fewtrees Posted July 7, 2023 Report Share Posted July 7, 2023 Hi, Just a quick note for future reference if anyone fits a rear subframe strut bar aka "ballybrace" / "pedrobrace".. Rennlist do one too but it's 4x the price of Micks.. I run a stiff setup using KW V3's.. For comparison the 987 Spyder has spring rates of FR 30Nm/mm & RR 43Nm/mm, the KW is 40Nm/mm and 90Nm/mm respectively. Compression is set very slightly too stiff, it needs a click backing off each end.. Anyway.. the brace.. has made a heck of a difference. With a stiff setup the springs/compression are putting a significant load through the chassis and this results in a lot of scuttle shake/chatter. After fitting the brace, there's no scuttle shake. I can feel what's going on from the rear - I can feel the rear is planted and the suspension is doing what it's supposed to. It feels a lot more solid. To be fair, I don't drive this car conservatively, it gets pushed and I reckon if you do the same, you'll notice a large improvement in behaviour from the rear.. So a big thanks to @bally4563 for machining the part and fitting - it's helped massively. 3 1 Quote Link to comment Share on other sites More sharing options...
bally4563 Posted July 8, 2023 Report Share Posted July 8, 2023 16 hours ago, fewtrees said: Hi, Just a quick note for future reference if anyone fits a rear subframe strut bar aka "ballybrace" / "pedrobrace".. Rennlist do one too but it's 4x the price of Micks.. I run a stiff setup using KW V3's.. For comparison the 987 Spyder has spring rates of FR 30Nm/mm & RR 43Nm/mm, the KW is 40Nm/mm and 90Nm/mm respectively. Compression is set very slightly too stiff, it needs a click backing off each end.. Anyway.. the brace.. has made a heck of a difference. With a stiff setup the springs/compression are putting a significant load through the chassis and this results in a lot of scuttle shake/chatter. After fitting the brace, there's no scuttle shake. I can feel what's going on from the rear - I can feel the rear is planted and the suspension is doing what it's supposed to. It feels a lot more solid. To be fair, I don't drive this car conservatively, it gets pushed and I reckon if you do the same, you'll notice a large improvement in behaviour from the rear.. So a big thanks to @bally4563 for machining the part and fitting - it's helped massively. Rob, I didn’t expect it would be immediately a dramatic improvement , perhaps need to sell them to some of these suspension specialists, not sure if you can think of any 😂😂 1 Quote Link to comment Share on other sites More sharing options...
fewtrees Posted July 8, 2023 Author Report Share Posted July 8, 2023 Really was an "ah-ha.., that's better" moment 🙂 Quote Link to comment Share on other sites More sharing options...
Ninesomething Posted July 13, 2023 Report Share Posted July 13, 2023 I've had mine on and off a few times for various reasons. I don't notice the difference when I take it off but it always feels better when I put it on again. Go figure.... 1 Quote Link to comment Share on other sites More sharing options...
bally4563 Posted July 14, 2023 Report Share Posted July 14, 2023 Obviously not smoke and mirrors then !! Currently have one done for a 987 ready to ship. Quote Link to comment Share on other sites More sharing options...
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