Trouble with the Curve

[ecolulz]

A rear wheel drive is always going to understeer a bit no matter what the performance suspension compared to a front wheel drive car more common these days that can have severe oversteer.

I don't even know where to go with this. As has been discussed above, nearly every car is set up for steady-state understeer for soccer-mom reasons. FWD cars suffer from power-on understeer, RWD cars CAN suffer from power-on oversteer, though even the same car will behave differently in different situations.

A+ for overconfidence though.

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[Herr_Poopschitz]

A+ for overconfidence though.

:lol:

 

[Old 5 Oh]

Our cars will understeer a bit. Going downhill, braking, no power, they will understeer a lot. You can certainly get the Neros to wash out under conditions like that. Had you come back and hit that curve at the same speed going uphill with power on, you would have very likely had a different experience.

Moral of the story: don't push an unknown road too hard downhill. It can be very unforgiving. It is MUCH easier to recover if you overcook a turn entry while going uphill. Gravity is your friend in that case.

Glad the only thing upset was your cool!

 

[Grim_Reaper]

I know it's asking a lot, but did you happen to notice whether the stability control system was doing anything during all of this?

I'll add road crown and road camber and the possibility of front suspension bottoming to your list of contributing causes.


Norm

Hmm I didn't notice to be honest. Wish I would have.


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[Grim_Reaper]

Was it really hot and your tires got overheated greasy/slippery? Cold or wet on the curve but not everywhere else?

You say you were following your dad. Does he have better tires than you? Your car should out-corner a 2014, everything else equal.

He has the 2014 CS with the better tires.


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[Grim_Reaper]

Was it really hot and your tires got overheated greasy/slippery? Cold or wet on the curve but not everywhere else?

You say you were following your dad. Does he have better tires than you? Your car should out-corner a 2014, everything else equal.

Also there was no wetness on the road and I would say my tires were normal temp due to 80* weather and the time of day 2pm.


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[Grim_Reaper]

These are the tires going on it for SEMA
Hankook K120 Ventus 285/30/20 Hankook K120 EVO 2 / 305/25/20


Planning on getting some high performance tires put on the stock wheels for any track times.


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[Norm Peterson]

I am more sure than you Norm that I have it correct. I am 65 and have owned since new 4 vehicles with FWD and 8 with RWD. ALL the FWD ones oversteered, not severely but they did. All the RWD vehicles, including a 1998 Corvette understeered not severely but they did.

If you are specifically talking about lift-throttle oversteer, yes, that variation of oversteer can occur in FWD cars (as well as in RWD and even AWD). But that's not the intended meaning of "oversteer" as used conversationally without further description.

Perhaps you could list your oversteering FWD cars with a description of the specific driving situations that brought out the oversteer in them. Also include what you were doing with the controls at the time, and list all non-stock tweaks and modifications that were made to the cars, their suspensions, or their wheels/tires. There is a point to this, and for now that's all I'm going to say.


Norm

 

[arrow94]

Our cars will understeer a bit. Going downhill, braking, no power, they will understeer a lot. You can certainly get the Neros to wash out under conditions like that. Had you come back and hit that curve at the same speed going uphill with power on, you would have very likely had a different experience.

Moral of the story: don't push an unknown road too hard downhill. It can be very unforgiving. It is MUCH easier to recover if you overcook a turn entry while going uphill. Gravity is your friend in that case.

Glad the only thing upset was your cool!

This exactly! :clap2::first:

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