can definitely go much lower if desired. When i Originally installed the top of the tire was completely tucked behind the fender. over half an inch of tire if I were to guess.

 

Congrats. 300/600 converts to 52/105 (Clearly they rounded off. So most likely you have 50/110) 50/110 is what Ohlins or B16 are offering.

SPASM which is standard on GTS is 33/108. So your setup is midly better. A tiny bit better. If you want to make it substantially better, without changing both, just increase the front a little more.

80/110 won't be any stiffer than what you have now. But it will handle considerably better.

in your speak, it will be 450/600. 1:2 ratio (300/600) is not a high performance setup for this car. Springs are cheap. swap out those fronts for some 80's (450) and then you'll be cooking with gas.

If you want GT3 type handling you'll need 100/140 minimum. ( 570/800)

992 GT3 for comparison are 570/915 (100/160) I only put the comparison so you understand how extremely conservative you have been.

 

This is great context. Thank you. I’ve followed your .2 build and will likely go full Tractive someday but will swap to the stiffer springs per your suggestion - they are cheap.

One thing I’ve yet to do in this phase is upgrade roll bars. Is that worthwhile in your view @4 Point 0 ?

 

Yes it is, however you need a stiffer front end first.

Remember above i said 1:2 was a bad ratio for this platform? I had 75/150 which is 1:2 and when i added stiffer anti-sway bars i lost drive out of the corners. Meaning the rear would start spinning.

i upgrade the front to 100, which restored drive at 100/150.

 

Has anyone researched the maximum spring rate the OEM dampers can handle? Can I assume the GT3 dampers are designed for GT3 spring rates and lower models may not be?

It will get to a point where the band-aid of these lowering kits will reach their limits on the OEM damper and have to go Tractive (to keep electronics) or Ohlins or ??? (Other high end coil over).

my assumptions correct?

 

this was 100% the right call. At 450 front now and left the 600 in the rear. Installed with tarret front & rear anti-sways + adjustable drop links. Dramatic improvement with no appreciable increase in ride harshness or any other downside.