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Tracking / Autocross / HPDE / Drifting What these cars were built for! |
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07-22-2015, 10:59 AM | #29 | ||
rolling over my sidewall
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We recently did a test and tune at Grissom AFB and I had a ES national champ drive my car and sure as sh#@ he was having to control slip everywhere while I was busy plowing into turns - same exact car. The problem: Me. I was late on braking, and turn in and it wasn't unwinding the wheel as soon as I should have been so I was putting down throttle with the front tires like this \\ or an even steeper angle. Next event I took his advice and started getting quite a bit faster. As @Element Tuning said - work with an instructor. |
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07-22-2015, 02:08 PM | #30 | |
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@solidONE This is much more likely the issue than a spring rate change. Spring rates get you 1/10ths, not massive handling differences. The odds are that your technique was better during the improved sessions and not the car.
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07-22-2015, 03:37 PM | #31 | |
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07-22-2015, 03:49 PM | #32 |
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07-22-2015, 05:03 PM | #33 |
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If you're really chasing tenths, you need data logging. An instructor can give pointers, but until you see isolated data on different approaches to a specific section of track (without making other changes in previous sections) it's really just a crapshoot.
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07-22-2015, 05:57 PM | #34 | |
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07-22-2015, 11:15 PM | #35 | |
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We have a couple of guys starting to track and they will be running basically stock cars with upgraded brake fluid and oil coolers. They will probably stay that way until they're ready for their Time Trial licenses. Then, they will mildly mod for tenths within their class. These cars are awesome in stock form.
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07-22-2015, 11:49 PM | #36 | |
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The BRZ/FRS is a very safe and conservative car with a long wheelbase (longer than the Miata, S2000, and MR2) which means it's quite stable. Take advantage of it. Go out to 86CUP and drive. We all miss you. |
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07-26-2015, 02:08 AM | #37 |
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I found the balance, thank you camber plates. I feel like this is the car everyone else has been driving, it just took me ~$2k to unearth it. @DarkSunrise you are right, when it's neutral you decide what to do it happily responds. I've posted before that I don't love this car, that may actually be changing, rotating the car with throttle is a kind of magic. Lots of thoughts swirling around, I really need to process them before I shoot my mouth off. |
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07-27-2015, 11:13 PM | #38 | |
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07-28-2015, 09:43 AM | #39 | |
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[ame="https://www.youtube.com/watch?v=Z4snkUUolJ0"]High speed MotoGP cornering at 1000fps - Casey Stoner - Red Bull Moments - YouTube[/ame] The theory and science behind turning is identical. You need to stop looking at turning as "turning the steering wheel" and see it as "controlling weight transfers and force vectors". Unfortunately, this will not make sense to someone who is not has the requisite skill level on either a bike OR a car, unless you have a strong grasp of basic (high school/first year college) Newtonian physics. Break everything down into the most basic step you can. To a novice, this will be "turning the steering wheel left turns the car left/leaning left turns the bike left". To someone with a basic level of mastery, this will be "turning the steering wheel left forces a weight shift to the right/ steering right forces leaning to the left". Going another (smaller) step beyond that introduces the torques: "turning the steering wheel left causes a perpendicular torque on the chassis, which causes a weight shift to the right, which makes the car turn left/steering right forces a perpendicular torque which results in the bike leaning left, which ultimately forces the car to turn left (the force acts upon the bike in a direction identical to starting with your left arm pointed straight up toward the sky, and lowering your arm downward toward the ground in a motion that has you pointing straight left when you're halfway down).". I can continue breaking down what exactly is going on further, but you get the point. Think in force vectors. |
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07-28-2015, 11:39 AM | #40 | |
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We have videos of us from back in the day laying huge long black marks coming out of corners on our sport bikes on the street, what does that mean? That I'm suddenly Garry McCoy? |
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07-28-2015, 12:27 PM | #41 |
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That's why I don't do it anymore.
I haven't ridden since I binned at my last track day really nicely and ended up with Post Concussion Syndrome for about 3 months. By the time I got it put back together I sold it. |
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07-28-2015, 12:47 PM | #42 |
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Yep, that was back in 2007 (only 25!). My gait is still a bit off from the way I came down on my hip.
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