I posted something similar over at Rennlist and think I’ve figured out what I want to do but I also wanted to get thoughts from the 981 community specifically.
981 2.7, 18” wheels. Started doing DEs last year, love it and want to do a bunch more. Stock pads performed great for me, but I went through them pretty quickly so I’m going to run track pads this year. I’m going to install caliper studs to make changing pads easier/less risky and that’s where I ran into the question of rotors: my stock drilled rotors seem fine now, but they’re going to crack/wear too thin eventually. The slotted rotor selection for 981s isn’t all that huge, so I was thinking of switching to Girodisc (or something else) up front at some point. But they’re bigger than stock, so if I installed studs now that worked with my stock rotors I would need to replace them with longer studs if/when I switch to a larger rotor to avoid dealing with the problems of drilled rotors.
So my questions are: is it worth it to go with standard length studs now with the likihood of having to replace them with longer studs later, in terms of the effort/potential problems from removing them once they’re locktited (is that a word?) in place? Regardless of when I do it, is there any problem with running larger rotors just up front or even with larger rotors front and rear? I wouldn’t think it would cause an ABS issue but it would be good to get some insight from you guys with more experience with this. Also, will the 350mm rotors from Girodisc fit under my stock 18” wheels or will it be a tight enough fit that it might be a problem?
I’m not trying to build a track car, just get away from a couple of problems that I think are likely to come up as I start to spend more time doing this. I’m not trying to avoid spending money so I don’t mind doing things up front that I’d have to do eventually even if I won’t see the benefits right away, but I’m also not trying to throw it away so I’m just trying to do what makes sense.
981 2.7, 18” wheels. Started doing DEs last year, love it and want to do a bunch more. Stock pads performed great for me, but I went through them pretty quickly so I’m going to run track pads this year. I’m going to install caliper studs to make changing pads easier/less risky and that’s where I ran into the question of rotors: my stock drilled rotors seem fine now, but they’re going to crack/wear too thin eventually. The slotted rotor selection for 981s isn’t all that huge, so I was thinking of switching to Girodisc (or something else) up front at some point. But they’re bigger than stock, so if I installed studs now that worked with my stock rotors I would need to replace them with longer studs if/when I switch to a larger rotor to avoid dealing with the problems of drilled rotors.
So my questions are: is it worth it to go with standard length studs now with the likihood of having to replace them with longer studs later, in terms of the effort/potential problems from removing them once they’re locktited (is that a word?) in place? Regardless of when I do it, is there any problem with running larger rotors just up front or even with larger rotors front and rear? I wouldn’t think it would cause an ABS issue but it would be good to get some insight from you guys with more experience with this. Also, will the 350mm rotors from Girodisc fit under my stock 18” wheels or will it be a tight enough fit that it might be a problem?
I’m not trying to build a track car, just get away from a couple of problems that I think are likely to come up as I start to spend more time doing this. I’m not trying to avoid spending money so I don’t mind doing things up front that I’d have to do eventually even if I won’t see the benefits right away, but I’m also not trying to throw it away so I’m just trying to do what makes sense.