Looking at the figures for the various Volvo 900 models, about 10bhp per 1psi increase in boost prssure sounds around right (approx 7% per psi).
Now it comes down to things such as general engine reliability at these higher pressures, turbo life expectancy, and fuel consumption.... Does anyone have any info on those?
I have to admit that fuel consumption doesn't really worry me - I've had plenty of vehicles that only average 24-25mpg, so I'm perfectly used to that!
Regards
Eddy
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