Quote:
Originally Posted by roastbeef
aesthetically, yes, 19's look great.
secondary to that, i'd argue that going with 19's with the track in mind is hindering performance. it seems like it is slightly easier to keep pressure in the right range (temperature) with less wheel and more tire. diameter wise, there is still something there- its just tire instead of wheel.
another benefit of 18's is the tire has more body to it to act like a "spring" and behaves more like a suspension component rather than a rubber band on a wheel. berms and imperfections on both the road and track become more pronounced with less tire.
now, take that above statement as theory and opinion, but i think most people will back me on that. there is a compromise with 19's, otherwise, people would more commonly run 19's.
you can still get high performance out of 19's. all the heavy hitters (porsche, mclaren, etc..) at track days have 19's, but they also have massive carbon brakes and massive wheel wells so they don't have to compromise with sidewall height like we would. i think this also helps with tire carcass temperature management because they have more tire everywhere.
getting back to your original question- yes, you can upgrade to potentially lighter weight 19's and gain performance. you can also upgrade to 18's and have more performance.
|
Quote:
Originally Posted by DRLane
Fully agree with Roastbeef!
OP I think you'd be surprised at how subtle the difference is visually between 18 and 19.
My BBS CHR 19s (255/295) PS2 worked great for my first year tracking. Was able to get 10 days in with various groups in Colorado (BMW, NASA, SCCA, 3RRacing) without too much drama. Had one over zealous event spinning off the track at >60pmh and rolled the beads on the driver side of the car. Luckily the 3R Racing tech team was able to get be back together. Now I'm running AS tires on these wheels to disincentivize driving aggressive on the streets and save speed for the track...
End of season I got Titan7, 18" as dedicated track wheels with RRs (275/295).
|
Thanks guys, yes I'm now leaning towards the 18x10, 275/35 setup running perhaps RE-71's. Curious what coils are you guys running? I am looking into the KW CS, TCK or far fetched...JRZ DA.