Front End Drift
Joined: Oct 2000
Posts: 9,210
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From: WA
Originally posted by GJW
I got the car up to 130mph and the car definately lost some stability at that speed. ...Any other comments on top speed reached in your s2k?
I got the car up to 130mph and the car definately lost some stability at that speed. ...Any other comments on top speed reached in your s2k?
http://www.s2000online.com/forums/showthre...p?threadid=7036
Pose the question in a separate thread elsewhere to get discussiom.
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Registered User
Joined: May 2001
Posts: 18
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From: San Diego
[/B][/QUOTE]
Sounds to me like you arn't braking enough and coming in too hot. Slow in fast out as was said above.
[/B][/QUOTE]
Actually I'm not coming in that hot and this happens weather it's a 90 degree turn or a long sweeping 300 degree bend. The understeer does not show itself until I'm half way through the corner. All I have to do is apply a bit more power during the apex of the curve and it will inevitably happen sometimes in addition to (to a lesser degree) some oversteer. Especially on long sweeping turns. I have been trying to get the understeer to turn into a slight oversteer to take some of the pressure off of the front tires but even if I punch it starting with an RPM of greater than 7k the front still tends to slide out a bit if I'm not coming out of the turn when I punch it.
I think I might just get a swaybar so that I can reduce the very slight roll in the front end. Of the two, Understeer and Oversteer, I'd rather have Oversteer because I feel like I have a bit more control over it under predictable circumstances and as long as I stay off the brakes.
Sounds to me like you arn't braking enough and coming in too hot. Slow in fast out as was said above.
[/B][/QUOTE]
Actually I'm not coming in that hot and this happens weather it's a 90 degree turn or a long sweeping 300 degree bend. The understeer does not show itself until I'm half way through the corner. All I have to do is apply a bit more power during the apex of the curve and it will inevitably happen sometimes in addition to (to a lesser degree) some oversteer. Especially on long sweeping turns. I have been trying to get the understeer to turn into a slight oversteer to take some of the pressure off of the front tires but even if I punch it starting with an RPM of greater than 7k the front still tends to slide out a bit if I'm not coming out of the turn when I punch it.
I think I might just get a swaybar so that I can reduce the very slight roll in the front end. Of the two, Understeer and Oversteer, I'd rather have Oversteer because I feel like I have a bit more control over it under predictable circumstances and as long as I stay off the brakes.
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Joined: Oct 2000
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From: Chicago
I have this suggestion for MadDog, 2turkey and anyone else who thinks their car understeers... go to a local autocross and have one of the most experienced racers try your car and ask them if it understeers. I can tell you the answer right now.
Even with a bigger front swaybar, I still rarely get understeer on the S02s, and NEVER get any understeer on the Hoosiers.
I understand that these guys aren't looking for a driving lesson, but the hardest thing for inexperienced drivers to recognize is that 50% of a car's handling dynamic is created by the driver's inputs. You can make the loosest car understeer, or the tightest car oversteer if you make the right (or in this case wrong) inputs.
Simply put, the S2000 is by nature NOT an understeering car. If someone is experiencing excessive understeer it is being caused by one of three things:
-Improper aligment... too much rear toe-in (although our car has 1/4" toe in and max rear negative camber and still oversteers.)
-Improper tyre pressures...
-Bad driving habits...
That's it. Period. End of story. I've driven several S2000's and they all have good balance with a constant tendancy toward oversteer. The only other possiblity is that your car might be 'substandard' from the factory. Being hand-built there has to be some sort of variation in the chassis... maybe some of them suck?
Even with a bigger front swaybar, I still rarely get understeer on the S02s, and NEVER get any understeer on the Hoosiers.
I understand that these guys aren't looking for a driving lesson, but the hardest thing for inexperienced drivers to recognize is that 50% of a car's handling dynamic is created by the driver's inputs. You can make the loosest car understeer, or the tightest car oversteer if you make the right (or in this case wrong) inputs.
Simply put, the S2000 is by nature NOT an understeering car. If someone is experiencing excessive understeer it is being caused by one of three things:
-Improper aligment... too much rear toe-in (although our car has 1/4" toe in and max rear negative camber and still oversteers.)
-Improper tyre pressures...
-Bad driving habits...
That's it. Period. End of story. I've driven several S2000's and they all have good balance with a constant tendancy toward oversteer. The only other possiblity is that your car might be 'substandard' from the factory. Being hand-built there has to be some sort of variation in the chassis... maybe some of them suck?
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Joined: Apr 2001
Posts: 8,601
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From: La Habra
I agree with the posters who suggest you can make ANY car understeer. Just enter a turn too hot for the grip.
One other note, if you want to be able to transition into a little oversteer (as in some tight Auto-X sections) you HAVE to be in VTEC. That is a lower gear than you might just run through a sweeper at 100+ MPH with.
One other note, if you want to be able to transition into a little oversteer (as in some tight Auto-X sections) you HAVE to be in VTEC. That is a lower gear than you might just run through a sweeper at 100+ MPH with.
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Joined: Oct 2000
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From: Montreal
One thing i have noticed is on the car though is that when you slowly apply the throttle, you first get an understeer "sensation" or a slight push for a brief moment, and then very quickly it transitions into neutral to oversteer...
Then again, it is only a sensation and doesn't bother me.
Either way, the car is definately balanced neutral to neutral slight oversteer.
Too hard to say what's going on in his case without being there.
[Edited by Sev on 05-31-2001 at 02:38 PM]
Then again, it is only a sensation and doesn't bother me.
Either way, the car is definately balanced neutral to neutral slight oversteer.
Too hard to say what's going on in his case without being there.
[Edited by Sev on 05-31-2001 at 02:38 PM]
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Joined: Oct 2000
Posts: 401
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From: Austin
This comes up every once and a while, and I have always answered the same way as cdelana and Jaison; the car does not understeer, but oversteers. Yes you can make the front wheels lose grip if you are too hot, but to me, that is a different issue. Remember the early reviews? No one complained of "Snap Understeer" did they?
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Joined: Nov 2000
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From: Melbourne!
[QUOTE]Originally posted by Jason Saini
[B]I have this suggestion for MadDog, 2turkey and anyone else who thinks their car understeers... go to a local autocross and have one of the most experienced racers try your car and ask them if it understeers.
[B]I have this suggestion for MadDog, 2turkey and anyone else who thinks their car understeers... go to a local autocross and have one of the most experienced racers try your car and ask them if it understeers.
Thread Starter
Registered User
Joined: May 2001
Posts: 18
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From: San Diego
OK-OK. The car definitely has some understeer. I have proved it by having an experienced Autox'r try my car out in addition to riding with me to prove it. He has driven other S2K's with out this problem so I can only assume that is does have something to do with the alignment. I have a doctors appointment setup for my baby this Wednesday to get an alignment. I'll let you know what happens after this Sunday's San Diego AutoX.
Cheers.
Cheers.
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What are your tire pressures? Put them back to 32 pounds cold all around to start with again. USE A CALIBRATED GUAGE!
Meat, Cdelena and Jason are all correct about the whys and wherefores of the handling dynamics of the car. It may very well be that the S2000 is not forgiving of your driving style. It is a demanding car to drive well but very rewarding when you do.
Meat, Cdelena and Jason are all correct about the whys and wherefores of the handling dynamics of the car. It may very well be that the S2000 is not forgiving of your driving style. It is a demanding car to drive well but very rewarding when you do.
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