Thing is i cant figure out screech is. When I had a 1.6 I had no power so I had it lowered and a slight stretch on wider wheels, but now I have a valver I have it at standard height with the right size tyres so I can enjoy the car (well when it's not broke lol). So my question to you is, why go to all the trouble of doing a 1.8t conversion, and then the lower your car so it's handles like kack, and fit tyres with stretch, so that you can't push it without worrying about them? Don't get me wrong I love the way your car looks now, just don't get the whole idea in general, maybe I'm getting old in my ripe age of 21 
Jus saying
Mate Ive had this car for about 3 years now hopefully ill keep it for another three, in that time ive run many different suspension at different heights ,driven the nuts off it,driven it conservatively,had many different wheels ,it just at a stage where it all kind of clashes and the engine doesn't suit the handling at the moment but I get bored quickly and it will evolve again with better suspension and normal tyres,ps I wont be worried about the tyres coming off after a bit of testing ,so to sum it up its just kind of happened as I didn't plan it this way, this phase will pass like they all do lol,and will probably focus on getting it to handle better in the near future,i have thought about going back to stock height but they do look rather silly,then I will mess it all up again with a power hike

it will work one day im sure.