Quote:
Originally Posted by Boss330
Direct Injection (DI) has opened up new venues for the engineers to minimize turbo lag (as partly explained above).
Apart from that, recent EU emissions requirements means that there is less and less room for thirsty and big volume NA engines. Downsizing to meet MPG and CO2 emission requirements are major reasons manufacturers are looking at smaller engines with turbos.
(Apart from Mitsubishi that is looking at keeping large(ish) displacement but extremely high compression ratios to achieve the same thing. I believe they are at 16:1 on a petrol engine now!!!)
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Guys,
Thanks to all for responding and clarifying. I'm new to this and have certainly learnt from this forum. Cheers!