Mate, put it back to stock and sell it. I know I should be supportive and tell you to stick at it, but I know it's always going to be the same for you. I regret the Glanza build, I know it's never going to be 100% how I want it. Yes we may enjoy these cars when they work, but does that really make up for all the times we drive around worrying what's going to break next? I would have broken mine a while ago if it wasn't for my cousin and a good mate, they've put many hours in the car with me and it would be plain rude to tell them I'm breaking it and that their efforts went to waste. Go and test drive a few motors, my brothers just purchase a 2004 Seat Leon FR. 98k, FSH, 150bhp and plenty of torque. A happy guy for £4100, puts a smile on my face every time I drive it. It pulls so well and is amazing on fuel.