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What went wrong here?
Disclaimer: I'm super new to MT and driving anything with more power than a 2000 Subaru Forester. :o
Second day of driving my Box I did EXACTLY what this guy did while making a left hand turn (driving hard obviously). What went wrong? I think I lost traction when I shifted into second while turning or something? Came close to wrecking - wound up 180 in wrong direction finally stopped next to the other cars turning left in the opposing target lane.. Super embarrassing too! :confused: |
I did not watch the video but sounds like you upset the balance of the car mid-turn. If downshift to a lower gear that excessively raises rpms when you reengage the clutch, it's known as "engine braking" & has same effect as pulling the hand parking brake.
As you prepare to enter a turn complete all braking & shifting while the car & steering wheel are pointing straight. This allows you to go slower into the turn & faster out, which is the fastest overall strategy & incidentally safer if that's important to you.Get you & your Box out to a autocross where you can practice car control while only risking killing some cones. Boxster is one of the best street vehicles ever made to do what you direct it to do. Unfortunately if you give the wrong directions it follows those also without prejudice. ;) |
You are driving a rear wheel drive car with a decent amount of power. If you apply too much power during a turn, you can break the rear tires loose and lose traction. When this happens, the back end will step out. If you don't know how to correct for it, the rear end will come around and you will spin out, which is what happened to you.
As BYprodriver said, time to learn some car control. |
I spun my Boxster in the first week. At that time I was in my third season of autocross, previous car was FWD.
If there's any moisture on the ground and you're sloppy with the throttle it can break loose without warning. The one downside to mid-engine car...the whole polar inertia thing... |
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I spun out on a Boxster test drive accelerating slightly in a left turn from a stop in rain, all this in the middle of downtown Chicago and ending up backwards.
I knew about apexes, when to slow down and accelerate but was still surprised I broke traction. Never drove a Mid Rear engine before though, I thought they would have more traction in the rear due to the weight being there. |
Thanks for the input - next step is to find somewhere local to get some training. I'm about 1:45 away from Sonoma Raceway.
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First off wow, the guy driving the Porsche at about 7:40 in that video... If it ain't broke enough, keep driving it so it brakes more! That must have been a police chase.
Anyhow, I spun my Boxster at my first DE at Thunderhill. I was entering a sharp left turn and downshifted too early into 2nd gear. Traction broke and the whole car went for a spin. No damage and no harm thankfully, but I certainly learned where the limit is on how hard one can turn in these cars. This was about three months into owning my Boxster. I recommend taking it to a safer track list Thunderhill where there is nothing but green on most sides of the track, rather than Sear's Point where there are lots of tires and guard walls to slam into. AX is another great option for learning the ropes on your P-car. |
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And always drive with your second most favorite organ.................not your first. TO |
You tried to turn and accelerate at the same time beyond the limit of rear tire traction. In other words, you broke the rear tires loose by accelerating hard in a corner.
Then, once the car started to rotate beyond the turn, you got behind in your steering and did not react fast enough to "catch it". Net result, you spun it around. Nothing that a few track days can't teach. :) And the 911 isn't worse, it is just "different". The Boxster rotates much easier and faster but is generally easy to catch using a majority of steering inputs. That's why people say that its "easier" to drive at the limit. But you need quick hands in a Boxster or you'll spin. On the other hand, the 911 rotates more slowly but that rear end has a lot of momentum so it takes a lot more effort/skill to halt the rotation and reverse it and usually requires both steering and throttle inputs to do it right (which is technically more difficult than just steering alone). |
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Every turn consists of two phases, the first, when you turn the steering wheel in and the second when you unwind thenwheel the wheel back to center. Any hard application of throttle as you are turning in and you will spin. That's what you see most of the guys in the video doing. Now, as you start to turn the wheel back to center you can apply increasing amounts of throttle all the way to full throttLe, as you come closer and closer to getting the steering wheel back to center. Try this. Go to a safe parking lot on a wet or snowy day and as you make a slow speed turn, around 25-30 mph, hit the gas hard as you turn the wheel. You will spin. Do the same turn but this time, wait until you are unwinding the wheel and progressivel hit the gas hard as you keep unwinding the wheel. The rear tires will spin up but the car will not spin, ,you will exit the corner with the car perfectly straight, in control and the whole maneuver should not should not induce panic at all, in fact, once you get the hang of it, it's a blast. Be safe. |
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Thx San rensho, byprodriver, and thstone for the insight!
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(off to work... can't stick on this forum... hurts) |
Honestly.....where you are at now....go to your local indoor/outdoor carting place and spend some money. Learn about what it feels like to loose and gain control in a very safe environment. It's a place where you can drive *as fast as you can* and not cost yourself and arm and a leg if something goes wrong. You need to learn the fundamentals of car control. You're driving a Porsche. Respect that.
