S2000 really can be dangerous
Originally Posted by YoZUpZ,Oct 17 2007, 07:34 AM
So you shifted (or released the clutch) in the middle of the turn? The first time I got sideways was when I shifted hard from 1st to second on an onramp...
...and it was dry... what I learned? never shift hard in a steep turn... or remotely hard in a turn if its wet... (Rev matching helps a lot too)
...and it was dry... what I learned? never shift hard in a steep turn... or remotely hard in a turn if its wet... (Rev matching helps a lot too)
you missed the point of my post, which was this: if you learn how to drive stick on a more forgiving car, you can minimize the chances of this happening. i'm willing to bet $10 that he didn't rev-match and that's why his car spun out. learn on a beater, get good at driving stick, then roll around on a $30,000 set of wheels. that was my point.
anyway, glad you're ok!
anyway, glad you're ok!
Originally Posted by INTJ,Oct 17 2007, 02:38 PM
You guys are killing me! He admitted his error. He won't do that again.
1. It is a sports car with neutral handling.
2. The AP1 has serious dynamics that are amplified with too much input by the driver.
3. AP2 has reduced dynamics that can still be dangerous with reduced traction (conditions or tires, or abrupt driving).
The important part in all of this is an alert driver, who reacts smoothly, and maintains the vehicle.
1. It is a sports car with neutral handling.
2. The AP1 has serious dynamics that are amplified with too much input by the driver.
3. AP2 has reduced dynamics that can still be dangerous with reduced traction (conditions or tires, or abrupt driving).
The important part in all of this is an alert driver, who reacts smoothly, and maintains the vehicle.
I agree 100%, but simply saying that the car has neutral handling might be a little too much of an over-simplification. A car that has dead neutral handling in steady state cornering will not have dead neutral handling under power or breaking, and with most vehicles the handling bias changes with increasing speeds. Just as an example, on a cloverleaf an XJ-40 LWB is dead neutral under light acceleration, while an early AP1 will tend to slide the back tires first.Early AP1's (MY00-01) with OEM tires, standard alignment, and standard tire pressures, on well warmed tires, walk a fine line between neutral and over steer in steady state cornering at lower speeds, and an increasing amount of oversteer with increasing speed, due at least in part to all the lift in the rear. It's easy to get the early cars to push on corner entry, but the front tires are glued to the road when you're on the throttle, and the car doesn't push or slide the front and rear tires equally (which is the definition of neutral). The rear tires ALWAYS work at larger slip angles than the front tires, unless you overload the front tires with heavy trail brake. Compared to every other sports car I've ever driven, including those with swing axles and/or rear mounted engines, the early S2000 has a stronger bias toward oversteer.
The MY02-03 cars (bone stock) are closer to dead neutral in steady state cornering, but it's still hard to get the front tires to push on corner exit, and for the handling to be neutral, front and rear slip angles have to be equal.
The only AP2's I've driven have been MY04 cars, and I haven't driven enough '04 cars to be sure, but they strike me as being substantially more neutral in their handling, especially on corner exit (where it matters most).
So while I agree that the S2000 has (more or less) neutral handling, the conditions under which the handling is neutral is pretty narrow, particularly with the earliest cars.
Consider that we don't see people sliding off the road sideways the way they would in a car that produced equal slip angles front and rear. What we constantly see is the result of the rear tires generating larger slip angles and the resulting loss of grip at the rear taking place first. That's over steer, not neutral steer.
Yeah it happens but try to get the clutch fully engaged (pedal all the way out) before making the turn and it helps to plant your right left leg on the rest to better be able to feather the gas that's what it's for just my .02







