Smoother ride with VSA off.
09-12-2004, 06:00 PM
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Smoother ride with VSA off.
OK so I purchased some 19's some time ago and couldnt get the car to ride like butter, balance, road force, hubcentrics etc. I have only recently started driving with VSA off and I have noticed quite honestly significant ride improvement, must be me but with VSA off there are no vibrations with my particular 19's while with it on their are some virbations I can definately feel. This all occurs anywhere in the 60-70mph area.
09-12-2004, 06:13 PM
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Originally Posted by E!ntertainment
OK so I purchased some 19's some time ago and couldnt get the car to ride like butter, balance, road force, hubcentrics etc. I have only recently started driving with VSA off and I have noticed quite honestly significant ride improvement, must be me but with VSA off there are no vibrations with my particular 19's while with it on their are some virbations I can definately feel. This all occurs anywhere in the 60-70mph area.
09-12-2004, 06:19 PM
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Originally Posted by ravi
or maybe u think its smoother (mental thinking or something)
i only noticed a difference in power when VSA is off.....better response from pedal
i only noticed a difference in power when VSA is off.....better response from pedal
even my girlfriend complained when driving and she also noticed it.
09-12-2004, 06:32 PM
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Ravi, you said you noticed an increase pedal response with VSA off? A slight bit or a noticeable difference? Is there a reason why power increases with it off? Thanks!!
Joey
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09-12-2004, 06:54 PM
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Ravi, you said you noticed an increase pedal response with VSA off? A slight bit or a noticeable difference? Is there a reason why power increases with it off? Thanks!!
someone will probably elaborate. i read this on a previous post pertaining to launching it w/ VSA off.
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09-12-2004, 09:28 PM
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It doesn't. VSA only affects engine power output and braking. If it ever goes active, the indicator on the dash will turn on. Under normal driving it doesn't do anything.
09-12-2004, 10:20 PM
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Originally Posted by wolftag
It doesn't. VSA only affects engine power output and braking. If it ever goes active, the indicator on the dash will turn on. Under normal driving it doesn't do anything.
09-12-2004, 10:48 PM
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Originally Posted by RTDyer
Read the manual, Dudes!! 
If you replace your tires with larger tires, which have the same rolling radius and roatations per mile, it will not affect the VSA. I know the manual says "same size and type" but as long as you maintain the rotation per mile criteria, there should be no problem.
If there were, then multitudes of people who have done a +1 or even a +2 or +3 would have their VSA light on all of the time.
09-12-2004, 11:40 PM
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Lucy, you got some 'splaining to do...
Originally Posted by Ron A
If you replace your tires with larger tires, which have the same rolling radius and roatations per mile, it will not affect the VSA.
How does the engine know if the tires have a different rolling radius and therefore number of rotations per mile? And the answer cannot be GPS.
Mike
09-13-2004, 12:02 AM
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If its only 1 tire, it knows be because its different from the other 3 
It uses the wheel speed sensors for the ABS system.
Actually, its unfortunate that the TL doesn't do a clever trick that my Olds Alero did -- if one wheel was rotating at a different speed, it activated a tire pressure alarm. All the information needed is there. This little trick saved me some grief 2 times.
It uses the wheel speed sensors for the ABS system. Actually, its unfortunate that the TL doesn't do a clever trick that my Olds Alero did -- if one wheel was rotating at a different speed, it activated a tire pressure alarm. All the information needed is there. This little trick saved me some grief 2 times.
09-13-2004, 01:15 AM
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Originally Posted by RTDyer
Read the manual, Dudes!!
That's a load of
With the A-Spec package the wheels are larger, yet there are no ECU or VSA modifications. Possibily if the rear tires were much larger than the fronts (or visa versa) it would cause a problem but that won't be the case.
09-13-2004, 01:18 AM
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Originally Posted by svtmike
How does the engine know if the tires have a different rolling radius and therefore number of rotations per mile? And the answer cannot be GPS.
