Picking up lots of rocks?? (MPSS) - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ashtray · 01-09-2015, 04:48 AM

I recently got new Pilot SS to replace the stock Primacy's and while the grip is surprising at times (love it!), the thing that surprises me even more is how many little rocks the tires pick up and throw in to the wheel well! Sounds like I'm driving off road at times! My other car with PSS (275 rears in that one vs 225's in the BRZ) does not seem to do this.

The tires have wide channels in them but I've never had this happen with a tire before - heck even when I had a pickup truck!

Anyone else notice their tires grabbing every loose object on the road? I might need to buy some rallyarmor mud flaps just to protect against flying rocks!

Wyattkb · 01-09-2015, 09:23 AM

Sticky tires + light sports car with little sound deadening = Noise

100% normal

It's not a BMW

malave7567 · 01-09-2015, 09:30 AM

I'm running 225/45/17 MPSS on my car, and yeah they pick up a ton of little debris pieces, but that's why I put the OEM mudguards on at least. Like Wyattkb said, there is little to no sound deadening in the wheel wells of this car, or in the entire car in general, so every little thing makes noise that you can hear.

Cockatoo · 01-09-2015, 09:35 AM

Yep, got the same tire and completely normal

reardrv · 01-10-2015, 02:43 AM

Same with my PSS's, at first. Now after about 5 autocross events and 6k miles or so they don't pick up nearly as many small pebbles/rocks. No clue as to why, I have overheated them a few times to the point were they where greasy. That could have something to do with it, but I'm really just guessing.

JB86'd · 01-10-2015, 03:59 AM

I have Dunlop zII's and even on a cold day, I hear so much shit being kicked up into the wheel wells. I drive with my backseat down ocassionally and it's really loud.

FatFree · 01-10-2015, 04:48 AM

I replaced the stock tires and the rocks got a lot more noticeable.

DaJo · 01-10-2015, 06:04 AM

Running MPSS 225/45/17 here too... It's very normal...

Dem sticky tires...

01-09-2015, 04:48 AM	#1
ashtray As Seen On The Internet Join Date: Apr 2011 Drives: 2003 WRX, 2013 BRZ, 442 Location: SoCal Posts: 852 Thanks: 23 Thanked 251 Times in 159 Posts Mentioned: 1 Post(s) Tagged: 2 Thread(s)	Picking up lots of rocks?? (MPSS) I recently got new Pilot SS to replace the stock Primacy's and while the grip is surprising at times (love it!), the thing that surprises me even more is how many little rocks the tires pick up and throw in to the wheel well! Sounds like I'm driving off road at times! My other car with PSS (275 rears in that one vs 225's in the BRZ) does not seem to do this. The tires have wide channels in them but I've never had this happen with a tire before - heck even when I had a pickup truck! Anyone else notice their tires grabbing every loose object on the road? I might need to buy some rallyarmor mud flaps just to protect against flying rocks!

01-10-2015, 03:59 AM	#6
JB86'd Senior Member Join Date: Oct 2013 Drives: JAWS Location: socal Posts: 703 Thanks: 753 Thanked 437 Times in 224 Posts Mentioned: 27 Post(s) Tagged: 1 Thread(s)	I have Dunlop zII's and even on a cold day, I hear so much shit being kicked up into the wheel wells. I drive with my backseat down ocassionally and it's really loud. __________________

01-10-2015, 06:04 AM	#8
DaJo FT86Club Vancouver Join Date: Jun 2012 Drives: BRZ Sport-Tech; Drove: MR-S, AE86 Location: Vancouver, BC Posts: 2,533 Thanks: 391 Thanked 1,180 Times in 634 Posts Mentioned: 16 Post(s) Tagged: 2 Thread(s)	Running MPSS 225/45/17 here too... It's very normal... Dem sticky tires... __________________ 1984 AE86 BT 20V 5MT 2007-2012 2000 MR-S 5MT 2010-2012 2013 BRZ Sport-Tech 6AT Since '12 (OEM+ STI tS Build) 2015 Lexus IS250 AWD F-Sport 2 2015-2018 2018 Lexus NX300 F-Sport 3 Since '18

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Pic Request: MPSS 245/35/18 on 18x9.5" wide wheel	OICU812	Wheels \| Tires \| Spacers \| Hub -- Sponsored by The Tire Rack	27	09-22-2015 11:25 AM
Continental Extreme Contact DW vs. MPSS?	Whats that smell?	Wheels \| Tires \| Spacers \| Hub -- Sponsored by The Tire Rack	26	12-24-2014 08:47 AM
Rims with MPSS--NoVa	Lavalover	Wheels and Tires	5	12-03-2014 02:31 PM
The horrors of rocks	Drewfellas	Cosmetic Modification (Interior/Exterior/Lighting)	14	10-25-2014 10:44 PM
FS/FT:Enkei Raijin/ MPSS 18's	loogs	Wheels and Tires	9	08-05-2014 11:50 AM

01-09-2015, 09:23 AM	#2
Wyattkb Senior Member Join Date: Oct 2013 Drives: 2014 Whiteout FRS Location: United States Posts: 444 Thanks: 56 Thanked 159 Times in 87 Posts Mentioned: 3 Post(s) Tagged: 1 Thread(s)	Sticky tires + light sports car with little sound deadening = Noise 100% normal It's not a BMW

01-09-2015, 09:30 AM	#3
malave7567 Senior Member Join Date: Jun 2013 Drives: (formerly) 2013 Raven FR-S Location: Houston, TX Posts: 396 Thanks: 117 Thanked 218 Times in 136 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	I'm running 225/45/17 MPSS on my car, and yeah they pick up a ton of little debris pieces, but that's why I put the OEM mudguards on at least. Like Wyattkb said, there is little to no sound deadening in the wheel wells of this car, or in the entire car in general, so every little thing makes noise that you can hear.

01-09-2015, 09:35 AM	#4
Cockatoo TALLY FT86 Join Date: Mar 2014 Drives: 2014 FR-S Monogram -- SBD Turbo -- Location: Tallahassee, FL Posts: 624 Thanks: 185 Thanked 445 Times in 242 Posts Mentioned: 12 Post(s) Tagged: 1 Thread(s)	Yep, got the same tire and completely normal

01-10-2015, 02:43 AM	#5
reardrv Senior Member Join Date: Sep 2013 Drives: 2013 Subaru BRZ Location: NH Posts: 109 Thanks: 56 Thanked 40 Times in 27 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Same with my PSS's, at first. Now after about 5 autocross events and 6k miles or so they don't pick up nearly as many small pebbles/rocks. No clue as to why, I have overheated them a few times to the point were they where greasy. That could have something to do with it, but I'm really just guessing.

01-10-2015, 04:48 AM	#7
FatFree Senior Member Join Date: Dec 2013 Drives: 2013 Asphalt FR-S Location: Seattle Posts: 202 Thanks: 127 Thanked 43 Times in 32 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	I replaced the stock tires and the rocks got a lot more noticeable.

User Name		Remember Me?
Password