nonetooclose

Hey guys! I think I have necked into the PSC 2s since they are such nice tires. The 305s have a good used market that I can tap into to reduce costs but I see that the 305 has a recommend tire width range on Tirerack of 10.5"-11.5". It seems that this might cause higher strain on the tire sidewall when taking corners at high speed on the track.

Does this present a track risk and I should go down to a 295?

Plus the Michelin PSCs seem to run a bit wider than some of the other brands.

mallett435

I just mounted 295/30/20 Cup 2s on stock rear z51 wheels. 255/35/19s on stock z51 front rims. Fit looks fine, but I would not feel comfortable going any larger on stock rims. I'm at stock ride height and hoping no rubbing issues.

nonetooclose

This is the other option I am looking at. How many miles do you have on them? Any track time?

mallett435

Zero miles so far. I'm headed to VIR mid March and can report back.

2019CMGZ51

I'm thinking of buying same 295/30/20 and 255/35/19 PSC2s for my Z51 and running VIR. How did these do there?

JMII

Not exactly the same but...

I run 265/35-18 and 305/30-19 on 8.5" and 10" wheels (base size) at the track without issue using Bridgestone S007A tires.

FKING1

Mounted 305/30 PS2's on stock 20 rims.
Slight rub drivers side only that I cleared by grinding clearance in plastic liner.
Have run & raced this combo 2 years with no problems.

Freebirds

Hello
305/30ZR20 are OK on C7 Z51 stock rims

305/30/20 stock C7 Z51 rims

305/30/20

Freebirds

Hello
305/30zr20 on C7 Z51 stock rims are OK, but it is max.




305/30/20 stock C7 Z51 rims