PSS or PS4S tires - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

evonschu · 05-08-2020, 05:01 PM

Need to replace the tires on my 2013 ZL1. I have Michelin 315/35/R20 and 295/35/R20 PSS on there now. Weighing in on if I should get these again or opt for the newer PS4S tires. Difference being that it'd be 305/35/R20 and 285/35/R20's for the PS4S. Not sure if losing the extra 10mm in width of the rear tires but having a better/newer tire would be beneficial over the PSS's I got now in 315's. Any input greatly appreciated. Thanks.

RobZL1 · 05-09-2020, 09:54 AM

I've never had the PSS, but I feel like compound technology is still advancing, so I went with the 4S. My mod list is very similar to yours and I think it's a great tire. Hooks all the way through 2nd gear when warm enough, and very good in aggressive street cornering.

DannyZ · 05-09-2020, 11:49 AM

I just had a set of the 4S's spooned on last week. I haven't really wailed on them yet, as they are still new but I noticed they are indeed quieter and not as harsh riding as the stock Goodrock's they replaced.

And they must be pretty popular; my guy had to go to three places to get four tires.

CamaroDreams76 · 05-09-2020, 05:47 PM

I wouldn't get the MPSS. Not anything to do with performance but that tire hasnt been around for like 3 or 4 years so if you run across some, they are going to be old and not likely to last as long as desired....... OR you could run into the problem my other half had and have the MPSS dry rot within a year because the tire was already 3 years old

Just get the 4S. I've had both and the differences you cant even tell unless you're at the tires limit.

Coop[580 · 05-09-2020, 06:31 PM

I’m looking into the PS4s for my front tires. Probably a 295/30/20. I have R888Rs for rears. The stock GY are garbage

DrkPhx · 05-10-2020, 12:04 PM

Get the PS4's since they're replacing the older PSS tire. I have them and love them. Quiet, smooth and still have great traction straight line and in the twisties.

evonschu · 05-11-2020, 11:50 AM

This is all good advice, but no one has addressed if the size change from MPSS in 315s to MPS4S's in 305s is going to create a loss of grip, however slight. Anyone go specifically from 315's in MPSS to 305's in MPS4S's that can share their experiences?

shibbs · 05-11-2020, 01:07 PM

I just switched from MPSS to the 4S on my car.
You will not lose noticeable grip going down 10mm on the rears. You will gain LOTS of traction on cooler days. I noticed the Super Sports liked to be 80 degree days or better, but the 4Ss are just fine at 50+.

Switch to the 4Ss and don't look back.

owhite3003 · 05-11-2020, 01:18 PM

Let me know bud, I am about to go down that pat as well.

05-08-2020, 05:01 PM	#1
evonschu Drives: Camaro ZL1 Join Date: Oct 2012 Location: Hillsboro, OR. Posts: 166 View My Garage	PSS or PS4S tires Need to replace the tires on my 2013 ZL1. I have Michelin 315/35/R20 and 295/35/R20 PSS on there now. Weighing in on if I should get these again or opt for the newer PS4S tires. Difference being that it'd be 305/35/R20 and 285/35/R20's for the PS4S. Not sure if losing the extra 10mm in width of the rear tires but having a better/newer tire would be beneficial over the PSS's I got now in 315's. Any input greatly appreciated. Thanks. __________________ 2013 Camaro ZL1 M6: Rotofab CAI, JDP ZL-R Rough Idle Cam, Upgraded Valve Springs and Pushrods, Ron Davis Heat Exchanger, Alky Methanol Injection, Rx Catch Can, 87mm VMAX Ported TB, Summit Performance Spark Plug Wires, 10" Lower Pulley, Kooks 1 7/8" Headers with Magnaflow Cats, ID850 Injectors, Johnson 2110R lifters, EBC Slotted Rotors+Hawk Pads, Rotofab SC Coolant Reservoir, 160* Thermostat, Custom Mild to Wild switch, Tune, 1st to 4th bypass. 685 RWHP / 640 RWTQ.

