I remember seeing some official looking Porsche document in the past but now can't find it. It showed the 997 and various factory specs for the suspension whether the model was base, S, PASM/SPASM, etc. Does anyone recall something like this?

The reason is I would like to lower my 997.1 C2S, to whatever the factory lowest height was. I think the GT3 perhaps is lowest, but how much lower than the C2S with PASM?

 

Here are the non-gt numbers

 

Here is another thread:
https://rennlist.com/forums/997-foru...de-height.html

 

Thank you!

 

The heights listed in the official Porsche specs are based on specific measuring points on the car. In the front, it's the bottom of the front subframe bolt that also goes through the front of the caster arm. In the rear, it's this specific spot on the rear subframe that is called a "locating bore". Here are pics showing where these locations are: https://rennlist.com/forums/997-gt2-...ml#post9959947

I'm working on this myself right now as I adjust my new Ohlins coilovers to my desired height. What I like to do is get the car up on block platforms that I built, use shims to shim the platforms perfectly level individually, then user a laser level to get them even on height (by adding plywood, aluminum, or plexiglass shims on top of the platforms), then move the laser level so it's flush with the top of the platforms and measure the ride height by placing a small metric ruler against the measuring point and then seeing where the laser beam hits it. I prefer this vs being on the ground because most ground is not perfectly level, and you can only get a measuring device under the car that is shorter than the span you are measuring, and it's HARD getting under the car when it's on the ground. Having it up also makes things a bit easier to adjust too.

 

Perfect, thanks!

 

I have Eibach on my 997.1 and my most professional race alignment mechanic said as it was lowered, it then needed to go with the GT specs and it made a perfect difference.