4carl

Yes i discussed that with SP and thats what the factory does on the CS? two bolts each would be better! SP sells the set with bolts and spacers for $350. What do just the plates sell for?

ExMB

If you notice on the other pics you'll see that the passenger side has a 991 # and the driver side a 981 #

speedoflight

i got the PMNA brackets for $210 plus tax. contact Scott Z. of Porsche of Fremont. he'll hook you up. if he asks, tell him joe sent you.

ExMB

Typical CA pricing + ADM



List on those is

9915042848A AS PLATE STRUT MOUNT $68.96
9815042838A AS PLATE STRUT MOUNT $104.32

4carl

Actually looks like the Santa Barbara discount twice list +20% for Montecito.
good work

Alan C.

Track Junkie

There are two forces it has to absorb, vertical acceleration and fore-aft acceleration. Vertical acceleration the strut mostly absorbs and fore aft acceleration want to rip the strut mount mostly forward when the tire hits a significant forward obstruction.

4carl

Went to my dealer in Santa Barbara and they couldn't find the numbers in there system?

Voyager6

I found the 991 part in a 2016 Cup Parts list. Motorsports only?

ExMB

Yes, those are PMNA PNs and preferably the ordering dealer should have a motorsports department, service, etc. in order to get those.

Joe Weinstein

For the problem this thread addresses, the force is entirely vertical, as when the shock is compressed completely so as to act as a solid ram on the shock tower, blowing it vertically out the top. The ideal support would mate with zero gap to the entire upper shock tower surface, or at least over the entire area above where the shock would push up, and be bolted onto the surrounding chassis with enough support/compression to bear a significant shock load. It may be that the cost and weight of that part, and the frame rigidity needed to support it is impractical as an after-fitting, dunno... But the whole idea is to remove the ring of shear being imposed on the shock tower casting, relegating the shock tower top to be the flat unbending face of a stronger support.
IMHO.

jmartpr

I ended ordering the brackets from SP Motorsports....they do charge more than getting them from a dealer but they include bolts and spacers to connect these to the chassis behind the strut towers. Not sure of the benefit but guess it doesn't hurt to have them anyway.....

Grevington

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.

Grevington

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.

ExMB

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?