MSSP PSI for daily driving? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

jflogerzi · 06-14-2014, 07:50 PM

Anyone running these tires, what are you using? Also can anyone point me to a decent small portable (for use at the track and home) battery powered air compressor to add air into tires?

chenshuo · 06-14-2014, 08:00 PM

everytime i buy a new set of tires my tire guy always tell me to pump it according to the PSI on your door sticker, then keep an eye out on the tire thread wear after 1000km/miles, if too much of inner tire is worn then that means too much air, if too much edges worn then not enough air.

wparsons · 06-14-2014, 08:38 PM

Quote:

Originally Posted by chenshuo

everytime i buy a new set of tires my tire guy always tell me to pump it according to the PSI on your door sticker, then keep an eye out on the tire thread wear after 1000km/miles, if too much of inner tire is worn then that means too much air, if too much edges worn then not enough air.

Slight correction, if the center is wearing more there's too much air. The inner edge wearing is from camber. If both outer edges are wearing more than the center then there's too little air.

14BRZ · 06-14-2014, 09:29 PM

Draw a line across your tires with chalk and move the car back and forth a few times. This determines your contact patch. Add/remove air if needed

King Tut · 06-16-2014, 04:59 PM

I would stick with the OEM tire pressures. I would get a cigarette lighter adapter compressor with the longest cable you can find. I keep a cheap Slime one from Walmart in my truck.

Roadcone · 06-16-2014, 05:07 PM

start with whats on the door... drive it... add two pounds... drive it... see if its better or worse... if worse... drop back to stock... drive it... drop 2 lbs... see how that does... i'm at 40 all around on stock tires right now...

Pete156 · 06-17-2014, 01:12 AM

I run 38psi F&R on all my PSSs. Wear appears symmetrical with both sets (225s and 255s) on the 86. Keeping them there!

2point0 · 06-17-2014, 02:14 PM

I keep mine around 36psi and am almost to the wear bars but there is no more than 1/32 difference anywhere. I'm just about to hit 30k on these, so I'm pretty happy with how they wear. Rotations done around 8-10k miles in between.

This is also lowered on RCE Yellows with camber bolts in front for just about -1 degree.

King Tut · 06-17-2014, 03:22 PM

Lots of high PSI for the MPGs in this thread.

jflogerzi · 06-17-2014, 09:49 PM

Thanks for the reply guys. Gonna do some experiments.

Sent from my SGH-T999 using Tapatalk

06-14-2014, 08:00 PM	#2
chenshuo Senior Member Join Date: Nov 2012 Drives: WRB BRZ Location: Toronto Posts: 1,260 Thanks: 259 Thanked 473 Times in 245 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	everytime i buy a new set of tires my tire guy always tell me to pump it according to the PSI on your door sticker, then keep an eye out on the tire thread wear after 1000km/miles, if too much of inner tire is worn then that means too much air, if too much edges worn then not enough air. __________________

06-16-2014, 04:59 PM	#5
King Tut NASA SpecE30 Racer Join Date: May 2012 Drives: 2006 Honda S2000 Location: Gulf Breeze, FL Posts: 7,279 Thanks: 607 Thanked 5,759 Times in 3,055 Posts Mentioned: 274 Post(s) Tagged: 10 Thread(s)	I would stick with the OEM tire pressures. I would get a cigarette lighter adapter compressor with the longest cable you can find. I keep a cheap Slime one from Walmart in my truck. __________________ - King Tut Street/Track Car: 2006 Honda S2000 TT3 \|\| Race Car: 1987 BMW 325is SpecE30 \|\| Tow Vehicle: 2014 RAM 1500 EcoDiesel Sold Cars: 2012 BMW M3 \|\| 2013 Subaru BRZ \|\| 2012 Porsche Cayman R \|\| 2009 Chevrolet Z06 \|\| 2009 BMW M3 \|\| 2004 BMW M3 \|\| 2004 Nissan 350Z

06-16-2014, 05:07 PM	#6
Roadcone StreetKart Join Date: Jul 2013 Drives: 2014 Scion FR-S Monogram Location: Upstate, SC Posts: 477 Thanks: 43 Thanked 181 Times in 111 Posts Mentioned: 10 Post(s) Tagged: 1 Thread(s)	start with whats on the door... drive it... add two pounds... drive it... see if its better or worse... if worse... drop back to stock... drive it... drop 2 lbs... see how that does... i'm at 40 all around on stock tires right now... __________________ TRD\|Verus Engineering\|Titan7\|DEZOD Motorsports\|JDL Auto Design

06-17-2014, 03:22 PM	#9
King Tut NASA SpecE30 Racer Join Date: May 2012 Drives: 2006 Honda S2000 Location: Gulf Breeze, FL Posts: 7,279 Thanks: 607 Thanked 5,759 Times in 3,055 Posts Mentioned: 274 Post(s) Tagged: 10 Thread(s)	Lots of high PSI for the MPGs in this thread. __________________ - King Tut Street/Track Car: 2006 Honda S2000 TT3 \|\| Race Car: 1987 BMW 325is SpecE30 \|\| Tow Vehicle: 2014 RAM 1500 EcoDiesel Sold Cars: 2012 BMW M3 \|\| 2013 Subaru BRZ \|\| 2012 Porsche Cayman R \|\| 2009 Chevrolet Z06 \|\| 2009 BMW M3 \|\| 2004 BMW M3 \|\| 2004 Nissan 350Z

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06-14-2014, 09:29 PM	#4
14BRZ Senior Member Join Date: Oct 2013 Drives: 2014 BRZ, 08 CBR600RR Location: Corona, California Posts: 124 Thanks: 12 Thanked 73 Times in 29 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Draw a line across your tires with chalk and move the car back and forth a few times. This determines your contact patch. Add/remove air if needed

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