[Sephx1]

Just got these used slicks mounted up on new Apex SM-10 wheels 18x11 and 18x12 for the ZLE. 305/660/18 front and 325/680/18 rear. Way cheaper than GY3R’s. Looking forward to seeing how they do once I get some heat in them.

[Baddawg53]

They look great! I've been eyeing those tires from a distance, not quite ready for slicks though. I have the same wheels except square 18x11.

[iwk2much]

You will love them, within a lap, you can lean on them unlike the 3R's. They have more sidewall flex so you car will have more lean but try to get past that feeling, the tires will stick!

[Stephen12ZL1]

the sidewalls are more compliant as stated and grip is excellent similar to a 3R. Once you get used to the slightly "squishier" feeling in transitions, you will like them. A 3R definitely feels stiffer and I would say grip is pretty equal and it depends upon how many heat cycles the tires have as to the grip available. They do come up to temp quicker as stated also.

[kropscamaro16]

yea no slicks or 18s for me yet lol cant drive to and from the track on them and no truck/trailer yet !

[sr71bb]

Originally Posted by Sephx1

Just got these used slicks mounted up on new Apex SM-10 wheels 18x11 and 18x12 for the ZLE. 305/660/18 front and 325/680/18 rear. Way cheaper than GY3R’s. Looking forward to seeing how they do once I get some heat in them.

Run them at 24-26PSI cold pressure. Normally you would want to run them MOUNTED with the LETTERS IN because typically they made laps with the LETTERS mounted to the OUTSIDE as is the sponsors requirement usually

Dont let them get above 32PSI Hot pressure. Typically there will be a 6PSI difference between cold pressure readings and hot pressure readings. In SUPER HOT summer conditions I have seen as much as 10 PSI difference. These will be a little quicker than GYSC3R tires but will last considerably longer. They LIKE alot of NEGATIVE camber. I run -3.7 front and -3.0 rear.

They will heat cycle out BEFORE you will see those wear indicators disappear so ALWAYS check them after a track day. I usually get 3-4 full track days out of a set.

[max pl]

Originally Posted by sr71bb

Run them at 24-26PSI cold pressure. Normally you would want to run them MOUNTED with the LETTERS IN because typically they made laps with the LETTERS mounted to the OUTSIDE as is the sponsors requirement usually

Dont let them get above 32PSI Hot pressure. Typically there will be a 6PSI difference between cold pressure readings and hot pressure readings. In SUPER HOT summer conditions I have seen as much as 10 PSI difference. These will be a little quicker than GYSC3R tires but will last considerably longer. They LIKE alot of NEGATIVE camber. I run -3.7 front and -3.0 rear.

They will heat cycle out BEFORE you will see those wear indicators disappear so ALWAYS check them after a track day. I usually get 3-4 full track days out of a set.

you get 3-4 days out of scrubs or new?

[sr71bb]

Originally Posted by max pl

you get 3-4 days out of scrubs or new?

Out of SCRUBS. I have never run NEW. I do run a SQUARE set up however which does help some.

[Sephx1]

Originally Posted by sr71bb

Run them at 24-26PSI cold pressure. Normally you would want to run them MOUNTED with the LETTERS IN because typically they made laps with the LETTERS mounted to the OUTSIDE as is the sponsors requirement usually

Dont let them get above 32PSI Hot pressure. Typically there will be a 6PSI difference between cold pressure readings and hot pressure readings. In SUPER HOT summer conditions I have seen as much as 10 PSI difference. These will be a little quicker than GYSC3R tires but will last considerably longer. They LIKE alot of NEGATIVE camber. I run -3.7 front and -3.0 rear.

They will heat cycle out BEFORE you will see those wear indicators disappear so ALWAYS check them after a track day. I usually get 3-4 full track days out of a set.

Great info, thanks!

[Christian1LE]

Nice! I need to order some and get them mounted(already have wheels camber plates) . Want to do nasa tt this year hopefully starting at vir.

[sr71bb]

Originally Posted by Sephx1

Great info, thanks!

No problem. Also I run 305 660 18 square. I tried 305 680 18s on the rear but my car is quicker with more neutral handling with the 660 height tire on all four corners

[max pl]

Originally Posted by sr71bb

Out of SCRUBS. I have never run NEW. I do run a SQUARE set up however which does help some.

I only get 3 to 4 days out of new R7s so thats positive to hear considering new R7s are $1k more than scrub DHBs. I also run square.

I hear that scrub DHBs are as fast as new R7s.

[seanblurr]

It's very hit or miss with the scrubs, I used to run them a bit. I had one set only last me 2 sessions, another a full day, and one slightly longer. The biggest downside with scrubs.

[Pollock]

Originally Posted by sr71bb

Run them at 24-26PSI cold pressure. Normally you would want to run them MOUNTED with the LETTERS IN because typically they made laps with the LETTERS mounted to the OUTSIDE as is the sponsors requirement usually

Dont let them get above 32PSI Hot pressure. Typically there will be a 6PSI difference between cold pressure readings and hot pressure readings. In SUPER HOT summer conditions I have seen as much as 10 PSI difference. These will be a little quicker than GYSC3R tires but will last considerably longer. They LIKE alot of NEGATIVE camber. I run -3.7 front and -3.0 rear.

They will heat cycle out BEFORE you will see those wear indicators disappear so ALWAYS check them after a track day. I usually get 3-4 full track days out of a set.

That's a lot of camber. I run neg 2.8 up front and feel it's perfect. Neg 2.0 in the rear but feel I need more. I have oem sized 18s. Not square

I also start at 23 psi cold.