Not sure if anyone can help, but last week, I put new tires on my 19" Champions (last set of tires were slashed). And I was driving home and touched a curb while turning in too sharp (no wheel or tire damage...but felt the bump), and whenever I drive and go WOT, the car feels unsteady. It almost feels like it is pulling left, then right and back and forth over and over again. If I accelerate normally, the car is straight as an arrow and feels stable up to 100 mph+. This feeling only happens when going WOT and on full boost....any suggestions? Alignment is the next step, but could it be anything else? Thanks.

I also inspected the tire and wheel and there is no damage at all. I am guessing the front is toe-ing out, but when I drive normal it feels fine.

 

that sounds a bit fishy...alignment???

 

are your tires up to temp? or ist his only AFTER the hit? i would check the suspension / alignment

 

New tires often times have a mold release compound residue. Take a while to burn it off.

It can be squirrely for a few miles until that time.

 

It only happens while going WOT whether the the tires are cold or fully heated up after many miles of driving. Whenever accelerating normally it is 100% fine and at high speeds, but once I hit the gas and it fully boosts, the steering wheel pulls left then right and back and forth kinda hard. The car feels extremely unsteady only under full boost..not at .1 to .7 bar, just at full boost.

 

i would go with mold release compound still on the tires... it usually takes about 500km ~300miles to burn off..UNLESS you are bringing them up to temp often enough to work it off

and if it is at all cold in your area, it will take much longer... i would just take some more time ti break in the rubber

 

My car was also darty under boost and it ended up being uneven tire pressure.

 

sorry for the off subject, but your tires were slashed? who? what? where? why? when?

 

Any time you bump a wheel like that, you take a chance on skewing the toe. I'd have the alignment checked even if you do find mismatched tire pressures. I'm not that far away and know the weather you've been experiencing... I was shocked to find my tire pressures 6# off about 2 weeks ago.

Mike

 

Yep, a few months back they were slashed by some coward ******* at a bar I was at.

https://www.6speedonline.com/forums/...=tires+slashed

Unfortunately I have not seen his girl around, so I haven't boned her yet! My day of redemption will come...

 

Sounds like mold release still on them. Bone the Girl he might bone you instead of the slash next time. Be careful of spite

Have you checked out the alignment since the incident?

 

Thanks Mike and King, I will check the pressures and get an alignment done. It is a very uncomfortable feeling while going under full boost.

 

Ahh yes now i remember the thread - your day shall cometh soon

 

my car is doing the same thing now
actually, its REALLY scarey
i was playing around with an m6 last night, and once i hit 1.1 bar (k24's), the car was all over the place

tire pressure was fine..

 

I completely forgot about this thread. Well, it turns out that my tire pressures were way off. I usually do 36f/44r and I had something like 25lbs on one front and 31 on the other, and the rears were in the mid 20lbs. I have checked the pressures many times and it is dead on and the car drives great.

As for your car Steve, you may want to check your alignment if your tire pressures are good.