29.0's on LR

[tireman]

Anyone have any experience with the 29.0 on the LR ? My understanding is 1/2 to 1 inch of stagger. Im assuming from the stagger standpoint it is used on hard, slick, wheel-spin tracks. Very interested in conversing about the use of this tire: pros/cons, tracks, etc...Thanks in advance....

[MasterSbilt_Racer]

Anyone have any experience with the 29.0 on the LR ? My understanding is 1/2 to 1 inch of stagger. Im assuming from the stagger standpoint it is used on hard, slick, wheel-spin tracks. Very interested in conversing about the use of this tire: pros/cons, tracks, etc...Thanks in advance....

I have seen a new track record set on a hammer down bullring.

[Kromulous]

Its an interesting idea. I have always wanted to try 3 88's and one 90 on the RR, so i could get a lower profile side wall. i know in the Mods with the old mod tire it was worth, quite abit better feel in the car.

Although it wouldnt help with the crossmember digging in issues that some cars have.

If your aiming for that little stagger thou, you could just run 29's all around, and just stretch the RR to get that much stagger.

[billetbirdcage]

Keep in mind that tire construction comes into play here and not just stagger as many open tires the RR and LR construction is different on the carcass. I'll just say you probably need to look at which actual tire they are substituting on the LR

[MasterSbilt_Racer]

Keep in mind that tire construction comes into play here and not just stagger as many open tires the RR and LR construction is different on the carcass. I'll just say you probably need to look at which actual tire they are substituting on the LR

I know what you are saying. Pretty sure what you are implying wasn't the case on the one I looked at.

[7uptruckracer]

To that effect what kind of side wall construction are we looking at on each corner?

[billetbirdcage]

All I was pointing out is many may be changing the carcass of the tire when doing the big LR but clearly this depends on the tires your running so when your comparing what someone else is doing you need to know that stuff. If your on a economy tire, then it's very likely that all the tires have the same construction as many econo tires are that way. However if your running "open" tires then this will likely not be the case but could be.

Even on the econo tires, you may be changing the tire's spring rate thus you may still be getting a change other then just stagger. Changing the spring rate or carcass, can totally upset the balance on a car. Sometimes just changing a RR tire to another carcass can completely take a nuetral car and turn it tight or loose as hell on entry. It' all boils down to your knowledge, experience and how hard your willing to work at some of this stuff. If your not someone else is. There are so many tires and tire combo's out there it's staggering <- see what I did there, lol.

[Mr.Kennedy777]

A good question to ask is what you’re doing with the surface of the tire across the track when you’re running such low stagger. Let’s say we go from a paper clip style track to a larger radius turn track, both 3/8 oval. With a 91.5” tire on the outside of the paper clip you would need roughly 3.5” for true stagger matching of the wheel speeds in a corner. If you go to the outside groove on the wider radius track, you’re looking at a 1/2” change in stagger max. Dropping a lot lower would actually cause one tire to be losing a lot of traction through the turn with a rear end having both LR and RR axles connected the same to the rear end. Now I could see why one would do this, on a paper clip, especially if you’re utilizing a lot of rear steer, to avoid the car walking towards the flag stand on exit, I’m thinking the lower stagger would actually help the rear end move in such a way that it would counter-act that effect. I just don’t know which tire would spin more the left rear or right rear, I’m assuming whichever tire had more traction would stay connected better while the other tire would? I’m not 100% clear but that might be the reason it’s being done? If you could move the LR further ahead dynamically you’re going to gain loading, but maybe it makes the car too loose in and walk up the track on exit so the big stagger drop is being used to kind of trade off some gains in one spot for some losses at another? And maybe the trade off is actually more beneficial on certain tracks and/or conditions?

[MasterSbilt_Racer]

Tires either fight each other in the corner or on the straight. Pick your poison.

[MLR19]

Seems like people are running more LR drop, possibly to get the LR Deck/spoiler higher in a dynamic state. Could the bigger LR be used to reduce stagger to compensate for the added roll steer?

[Krooser]

A larger diameter tire will roll across the rough spots better...

[Mr.Kennedy777]

Tires either fight each other in the corner or on the straight. Pick your poison.

Where do you gain the most going faster??

[Matt49]

We notice much more even tire wear across the surface and less RR heat entirely when running less stagger. With the rear steer in these cars, one could easily argue that we don't need any rear stagger at all. Until you get into what camber thrust advantages may contribute to side bite, I would tend to agree.

[MasterSbilt_Racer]

Where do you gain the most going faster??

Not the same every track, every time. I wouldn't think.

[Mr.Kennedy777]

i think that’s a great answer. The best answer I guess would be “everywhere” lol. Maybe they will invent a tire that could change shape like a drag tire. Lol roll out and shrink on the left rear in a turn and then stand up hard when you applied the throttle. 😂