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Old 02-03-2019, 06:01 PM   #310
Tokay444
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Join Date: Feb 2016
Drives: 17 White 860. RCE Tarmac 2. RE-71RS
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Quote:
Originally Posted by TommyW View Post
Once they got things sorted out the platform worked well if the driver understood how to drive the car properly. There are nuances in handling just as in other cars. There are positives and negatives about the handling however a driver in a fairly modern 911 will be very fast around a racetrack if they understand the strengths and limitations..
Imagine how quick they’d be without the handicap.


Quote:
Originally Posted by Irace86.2.0 View Post
What I’m saying is that RWD cars tend to oversteer by losing traction in the rear. This can be a natural property of the setup and suspension or throttle application. Inducing oversteer with the accelerator is obviously easier or proportional to hp/kg.

Some cars may be setup to “steer with the pedal” with understeer as the default behavior, but oversteer with throttle application. The 86 is an example of this. Oversteer is easy to correct by letting off the gas, but not as much if the car always wants to understeer or even is neutral. Watch reviews of high powered vehicles and you will notice understeer (sometimes even too much understeer in the reviewer’s opinion) is prevalent, and it is probably designed that way:

Skip to 7:00


The Miata and Elise are on the same 90” wheelbase, whereas the Corvette is on a 106” wheelbase. The short wheelbase lends itself to less rotational inertia meaning it will change directions faster and easier. Add tons of power with a twitchy throttle to a short wheelbase car then that can also be a recipe for oversteer.
Quote:
Originally Posted by ZDan View Post
Oversteer is easy to INDUCE by letting off the gas.
Performance driving 101:
Getting ON the gas generally induces UNDERsteer.
Getting OFF the gas generally induces OVERsteer.

If you lift off the gas mid-corner near limits of adhesion, that will tend to point the car into the curve MORE. You have to modulate/feather the throttle and correct with countersteering. Getting on the gas in the same situation will push the car wide, away from the corner.

That's not to say that power-on oversteer isn't a thing. But not so much in a ~14 lb/hp FT86...

Countless drivers of particularly responsive rwd cars have found themselves in the weeds by lifting off the gas when they started to get a little oversteer.
My line tightens with throttle application, until the point of oversteer, and widens when throttle is reduced or let off, in my 86.
Your statements are quite generalized, and in many cases downright false.
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