My own '02 BS is having issues with cold weather where the PSM goes to sleep until the car is warm. I thought the warning light was a bunch of BS. I was wrong. Came around a nice fun corner in the wet last weekend and gunned it and I lost the car. It took me *spinning* the wheel...not a correction...but full on spinning the wheel once in each direction until I managed to get her under control....right as I came into view to a police car. Oye. Lesson 1032 learned in life. Learn car control. It's a biggie. |
Join your local PCA or SCCA and run as many autocross events as you can. Great way to learn car control, improve as a driver and meet some great folks. Usually at the PCA events there are instructors that can REALLY help you learn your cars limits. Don't take this the wrong way but just your asking on this forum what happened tells me you are NOT ready to go out on a road course at high speed. Get as many AX's under your belt at relatively slow speed and learn your car, suspension, brakes and tires plus yourself ! Then go out and get on a road course. Ultimately the goal is to have fun, be safe, become a better driver and above all return home in one piece :D
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Don't know how chilly it gets in Oakdale, CA, this time of year, but if you're riding on summer performance tires, temperature can definitely be a factor as well. When shopping for tires on tirerack.com, with these tires you'll typically note the warning: "Like all summer tires, it is not intended to be driven in near-freezing temperatures, through snow or on ice."
I learned this lesson the hard way going out to grab some take-out. It was cool, low-40s or high 30s, which generally hadn't been a problem for me---I knew to take it a bit easier under such circumstances. This time, however, it started to rain gently shortly after I left home. Cold + Wet + summer performance tires is a REALLY bad combo! :eek: |
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And the spin itself is not like a pendulus 911 spin where you end up on the side of the road. More like a top pulled from a string. I'm glad I spun it that first week of ownership it made me respect that the throttle and take it EASY when the ground was damp and cold. |
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This hasn't been my experience with the Boxster at all. There have been a couple of times when I have got on the gas too soon coming out of a corner or cloverleaf and the back end has come loose. A slight lift, a quick counter-steer, and it snaps back to straight again, ready for the throttle. I've never had a car that corrects from an oversteer slide as smoothly and easily as this one. Maybe this is because I am running Michelin Pilot Sport A/S Plus tires, although they are 5 seasons old and getting pretty hard.
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Boxster is one of the best street vehicles ever made to do what you direct it to do. Unfortunately if you give the wrong directions it follows those also without prejudice. All modern vehicles are designed to go straight thru steering axis inclination & proper castor settings. Therefore the moment I feel I have lost control I release my grip on the steering wheel allowing it to spin freely between my hands til it self centers & the car is going straight again. Now I can make minimal steering input to regain intended direction of travel. |
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While on a road course you're learning to be smooth with long pauses (straights) in between. With autocross you're trying to get from A to B as quickly as possible while upsetting the balance of the car as little as possible...as Randy Pobst (professional driver who is a big autocrosser) once said "its basically connecting a series of power slides". Sometimes smoother is better sometimes its not because you don't have a long straight to make up deficit. But the point is that most real-world situations where you need to save your hide will more closely resemble something you've done a hundred times in autocross than nailing the esses at your local track. And because of the number of turns and corners are so much higher in autocross you learn to manage the brake with much more practice. One of the great things about autocrossing the Boxster is that you see that this isn't a "just a cheap Porsche" but perhaps the best braking paired with the most neutral handling you can get out of any road car no matter the price. When people talk down this car right away I know they don't know much about actual driving. Most of the time they just know plenty about buying cars. The next best thing is to do some karting. Find an "arrive and drive" place near you. This will help you "see the course", I think driving is more about what you do with your eyes than what you do with hands and feets. Everything follows from the eyes. Plus you'll get more seat time than in autocross or that once in a while track day. I was karting before I could ride a bicycle. Those were the days, someone else paying for your fun... |
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Scott, were you shifting from 1st to 2nd while turning, or from 3rd to 2nd? |
AXs and DEs are great for getting seat time; for learning a course or a new car. They will NOT erase incorrect driving techniques.
IMHO, it's best to learn proper high speed driving techniques from a qualified instructor. Once one learns the basics, then any further driving events aid the driver in mastering these techniques. And just to be CLEAR, drive with your brain.................. TO p.s. I thought alangning's post was a hoot! :D |
I also think some reading is mandatory. You have to understand the physics that define how a car responds to your inputs.
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Lots of good advice here. I would strongly recommend learning at on an auto-x course where the consequences of a spin "usually" aren't that bad. When you get to the point where you are intensionally shifting weight to the front to start rotation, and then catching it with throttle application to shift weight rearward, you have arrived.
That said, you should have alignment checked to make sure nothing is off. Make sure you have at least zero toe to slight toe-in at the rear, otherwise it can be very twitchy. Also make sure the rear camber is good. I like to run about -2.5 degrees at the rear. Make sure nothing is binding with the sway bar that would make the spring rate suddenly go up, and finally check that the tires have decent tread matching front to rear. Some tires (Dunlop ZI's for instance) are noted for loosing traction when they get to the very end of their tread life. |
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So it was close enough to totally get my attention - RWD is nothing like my AWD subbie! (: ;) |
True... if you think about what you did:
1. Fast acceleration - presuming you're at 6400 rpm, you're near redline, and likely got there pretty quickly. ;) Physically, that throws a lot of weight onto the rear tires (where it should be for good traction in a RWD car). 2. Upshifting - you've now thrown the weight OFF of the back tires as there's less acceleration. Not as bad as braking, but you now don't have the same force pushing down on the rear tires. 3. Turning the wheel - you've also now got a bit MORE grip on the fronts since you've upshifted and shifted the weight off the rear tires. Hitting the accelerator again in this state is a recipe for disaster. Not only will the rear end break loose easier when you hit the throttle, the additional grip the fronts have will send you spinning easier, since they're not pointed in a straight line. That's my estimation, anyway. Those with more track experience, feel free to correct me! :) |
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