End of the square vs staggered
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I am sure they do in TT5 because I think points are based on the widest tire, so you might as well be square. A better place to look might be Gridlife or similar events, like Robert Thorns S2k. I am honestly not sure what he runs.
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From: Milwaukee, WI
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. After 15 years of flogging it though, i learned over the years in a systematic way where the car can be improved to keep up with my quest for a faster my enjoyable performing car. But Just for shits and giggles here is a vid of me chasing down every car in my advanced run group on some old Kuhmo xs 255/295 staggered full weight NA s2k at the 2.5 mile Ridge in WA State, fighting the urge to oversteer the whole time, and as the tires start getting little greaser later in the session you can get a few good shows especially down at the end of that long strait going into that decreasing radius turn. This particular day was my second time to this track, put down a 2:01.2 which happened to be the second quickest lap time on this track for NA street tire s2k, up until the RE71's came out. Cheater tires 
Last edited by s2000Junky; Oct 12, 2018 at 09:36 AM.
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Correlation is not causation. There are many facets to tuning a cars handling feel and behavior up front with camber, caster, toe amount and damping settings, all effecting the dynamic turn in response. Adding more front tire will make the steering feel heavier on the same alignment settings, while adding more holding before you get into slip. Moving from a skinnier front tire to a wider one is always going to give you some road holding benefit, never mind what you have out back. Does it matter if its square or not? On a big higher speed track, some would find a sharper turn in a negative, making the car more nervous feeling and too hard to ride the edge without taking it over. Others find its satisfying and works best on small tight courses like Auto X where speed/inertial/aero is not at play, but rather getting the front end to just get down and dig in with as much mechanical grip as you can get and just deal with what ever the rear end does because its still manageable at said speeds.
the 935 is an avsolute nightmare to drive. It has stupid skinny fronts that always underseer and you depend on a vaguely timed boost of the turbo to steer the car. He said the engineers would carefully measure the outer diameter of the rears because the car would pull so hard in the straight aways due to the irregular tires diameter mismatch and the rear solid axle. So this was a nightmarish handling car that was fastest when the driver learned its stupid short comings. Moral of the story: The fastest set up may not feel the best.
962- He only said the engineers always wanted feedback/data on the adjustable boost knob but none of the drivers were suicidal enough to play with it.
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Probably nothing to fully satisfy your quest. I'm not that good at documenting my ventures, and I also don't have trial times running reverse staggered set ups to test if they are going to be good, just like not testing a square set up on my car. After 15 years of flogging it though, i learned over the years in a systematic way where the car can be improved to keep up with my quest for a faster my enjoyable performing car. But Just for shits and giggles here is a vid of me chasing down every car in my advanced run group on some old Kuhmo xs 255/295 staggered full weight NA s2k at the 2.5 mile Ridge in WA State, fighting the urge to oversteer the whole time, and as the tires start getting little greaser later in the session you can get a few good shows especially down at the end of that long strait going into that decreasing radius turn. This particular day was my second time to this track, put down a 2:01.2 which happened to be the second quickest lap time set for NA street tire s2k, up until the RE71's came out. Cheater tires
https://www.youtube.com/watch?v=l60GaYtBBsQ&t=180s
. After 15 years of flogging it though, i learned over the years in a systematic way where the car can be improved to keep up with my quest for a faster my enjoyable performing car. But Just for shits and giggles here is a vid of me chasing down every car in my advanced run group on some old Kuhmo xs 255/295 staggered full weight NA s2k at the 2.5 mile Ridge in WA State, fighting the urge to oversteer the whole time, and as the tires start getting little greaser later in the session you can get a few good shows especially down at the end of that long strait going into that decreasing radius turn. This particular day was my second time to this track, put down a 2:01.2 which happened to be the second quickest lap time set for NA street tire s2k, up until the RE71's came out. Cheater tires https://www.youtube.com/watch?v=l60GaYtBBsQ&t=180s
At the end of the day it is what works for you, which again was my original intent, I found what works for me.
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Big Bad Wolf isn't really a car to draw data from, he makes nearly 650whp and the thing basically overfilled with wheel and tire at the expense of steering angle but still says there is a of lack of front grip. Definitely a cool car and great driver though.
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From: Pawtucket, RI
I am not sure where you got that I didn’t have lap times,
To me that says you don't have lap times to back it up.
But nevermind that, I don't for one second think that 225/255 should be faster than 255 square all else equal. I wouldn't necessarily bet against 225/255 RE71R vs. 255-square RS4, though, that might be pretty close...
All I can give is my experience and based on running many different setups on this car it was conclusive enough that I really don’t care what anyone else thinks, I have found my setup. Could I cut out the rear fenders and toss on wider tires and go faster, possibly, but then I could do the same in the front and go wider square.
Many different setups, but until recently always 225/255? 225/255 vs. 255-square is not much of a study of the effects of tire stagger IMO...
For 95% the debate of square vs staggered is always going to mean 225/255 vs 255/255.
Well there's no debate there as far as I'm concerned... Again, my argument is against the idea that "square" is necessarily perfectly optimal. For a given overall tire width if square is indeed perfectly optimal, then slightly staggered *either way* would be close.
Anyway, if your point is that 255 square is better than 225/255, OK. But that is not The End of square vs. staggered...