strut tower failure
I couldn't find a lot on p-9 in regards to the strut tower failure that has been reported on our cars. I apologize if we have covered this. There is another forum with an extensive conversation on this failure. One of the members has gone to the point of creating a database of the failures. If you are not aware of this failure google porsche strut tower failure.
In this forum they have mentioned that tarett maybe making a brace for this failure and Rick Deman Motorosports is also looking at a fix. This seems to be speculation at this point. Porsche does make a bracket that goes over this area, however it seems to be more of a safety precaution as it is just a plate that covers the top of the tower. I have attached a photo of this apparent fix.
Some blame this failure on a lowered car. Others blame the missing of a bump stop on the strut and more blame a weak area of the car. Some failures happen in accidents and others apparently happen while driving down the highway.
The tower that seems to fail most often is on the passenger side. Some people mentioned that the right side of our roads contain the most potholes, however others mentioned that the issues is just as bad in europe and is still on the same side. Another person pointed out that on the driver side front strut of our cars there is an area of the tower that has a bulge in the tower that provides a bit more support.
Apparently there is a brace for the rear tower in the gt4 that didn't come on the cayman 981. I have attached a photo of it. I couldn't find the part number. This brace is inside the rear tower and actually appears to be something that would help this sort of failure versus the top mount option on the front tower. I would imagine if they made a brace like this for the front they maybe admitting there is a strength issue in the front shock tower.
I went down the rabbit hole this am on this topic. I am sharing it with you all in the case that someone has any other information that I am missing. Does anyone know the rear part number for the gt4 sleeve that fits inside the rear shock tower? This seems to be a good fit with vertical rivet areas to transfer some of the load to those vertical areas and not the top of the tower. Do we know of any other fixes similar to this for the front? I don't believe the black plate that is placed on top of the shock tower will add enough vertical strength from a shock pounding through from the bottom. Its important to note that this is a cup car part and cup cars have had failures with this part.
How widespread is this problem? One person mentions they live in a populated metro area and there are two jigs in their city that are used to fix this failure. He said that both of them are fixing four cars a month. Is it really that bad? Was his information incomplete and they are fixing much more than shock tower failures with these jigs? They started a database of failures on this forum and have reported 9 so far. Should we be concerned?
The forum also mentions that when Porsche looks at this they find ways not to cover it. For example if you have a bent wheel they blame a pothole and not design defect. If you have track insurance they are apparently not covering it as there wasn't an accident and if it happened on the track your auto policy won't be covering it.
Its a failure that seems to be a really big pain in the a-- if it happens to you. Something to at least have a plan in place. If it happens, the costs have been estimated at 15-22k+
2014 Cayman S gt4 front clip center radiator, gt4 side vents, gt4 rear diffuser, rss lca and toe links -2.7 F, -2.8 rear, re71r, ag lightweight wheels, fabspeed race headers and cobb tune, kw H.A.S springs, gt3 front bar, tarrett rear bar, techno brace, giro discs, ds1.11, custom brake cooling, macan paddle steering wheel...2018 was my first summer, love this forum, it helped me to deplete my savings account.