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Sweepers and oversteer
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10-01-2009, 06:54 PM
Post: #16
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Lots of good thoughts expressed here.
A couple of things I would point out. 1. Fast out - It is always more important to come out of a turn faster than it is to go into a turn faster. It's basic statistics, we all know it but we all get jacked up and come flying in and have to get on the brakes. That's slow. It's fun... but slow. Basic statistics also says the fastest times out there will come from the guy who holds the pedal down the longest! If you back out of the throttle to get through a turn, that is slower than accelerating all the way through. Also, smooth transitions. Yanking the wheel on AWD upsets the suspension and encourages traction to break and rear end to come around. 2. Set up - Great points above on alignment, tire pressures and suspension adjustments. It is key to remember that you need to adjust everything to the way YOU drive the car. Some like it tighter and some looser. You need to experiment and that means ...seat time, seat time, seat time. Great specific car sites can give you a place to start on alignment or set up but it's got to fit your driving style. I am amazed how many times I have seen it... it's true. You can learn to drive a slow car fast with raw driving talent and "the knack".... but with out practice and seat time, you can't drive a fast car fast. YOU have a fast car. It'll take some time but you'll surprise yourself how quick you can be if you keep driving every chance you can and tweaking the set up (especially the tire pressures... that's the contact patch where the rubber meets the road. Tire pressures are the fine tuners but if you do everything right on suspension and alignment and screw up the tire pressures, the power doesn't get to the ground where you need it.) Nice machine BTW! Hope to see you run it at BMW event!
Ted E. Bayer - Hillclimbing Understeer is when you hit the mountain with the front of the car and oversteer is when you hit the mountain with the rear of the car. Horsepower is how fast you hit the mountain, torque is how far you move the mountain. |
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12-26-2009, 02:22 PM
Post: #17
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RE: Sweepers and oversteer
i agree with sam, sounds like a pretty good setup to me you just need to get the driving down....AWD IMO is more like driving a FWD than a RWD...adding throttle will help reduce over steer as weight shifts to the rear tires...in subarjew this often will result in basically a 4 wheel 'drift'...aka high slip angle...key is to learn how to balance it so its fast and not oversteering/understeering too much...i say try tweaking your driving style to a little more FWD...aka brake hard into the corner (maybe a bit slower than you think) and as as you turn in add throttle hard and hold it all the way out of the corner.
that would be the 'extreme' fwd way, so maybe somewhere between there and what you do now would get you where you want to be otherwise i say keep your sway setup and start tweaking alignment and tire pressure and you should be able to get it where you want. 1995 Volvo 850 Turbo Wagon Manual Swap - C70 Wheels RICA tune - 16T @ 17psi Bikerack |
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Hope to see you run it at BMW event!



