I too apologize if I offended you. Others have expressed concerns as well and I personally would feel somewhat responsible if you had an issue and accident from going down a path that I knew wouldn't work. We aren't talking about going from a 205 to a 215 on a spec miata, you have a very fast car and are pushing boundaries that I myself have not tried and am just giving cautionary advice since I don't know what will happen with various ratios. Heck, we could possibly run the same diameter F-R and the ABS system could handle it, but I doubt it.
Since you're not driving a spec miata, and driving a car that's probably faster than my racecar, it's important to get the fundamentals down (setup and driving wise) because building off a bad foundation (setup or driving wise) can be very bad in a fast car. If you had a 12C or 458, they have amazing stability systems that will save you. Your NSX is built to a very high performing level, but it'll do what you tell it to - whether you tell the car to do something good or bad, it'll do it and won't save you.
I'm not giving you a hard time about your ceramics. I think it's cool. But like you, we are both in a large caliper, 14" rotor box. RYU and I have done a ton of work to correlate wheel width to offset, camber, tire sizing, etc... From this work, I gave you some #s on what would be close and what would be 'preferable' to give you enough clearance to not have to buy a new wheel and tire as well as have enough room to adjust your cambers in the future according to how your setup is performing. If you try to hit an offset # just because someone else has, but it limits your camber, then you greatly compromised the on-track handling of your car just to hit a #, or because you were looking at 1 factor and not the whole package.
Same thing for tires. One minute you 'need' R-compounds, then the next you're talking about a lower performing street tire that's 4lbs lighter than a much better performing street tire. I'm all for research and the 'journey', but I think it's important for you to clearly define your goals to yourself and build off of that.
I have no problem answering your questions and advocate you and others do so, that is what a forum is for and I hope to help out the community. You can email me at anytime at
[email protected] and please do so. I wasn't aware of your hospitalization and hope you recovered and everything is well, I agree there are more important things out there than car parts, but it's a passion and hobby for me too. I don't have to be on this forum, but I really like the NSX platform and enjoy being apart of the community and helping others, especially when trying new things, busting misconceptions, and providing objective data on areas that are not well known. I also hate spending 2-3X the money on something because of cutting corners or not doing my homework, and hope to help others prevent from doing it as well.
