odessa.filez
Autocross Newbie
- Location
- Roswell, GA
- Car(s)
- 2016 GSW 1.8tsi auto
on the camber wheel fitment, I can provide a small amt of context. I run TTS control.arms with their extendable ball joints. fully extended, I can get to between -2.5 to -3. My 245 tires along with 15x8 wheels would rub, if they weren't smaller than stock diameter. Note that others who've tried the TTS arms have run out of tie rod to safely adjust toe to zero, on GTI spindles (I have not had this problem with Golf steel spindles, but it speaks to a limitation should you try and get more camber from an LCA).Regarding the control-arms-for-camber point, I am looking for about 2 degrees of front camber to start, seeing as the wheel will deflect less with spherical bearings and will therefore need less static camber to compensate. Given all of that, would there be a significant difference in wheel fitment to get -1 from CSS swivels (or camber plates) and another -1 from the control arms vs. -2 from the control arms alone?
For spring rates, I will just use the 70N/mm front and rear that are supplied with coilovers. I don't know how to get a combined rate given the bar rate (which I do not know), if that's what you're asking. If it is, I'd appreciate some help with the calculation if you think it is important to know for setting up the car at this level.
I feel you on the chassis bracing. I'm dubious on the effect of bracing on this chassis given how stiff it is supposed to be from factory. However, for the mounts, I do feel my engine moving quite a bit with just an APR stage 1 low torque tune so the mounts are definitely on my list if only for that reason. I'm not too concerned with lap times or objective speed, just how it feels to drive.
Cooling is gonna be the next phase of mods for me, at minimum I will get an upgraded IC before hitting AX or track.
Re spring rate on your coilovers, nothing wrong with what you plan to start with. My comment is more along the lines of having a vision of the ideal for track. It might change your view on choice of bars and thickness.
Your camber choices/limits and spring (roll control) will ultimately be an integrated decision. You can let your tires confirm that for you as you go.
I pursued building a high front camber capacity, thinking it gives me a little more leeway to run softer up front than some. For AX, I have a huge rear spring bias to help the car on slower courses. So much it would be dicey on a fast course and I suspect dangerous on a track.