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Last Wednesday I re-learned a valuable lesson in autocross, looking/planning ahead. In conjunction with that I have been taking a deeper dive into the setup on my 2017 Mazda 3 in preparation for next season which I plan to attend 70-80% of the events. The decision has been made to add RE71's to the car for next season, I want the grip. My goal is to remain in H-street but Im not afraid to step up to STS if the benefits can be argued into the PAX time. My oem wheel size is 18inch and with tire pricing Id like to drop to 17inch wheels. Now Im told the RE71's fit wider than most tires and as such you need a wider wheel or narrower tire width choice. I would like to have 225/50/R17 RE71's but from what I can gather I would likely need 17x8 wheels(or wider?) and that might break my budget. Is it worth spending the extra money on wider rims to accommodate the wider RE71 size I want, or should I just stick with 17x7 rims and drop to a 205/50/R17 size? Obviously I will need to keep within a +/- 5mm offset for all this if I plan to remain in H-street for the awesome pax adjustment but to accommodate the grip I am looking for with some possible changes to front and rear camber/toe I may just have to step up to STS. What do you guys think?
Alignment is worthwhile .... even without adjustments you can still loosen all the mounting bolts and get some extra negative camber which will give better performance and less tire wear on the track.R[/quoteActually if you can't tell the difference, then maybe you should also be taking more schools to increase your driving skills. You can always use a school to better yourself.R
Alignment is worthwhile .... even without adjustments you can still loosen all the mounting bolts and get some extra negative camber which will give better performance and less tire wear on the track.RActually if you can't tell the difference, then maybe you should also be taking more schools to increase your driving skills. You can always use a school to better yourself.R
I've seen a 245/40/17 on a 17x7 wheel before.
My Miata has 17x7 wheels, and 225 fits fine. However, I dropped down to 215 width and have seen no change in performance.I agree with the others -- stay in HS. ST* classes require a huge investment to be competitive, and a partial prep for the class will never work.
Quote from: JamesTCallaghan on August 14, 2017, 05:21:02 PMI've seen a 245/40/17 on a 17x7 wheel before.I did this once, but every set since has been 225/45.