Hey guys Last night I pulled all 4 Coilovers out and raised my car by 2cm to accomodate new wheels. I also set the spring rate so they where all even as they weren't before. I also put in rear upper camber arms. Everything is tight and snug, except I just took my car for a drive and now the steering is very twitchy. It's very sensitive and feels like it's following the contour or grooves made in the road. If I slightly turn it completely over compensates. I hope you understand what I am trying to say. It's a very scary feeling. Does this all come down to a wheel alignment now that all suspension has been played with ?
Yes it does ! Wheel alignment is essential after suspension changes It will remain scary until its aligned properly
Wheel alignment will definitely be required, but you also mentioned that you changed the wheels... If you went wider on the front the increase in track on factory geometry can massively affect bump steer and "tracking" (following the contours of the road). Narrower tyres can help counter this if your in love with the rims