I run a 2000 X 1.6 8V Astra. I understand that the engine is a X16SZR.
Having monitored the oil and water consumption recently, I think that the head gasket is starting to go, and therefore I have prepped myself for a head skim, head gasket, cam belt change.
The power output of my car has never been great, and the fuel consumption has never been overly good. Speaking to the garage who gave me a price for the head, I mentioned that I was looking to increase the power output to give it a bit more oomph, and he suggested having the head skimmed by 20 thou, and also having the head polished and ported. He also suggested swapping the head for a head from an 2 ltr 8V engine. I queried this, and he said that he was a Vauxhall trained mechanic, and that the 8V head from a 2 ltr Cavalier will drop straight on, giving me bigger valves, and better combustion.
Is this correct, or is he talking tosh???
I did suggest swapping the engine for a 1.8 or 2 ltr 16V but he came back with the remark that it wasn't a straight swap, and that I would need to source the ECU to go with the engine, drive shafts etc. and part of the loom???
I would like to increase the power to give it a bit more oomph without wrecking the fuel consumption (I only get 30 - 35 mpg at the mo anyway). I'd considered a semi 'hot' cam?
I will be changing the air filter set up from the standard Vauxhall set up, to a K & N in the New Year.
Any comments would be greatly appreciated...