275's all around!

Poodles

I play with fire
Jul 22, 2006
16,757
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No...

Maybe for experienced drivers and not people that have never been in a skid in their life...

you and me /= all the other sheep on the road
 

suprabad

Coitus Non Circum
Jul 12, 2005
1,796
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Down Like A Clown Charley Brown
Poodles;942927 said:
No...

Maybe for experienced drivers and not people that have never been in a skid in their life...

you and me /= all the other sheep on the road

No?

I have a feeling I'm gonna be sorry I asked but:

you and me /= all the other sheep on the road...Would you mind breaking this down for me?


:icon_conf
 

BorHor

2JZ-GZE
Jan 10, 2006
6,181
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San Jose, CA
I think what he is trying to get at is.. Unless you oversteer all the time and know how to react, it is freaking scary and usually a bad ending from reacting wrong. Under steer on the other hand you can generally get out of much much easier usually buy just letting off the power.
 

suprabad

Coitus Non Circum
Jul 12, 2005
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Down Like A Clown Charley Brown
BorHor;942994 said:
I think what he is trying to get at is.. Unless you oversteer all the time and know how to react, it is freaking scary and usually a bad ending from reacting wrong. Under steer on the other hand you can generally get out of much much easier usually buy just letting off the power.


If I may paraphrase your post for clarification:

If you are a rookie who doesn't know to modulate rather than lift the throttle during an over steer situation, than it's better to limit yourself to slow corner entry speeds, thereby not killing yourself or anyone else...

did I get that 'bout right?

Actually, every car has at least a slight amount of corner entry understeer, (although on properly set up car it's almost imperceptible). This happens because it takes a finite amount of time for the elastic defomation of the tire to occur and to begin to generate some slip angle after the wheel has been turned to initiate a change of direction.


:icon_bigg
 

chopstickz

New Member
Dec 3, 2005
227
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SoCal
wow those are really nice! why did you need the spare tire last time anyways? hah how much did those wheels cost....
 

A-to-the-J

Panda™ and Pre-89 Gracer™
Feb 19, 2006
1,080
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Anaheim/West Covina, CA
FullNelson;942803 said:
why are the fronts looking streched and the rears look stuffed?

how does it feel driving? how balanced does it feel, does it throw the ass out, or feel like it needs a larger tire out back?
as stated...two different tires. front's are direzza's, rear's are the run flat's.

chopstickz;943063 said:
wow those are really nice! why did you need the spare tire last time anyways? hah how much did those wheels cost....
thanks. i needed it because i still had my old wheels and got a nail in my tire and had to ride on them for another few days. i picked up the wheels for cheap! :naughty:
 

FullNelson

New Member
Sep 17, 2007
574
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Coastal Georgia
yeah i saw that. but i couldnt help thinking that if they were both 275s they would look a little bit closer to having the same profile. but any who, how is the understeer/oversteer balance of them?
 

KeithH

New Member
Mar 31, 2005
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Portland, OR
WOAH! Oversteer... Understeer...

You clowns are just drag racing anyway. There are no turns. :)

Just having a little fun - standard disclaimer before someone get's their panties in a bunch.
 

Dan_Gyoba

Turbo Swapper
Aug 9, 2007
1,836
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www.gyoba.com
Poodles;943057 said:
Make a super twitchy car that oversteers and watch the class action lawsuits roll in.
What? Is Porsche being sued? :)

Understeer is more predictable, and easier to recover from, but either one can cause you to wreck your car. Understeer is easier to blame on the driver though. ;)

Of course a more neutral stance will allow you to get the most out of the car, but that changes with the tires and road conditions. Because of this, practically all production cars are built with a bias towards understeer, since this is the more predictable skid condition.
 

suprabad

Coitus Non Circum
Jul 12, 2005
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^^^^^
True.
However, unless you are a squid with no skills (in which case you should get a Prius and go to your Vegan cooking class), my earlier statement holds true.

Understeer=scary,
too much oversteer=scary,
neutral=good,
almost neutral w/ slight oversteer at traction limits=best.
 

Wiisass

Supramania Contributor
Yeah, that's really not right. In real terms and not just what people think from whatever driving experience they have. Understeer is a stable condition. Oversteer is unstable. Neutral is good, but will never happen. Neutral with limit oversteer is also unstable and even if the driver can keep it under control it is slower than limit understeer.

You guys are just thinking about terminal conditions, meaning understeer where you have zero front traction or oversteer where you spin out, but that's not what those terms really mean. Understeer is when you need to give the car more steering input than would normally be needed in a given turn. This is why the amount of steering angle needed to negotiate a turn at 25mph will be different than the steering angle needed to negotiate the turn at 50mph. This is called the understeer gradient of the car and unless something is screwed up, every car is going to have this.

There could be an oversteer gradient, but that would just end up causing a lot of problems. And just like understeer, oversteer is when you put in less steering angle than would be needed to take a turn. This does not mean you're in a full lock drift going around a bend. This will be slower through a turn at the limit of the tires because all your available traction is being used up. Once power is applied, you will be just spinning tires rather than acceleration. It can be useful in certain situations, but just because you have an understeer car does not mean that the car will never see an oversteer condition.


edit: and about the tires. I guess they really are 275s in the front. Those look a lot better on the wheels than the rears. The bulge on the rears just makes it look like it's going have sloppy sidewalls due to the wide tire on the smaller wheel. But the fronts look like it might not be as bad due to the way the tire is constructed.

And as far as comparing tire sizes without even mentioning wheel sizes, it's pointless. A 245 on a 7" wide wheel will have a totally different feel than a 245 on an 8" wheel or a 9" wheel. Not to mention the million other variables that will make different tire sizes feel different.
Tim
 

A-to-the-J

Panda™ and Pre-89 Gracer™
Feb 19, 2006
1,080
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38
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Anaheim/West Covina, CA
Wiisass;943917 said:
and about the tires. I guess they really are 275s in the front. Those look a lot better on the wheels than the rears. The bulge on the rears just makes it look like it's going have sloppy sidewalls due to the wide tire on the smaller wheel. But the fronts look like it might not be as bad due to the way the tire is constructed.

i agree that the front's look better, i would have gotten the Direzza's on all 4, but my buddy only had 2 of them for the 18's. I had to take the Runflat's. but I'm not really complaining too much, it still has really good grip! I took it to the canyons this weekend and it's a lot better than my old 235/45-17's. next thing would probably be, coilovers or bilstein's w/ springs. The Tokico Blues and Eibach Pro Kit's are good, just not stiff enough for me. plus, there's a big transition feel from daily driving to canyon carving.