Supercharger + Flex = Cracker Windshield? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

milhouse · 06-21-2017, 10:10 PM

I just tracked my supercharged brz at NJMP for the first time (did many pre-supercharged) and at some point developed a crack from the bottom of the passenger side of the windshield. Talking to the BMW track rats, they said it's expected now that I have more power because the car will flex more, and recommended some cross-bracing. Then they showed me their E36s that all had the same crack (though not as big) Of course I just replaced the windshield (with Pilkington glass) in March.....

Any way, has anyone else experienced this issue, and/or agree with the suggestion?

Thanks.

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strat61caster · 06-22-2017, 02:44 PM

imo that seems like a silly thing to say, otherwise stoplight warriors and dyno queens would crack windshields too. I'd bet if it has to do with driving hard it has to do with cornering loads and you'd be just as susceptible at 200 hp as 600 hp if you can chuck it into a corner hard enough.

pgranberg11 · 06-22-2017, 03:57 PM

Quote:

Originally Posted by milhouse

I just tracked my supercharged brz at NJMP for the first time (did many pre-supercharged) and at some point developed a crack from the bottom of the passenger side of the windshield. Talking to the BMW track rats, they said it's expected now that I have more power because the car will flex more, and recommended some cross-bracing. Then they showed me their E36s that all had the same crack (though not as big) Of course I just replaced the windshield (with Pilkington glass) in March.....

Any way, has anyone else experienced this issue, and/or agree with the suggestion?

Thanks.

Sent from my ONEPLUS A3000 using Tapatalk

I find this very strange. I've been tracking super charged for a little over two years now and developed no cracking. Maybe it was unfortunate enough that a small debris hit your windshield, but hit it so fast that it caused the glass to track? Just speculating here, probably not the case, but I'm sure of what would cause the windshield to crack...

milhouse · 06-22-2017, 04:04 PM

Quote:

Originally Posted by pgranberg11

I find this very strange. I've been tracking super charged for a little over two years now and developed no cracking. Maybe it was unfortunate enough that a small debris hit your windshield, but hit it so fast that it caused the glass to track? Just speculating here, probably not the case, but I'm sure of what would cause the windshield to crack...

Based on the position of the crack - it starts on the edge of the windshield - i don't think it could have been a rock because its below the hood. Though its possible something was "popped up" by a car in front of me and I was just unlucky.

It also showed up between sessions, but I don't know if that means anything.

VIP BRZ · 06-22-2017, 04:08 PM

"Cracker Windshield"

Whoa man, slow your roll

strat61caster · 06-22-2017, 06:23 PM

As a note, windshields sometimes crack, chassis flex is sometimes blamed but sometimes something just isn't quite right, nothing is failure proof.

http://www.ft86club.com/forums/showt...91#post1195691
http://www.ft86club.com/forums/showthread.php?p=1218466
http://www.ft86club.com/forums/showthread.php?t=69756
http://www.ft86club.com/forums/showthread.php?t=10627

milhouse · 06-22-2017, 06:34 PM

I don't see an impact mark (the photo is misleading) but it definitely seems like a strut bar wouldn't have made any difference, based on the response here and even from Perrin (who actually sells them).

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SuperTom · 06-22-2017, 07:15 PM

Quote:

Originally Posted by VIP BRZ

"Cracker Windshield"

Whoa man, slow your roll

Sounds better than a redneck windshield

Lunatic · 06-22-2017, 07:17 PM

I've got several track days on my e-85 supercharged FRS with no additional bracing and windshield is just fine.

Robbie · 06-30-2017, 10:31 AM

Those guys sold you a bunch of horse shit.

jbailey8748 · 10-26-2017, 12:35 AM

Quote:

Originally Posted by milhouse

Based on the position of the crack - it starts on the edge of the windshield - i don't think it could have been a rock because its below the hood. Though its possible something was "popped up" by a car in front of me and I was just unlucky.

It also showed up between sessions, but I don't know if that means anything.

The first winshields I had to replace in this car was a rock hit below the resting will shield wiper. Crazy hit but it can happen

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steve99 · 10-26-2017, 01:34 AM

You said tou reciently had winsgield replaced.

Possible flaw or defect in new windshield
Or in correct install may jave contributed to crack

Plenty of high hp guys tracck cars cracked windshield dont appear to be routine failure

dattran86 · 10-26-2017, 09:27 AM

it could be just rock, or something that hit your windshield.

it could be a cool story to tell your buddy tho,

ya man my car is too fast, it cracked the windshield.

endless_pain · 10-26-2017, 12:09 PM

I have 3 and I'm NA.

[ame="https://www.youtube.com/watch?v=LEKjUMljQgw"]NASA VIR OktoberFAST - Turn 10 FAIL - YouTube[/ame]

10-26-2017, 09:27 AM	#13
dattran86 Driver Join Date: Aug 2016 Drives: 2013 Whiteout FRS Location: Toronto/GTA Posts: 539 Thanks: 427 Thanked 237 Times in 159 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	it could be just rock, or something that hit your windshield. it could be a cool story to tell your buddy tho, ya man my car is too fast, it cracked the windshield. __________________ Check out my website: http://www.aim4apex.com/ IG: aimforapex

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