nop it's not snow... i am in cali, so no snow here.

now the background. my gs is totally stock engine wise, no exhuast, intake, tc, or lsd. handling wise i have a lot though. tein HA set to 1 finger gap front and rear. front stb, lcb, 19" (245/35/19 and 275/30/19).

now the problem is when i go up driveways at an angle by turning right up the driveway. when inside the car, the front wheels get on, but then i will hear some sound before the car jerks up the driveway

so i asked my gf to do the same and i watch from the side. to my surprise, when the car goes up the driveway, after the front wheels are on, since it's turning right into the driveway, the right rear wheel will get lifted UP from the floor quite a bit, to the point it's off the ground. when i press on the gas, the wheel will spin like crazy, but the left wheel does NOT spin at all.

so the question, is that normal? caused by the lsd? no way to "correct" the problem?

for reference, if i got straight up of course there is no problem. and if i do the turn from the left, i also do NOT have that problem. it's only when i turn right into the driveway and when the right rear wheel got lifted up from the grounf

 

The GS has an open differential, which means that ALL the torque is (unfortunately) transferred to the wheel with the least amount of traction. I don't know why your VSC/TRAC isn't activating, though. Not that it would matter since it doesn't route torque to a wheel with traction, just attempts to stop the one that is spinning.

I bet it didn't do it when your suspension was stock. More wheel travel might have left the wheel in contact with the ground..........

 

I had a problem like that with my Audi.. But mine was really bad since my coilovers were tight as heck.. Like of example when I had to change the front tire and I'd jack up the car while I was jacking it up the the rear wheel would start to lift off the ground too.. I'd have both wheels off the ground with the jack towards the front. You see, that's probably your problem.. The coilovers are too tight and all 4 corners don't want to give.. Watch, loosen them up and raise your car about 1/2-3/4" and that problem will probably disappear.

 

ah gotcha, so its "normal" and it's probably my coilover huh? i was thinking about travel distance of my coilover too but i wasn't really sure. maybe i will give it a try by raising the car by an inch (!!!) JUST FOR TESTING. this situation doesn't really bother me, jus wanna make sure my lsd or whatever isn't acting up

but yes, when it does that, the vsc does kicks in and flashes all the time. didn't beep though

 

Rominl,
I think the swaybars were your most recent suspension mod and that along with stiffer springs took you over the limit. Also if you had LSD you would not have the tire spin "like crazy" but it "will" still spin the tire slightly if you are turning up the driveway and turn the wheel sharply to the right at the same time. Both situations can be thought of as NORMAL.

On FWD racecars they make the rear swaybars super stiff to help minimize understeer. In autocross and road racing it's typical to see FWD cars lifting up the inner wheel off the ground in some corners.

 

I didn't think you had an LSD. The stock car has an open diff.

 

Normal??? Nah, normal cars wouldn't do that... Our cars are not normal... Therefore we have problems like these... But when you mod you have to the good with the not so good... And sometimes it's terrible.. Look at my car, 02 GS that's 7months old... New tranny, new computer....

 

this is perfectly NORMAL. any stock rear wheel drive car WILL has this same problem, when you get on the drive way at an angle, depend on your angle, one of your wheel will loose traction. With a stock differential, both wheels have equal power, meaning, the wheel with less traction or in mid air will start to free spin.

Stock E-slip control will not activate after 1/2 sec of slipping, so it will not come on if this happen quickly.

does not matter you have sway or not, if the wheel is off the ground, it will free spin. If you have a limited slip (LSD) then you won't have this problem.

The principle apply to anything goin' on wheels. This happen easily on rear drive car, but can happen on front wheel drive car too (more rare, due the location of the wheels, 2 front wheel on the drive way is less chance of slipping, compare to 3 wheels on the drive way and the 4th wheel still not on the drive way yet, and that 4th wheel has power on it. )

Anh

 

good catch about the sways. but it happened before i got the sways so it might make the problem "worse"

 

oh crap, see, now you guys know how much i know (read: don't know) about lsd and tc...

what's the difference between lsd and an open diff?

 

hehe take it easy bro, i accept that fact that you take some and you give some and hey, the problem on your car... you need to consider what you hit on the road

 

ah, awesome info man, maybe i should just FORCE myself to get the lsd

ok, so from what i have read so far, with the stock open diff at the back i will see the thing that's happening to my car now (spinning wheel), but if i get the trd lsd (let's say) then it will not have that problem anymore?

so i guess it's the difference how the open diff and the lsd works that create the two different results? and would that also explains why it happens when i turn right into driveway and not when turning left into driveway? or it's coz' of the angle i did that test it just happened that turning left it was ok?

 

but if i get the trd lsd (let's say) then it will not have that problem anymore? sure. maybe a quick slip, but the mechanial LSD acts very fast, it will quickly remove power from your slipping wheel and transfer it to the other one.

but you are not getting the LSD for this only reason are you? hee hee ;-)


"and would that also explains why it happens when i turn right into driveway and not when turning left into driveway? or it's coz' of the angle i did that test it just happened that turning left it was ok?"

I don't get this problem ever, only once in a while. it's the angle you are driving in, try to drive straight into the drive way, (if your front bumper allow, you won't see this problem) ;-) I get this slipping every quick turn or quick accelerate. (I have new Toyo TS1 285 tire.) I will go with supra LSD, I'll do a full write up when I get a chance to install it.


Anh

 

I really can't see a car with no mods going up a driveway and lifting a wheel off the ground... The only stock car i've seen do anything like that is my man's Vette when he goes into his driveway.. But his driveway is crazy steep almost like a 45 degree angle..

 

i guess my HA doesn't have too much travel distnace and i lowered it too much?