Are these the ones you speak of???

https://www.tirerack.com/tires/tires...CSXL&tab=Specs

I'd still go with the Michelin Pilot Super Sport tires... Tire Rack's Review indicates the Michelin PSPs are better rated -

https://www.tirerack.com/tires/tests...y.jsp?ttid=223

I've had the Continentals, S-04, PSS and the P4S and the P4S are the best. I still get wheel hop though so I just ordered the diff bushing upgrade from Z1 since they are on sale.

I can confirm that solid diff bushings alone do NOT fix wheel hop. You will need to get poly or solid sub frame bushings.

Z1 has subframe collars that will help.

Super Sports are previous generation. Best street/summer tires are the Contis ECS and P4S

https://www.tirerack.com/tires/tires...eContact+Sport

https://www.tirerack.com/tires/tires...Pilot+Sport+4S

+1 You would be surprised how much movement is in the Genuine Nissan OEM rubber subframe bushings a specially when they start showing signs of wear.

I probably should have ordered the collars when I ordered the diff bushings. The car has a weird shift at the rear when transitioning from hard cornering in one direction to the other direction on the track.

Z1 Motorsport wheel hop suggestions useless!
 

2012 20k kilometers with typical wheel hop. Replacing diff bushings with Z1 Motorsport urethane changed nothing! Adding Z1 subframe collar inserts changed nothing! Don't waste your time and money! Many reports indicate that solid metal diff and subframe bushings don't completely eliminate this problem! Not sure what to try next.

2014 with 47k. Did the same mods as you, with the same results! The car feels slightly better, but no change in wheel hop.

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Try spl traction arms, I’ve got spl everything on rear and diff bushings, did the trick for me. Also if you have excess rear camber that contributes to it as well.


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So, my story. Got Fairlady z34 6MT just with 10k miles on the ODO, put Toyo R888R tyres, a lot of hard pulls and drag racing, then start to notice little wheel hop, then more and more. Finally rear diff bushing was shot, front diff bushings bolts loosened, replaced it with z1 uretane, will see in the summer :)

The rear wheel hop remedy requires replacing the factory bushings in each knuckle, lower control arms, upper control arms, and upgrading camber and traction arms which also possess factory rubber. This is an extremely challenging and time consuming DIY project. It required some hole edge grinding / angling with a carbide burr to better seat the replacement bushings in order to get them started with a ball joint press, as the Whiteline bushings do not have the tapered end that the factory bushings do. This was all required to remedy wheel hop despite having previously replaced diff bushings, added diff brace, and inserted sub frame collars which did not lessen the severity at all. I suspect a significant % of non professionals who attempt this project will require professional assistance, so consider carefully before getting started!

My SPL bushings went right in using a ball joint press. The sub-frame collars still let the sub-frame move about. The factory bushings do not have a taper to them. They are straight.

Spherical vs urethane.
 

By all accounts it seems the SPL (spherical bushings) are easier to install, but much pricier, noisier and create more vibration which are obstacles for those of us who rarely if ever visit the track or drift. Remedying the wheel hop as I have with the urethane for the street allows me to now drive the factory hp to it's full potential and beyond should I increase same, even on the well worn Bridgestones.:tiphat: