no idea.... good point.....i dont think it makes any difference.....if they use bar or psi.
as long as they get the pressure right it dosent matter......
bloke walks in castle performance and says
hi there i want a cossie boost upgrade,
yes your ok for 15 psi on that engine,
thats great, whats that in bar......
..aaagggrrhhhhh about 3bar
great i'll have the ajustable boost valve and 3bar cut off...
cheers see ya later
............intalls boost valve new boost cut off switch.......
takes it for a spin bang goes the engine!
