29.0's on LR

[Mr.Kennedy777]

Or just allow a guy to run a limited slip and then you wouldn’t really even need stagger.

[7uptruckracer]

The limited slip doesn't work on dirt very inconsistent its been tried off and on. If you trail brake you still have throttle applied and it won't unlock then you turn in on throttle and then say lift and all the sudden it unlocks. Or you have a hammer down track that slicks off and all the sudden its not locking and unlocking like it did earlier

[fastford]

we ran a DPI black gold unit with no stagger back in the late 90s when the 4 bar and rear steer was just coming in to play , won a lot of races on this set up , but we were on a big wide track , when we went to a smaller , tighter turn type track , it would not turn , now , Im wandering with all the dynamic roll steer these cars have today , it might work very good , I still have that unit and have been considering for a while now trying it again......

[CCHIEF]

Ran a Gleason in early 2000's and won quite a few races with it going away....with 5 " of step. BIG wide corner track.

[Mr.Kennedy777]

We are talking about a limited slip not a locker right? Can’t you adjust a limited slip to resist locking more and offer more variable speed between the tires? Because a limited slip never actually “locks” as far as I have known.

[Mr.Kennedy777]

I didn’t think if it was set up properly a limited slip would give you such inconsistency, might not give you the full locking effect a locker would, but do you ever actually want both wheels fully locked anyways? Maybe on a large track?

[7uptruckracer]

How often are late models fully off the gas I guess it the real question?

[7uptruckracer]

It all depends on what springs are inside it too. There are many different options and it can make a big difference. We run the lighter springs on asphalt now in the lockers so it unlocks quicker and softer so it frees the car up on entry and the softer engagement and disengagement is nice, If you go and run long tracks you can go to a stiffer spring where you don't need the turn in you would on a bullring. Its just not as straight forward as a spool and can be inconsistent ive run it with a detroit never tried a Limited Slip or Tru Trac

[fastford]

the black gold unit we ran was not a limited slip or locker type unit , it had something like gleeson gears in it that could transfer torque from on side to the other , if one tire slipped , it would apply more torque to the other , it did not like a lot of stagger , and did not like tight turns , but like i said earlier , we didnt have the dynamic roll steer that we do now , so I,m rethinking it again....

[7uptruckracer]

I think they use to refer to that around here anyways as a left side locker. I know some guys who ran it at VMS (Virginia Motor Speedway) which is a big somewhat flat dirt half mile that come feature time can get pretty black, they ran it in sportsman cars and it did well, but back in those days it was lift early drive straight and roll through the center. I just don't see it working for a car you don't get off the gas much very different from a spool but hey we can all learn something from a test. If you already have one then really you'll only have time invested!

[Mr.Kennedy777]

Fastford im pretty sure that’s the same as a limited slip, with helical gears, that’s how it prevents slip, is if the tire spins he torque is sent through the tire that’s “losing traction” and is allowed to spin to prevent tire slip. I’m pretty sure you would need to compare the ranges of the tires on the gears, if you went to a short track maybe you need like an inch or 3/4 of an inch to help assist the tire speeds on a tight turn radius, but enough it won’t hurt you in the straight?

[7uptruckracer]

On dirt around 10% slip is average so how do you account for that?

[fastford]

Mr K thats not how it worked , it took torque from the spinning tire and sent it to the other tire with the most traction , I never took it apart but you can see some spiral type gears , which i call gleeson and may be wrong , inside that could sence wheel spin , at least thats how it was pitched to me and thats how it felt on the track . 7UP , if your talking about the sprag set up that is in the left side drive plate , it was not any thing like that.

[Kromulous]

https://www.google.com/search?q=gleason+torsen+differential+animation&rlz=1C1NHXL_enUS684US684&oq=Trsion+Gleason+Diff&aqs=chrome.3.69i57j0l4.15423j0j8&sourceid=chrome&ie=UTF-8

There very interesting, always wanted to tinker with one.

[7uptruckracer]

I'm not sure, I am only familiar with Detroits they don't allowed True Tracs or limited slips in the asphalt division I run in. I know some offer Left Side Lockup, the track that I am speaking of made a rule against it, for whatever that means, I've tried a Detroit in dirt and its what we run in asphalt and we can change the spring stiffness (on both sides) to do different things. I just don't see it working on dirt where you trail brake and are never just rolling the corner like we do on asphalt, When I tried it on dirt i didn't like it thats as far as I can go.