Hi there!
I've replaced the stock rims with 17" rims and tyres (205/40/R17), lowered the car by 1.5" (Kingsprings) and wheels alignment. Then I have experienced some vibration when driving >100kmh. I assumed that the camber may caused this problem. Or anyone knows what caused the vibration. please help me.

Thanks,

Arik.

 

Alignment DOES NOT cause vibration. Your tires may be out of balance. I reccomend you re-balance your tires. Most tire dealers will re-balance your wheels for free if you are getting a vibration, and you bought the tires from them. Thats what you payed them for. If you're feeling the vibration in the steering wheel a front is most likely out of balance, if you feel it in your ass then it's probably a rear. Hope this helps

BTW: Welcome to HAN!!

 

i suspected that the camber causing the problem, cos my camber wasnt engineer for this size of rims. i may take the car for check up on the tyres, thanks for ur advice.
Arik.

 

Could possibly be too much toe angle?

 

I also think its your tires, some wheel balancers only balance from a range meaning up until a certain speed. If you get the vibration, does stepping on the accelerator make the vibration go away?

 

check your lugnuts and make sure they are the right ones for your wheels. check the balance on the tires to make sure they are correctly high speed balanced.

 

Like 93TurboD said alignment will not cause a tire ballance. The only way it would is if the toe is way out and /or the camber is way out and the tires wear to the point were they are no longer balance.

 

camber can not cause vibration. ever. it's simply not possible.

Check tire balance first, that's the most common reason. Especially at the speed you mentioned.
Toe will cause the tires to squirm and eventually vibrate at higher speeds.