Mike
As long as all 4 tires are the same size you will not have a problem. The VSA kicks in when one tires is moving at a different speed than the others, if they are different sizes the likely hood of the VSA engaging is greatly increased.
09-13-2004, 07:36 AM
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Originally Posted by mrsteve
As long as all 4 tires are the same size you will not have a problem. The VSA kicks in when one tires is moving at a different speed than the others, if they are different sizes the likely hood of the VSA engaging is greatly increased.
Well I guess that's my dumb question for the day.
Mike
09-13-2004, 09:54 AM
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Why do you drive with the VSA off. There is no benifit to driving with it off except when you accelerating rapidly and could get some wheel slip. Other than that the VSA is passive. you could put 13's from a yugo on the car and the ride is going to be shitty but not cause of the VSA. Like the post below the only thing that matters as far as the VSA is conserned is the wheel speed sensors for the ABS. They measure rotation and how fast and then the computer decides what wheels need to brake what ones are skidding and how much gas to allow if you have the pedal mashed. This all happens before the PUCKER factor takes place.
09-13-2004, 11:01 AM
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Originally Posted by rescueswimmer
Why do you drive with the VSA off. There is no benifit to driving with it off except when you accelerating rapidly and could get some wheel slip. Other than that the VSA is passive. you could put 13's from a yugo on the car and the ride is going to be shitty but not cause of the VSA. Like the post below the only thing that matters as far as the VSA is conserned is the wheel speed sensors for the ABS. They measure rotation and how fast and then the computer decides what wheels need to brake what ones are skidding and how much gas to allow if you have the pedal mashed. This all happens before the PUCKER factor takes place.
If its less virbation then Im driving with if off, is that ok with you?
09-13-2004, 12:05 PM
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Originally Posted by E!ntertainment
AS i stated before and now aagain, its smoother and significantly less vibration with MY PARTICULAR application, thats why If its less virbation then Im driving with if off, is that ok with you?
If its less virbation then Im driving with if off, is that ok with you?If you get a vibration with the VSA on something is wrong with your car. A wheel speed sensor, yaw sensor, lateral g sensor, etc.
The VSA is a passive system and will have no affect on normal day to day driving in fair conditions.
If your car, and its VSA system, is in perfect condition... any "smoother" operation is a complete placebo effect.
09-13-2004, 12:24 PM
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I'll take my placebo causing non steering wheel shaking effect gladly with a smile.
With the VSA it shakes but just a little, done the back to back comparison enough I stop counting.
With the VSA it shakes but just a little, done the back to back comparison enough I stop counting.
09-13-2004, 12:30 PM
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Originally Posted by mrsteve
That's a load of
With the A-Spec package the wheels are larger, yet there are no ECU or VSA modifications. Possibily if the rear tires were much larger than the fronts (or visa versa) it would cause a problem but that won't be the case.
With the A-Spec package the wheels are larger, yet there are no ECU or VSA modifications. Possibily if the rear tires were much larger than the fronts (or visa versa) it would cause a problem but that won't be the case.
09-13-2004, 01:04 PM
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Originally Posted by Casper42
But with the A-spec Package the actual Tire is a thinner or low profile tire. Reading these forums people have said time and time again, that the final diameter of the wheel and tire is the same between the OEM Rims and the A-Spec Rims.
Which is how it should always be with plus size tires.
09-13-2004, 01:37 PM
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Originally Posted by acugirl
Would driving with VSA off improve the jerking on rough surfaces in curves?
No, VSA would actually save you (or attempt to save you) should that jerking be severe and cause you to spin the tail of the car out.
Upgrading to an aftermarket rear sway bar and/or upgrading the tires would help.
09-14-2004, 07:37 AM
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Let me make a point that I drove the car for about 1000 miles with the stock wheel/tire and the car didnt vibrate at all with the VSA on or off, so I dont believe there is something wrong with the car.
09-16-2004, 07:15 PM
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Originally Posted by E!ntertainment
Let me make a point that I drove the car for about 1000 miles with the stock wheel/tire and the car didnt vibrate at all with the VSA on or off, so I dont believe there is something wrong with the car.
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