since i' swapping the busted 1.8 for a low mileage same spec one as soon as i can afford it i was wondering what to do to improve it while it's out the car and easier to work on.
i've already got wider wheels and i'm fitting racing discs and pads for stopping power. not going overboard though. also planning a 2.5" or 3" sports cat and wide bore throttle body to go with the viper induction. planning to remap the ecu too. already have a stronger clutch. i know the 1.8 block is the same as the 2ltr so a turbo with down pipe can be fitted. if i put in a stronger head gasket and lowered the boost pressure would it help or just make a nice looking mess? i'm not aiming for super fast, just a bit more ooomph. not looking for over 180bhp as that means changing a lot of stuff.

well if you have it out anyway and aren't afraid of it, just clean it up. if you really want to get into it, go for a complete rebuild. that way you know that everything is weighted properly. if not, then just go for the usual, plugs, wires, chip, exhaust, etc. nothing to outrageous. change the injectors to be able to keep up with the turbo. your 2.5 - 3" exhaust, what is the size of the down pipe? don't go to big there, you'll lose low end pressure. and don't go messing with head gaskets and crap, keep it as is, unless you want to tear it down and strengthen everything. good luck and keep us posted.

considered stipping the old block down and rebuilding it into a race engine over a few years, then sell it or fit it with a better box. i'm not bothered if i wreak the original block as i can't use it with a busted crankshaft anyway! may as well to some improvements. something to do in the bad weather.