With supercharging or turbocharging you are effectively increasing the displacement of your engine by a % factor i.e. the boost above atmospheric pressure gives you the positive displacement often referred too. I would probably use a multiplier of 1.5 to give you the typical gains you can achieve so your 1.2 would become like a 1.8.
I wouldn't think it would make sense supercharging or turbocharging a 1.2 when you get get the same result by simply using a 1.8 or 2.0 litre engine from the same model range and gain basically more power at a cheaper cost and better reliability.
Also consider probably the most important thing ...
The 1.2 car which is being supercharged probably has suspension, brakes and running gear suitable for a 1.2 and not 1.8 ... So you would probably be best off using another base car and engine anyway rather than doing an engine transplant in order to retain safety. Don't forget your insurance company would expect engineers reports to say the work was to a satisfactory level which would include overall vehicle safety and suitability for the conversion.
With any tuning there is always a 'bigger picture' and often tuning is all interelated and not just about more engine power, or better suspension etc. It's the whole package of tuning and following a logical approach based on where you want to go and how much you have to spend.
Martin
I wouldn't think it would make sense supercharging or turbocharging a 1.2 when you get get the same result by simply using a 1.8 or 2.0 litre engine from the same model range and gain basically more power at a cheaper cost and better reliability.
Also consider probably the most important thing ...
The 1.2 car which is being supercharged probably has suspension, brakes and running gear suitable for a 1.2 and not 1.8 ... So you would probably be best off using another base car and engine anyway rather than doing an engine transplant in order to retain safety. Don't forget your insurance company would expect engineers reports to say the work was to a satisfactory level which would include overall vehicle safety and suitability for the conversion.
With any tuning there is always a 'bigger picture' and often tuning is all interelated and not just about more engine power, or better suspension etc. It's the whole package of tuning and following a logical approach based on where you want to go and how much you have to spend.
Martin
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