Tire Project Sneak Peek

martyh

Member
My new rear tires from Simple Tire are here already! 18.4 x 16.1! Understand they're not mounted or inflated yet. The profile will be much more round and end up about 43.2" diameter. Those R-1's on the tractor now are 46.5" so you can see how much larger in diameter the new tires will "grow". The fronts in the picture are the new 15 x 8 wheels with 11L15 tires on them. The doghouse is still off for the radiator swap. I replaced the fueltank, resealed the valve cover and replaced gauges and wiring all of which was much easier to do with the tractor opened up like that. It looks silly but it was very handy.

The rear rims and separate centers from Hey Wheel are set to arrive today.

28658.jpg
28659.jpg
 
A good tire won't "grow" much when
inflated, be interesting to see how tall
they are. Looks simular to what would be on
a LCG tractor
 
(quoted from post at 07:28:27 10/06/15) A good tire won't "grow" much when
inflated, be interesting to see how tall
they are. Looks simular to what would be on
a LCG tractor

Not "grow as in "stretch", perhaps I should have said round out more. Right now the center is actually concave.

They're supposed to look like this when they're mounted and inflated.
28662.jpg
28663.jpg
 
The inside diameter is so much smaller than you current rear wheels that I doubt they are going to look like that last picture you posted. The rear rims aren't going to be much larger in diameter than the fronts.
 

We'll just have to see. The rims are 16" wide so that should pull in the centers some and certainly the center of the tread will not remain concave. Any way you slice it, I own 'em and with $1400 just for the tires, I'll have to use them. lol. They need to be the full 43.2" published diameter or I may have to find a set of axle knees from an LCG to level the tractor back out.
 
(quoted from post at 11:36:08 10/06/15) I like the look ! Forward the information to me please! email is open.....Jim in N.M.

The rears are 18.4 x 16.1 Titan Torc-Trac from Simple Tire in Georgia $1395 delivered. I have custom 16.1 x 16" blank rims and unwelded in centers drilled for my Ford 640 from Hey Wheel in Kansas $411. The fronts are 15 X 8 farm implement wheels from ME Miller in Ohio with American Farmer 11L15 implement tires and tubes also from ME Miller in Ohio $400.

At this time there is no guarantee the rear tires will round out like the pictures I think they're going to be more round than deat flat but not as round as the narrow widths of the same tire are.
 
I fixed my version of a lcg one time and used 9x10 front
implement tires , I think I changed the front hubs for
that one I can't remember now been to long .
 
(quoted from post at 23:26:24 10/06/15) I fixed my version of a lcg one time and used 9x10 front
implement tires , I think I changed the front hubs for
that one I can't remember now been to long .

I don't think I'm going to have to do that. I really didn't have to have a speed reduction nor a lowering of the CG for my property. Their just nice side effects of the tires I chose. Potential 7% speed reduction and an increase of 8" inches in the rear track width. I am mostly wanting to be as gentle to the grass as possible. I have a late model John Deere 770 4 x 4 diesel with Bridgestone turf tires that is very easy on the grass so I knew I wanted to head in that direction. The front tire issue is solved. I took off the high center 3 ribs and replaced them with very balloon like 11L15 implement tires. My current R-1 rear tires are 46.5" tall. These new 18.4 x 16.1 are supposed to be 43.2" diameter so that will only lower the back end maybe an 1 1/2". They're just over 40" tall unmounted and uninflated so I think that 43.2" diameter is legit.
 
(quoted from post at 17:34:03 10/22/15) Marty, hadn't seen you on the forum in awhile and wanted to see how the tires turned out.

I had one of the tires mounted to the bare rim last weekend so I could inflate it to proper shape and use it to set the proper offset to the wheel center. I didn't get that far but the tire is mounted and inflated and I am happy to report that the advice I was getting here was 100% wrong. The tire fully rounded out to the shape and dimensions I expected it to. It is nothing like the square shouldered LCG Ford tires I was told it would be and it did indeed "grow" to the full 43.2" diameter. I am very excited about the project. I am out of town this weekend and the 10 acres we're having fenced will be done Monday so the tire project should be front and center after that. This isn't a picture of my tire but mine looks just like this....


