else need to change

For your combo, 3.5 mph, will put you at 1370 rpm with the 18.4's and 1258 rpm with the 15.5's.

I think you would be better off, with the stock cam and take the engine to, 4 1/8 x 4 1/2 (240.55 CI), and use a bigger carb.

At least you'll have your power at the 3.5 mph.  I think it would work ok. At 5800 lb, I spin my tires (16.9x28), pretty easy with my stock D17.

Oh, and get the engine to at least 9/1 compression.


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Frank
1959 D17 Series I #24001+, '59 D14
'55 & '59 Ford 850 & 861
Ferguson TO 35 Deluxe, Oliver 70 and 5 more.


Posted By: bradley6874
Date Posted: 17 Dec 2019 at 8:54pm
Thanks frnkeore will probly stay with the 28 untill the stroker is finished up then change to 38 with All THE POWER DR SAYS I NEED

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You can wash the dirt off the body but you can’t wash the farmer out of the heart and soul


Posted By: alan-nj
Date Posted: 27 Dec 2019 at 6:53am
Don't forget you need wheelie bars for the Farm Show

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If ignorance is bliss, than happy days are here again.


Posted By: bradley6874
Date Posted: 30 Dec 2019 at 11:51am
Yea alan our club requires them on ALL tractors. Slow fast dosent mater.... that rule lowered our insurance cost

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You can wash the dirt off the body but you can’t wash the farmer out of the heart and soul



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