Again, my math could be off. I'm not sure how the hat height works with a thicker rotor.

As in, if you were to set the rotors on a table - would it be 7mm overall height difference or would it be 10mm height difference (7mm difference in hat, 3mm difference in rotor width) or 8.5mm (hat difference + 1/2 rotor height) etc.


Either way, we need to know the absolute height difference between the two rotors, subtract 1.5mm (to shift the rotor back to center of the bracket) and that's the required spacer.

 

Its been measured(on one of these pages) but I dont think the info we need is listed. Its just the overall height. Someone might need to just go to a parts store and measure them, granted they are instock.

 

DBA has it all on their website. That's where I got my numbers. Keep in mind though, I've found several mistakes on the website too but, if you crosscheck, you can usually figure that out.

 

Overall height is fine.

If there's a 7mm difference overall, the stock rotor needs to move inboard 1.5mm to be centered, then the spacer should be 5.5mm (a 5mm spacer would have a 1mm larger gap on one side than the other).


ETA: This project is on my list of to-do's. I'm looking into upgrading my RB 2-piece rotors to thicker rotors, using a shim to shift the bracket 1.5mm from the knuckle (move it closer to the wheel to center the bracket, 28mm thick rotors). This, of course, depends on how much I spend over xmas...

 

your math seems right and that's a good idea of using thicker RL rotor ring on S2000 hat to get the right rotor offset with RB two piece rotors. but i would still put all the pieces together then get measurement with all the piece on and determine if you need shims/spacers.

i was thinking of using Accord calipers. what's the advantage of using CL over Accords other than pads selections? i think it's easier to get used Accord calipers. i don't want to spend money to get brand new calipers if this is not going to work out.

are the offset of the CL calipers different from the Accord? are CL rotor thickness the same as Accord rotors? if i use Accord calipers on s2k rotors, do i have to worry about the large gap between the bracket and rotors or that's only a problem if i use CL calipers?

 

I am pretty sure if a spacer was used with the cl caliper and stock s2k rotors, you would NOT have to worry about the backing plate some how coming out. Only thing you would need to figure out is how thick of a spacer you would need with stock s2k rotors with cl calipers. i would think it would be pretty small.

 

Rollbar's in. I'll take some brake pictures tomorrow.

Let me just say that rollbar into an AP2 isn't like what's in the instructions at all and you have tear up a significant amount of the interior including the roll hoop plastic to even get it to fit.

The instructions say to remove the "top motor covers" but, that's not what they really are. The covers are actually two chassis re-enforcement gussets. I suspect they don't call them the right name because you loose these braces during the install.

Can't use the secret compartment anymore too.

 

Yea, Roll bar in my car when its not a daily anymore

 

Around here, you can't take it to the track AT ALL without a rollbar.

 

yea, Where are you?

I know there are a few tracks around nashville(within a few hrs) that dont require, but some that also do require. So, Its hit & miss.