Bigretardhead

just wandering if anyone has problems with bump steer in their FC? how low would you have to go to make this a problem, and how might you go about fixing it in these cars? someone enlighten me please.

Syonyk

Check all your various mounts - transmission, rear differential. If they're broken, interesting things can happen.

-=Russ=-

RETed

If your car gets THAT low, you'll end up with too much negative camber in the rear.
It's stupid to be running around that low in the first place.


-Ted

Bigretardhead

oh, I think you mis understood syonyk. I'm not having any problems with it. I was just wandering if its easy to get to the point where it was a problem. but, assuming, from reading Ted's comment, it would have to be rediculously, and undriveably low to have any problems with bump steer in these cars. is this correct?

sicc83

iTrader: (1)

I have some decent bumpsteer with my TII. I'm dropped around 2" in the front on Tein Type Flex coilovers. I have my camber plates all the way negative too, so it wants to follow any crown in the road. To me it's not a big deal. I'm used to driving dumped cars and just dealing with it. Don't let ppl tell you it's unsafe(I know RETed will claim it is). If you know how to keep your hand(s) on the wheel it's pretty easy to keep the car straight.

I don't know how you would correct bumpsteer in an FC since there isn't much room to move the rack up. It's probably possible if you got creative.

RETed

You're stating some pretty scary things to do to an FC.
I would never recommend doing that.
How often do you change your front tires?
How long have you run your suspension like this?
Do you have the rears lowered this low too?
Or are you running it like some 60's muscle car with the rear end high in the air?


The easy was it to run spacers on the steering ball joint.


-Ted

RotaryEvolution

iTrader: (30)

i would have to check the clearances but i believe it wouldn't take much to make some aluminum lift plates to raise the rack up, i would be more concerned with getting the camber/caster within spec and how that is done without compromising the integrity of the suspension.

sicc83

iTrader: (1)

Yeah...like I said RETed has a problem with everything. As I said before, I know what I'm doing and don't need to explain anything to you. Thanks for offering your opinion though!

RotaryEvolution

iTrader: (30)

well Ted likes cars that are functional while you obviously go for the


i like both so i tend to mix it up and take the best of both worlds, a little more effort but worth it in the end!

sicc83

iTrader: (1)

Whatever makes you guys feel better about yourselves.

RotaryEvolution

iTrader: (30)

actually the bump steer in my truck is probably 10 times worse than your FC, it is a s-10 lifted 9" with some seriously biased worn tires on the front but as a truck it is not made for street driving and the tires are about to be replaced soon since i have been using it as my DD but my FC was built as a sportscar and i would prefer to keep it that way, Ted has the right idea about not hacking your car but it is all personal preference, i am ust suggestion everyone do as they want because they probably will no matter what anyone sais anyways.

RETed

You're lucky you don't have a 20B installed.
You can't shim the steering rack higher in that case.


-Ted

gotrotors?

Are you on this forum just to start flame battles/fights or what? Grow up.

RotaryEvolution

iTrader: (30)

well he was defending his point, you can't blame him for that even if the majority of people do not agree with it.

sicc83

iTrader: (1)

I have 5 other cars, all lowered. So I have experience with this stuff as well. It all comes down to personal preferance(sp?) when you're talking about suspension. Some ppl want their cars so act as tame as the did from the factory, but handle better. Some(like me) will sacrafice drivability for performance and looks. I'm not telling anyone they should or shouldn't do something to their car, just offering my experience to help them out.

Back to the topic, now that I think about it, the rack probably wouldn't need to move much to cure bumpsteer issues unless the car was lowered beyond drivability. I would try it myself, but I'm not that **** about the bumpsteer thing. Has anyone on here tried this? I have seen a lot of guys in japan running spacers on the balljoint. That might be an easier fix, but it seems like it might sacrafice some strength in that area.

gotrotors?

Its how he worded it that bothered me

"whatever makes you guys feel better about yourselves"



its kinda....ignorant.




*shrug* whatever

Bigretardhead

how exactly would you put a spacer on the ball joint in these cars?

I'm used to AE86 corollas and old Z's, where you just bolt a spacer between the strut casing and the control arm, but FC's are a lot different...

or, the steering rack thing seems like it would be pretty easy.

what you described is not bump steer though. just simply following any crown in the road, is much different from what bump steer is. bump steer will occur when you hit a bump....the change in suspension geometry from hitting the bump will change the toe angle of the front tires, causing the steering wheel to jerk, and also, the handling characteristics of the car will change, depending on how toe is effected in the particular vehicle. so, yes, it can be dangerous. and yes, its not good for performance. its not good to just "deal with it".

sicc83

iTrader: (1)

As I stated, I do have bumpsteer as a result of the 2" drop. I also mentioned the road crown problem as a side effect of the negative camber.

No, bumpsteer is not unsafe. It's no more unsafe than driving a lowered car at all. I agree that it isn't good for performance. If my car was a track car I'd put an effort into fixing the "problem". For a street car it is fine to "just deal with it".

Bigretardhead

oh, I see. I should have read more carefully...

and, yeah, I guess if you never push your car hard at all, then there's no need to worry. but when you get near the car's cornering limits, you can't say bump steer isn't dangerous then.

sicc83

iTrader: (1)

If you're getting near the cars handling limits on the street, that in itsself is unsafe. So, yeah for a track car it would be an issue to be taken care of.

djSL

iTrader: (5)

Well, Yes. I just revived a long dead topic. However, I figured it was better to do than litter the forum with another one. I have searched 3 pages of responses and this one was the most related and responded to. For those more experienced with the FC chassis and suspension, what could cause excessive bumpsteer in a stock suspension FC? Moreover, what can be done to eliminate it? Thanks in advance.

Acesanugal

iTrader: (5)

Replace your dampers and springs. Eliminate the dtss.
:-)

Sent from my ECU using the Check Engine Light.

djSL

iTrader: (5)

The weird part is the springs and dampers seem fine. The only after market modification is that the power steering was removed by the previous owner.


DTSS Bushings will be removed.