Mine is a k74 2006...vv turbo...Someone kindly posted a techhnical bulletin from Mitzi.....It states max boost pressure is 200kpa...Is that ...200-110 (atmospheric pressure)= 90 kpa above atmospheric. In other words should my boost gauge only go up to 90kpa (approx) and read zero with the engine turned off?? I hope this isn't too anorak but before I buy a boost gauge I just want to get the right scale! Ta Nik

what boost gauge are you going for? the set up is with atmospheric added. the gauge will read about 16psi for set up with any chip unplugged

Found one on ebay,I couldn't resist it! It came from a Spitfire Griffon engine £45 reads up to 24 psi ....very retro!! Its made by Smiths industries...they started making watches after the war,but your prob too young to remember that.!!!!! Ta for quick reply Nik

It says 200 because the MUT II reader sees the signal to the ecu, which at sea level is 1 bar, (14.7psi) or 100 kpa.. Your boost gauge does not read atmospheric it reads gauge pressure. So zero is 100kpa atmospheric.. Hope that makes sense? Full boost you should see around 1.2 bar for short periods.

Brill...I just need to check the calibration of the meter and I'm sorted...Thanks for the help Nik

Isn't that why the gauge swings +/-?

no, that is to tell you vac too