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You have the tire grossly over inflated... should have about 7 to 12 lbs of air in the rears.. .YOu inflate rear tires only enough so that the full tire width is flat on the ground with the load your carrying. The purpose is to get maximum traction without tearing up the sod. over inflation will only allow a very small portion of the tread to touch the ground and defeats the wide tread design. It also damages the cords in the tire and causes them to stretch and break meaning the tire may come apart and fail sooner. Check your owners manual on proper inflation of rear tires.
 
Great to hear things are working out the way you want them. Some times you just have to do things your way. It might be right, it might be
wrong in the end, but at least you did it the way you thought would work out best. I got side tracked on my tractor for awhile. The new
house I'm building it taking up a lot more time than I planned. Probably won't get back to it till December.
 
(quoted from post at 11:37:34 10/23/15)


You have the tire grossly over inflated... should have about 7 to 12 lbs of air in the rears.. .YOu inflate rear tires only enough so that the full tire width is flat on the ground with the load your carrying. The purpose is to get maximum traction without tearing up the sod. over inflation will only allow a very small portion of the tread to touch the ground and defeats the wide tread design. It also damages the cords in the tire and causes them to stretch and break meaning the tire may come apart and fail sooner. Check your owners manual on proper inflation of rear tires.


My tire is inflated to 10psi by Brookville, Indiana Firestone to 10psi. My John Deere 20 psi pressure gauge also reads 10psi. Every picture I have ever seen of a Titan Torq-Trac is ROUND shouldered. The last picture I posted, the round Titan Torq-Trac with the yellow rim, that is straight from Titan. I'm thinking they know how to inflate their tires. My tire looks just like it only with a smaller diameter rim. The 18.4 X 16.1 according to Titan has a max inflation of 16psi. I'm not damaging cords or breaking anything.
 

firestone shows 10lbs for each tire for carrying 3300 lbs or 6600 lbs total on the rear tires of a tractor in that size. I'm not sure your tractor can carry that much. The lowest pressure on the chart is 6 lbs supporting 2500 lbs per tire or 5000lbs of rear weight for that size tire. 5000lbs would be more that the whole tractor, front and rear, and implement.
 
Can't wait to see the finished product.
as you have found, tires even the same size on the same rim
are different depending on the manufacturer.
I've had square profile turfs, and others that were as round as a donut at the same pressure on the same rim.
You saw the 8N I pictured in an earlier thread, with the squarer profile tires installed and the offset that tucked the tires in nice and tight.
Well, here is a pic of when I went and bought those 'square ones'.
As you can see, the ones on the 8N before that time were much rounder, and had lots of negative offset, so they stuck out too far.
(notice my removed trailer fenders......)
all 4 of these tires were the same size as yours....all 4 on the same width rim.
And actually in this pic, when I bought those square ones, they were at a far higher pressure than the 12 in the ones on the tractor.
quite different in their looks.
tire%20comparison_zpsyj0r8e2x.jpg
 
(quoted from post at 13:43:55 10/23/15)
firestone shows 10lbs for each tire for carrying 3300 lbs or 6600 lbs total on the rear tires of a tractor in that size. I'm not sure your tractor can carry that much. The lowest pressure on the chart is 6 lbs supporting 2500 lbs per tire or 5000lbs of rear weight for that size tire. 5000lbs would be more that the whole tractor, front and rear, and implement.

Oh, I see your problem. The 10psi the tire has in it right now is arbitrary. I'm not going to run at that weight. I asked for 10is when they mounted the tire to be between anywhere form 7-12 and confirmed 10 just to make sure they gave me 10. All I'm doing right now is mocking up the left rear to set the offset of the wheel then the tire gets removed from the rim so the center can be welded in. I can't imagine I'll actually be using the Giants at 10psi. Probably a lot closer to the minimum pressure.
 

Dang it, I can't edit my post. I meant to say I won't be using the tire at that pressure, not weight.
 

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