Originally Posted by
oldford
Tabetha, you consider running at 18 psi save, when the standard map sensor only can measure up to 15.5 psi?
Yes I consider it safe for me, maybe because I have a 4 bar map sensor, I didn't suggest the questioner to do this, merely used this as a example of how his engine would be very safe at stage 1 with the mileage he has.
tabetha