Shock tower failure on 718 Spyder
07-22-2020, 09:03 PM
#61
Rennlist Member
The 981 GT4 did, not the 981 Spyder. Now in 718 they both have it.
Definitely not worthy on its own. There's a pro/con list to which this item gets added.
Not sure it's a worthy plus for the 4.0. The issue isn't as common as the forums let on.
07-22-2020, 09:11 PM
#62
Originally Posted by hf1
The 981 GT4 did, not the 981 Spyder. Now in 718 they both have it.
07-22-2020, 09:13 PM
#63
Burning Brakes
For a car that was introduced to the buying public by overtly showcasing these cars getting tossed about over aggressive curbing at Knockhill, this just makes it that much more absurd.
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KLOC (07-21-2021)
07-22-2020, 09:20 PM
#64
From the prior 981 thread on this issue, discussing what one owner did to check this:
"The OP even went so far as to send out his broken tower to a very high end testing facility who determined that while there was a previously existing crack that was then blown out by the pothole, they found no casting imperfections and did discern the alloy used was a "very strong" one."
"The OP even went so far as to send out his broken tower to a very high end testing facility who determined that while there was a previously existing crack that was then blown out by the pothole, they found no casting imperfections and did discern the alloy used was a "very strong" one."
07-22-2020, 09:25 PM
#65
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This thread may be a false alarm then, unless someone else has a front or rear shock tower failure.
07-22-2020, 09:27 PM
#67
I do not buy the excuse that this type of failure is acceptable because it is a high performance vehicle, those two are not mutually exclusive. There are plenty of cars (including Porsches) that handle well and do not shatter over potholes.
In the suspension, the strut tower is the worst possible component that could fail. It is difficult to fix, expensive to repair and cannot be replaced with a more durable part. If it was anything else it wouldn’t be as big of a deal as the wheel, control arm, anti-roll bar, shock, spring, etc. are serviceable in a home garage with basic tools & knowledge and can be upgraded with a different part.
I wouldn’t let this get in the way of buying the car if I really wanted it but it would be on my mind and I’d be extra cautious about road quality, bumps, berms, etc.
In the suspension, the strut tower is the worst possible component that could fail. It is difficult to fix, expensive to repair and cannot be replaced with a more durable part. If it was anything else it wouldn’t be as big of a deal as the wheel, control arm, anti-roll bar, shock, spring, etc. are serviceable in a home garage with basic tools & knowledge and can be upgraded with a different part.
I wouldn’t let this get in the way of buying the car if I really wanted it but it would be on my mind and I’d be extra cautious about road quality, bumps, berms, etc.
From the prior 981 thread on this issue, discussing what one owner did to check this:
"The OP even went so far as to send out his broken tower to a very high end testing facility who determined that while there was a previously existing crack that was then blown out by the pothole, they found no casting imperfections and did discern the alloy used was a "very strong" one."
"The OP even went so far as to send out his broken tower to a very high end testing facility who determined that while there was a previously existing crack that was then blown out by the pothole, they found no casting imperfections and did discern the alloy used was a "very strong" one."
So then, it seems that perhaps the towers are not designed to sustain the loads imposed by the GT3 suspension
07-22-2020, 09:36 PM
#68
Can you provide a link or is it a closed group? Would be interested in reading the original German posts. PAG did indicate that on the 981 they had to reinforce the rear mounting points.
07-22-2020, 09:40 PM
#69
Rennlist Member
Not sure if a rear failure is better than a front failure but very interesting. It looks like the shock ripped up the top hat on some type of compression event but the owner says no bump.
For those familiar with the rear suspension on these cars, how does that look? The top hat is obviously busted but it is unclear to me if the strut tower is damaged. To my untrained eye it looks OK. If it isn’t then that is a much less expensive repair then the traditional strut tower failure.
For those familiar with the rear suspension on these cars, how does that look? The top hat is obviously busted but it is unclear to me if the strut tower is damaged. To my untrained eye it looks OK. If it isn’t then that is a much less expensive repair then the traditional strut tower failure.
07-22-2020, 09:47 PM
#70
Not sure if a rear failure is better than a front failure but very interesting. It looks like the shock ripped up the top hat on some type of compression event but the owner says no bump.
For those familiar with the rear suspension on these cars, how does that look? The top hat is obviously busted but it is unclear to me if the strut tower is damaged. To my untrained eye it looks OK. If it isn’t then that is a much less expensive repair then the traditional strut tower failure.
For those familiar with the rear suspension on these cars, how does that look? The top hat is obviously busted but it is unclear to me if the strut tower is damaged. To my untrained eye it looks OK. If it isn’t then that is a much less expensive repair then the traditional strut tower failure.
07-22-2020, 09:48 PM
#71
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Not sure if a rear failure is better than a front failure but very interesting. It looks like the shock ripped up the top hat on some type of compression event but the owner says no bump.
For those familiar with the rear suspension on these cars, how does that look? The top hat is obviously busted but it is unclear to me if the strut tower is damaged. To my untrained eye it looks OK. If it isn’t then that is a much less expensive repair then the traditional strut tower failure.
For those familiar with the rear suspension on these cars, how does that look? The top hat is obviously busted but it is unclear to me if the strut tower is damaged. To my untrained eye it looks OK. If it isn’t then that is a much less expensive repair then the traditional strut tower failure.
07-22-2020, 10:09 PM
#72
+the way it's torn, really looks like something whacked suspension real hard to create enough force to rip that top hat side ways. Hard to believe the owner didn't do anything, there's probably more to this story...
07-22-2020, 10:22 PM
#73
Rennlist Member
Possibly damaged during transport before delivery?
07-22-2020, 10:23 PM
#74
Rennlist Member
That looks like a tension failure. It looks like the top of the shock tore when the suspension was unloaded. Maybe they were doing a Dukes of Hazard jump. Even so, it would be really bizarre for it to tear just under the force of gravity (weight of the suspension hanging down), but it sure looks like a tension failure. The shock tower looks ok. And a rear failure would we far easier to fix since there is nothing else really going on back there. Quite strange.
07-22-2020, 10:24 PM
#75
For sure. Pretty unlikely that this damage just happened with no outside force.