Spontaneous loss of fender liner at autocross - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Jack Black · 07-14-2019, 08:24 PM

My FR-S spit out the passenger front fender liner during an autocross run. Anybody else have this happen? It was pretty mangled by the time I got it back, but no obvious signs of previous damage, and nothing obviously bent or broken in the fender well.

My best guess is that it was a pretty brake-heavy course and this was my 3rd run, so it had gotten soft enough to sag or let go somewhere. It felt pretty hot/soft when I picked it up at the end of the run group, about 30 minutes later.

Rigel · 07-14-2019, 09:59 PM

I lost mine on the way home from an autox. Check to see if the tabs that mount it to the bumper are broken.

kinghurl · 07-14-2019, 10:12 PM

Usually not spontaneous. Cone contact with bumper or running over one usually rips the front mounts out, the wind does the rest. Ahhh, I remember my first like it was 5 years ago....so many cones, so many many liners! Have a new one sitting in the garge in the box right now.

Sent from my SM-G930V using Tapatalk

Jack Black · 07-14-2019, 10:21 PM

I've plowed quite a few cones in my day, but now that you mention it, there were cone calls on my previous two runs. Maybe I've just been lucky so far.

ka-t_240 · 07-14-2019, 11:51 PM

Seems its common, especially with wider/sticky tires. I have rubbed mine, and lost one in bumpy lots.

Mr.ac · 07-15-2019, 01:43 AM

It happens. You have to remember that the liners are only held in place by plastic fasteners
Over time even road debris can take out the fasteners.

And yes I have lost two liners during autox and at a track day. I put the linger in trunk and just ordered the fasteners from the dealership.

JD001 · 07-15-2019, 01:45 AM

Are we talking about losing bits of the car after a crash?

JD001 · 07-15-2019, 01:47 AM

Quote:

Originally Posted by Mr.ac

It happens. You have to remember that the liners are only held in place by plastic fasteners
Over time even road debris can take out the fasteners.

And yes I have lost two liners during autox and at a track day. I put the linger in trunk and just ordered the fasteners from the dealership.

Is a 'linger' the ghouls that hang about corners waiting for the next crash?

steverife · 07-15-2019, 07:19 AM

Just wait until you spin and broadside a pointer cone at the top of 2nd.

Jack Black · 07-15-2019, 07:58 AM

Quote:

Originally Posted by JD001

Are we talking about losing bits of the car after a crash?

No, I was in the middle of a run, not even near a cone, and there was a loud noise and a little bump and when I looked in my mirror there was a large piece of plastic behind me.

Quote:

Originally Posted by steverife

Just wait until you spin and broadside a pointer cone at the top of 2nd.

I center-punched a cone and knocked the grill out shortly after I got the car. Fortunately no broad-sides so far.

mb_ · 07-15-2019, 01:00 PM

I lost mine at a track day but that was after running into an apex cone. It didn't come off until about 2 laps later. I think I hit it at the perfect spot that the fender liner didn't wanna be attached to the car anymore.

MaverickMonk · 07-15-2019, 01:42 PM

I haven't had to do it on my twin yet, but my impreza had similar issues, and I discovered that using zipties through 2 adjacent clip holes is a lot sturdier than the push clips.

That said, I would only do it if clip loss and flapping around is what lead to it swallowing its own tongue. If you're ripping them off from rubbing/impact, then the fender liner is coming off anyway, and you want it to be attached with breakable clips as opposed to zipties, so you don't rip through mounting tabs or destroy the fender liner.

Bitters · 07-15-2019, 02:05 PM

I broadsided like Rife said... huge dent in the bottom/side skirt section of the fender, needed bodywork to fix.

SmoothIsSlow · 07-15-2019, 05:18 PM

I have destroyed two sidemarker assemblies so far. Luckily they are easy to install. Not exactly cheap though

(30 bucks ish for the OEM ones)

07-14-2019, 08:24 PM	#1
Jack Black Member Join Date: Mar 2012 Drives: 2015 FR-S Location: North North Raleigh Posts: 44 Thanks: 2 Thanked 14 Times in 9 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Spontaneous loss of fender liner at autocross My FR-S spit out the passenger front fender liner during an autocross run. Anybody else have this happen? It was pretty mangled by the time I got it back, but no obvious signs of previous damage, and nothing obviously bent or broken in the fender well. My best guess is that it was a pretty brake-heavy course and this was my 3rd run, so it had gotten soft enough to sag or let go somewhere. It felt pretty hot/soft when I picked it up at the end of the run group, about 30 minutes later.

