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V8 S13
Joined: Nov 2003
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Originally Posted by Ostrich
bumpsteer is an internet mechanic term, at least to the s13s it is
drive my car its lower than nuts, it has no bump steer
drive my car its lower than nuts, it has no bump steer
AND/OR
your tie rods (from pivot to pivot) are not the exact same length as your LCA's (from pivot to pivot) then your car does indeed have bumpsteer.
However imperceptable it may be, it is there.
In fact designing a properly functioning sportscar suspension with ackerman and good camber angles, WITHOUT BUMPSTEER is nearly IMPOSSIBLE.
-Sean
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At a given day and a given circumstance, you think you have a limit. And you then go for this limit, and you touch the limit, and you think "okay, this is the limit". As soon as you touch this limit, something happens in you so that you can go a little bit further. With your mind power, your determination, your instinct and your experience as well, you can fly very high. - Ayrton Senna
At a given day and a given circumstance, you think you have a limit. And you then go for this limit, and you touch the limit, and you think "okay, this is the limit". As soon as you touch this limit, something happens in you so that you can go a little bit further. With your mind power, your determination, your instinct and your experience as well, you can fly very high. - Ayrton Senna
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Originally Posted by FreeThinker
In fact designing a properly functioning sportscar suspension with ackerman and good camber angles, WITHOUT BUMPSTEER is nearly IMPOSSIBLE.
-Sean
-Sean
There is a good series of articles in previous SCCs about suspension geometry.
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lifelong learner
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then why don't i feel it makin a difference at all ????
wtf
what im' saying is:
while it may be a problem, i dont' feel it at all when driving my car, that is lowered more than any s13 i know of except for teddys'. and he doesn't feel a problem either.
i think its something that internet mechanics make it to be a bigger deal than it acutally is, especially on s13s
wtf
what im' saying is:
while it may be a problem, i dont' feel it at all when driving my car, that is lowered more than any s13 i know of except for teddys'. and he doesn't feel a problem either.
i think its something that internet mechanics make it to be a bigger deal than it acutally is, especially on s13s
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rest in peace tim.
Advocate for the People's Republic of Awesome
rest in peace tim.
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I have my d2's maxed in the rear and slightly lower in the front and i noticed what many refer to as "bumpsteer" after i dunked the shit out of it. i don't really notice it anymore and i think the fact that you're used to driving slammed s13's is the reason you are unaware of the existence of bumpsteer. I also am now rocking the SPLPARTS bumpsteer-reducing endlinks so i get none whatsoever!!
is your car really that low? i mean, you have aero and it is still on so it can't be that bad. or is it?
is your car really that low? i mean, you have aero and it is still on so it can't be that bad. or is it?
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Greasymule, how do you like the SPL bumpsteer reducing tie rod ends?
The bumpsteer geometry trade off that is made on the S13 is that the inner pivot points for the steering linkage and the control arm are located roughly the same distance out from the center of the car. This is the best case compromise for a macpherson strut setup that can't have all of the angles and lengths equal.
The reason that bumpsteer is minimized in most coilover shod cars is that the spring rate is so high. If the LCA/steering linkage barely deflects, then the effect is minimized.
If the S13 had zero bumpsteer, you'd be able to adjust the ride height without having to get an alignment.
The bumpsteer geometry trade off that is made on the S13 is that the inner pivot points for the steering linkage and the control arm are located roughly the same distance out from the center of the car. This is the best case compromise for a macpherson strut setup that can't have all of the angles and lengths equal.
The reason that bumpsteer is minimized in most coilover shod cars is that the spring rate is so high. If the LCA/steering linkage barely deflects, then the effect is minimized.
If the S13 had zero bumpsteer, you'd be able to adjust the ride height without having to get an alignment.
