o.k guys as my profile states i have an auto 2K... its lowered on K-sport coilovers and as of late i'm starting to notice my car sliding around turns excessively i have to replce both my inner and outter tie rods, could that be a possible reason for sliding??? tires are goodyears in front and potenza's in rear, future suspension mods FSTB n RSB... can the suspension gurus help me out

 

Are you getting excessive body roll? Assuming your on the Ksports, you dont have hardly any. And by sliding, are you referring to oversteer? The back end coming out a little? Or do you mean losing traction sideways all 4 corners?

 

back end coming out

 

could be one of a zillion things.

main things I'd think of are:
1. SLOW DOWN. If you're sliding around turns on public roads, then you're going WAY too fast. Slow down before you wreck the car and/or hurt someone.

2. your tires are getting old. as they get older, they lose grip.

3. mismatched tires will cause strange handling issues as one end will stick better than the other.

 

Goodyears and Potenzas doesn't tell us much... either you've got 5 degrees of camber or your rear tires are horrible...

But yeah maybe slow down a bit if you're sliding unexpectedly..

 

the sliding doesn't come at higher speeds, it could be going around a 35mph ramp at 40mph... im almost a year on my coilovers, my wilding out days are over... im not the most knowledgeable on suspension but i dont think i have any camber in the rear... there are times the car feels like im getting body roll but passengers and friends who are driving also says the opposite

 

Easy thing to do is swap the fronts to the rear (putting the goodyears in the back and potenza's in the front). See if that tells you anything.

Edit: Also the first easiest thing to do is lower the psi in both rear tires and see if that dose anything.

 

hmm i see the point, lowering PSI in 5 mins

 

plz update us whenver you do it.

 

o.k lowered the psi, just woke up so ima try driving now...

 

wasnt snap oversteer an issue with the 4th n 5th gen rear beam setup, which being a heavy fwd, i had that happen to me in a 5th gen, a rsb really made a difference.

 

Snap oversteer was never an issue. I have an RSB and I have only gotten oversteer on a few occasions, all of which it was very progressive and controllable... then again if I were a n00b it might have been scary and I'd come and complain about it on the org...

 

all im saying is a rsb deff makes a difference when it comes to predictablity of the rear of the 4th and 5th gens. perhaps snap oversteeer was the wrong term, i suppose rear end sloop words it better, tho that sounds more like a mediacl condition than anything.i try and tune my cars for a neutal balance and ive tried alot of different suspension setups. just trying to share my experiences

 

... what? 4th gens i know for sure do not oversteer or do any "rear end sloop" stock and you know where the rear is going to be... an rsb just makes it so the rear takes more force...and is why the rear will kick out more (oversteer).

 

well i just got back from work and i must say that there is a very slight difference as far as sliding, it helped a bit but didnt solve the issue, also everytime i go over potholes on the right front wheel it feels as though i have blown shocks but last i check it was o.k could a bad wheel bearing and tie rods be the issue?...

 

Is it more noticeable when the turn has bumps in it or does it also do it on smooth curves? If I were you, I would take off the RSB and see what happens. I wouldn't think it impossible for the K-Sports to have blown by now, so I would keep an eye on them as well. How low are you on the K-Sports? I would think that not having enough suspension travel could result in some unexpected behaviors....

 

Yea a bad wheel bearing in the rear could cause that. I think its the tires in the rear that are bad tho.

Also when did this start to happen? Out of the blue?

Check it to see if you have any caster/camber problems. If it comes where your just clueses just strap a cam on while ure turning and see whats going on.

 

it happens also on smooth corners... In the rear my fender is about at the top of the tires if not slightly tucking

 

yea it kinda started out the blue, i was also thinking tires but i have a set of 19's on the way so i'll see what the new tires do

 

no, snap oversteer is really not a concern for most. I've actually attempted to snap oversteer (with RSB) to prove a point, and couldn't really make it happen except under very excessive trail braking...extremely aggressive...on an autocross course.

I beg to differ....and I know for a fact that I run a neutral/very mild oversteer setup. I can slide all four wheels at once if I try.

you mentioned Potenzas in the rear. Which potenzas? If they're a hard compound, you're going to get some slip, especially if you run a soft compound up front. More specificity on what MODEL of tire (and tire pressures) you run will help with diagnosis.

It's also possible that you're just feeling the shift of the rear beam - which, btw, is off-center if you haven't realigned the beam since slamming the car that low.

being that low you have limited spring/shock travel...could also be causing handling issues.

5th gens "best" ride height for performance is about 1.5" drop in the front and 1 - 1.5" in the rear. The lower you go after that, the more the handling performance will progressively get worse....

 

i'll take your word for it, seeing that you spend a lot of time with suspension..... i'll have someone check the rear beam.... i have the factory 17" potenza's from SE model (IDK specific model) i really dont give a damn about ride comfort, however sliding i care about, what i also care about is you giving me the info on rims weight in wheels/tires section ... you kno imma bug ya but thanks ill have everything checked out soon

 

commenting on irish's last answer- the car just recently started sliding about a month n a half ago, so i kno its not just my drop thats causing me to slide

 

Blown front struts or bent rear struts could cause "loose" behavior. So could too much lowering that lets the outside rear suspension hit its bump stop while cornering. K-Sport reliability has been, ummmm, a bit suspect, for whatever that's worth.

Rear looseness does not sound like something that steering tierod replacement will fix. Either the rear wheels are actually steering - understand that by design the twist beam axle does steer slightly. But yours may be steering more than slightly or in the wrong direction, perhaps due to bad rear suspension bushings including those in the Scott-Russell link (that lateral contraption that attaches to the beam). Or you have too much load transfer happening too quickly at the back (and not enough quickly enough up front).

If you're already loose, a RSB will only make matters worse and a FSTB won't help any. Fix the problem before thinking about mods.

Edit - the original Potenzas were RE92. Not bad dry weather tires, so I would not expect them to make the car loose in the dry. But if the rears have only minimal tread left and the roads are anything more than damp (and especially with good new rubber up front) - prepare to hang on because life can suddenly get a bit exciting.


Norm

 

^^^ agreed also... i sure hope its not the K-sports i really dont want to go through the hassle of sending them out, but if so be it

 

You may have missed my last edit

 

lol, that must be the prob, after dropping my GF off not too long ago i thought i'd be very observative of the cars reaction around turns, what i've noticed its that the rear is WAYYY less responsive than the front, its as if it turns seconds after the front, so while driving straight i shugged the steering wheel left and right continuously only to notice that the rear of the car was late to every turn hence the slide... NB- yes it was damp also

 

Id get new tires. Those RE92's arent bad, in terms of sidewall flex, but traction straight out SUCKS. I had about 85,000kms on mine before i replaced them (50K miles). I honestly could take a corner past 25-30kmh in the rain, it just slid, i had zero traction on hills, the rear was kinda unpredictable, especially with the RSB. The back end seemed like it stayed way flatter then the front, so it just kinda slid on ice so to speak. got new tires, and its gone. Obviously if you take a corner at a very high speed, im sure youd loose the whole car.

Anyways, if your tires are low on tread, id say get new tires. Tires are as important as brakes, think about it, you only have 4 contact patches holding your car to the ground, no matter how good your brakes, suspension, engine is, if you cant get traction, everything is useless.