Hi there just wondering if this is working propely, ive just connected the pipes up and when i have the car turned off its at the 0 now when i start it up it sits at below -0.5 then when i put my foot on the throttle it goes upto 0 then back to nearly the -0.1 HELP

 

Looks ok so far.
It will not go up to 1.0bar or above until the car is under load ie; being driven.
just revving it at standstill will only give you a reading of 0.

 

what bar should it go upto or what is safe

 

upto 1.1 and more, depending mods