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#295 | |
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#296 | |
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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 [ame]https://www.youtube.com/watch?v=t7Azl-drqMk&&start=420[/ame] 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.
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#298 | |
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#299 | |
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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. |
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Or inducing even more at the wrong time. Cars for the general public are generally designed with understeer as the first reaction of an inexperienced driver is to lift when things start going wrong and lifting corrects understeer however in most cases it just makes oversteer worse.
Everyone should seek out the biggest, unused parking lot they can find and wait for rain and go practice these drills of inducing under and oversteer and learning how to correct. It's the same in the dry but happens at a much slower speed in the wet. |
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[ame]https://www.youtube.com/watch?v=9zNPFcn3pAw&t=63s[/ame] With that much power to weight on such a short wheelbase, understeer is going to be there by design, even if the RR setup may necessitate it. As an Elise owner, I think you may find this quote ironic: Quote:
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#302 | ||
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Kinda like Chris Harris in this 86 video. [ame]https://www.youtube.com/watch?v=romf-G6CZ7g[/ame] http://racetrackdriving.com/driving-...ttle-steering/ Quote:
http://racetrackdriving.com/driving-...ttle-steering/
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#304 |
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Meh. If the lap times are there that's all that matters. Flaws = character. The fun is in learning the machine's personality. Can do that with an old Beetle just as easily as with an Atom.
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Remember the Arial Atom is a transverse mid engine car. The engine is between the front and rear axles. Not exactly as mid as a Cayman, but far closer to it than the rear-mounted, inline 911. If it isn't a mid engine then neither was the original NSX. Arial Atoms: Transverse I4 ![]() https://bringatrailer.com/listing/2007-ariel-atom-2-3/ Transverse V8 Atom ![]() ![]() NSX ![]() 911 ![]() Cayman ![]()
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#307 |
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MR-transverse>RR-transverse>MR-long>RR-long
Get the front-to-rear stickiness worked out and you have a decent platform. Maybe all that it takes to get the Atom to play nicely is to tinker with wheel widths.
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