05-09-2020, 09:54 AM	#2
RobZL1 fo'shizZL1 Drives: 2017 ZL1 Join Date: Aug 2017 Location: ATL Posts: 1,281	I've never had the PSS, but I feel like compound technology is still advancing, so I went with the 4S. My mod list is very similar to yours and I think it's a great tire. Hooks all the way through 2nd gear when warm enough, and very good in aggressive street cornering. __________________ 2017 ZL1 M6 Black \| Maggie 2650 // 103TB // Big Gulp Past Rides- 2014 ZL1 M6 Red Hot \| Tons of mods 2004 CTS-V M6 Silver \| Many mods 1995 Corvette M6 Torch Red \| A few more mods 1992 Camaro M5 White \| A few mods

05-09-2020, 05:47 PM	#4
CamaroDreams76 Tri-County Camaro SWFL Drives: 2013 IOM 2SS/RS/1LE Join Date: Apr 2013 Location: South West FL Posts: 3,078 View My Garage	I wouldn't get the MPSS. Not anything to do with performance but that tire hasnt been around for like 3 or 4 years so if you run across some, they are going to be old and not likely to last as long as desired....... OR you could run into the problem my other half had and have the MPSS dry rot within a year because the tire was already 3 years old Just get the 4S. I've had both and the differences you cant even tell unless you're at the tires limit. __________________ Just bolt ons........ https://www.camaro5.com/forums/showthread.php?t=343023

05-09-2020, 06:31 PM	#5
Coop[580 Drives: 2012 ZL1 Ashen Grey Join Date: Apr 2017 Location: NW Indiana Posts: 378	I’m looking into the PS4s for my front tires. Probably a 295/30/20. I have R888Rs for rears. The stock GY are garbage __________________ 2012 M6 Kooks 1 7/8, off road pipes , full corsa exhaust ID1300s/ 22% lower / 2.5 upper, JLT CAI, DSX flex fuel, DSX AUX fuel pump. S19 cam Tuned and built by Speed Inc 635/632-93 octane 725/738-E85

05-11-2020, 11:50 AM	#7
evonschu Drives: Camaro ZL1 Join Date: Oct 2012 Location: Hillsboro, OR. Posts: 166 View My Garage	This is all good advice, but no one has addressed if the size change from MPSS in 315s to MPS4S's in 305s is going to create a loss of grip, however slight. Anyone go specifically from 315's in MPSS to 305's in MPS4S's that can share their experiences? __________________ 2013 Camaro ZL1 M6: Rotofab CAI, JDP ZL-R Rough Idle Cam, Upgraded Valve Springs and Pushrods, Ron Davis Heat Exchanger, Alky Methanol Injection, Rx Catch Can, 87mm VMAX Ported TB, Summit Performance Spark Plug Wires, 10" Lower Pulley, Kooks 1 7/8" Headers with Magnaflow Cats, ID850 Injectors, Johnson 2110R lifters, EBC Slotted Rotors+Hawk Pads, Rotofab SC Coolant Reservoir, 160* Thermostat, Custom Mild to Wild switch, Tune, 1st to 4th bypass. 685 RWHP / 640 RWTQ.

05-09-2020, 11:49 AM	#3
DannyZ Drives: 2014 ZL1 Join Date: Oct 2019 Location: Cedar, MN Posts: 10	I just had a set of the 4S's spooned on last week. I haven't really wailed on them yet, as they are still new but I noticed they are indeed quieter and not as harsh riding as the stock Goodrock's they replaced. And they must be pretty popular; my guy had to go to three places to get four tires.

05-10-2020, 12:04 PM	#6
DrkPhx Drives: 2013 Triple Black ZL1 / 2006 TB SS Join Date: Feb 2011 Location: MN Posts: 2,250	Get the PS4's since they're replacing the older PSS tire. I have them and love them. Quiet, smooth and still have great traction straight line and in the twisties.

05-11-2020, 01:18 PM	#9
owhite3003 Z-BEAST Drives: 2013 JDP ZL-850 Track Spec ZL1, Join Date: Mar 2013 Location: Oregon City, OR Posts: 1,470	Let me know bud, I am about to go down that pat as well.