Checkmate

He is comparing it to a 'GM' product that is an Alpha chassis car that comes with a Multi link rear suspension. Last I checked, the GT4's rear end leaves a lot to be desired and perhaps a handicap which is why the big brother the GT3 has a multi link suspension...similar to the 6th gen Camaro.

Don't forget that it was the Camaro ZL1/1LE engineering team that worked with GY for years to get to the current GY3 and GYSCR3 compounds that are universally acclaimed even on Porsches.

There are strengths and weaknesses with all cars. Just roll with the positives and work on the negatives.

electron mike

My opinion, I have burned two sets of SC3 on my 718 GT4, many sets on my ZL1s, and several CUP2s on various other platforms including my 981 GT4. I hate CUP2s with a passion, the SC3 is far superior in my opinion: much better wear, doesn't heat cycle out, grips until the end, doesn't fall off nearly as much with heat and throughout the session, and is also much better in the wet.

The GT4 and all other cars will naturally move around at the limit in my experience regardless of the tires as you ride that fine line of adhesion. That said, the stiffness difference and turn in response is also much better with the SC3.

My .02.

enduro

If only the SC3 or SC3R would ever be off backorder for the 19s I need.... I've been watching since Oct 2021 and have never seen fronts and backs simultaneously available anywhere.

electron mike

Definitely very hard to find. I have one set of 265/285 SC3 stockpiled but I just picked up a set of Falken 660s in 265/305 to try next after hearing they are quite a bit faster from several folks.

jwr9152

While I don't hate sc2 I prefer the sc3. Didn't notice any difference with the car moving around less, and agree with everything Electron Mike said.

TRZ06

Thanks for the feedback, I appreciate it. I am going to give them a go in stock sizes after I burn thru my current Cup 2's

TRZ06

Exactly.

It is hard for me (at this point) to know if the GT4 moves around the way it does because of the soft sidewall Michelin tires or because of the strut rear. Considering all points that control the lateral plane in the rear are solid attachment points, it baffles me why the GT4 moves around so much.

I fully understand that at the limit any car will move around a bit, but in the GT4 it is more than any other sports car I have had. You have to make quite a few mid-corner adjustments as the car moves around, AND more importantly, the amount of lateral movement it has when loaded up in a high speed corner. At the same time, I do not think I have ever had a sports car that has had a strut rear, nor have I ever ran the Cup 2's before on any platform.

Jeffwels

Hate to resurrect this thread but I’m coming up empty handed. I want SC3’s for my GT4 after falling in love with them on my Gt350 vs the cup 2’s.

the 295/30r20 is back ordered with no ETA. I have new Apex 20x11 ET50’s showing up this week from the group buy. Car sitting at -2 camber in the rear. I’m curious if anyone has fit the more attainable 305 option with similar setup without rubbing?

MaddMike

Good question. I say you do it and let us know.

dnimi123

my tire guys says summer tires will go into production in the spring.

balucipher

305s will fit but GT4s running 245 front and 305 rear tend to be a little slower because it induces some understeer as someone mentioned before.

MaddMike

By the way, I had the same issue as you did as my Apex wheels came in and I had nothing to mount on them. I like my stock Dunlop Tires, which to my understanding are the same as the SC3. Then, this deal came along (link below) for some highly rated Bridgestones which are all-season. I ordered the Bridgestones and will have those mounted on my stock wheels this Friday and I will transfer my Dunlops to the Apex wheels. That way I can continue to drive in this Southern winter and I swap out the Apex wheels in March or April. My stock tires just turned over 2k miles so they are a bit scrubbed in but have plenty of life left. Hopefully by the time they die, SC3s will be available.

https://rennlist.com/forums/718-gts-...l-seasons.html

Josh_357

The stock GT4 Dunlop RM2 are simliar/same as Supersport R, not SC3. https://www.tirerack.com/tires/goody...1-supersport-r SC3 has faster warm up than Dunlop RM2.

MaddMike

Good to know... that my understanding was incorrect.

Josh_357

it was half right :P