Applying power in a corner...
#1
05-28-2007 | 03:41 PM
Applying power in a corner...
For perspective, I'm coming from a motorcycle perspective, track wise, and have absolutely no track experience in a car let alone a P-car.
So my curiosity is this. On a bike, when you're leaned over in a corner, if you drop power, you have a very high risk of "high siding" the bike, which would send you on an all expenses paid flight across the track, or into the nearest wall face first. Or, when you're leaned in a corner, you can apply power and let the rear hang out a bit to cut the turn even sharper as long as you are smooth.
Can this analogy be similarly tied to a 911 in a corner? I ask because I keep hearing people talking about losing the car in a corner, and I'm trying to create a frame of reference in my mind, in hopes of having a better understanding of the cars characteristics.
So my curiosity is this. On a bike, when you're leaned over in a corner, if you drop power, you have a very high risk of "high siding" the bike, which would send you on an all expenses paid flight across the track, or into the nearest wall face first. Or, when you're leaned in a corner, you can apply power and let the rear hang out a bit to cut the turn even sharper as long as you are smooth.
Can this analogy be similarly tied to a 911 in a corner? I ask because I keep hearing people talking about losing the car in a corner, and I'm trying to create a frame of reference in my mind, in hopes of having a better understanding of the cars characteristics.
#2
05-28-2007 | 03:43 PM
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Originally Posted by chokeu2
For perspective, I'm coming from a motorcycle perspective, track wise, and have absolutely no track experience in a car let alone a P-car.
So my curiosity is this. On a bike, when you're leaned over in a corner, if you drop power, you have a very high risk of "high siding" the bike, which would send you on an all expenses paid flight across the track, or into the nearest wall face first. Or, when you're leaned in a corner, you can apply power and let the rear hang out a bit to cut the turn even sharper as long as you are smooth.
Can this analogy be similarly tied to a 911 in a corner? I ask because I keep hearing people talking about losing the car in a corner, and I'm trying to create a frame of reference in my mind, in hopes of having a better understanding of the cars characteristics.
So my curiosity is this. On a bike, when you're leaned over in a corner, if you drop power, you have a very high risk of "high siding" the bike, which would send you on an all expenses paid flight across the track, or into the nearest wall face first. Or, when you're leaned in a corner, you can apply power and let the rear hang out a bit to cut the turn even sharper as long as you are smooth.
Can this analogy be similarly tied to a 911 in a corner? I ask because I keep hearing people talking about losing the car in a corner, and I'm trying to create a frame of reference in my mind, in hopes of having a better understanding of the cars characteristics.
Same principles, however 2wd and 4wd make a difference.
Smooth in Smooth out.
#4
05-28-2007 | 04:01 PM
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Originally Posted by chokeu2
Makes perfect sense.
I've yet to get behind the whell of a 4 yet. So I've no frame of reference. Curious though.
I've yet to get behind the whell of a 4 yet. So I've no frame of reference. Curious though.
But the laws of physics remain the same. we just tweek them a bit.
#5
05-28-2007 | 06:49 PM
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Originally Posted by chokeu2
For perspective, I'm coming from a motorcycle perspective, track wise, and have absolutely no track experience in a car let alone a P-car.
So my curiosity is this. On a bike, when you're leaned over in a corner, if you drop power, you have a very high risk of "high siding" the bike, which would send you on an all expenses paid flight across the track, or into the nearest wall face first. Or, when you're leaned in a corner, you can apply power and let the rear hang out a bit to cut the turn even sharper as long as you are smooth.
Can this analogy be similarly tied to a 911 in a corner? I ask because I keep hearing people talking about losing the car in a corner, and I'm trying to create a frame of reference in my mind, in hopes of having a better understanding of the cars characteristics.
So my curiosity is this. On a bike, when you're leaned over in a corner, if you drop power, you have a very high risk of "high siding" the bike, which would send you on an all expenses paid flight across the track, or into the nearest wall face first. Or, when you're leaned in a corner, you can apply power and let the rear hang out a bit to cut the turn even sharper as long as you are smooth.
Can this analogy be similarly tied to a 911 in a corner? I ask because I keep hearing people talking about losing the car in a corner, and I'm trying to create a frame of reference in my mind, in hopes of having a better understanding of the cars characteristics.
lean angle for a bike is steering angle in a car. as you apply the power in a car you need to unwind the steering wheel. same as in a bike ou can't be full throttle at full lean. in contrast the bike stand up as you gradually apply power but with a car you need to unwind the wheel yourself.
what you described as sliding the rear to tighten your line is usually done by throttle steering.
#7
05-28-2007 | 09:13 PM
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Originally Posted by chokeu2
For perspective, I'm coming from a motorcycle perspective, track wise, and have absolutely no track experience in a car let alone a P-car.
So my curiosity is this. On a bike, when you're leaned over in a corner, if you drop power, you have a very high risk of "high siding" the bike, which would send you on an all expenses paid flight across the track, or into the nearest wall face first. Or, when you're leaned in a corner, you can apply power and let the rear hang out a bit to cut the turn even sharper as long as you are smooth.
Can this analogy be similarly tied to a 911 in a corner? I ask because I keep hearing people talking about losing the car in a corner, and I'm trying to create a frame of reference in my mind, in hopes of having a better understanding of the cars characteristics.
So my curiosity is this. On a bike, when you're leaned over in a corner, if you drop power, you have a very high risk of "high siding" the bike, which would send you on an all expenses paid flight across the track, or into the nearest wall face first. Or, when you're leaned in a corner, you can apply power and let the rear hang out a bit to cut the turn even sharper as long as you are smooth.
Can this analogy be similarly tied to a 911 in a corner? I ask because I keep hearing people talking about losing the car in a corner, and I'm trying to create a frame of reference in my mind, in hopes of having a better understanding of the cars characteristics.
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#9
05-28-2007 | 09:31 PM
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Here's some good info. It's subaru-based, but driving tips are driving tips.
http://www.spdusa.com/newpage41.htm
http://www.spdusa.com/newpage41.htm
#10
05-28-2007 | 10:03 PM
I'm happy to say, "I get it!"
One of the worst things you can do on a bike, leaned over is to make a change, and let off the throttle. Sounds the same here. Good explanation Doc and Island!
One of the worst things you can do on a bike, leaned over is to make a change, and let off the throttle. Sounds the same here. Good explanation Doc and Island!
#11
05-28-2007 | 10:50 PM
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Attend the Porsche Sports Driving Experience at Baraber Motorsports Park in Birmingham or start doing some AutoX and DE's in your area with your car. That is the best way to learn to handle a car.
#15
05-29-2007 | 10:17 AM
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IslandMD explained it properly. The beauty of a 911 IS that it is tail heavy. When braking, the weight transfer becomes close to 50\50, when accelerating the weight goes to the rear and applies massive traction to the already heavy tail. unfortunately when the car is decellerating at the wrong place in a turn (lifting to much or braking) it upsets the balance. The rear of the car lightens and reduces the hold at the back then the laws of inertia take over with the back wanting to be at the front
As others have stated, take a good DE course pertaining to a 911. Skippy School or Porsche Experience if possible.
Enjoy your car!
tw
As others have stated, take a good DE course pertaining to a 911. Skippy School or Porsche Experience if possible.
Enjoy your car!
tw