No more big tire posts till I get my shit. Grrrrrr. Walker evans wheels are the slowest to get.

from the dunes

 

All this big tire talk got me motivated for a new dirt set up. I got some 31" Ultracross and DWT Star Fighter wheels for my XP

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Best tire out

 

Got maxxis liberty 32x10x14's today. 37.6lbs each. Mounted them to my 14x6 walker beadlock 17.2lbs each. Just for the numbers guys 54.8lbs per corner. Braking is affected but seems to drive very nice drifting thru the neighborhood. Lol.

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Looks great
Let us know how you feel after you take them out

 

Finally got mine.

15x6 walker evans
33x10.50x15 Yokohama super diggers

 

As much as I like the walkers, the yokos should have a centerline solid wheel.
And it should be 1991 again and I could just bitch slap the lugnuts by hand off that 16 car instead of using the electric impact.

 

32" Chicanes on 15" Racelines

 

View attachment 110001 32" Chicanes on 15" Racelines

nice graphic kit

 

33's

 

This is some good info. I also like the way the big tire and different wheels just change the look so much.

 

I have the 31" ITP Ultracross R-Spec. Have 150 miles on them so far and I am liking them. High speed desert, trails and some rocky trails and all is good.


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Ultra cross are great for high speed

 

I love my liberties. Have ran them through the desert, lava rock, and in moab. They perform great and zero problems so far.


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Going to take a leap of faith and try out the new GMZ Ivan “IRONMAN” Stewart edition tire. They just released it in a 32"x15" version. Anyone know anything about these??

 

Going to take a leap of faith and try out the new GMZ Ivan “IRONMAN” Stewart edition tire. They just released it in a 32"x15" version. Anyone know anything about these??

View attachment 111161 View attachment 111169 View attachment 111177

Couple utv cars were using them in the mint.

 

32" STI Outback Max on the XDS. Needed 1.5" spacers on the back

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Did you have to change out your clutch and any belt issues?


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32" Gladiator tire on 15" Rage Wheels

We are running some 32" Gladiator Tires from Discount Tire, With there 15" Rage Wheel that has the rash ring on the outside. This is going to be our Rock Crawling and show set up for the season. I am going to probably try some other tires on the stock wheels but have not decided yet. This tire works quite well, we have a set of 30" versions on a Ranger and they work very good in rocks and even sand conditions. Its a nice round true 32" tall tire and fits the car very nicely. Much meaner stance and look than stock of course without being too heavy. Only other things on the machine now is a spring package we call our Dessert/ Dune package and some billet sway bar linkage rods. Excited for Rally on the rocks to put this machine through its paces. It has been amazing doing all the spring testing to this point and I am excited to built a bunch more parts for this machine. Oh I am also installing a Halo Locker in the front end today. Super stoked on that part, quality guys and good looking parts for sure.

 

We are running some 32" Gladiator Tires from Discount Tire, With there 15" Rage Wheel that has the rash ring on the outside. This is going to be our Rock Crawling and show set up for the season. I am going to probably try some other tires on the stock wheels but have not decided yet. This tire works quite well, we have a set of 30" versions on a Ranger and they work very good in rocks and even sand conditions. Its a nice round true 32" tall tire and fits the car very nicely. Much meaner stance and look than stock of course without being too heavy. Only other things on the machine now is a spring package we call our Dessert/ Dune package and some billet sway bar linkage rods. Excited for Rally on the rocks to put this machine through its paces. It has been amazing doing all the spring testing to this point and I am excited to built a bunch more parts for this machine. Oh I am also installing a Halo Locker in the front end today. Super stoked on that part, quality guys and good looking parts for sure.

So I have been talking to a local Discount Tire To get your set up and they are totally confused. They claim they only have a 4 + 3 in that rim and they dont have the correct bolt patern. Do you know the offset on your wheels?

Thanks

 

What are the pros and cons of a 5+2 vs the 4+3 on a x3

 

5+2 will be closer to stock width (likely 1-2" wider overall). 4+3 would put you out another 2" wider and introduce more scrub. Shock therapy has a good article on wheel offsets and how they affect performance.


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Seems most with RSs go for the 5+2 to keep it as close to stock width as possible. No real need to go much wider than 72". Seems as though the RS may also be more affected by bump steer with higher offset wheels

On the 64" wide models however the 4+3 has been a good choice for me. Added ~4" of overall width and haven't noticed any increase in steering feedback over stock.

 

Seems as though the RS may also be more affected by bump steer with higher offset wheels.

FYI: Scrub radius is affected by wheel offset, not bump steer.

Sure it is... Scrub radius directly affects bump steer

 

 

 

Along with bumpsteer on the RS with more than 5+2 offsets. They also have a weak lower aarm and wider offsets may contribute to bending them prematurely.

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I have 5+2 and 4+3's and don't notice a difference in handling and/or steering between the two. I've had no issues with parts failing as of yet. The bigger difference I notice is in the tire size, tire weight and tread and how that affects handling and steering (not to mention your suspension settings).

30" MRTs on 5+2

31" ITPs on 4+3 View attachment DSC_0008.jpg

I'm about to put 32's on my 4+3 so that will be a good comparison as well. I will say the "quickest" setup is the 30's so long as I don't have larger rocks to roll over. The type of track or trail has alot to do with these setups as well..

 

How so?

 

I think some of you are misinterpreting the definition of bump steer. Bump steer is when the geometry is such that when the suspension cycles up and down it changes the toe angle. It isn't about getting feedback through the steering when you hit a bump. Hell, bump steer is measured in the shop with the wheels not even on the car.

 

If the suspension has any kind of bumpsteer in it to start with, wouldn't a wider offset wheel amplify the bumpsteer? X3 are great but I'm not sure there is no bump steer in it

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Zambo is correct. You other guys are misinformed.

 

I'm just ignorant, not misinformed since I was never really informed.


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No, they are two unrelated things. You guys are confusing bump steer, which is a geometry problem, with steering feedback, which is an offset problem.
Of course you wouldn't want to have both problems at the same time.

From watching videos, I would say there is very little bump steer built into the geometry.

 

Semantics I guess. I've always interpreted "bump steer" as an adjective to describe unwanted steering feedback.