ok so here is whats going on....i just got an alignment the other day toe is at .10 on both sides, caster is 4.11 and 4.36, and camber is at -1.3.

this is whats happening... well driving above about 80mph (love the autobahn!) if you are on the gas she will want to go to the left until you let off so i have to correct to the right. doesnt matter how hard on the gas you are on. could be a little or a lot, doesnt matter she will still do it. now when you let off the gas she will track straight.

what could be causing this?

my recent upgrades are 18x8 wheels with 225/40/18 tires, spherical control arm bushings, and delrin trailing control arm bushings. the alignment was after all of this.

i have a ttr upper motor mount and poly trans mounts. the mounts have been on the car awhile, maybe 6-7k miles. could these bushings be wearing out and letting the motor/tranny shift when u give it gas?

ANY ideas will help. i am also lowered on ARK DT-P coilovers. please help!

 

bump! need ideas!

 

Just sounds like torque steer. Most of the time cars only get power to one wheel when going in a straight line, therefore that side of the car will want to move ahead of the other side. That will make the car pull one way or the other

 

could be a possibility but i have a LSD so the power should be going to both wheels equally right?

 

bump

 

tire pull is likely too

 

would you recommend that i swap the front tires and see if it starts pulling to the right?

can you define tire pull?

 

i would cross rotate and recheck.

tires can wear into a pattern that lends itself to a inheriant pull or push in a direction

 

ok i will do that soon. btw i only have maybe 1000 miles on the tires.

 

that should make them similar tread depth which is good for troubleshooting. i have seen tires do this brand new due to a manufacturing issue.

 

ok so you definitely think it is tire related? if it is the tire being misshaped it wont do it while you are cruising? only when on the gas?

 

LSD doesn't mean both wheels get equal power. It just shifts power to the wheel with the most grip. Just cruising though, one wheel is most likely getting most of the power

 

yeah that makes sense. but if it was torque steer wouldnt it be more noticeable at lower speeds? i only really start to notice it at 80 mph or so. and it is constant. if i am only giving it a little gas it really isnt there. i would say around half throttle or more, even if i ease into it. i am not just slamming the gas

 

Only noticing it at 80 is strange but only noticing it at half throttle or more would be normal with torque steer. The more throttle you give it, the more torque you are gonna produce, therefore intensifying the effect of the torque steer

 

so a little update:

i went out yesterday to swap the front tires. after i took them off i figured i would check the suspension first and make sure all that was good. well i grabbed the drivers side end link and it was loose. the top nut was backed out a little. so i tightened it up thinking that was the problem so i decided not to swap the tires. drove it today and it is still doing the same thing.

so tomorrow i am going to swap the front tires and see where that gets more.

 

I swapped the two front tires and the pull followed. It now pulls to the right, but not as bad you can still tell it pulls though.

So is it safe to say that the tire is what is causing it?

 

Yes. It wouldn't be torque steer at 80 mph.

 

tire rotation time haha, she how it works then?

 

yeah i figured it wasnt. never heard of someone having torque steer at 80 mph.

i am sure that if i rotate the fronts to the back it will go away but then when i rotate the tires back the next time it will still pull again correct?

 

So the unfortunately part for you is that if you had the car aligned with severely worn tires, it's possible that the alignment will be a little bit off when you put new tires on. If you're obsessive like you, you would get an alignment.

I always align when I get new tires.

 

so i take it that you would recommend that i get 2 new tires then correct? i have probably around 1000 miles on them. the backs are still basically brand new.

 

id just live with it, if you cant then rotate them and when the fronts are done get new tires.

 

Different size tires, not a visible difference -- and it's made worse by the negative camber. If you set the camber at 0 I'll bet your problem will go away. And/or, rotate the tires until the problem stops. Note that the toe should really be set at 0 too, so any positive or negative toe will also make pulling worse. Oh yeah, if you're big and add a lot of weight to one side of the car, (since the toe and camber settings are usually done without you in the car) that can make a difference. Sometimes, adding weight to one side (depends on the springs) will load that strut and change the camber... Sometimes...

I usually arrange to sit in the car when they align things and I only weigh about 180.

I've had the same problem at various times with different tires, toe, and camber settings.

 

Are all the tire pressures good. I forgot to check them once after I did an alignment. It pulled every which way. Aired them up. And the car went straight with no problems.

 

I align mine with me in it, but we tried to see if there was a difference and it was really marginal. I guess 160 lbs doesn't make all that much difference to the alignment.