06-29-2016, 01:35 PM | #4257 |
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Don't think about how much time gain there is going from stock tires to something sticky, you'll end up really frustrated if you throw the new tires on and don't go much faster and destroy the tires. Overdriving RE71Rs will wear them out VERY quickly (especially plowing into corners way too fast), so I'd suggest figuring out how to find the line between underdriving and overdriving now on the stock tires.
How are you comparing your times between autocross events?
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06-29-2016, 01:53 PM | #4258 |
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I didn't even attempt to race on my stock tires. But after switching from Michelin Pilot Super Sports, I gained a good 2 seconds at least. My skills have improved during that time as well, but the the RE71R's are amazing tires.
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06-29-2016, 02:05 PM | #4259 | |
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I'd suggest moving to the RE71s only if you feel you've reached your limit with the stock tires. I wish I spent more time fixing my driving style with the stocks.
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06-29-2016, 04:08 PM | #4260 | |
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http://www.conechaser.com/driver/qingrui.(jim).zhu |
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06-29-2016, 04:35 PM | #4261 |
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My brother and I autocrossed my bone-stock FRS recently and, while we were way down on grip with the stock tires, we both thought the car's balance was great.
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06-29-2016, 04:39 PM | #4262 |
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@slyphen why not try the swaybar first, then the tires. Cheaper experiment too...
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06-29-2016, 04:51 PM | #4263 | |
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Have you had instructors drive your car? How do your times compare to their times in your car? |
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06-29-2016, 04:55 PM | #4264 | |
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Dont get me wrong, im not saying its completely the tire's thats holding me back. I myself could probably get another 2-3 sec with some more seat time as i get better as a driver. |
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06-29-2016, 05:11 PM | #4265 |
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As a natural overdriver myself, I know it's important to get that in check first. Good tires have a way of covering up mistakes. Crappy tires tend to highlight them.
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06-29-2016, 05:45 PM | #4266 | |
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But yeah, I'd wear out whatever tires you have on there presently. Extra repetition/frsutration when fighting an uphill battle will help with technique a lot. Your hands will slow down and smooth out and it'll force you to be very deliberate with your inputs. Might even start changing your lines because you'll start to see how car position matters to eek out a respectable time out of the lesser equipment. IMO you'll be in a better spot to move on to the better tires once you stop gaining time (on index, imperfect as it is) on the event podium folk.
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06-29-2016, 05:45 PM | #4267 |
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No doubt! I spun in every event since Event 3 trying to find the limit. last event i crossed the finish line sideways praying not to hit the timing equipment. I've corrected a lot bad habits because of these shitty tires and i'm getting a really tired of them. last event going through wide sweepers, i couldn't apply 100% throttle cuz the back end keep swinging out. i kept it at the edge at about 80% throttle, losing a lot of time.
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06-29-2016, 07:19 PM | #4268 |
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I went ahead and calculated the thrust curves between the old car and new car.
I eyeballed the torque readings from the dyno chart and converted from nM into Lb Ft. Not 100% clean since the thrust chart spreadsheet I used goes in 250rpm increments while the dyno from Subaru is in 400rpm increments, but I think close enough. I included the datasheet for review. On 225/45s the new car is about 3mph slower at the top of 2nd gear. I went ahead and added a plot for using 235/45/17s which gives it about another 1mph. |
06-29-2016, 07:30 PM | #4269 | |
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Having owned both, the FRS is a little faster but not enough to separate classes with. The springs and swaybars help, but they're making the car better at what it already is good at instead of fixing some type of shortcoming of the car such as the torque dip, more mph in 2nd, more camber, wider wheels, etc. The advantage was smaller than I had expected once I drove the FRS. Anyway, I don't care what they do with the classes, IMO they're close enough to be in the same class with or without the parts. But letting the BRZ run the TRD parts or splitting classes and letting non-TRD FRS/BRZs in a single DS class is fine too. |
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06-29-2016, 07:52 PM | #4270 | |
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Oh, and say hello to Nathan with the white 3000GT and tell him I told you to get a ride along with him. He's quick, even in that big boat
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