07-15-2019, 01:43 AM	#6
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,369 Thanks: 709 Thanked 1,558 Times in 930 Posts Mentioned: 30 Post(s) Tagged: 0 Thread(s)	It happens. You have to remember that the liners are only held in place by plastic fasteners Over time even road debris can take out the fasteners. And yes I have lost two liners during autox and at a track day. I put the linger in trunk and just ordered the fasteners from the dealership. __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

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07-14-2019, 09:59 PM	#2
Rigel Junior Member Join Date: Jun 2019 Drives: 2013 Scion FRS 10 series Location: SoCal Posts: 9 Thanks: 0 Thanked 6 Times in 4 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I lost mine on the way home from an autox. Check to see if the tabs that mount it to the bumper are broken.

07-14-2019, 10:12 PM	#3
kinghurl Senior Member Join Date: Jan 2014 Drives: BlueBurz Location: SoCal Posts: 247 Thanks: 14 Thanked 44 Times in 30 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Usually not spontaneous. Cone contact with bumper or running over one usually rips the front mounts out, the wind does the rest. Ahhh, I remember my first like it was 5 years ago....so many cones, so many many liners! Have a new one sitting in the garge in the box right now. Sent from my SM-G930V using Tapatalk

07-14-2019, 10:21 PM	#4
Jack Black Member Join Date: Mar 2012 Drives: 2015 FR-S Location: North North Raleigh Posts: 44 Thanks: 2 Thanked 14 Times in 9 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I've plowed quite a few cones in my day, but now that you mention it, there were cone calls on my previous two runs. Maybe I've just been lucky so far.

07-14-2019, 11:51 PM	#5
ka-t_240 Senior Member Join Date: May 2014 Drives: BRZ Location: Fargo, ND Posts: 968 Thanks: 124 Thanked 327 Times in 236 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Seems its common, especially with wider/sticky tires. I have rubbed mine, and lost one in bumpy lots.

07-15-2019, 01:45 AM	#7
JD001 Senior Member Join Date: Apr 2015 Drives: Subaru BRZ Location: UK Posts: 6,028 Thanks: 7,652 Thanked 6,187 Times in 3,474 Posts Mentioned: 25 Post(s) Tagged: 2 Thread(s)	Are we talking about losing bits of the car after a crash?

07-15-2019, 07:19 AM	#9
steverife Senior Member Join Date: Feb 2018 Drives: 2016 Scion FRS Location: Knoxville, TN Posts: 457 Thanks: 52 Thanked 275 Times in 181 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Just wait until you spin and broadside a pointer cone at the top of 2nd.

07-15-2019, 01:00 PM	#11
mb_ Ex-MR2 owner Join Date: Mar 2015 Drives: Scion FRS Location: BC Posts: 128 Thanks: 32 Thanked 33 Times in 24 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I lost mine at a track day but that was after running into an apex cone. It didn't come off until about 2 laps later. I think I hit it at the perfect spot that the fender liner didn't wanna be attached to the car anymore.

07-15-2019, 01:42 PM	#12
MaverickMonk Senior Member Join Date: Mar 2019 Drives: 13 BRZ Limited Location: DC Posts: 111 Thanks: 32 Thanked 42 Times in 28 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I haven't had to do it on my twin yet, but my impreza had similar issues, and I discovered that using zipties through 2 adjacent clip holes is a lot sturdier than the push clips. That said, I would only do it if clip loss and flapping around is what lead to it swallowing its own tongue. If you're ripping them off from rubbing/impact, then the fender liner is coming off anyway, and you want it to be attached with breakable clips as opposed to zipties, so you don't rip through mounting tabs or destroy the fender liner.

07-15-2019, 02:05 PM	#13
Bitters Member Join Date: Sep 2017 Drives: Searching for next Location: Calgary Posts: 31 Thanks: 2 Thanked 6 Times in 4 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I broadsided like Rife said... huge dent in the bottom/side skirt section of the fender, needed bodywork to fix.

07-15-2019, 05:18 PM	#14
SmoothIsSlow Member Join Date: May 2019 Drives: BRZ Location: WA Posts: 58 Thanks: 32 Thanked 14 Times in 12 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I have destroyed two sidemarker assemblies so far. Luckily they are easy to install. Not exactly cheap though (30 bucks ish for the OEM ones)

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