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I would bet that if your wheel is checked you will find that it will have at least one flat spot if not more (from previous pot hole hits). Are you telling us that the tire didn't deflate with that hit?
In my case the tire did not deflate or even lose pressure.
i experienced shock tower failure at VIR this weekend just as described in this thread. No tire damage or wheel damage just catastrophic failure of the medal.
Whst does Porsche have to say about this weakness.
Is there any recourse. Any experience fixing the damage.
So sorry. Porsche has made no public comment on this sort of failure, and in my purely street case explicitly denied any responsibility.
The good news is that if you use a Porsche certified shop that uses the correct-and-car-specific frame jigs, the repair can be perfect and indistinguishable from original.
i experienced shock tower failure at VIR this weekend just as described in this thread. No tire damage or wheel damage just catastrophic failure of the medal.
Whst does Porsche have to say about this weakness.
Is there any recourse. Any experience fixing the damage.
Can you share what happened on track when the damage occurred?
I was driving 7/10 at 106 mph and drove over the berm at turn 9 which is the end of the uphill esses.
There was a bump and a pop but i did not loose control of the car.
I was driving 7/10 at 106 mph and drove over the berm at turn 9 which is the end of the uphill esses.
There was a bump and a pop but i did not loose control of the car.
Thanks for sharing. Is that a tall leading edge of a berm that isn't intended to be driven over, or just a normal berm that you use every lap and this time it popped?
I was driving 7/10 at 106 mph and drove over the berm at turn 9 which is the end of the uphill esses.
There was a bump and a pop but i did not loose control of the car.
Was the car at stock ride height or did you lower it some?
I'm wondering if the cars to which this has happened were lowered. Maybe the struts are "topping out" (bottoming out?) going over berms and other bumps, and transmitting that impact into the strut tower. The struts don't seem to have much of a bump stop.
I was hoping this thread had died never to be resurrected again. Ugh. Glad you were able to maintain control and no injuries or crash resulted from the failure.
Here's are pictures of the beginning and end of the Turn 9 curbing at VIR. These were from my in-car cam last month. I try not to hit the beginning of curbing (usually doesn't make sense since the apex is normally after that anyway) and will make sure to avoid this one, that's for sure. That's a pretty big hole in front.
I just looked at the video again and that curbing doesn't have much in the way of rumble (gator) strips compared to other turns. See the third picture of turn 7.
Why wouldn't this be happening to the GT3 since it uses the same front suspension?
That is an interesting question. If the top mount is the same (which I believe to be the case) my theory is that the front springs on the GT4 are too soft....leading the front suspension to get into the bump stops, then to infinite spring rate, with a significantly lower load than would be required on the GT3 - leading to these failures we are seeing on the GT4.
One thing is for sure....those motorsport reinforcement plates will be going in before my next track day, and I will be taking it easier on the curbs.
Last edited by FLACHT6_pilot; 10-31-2017 at 12:57 AM.
There were several cars this past weekend with NNJR that have had bent wheels at VIR due to this ,mine included, one GT4 had a tower strut failure as well...not sure why VIR won't have a perm fix to it?
09-04-2017, 09:53 PM
