Still have no response on the tuning of vauxhall's newer all alumumium 2.2 lire engine as in my astra coupe. I have now came acrooss two different articles of this engine been used in america to better effect. If you go to mig torque and select the thread new car 250bhp. Scroll down to see a stunning roadster using the 2.2 SUPERCHARGED to 240bhp. Had saw earlier a chevrolet coupe at 260bhp.Has anyone got any idea of what other that a supercharger was involved to generate another 90-110bhp and who is best to contact for the actual tuning of the engine? Nobody seems to be catering for the 2.2 over here