Quote:
Originally Posted by wbradley
I had to re-enter the PIDs etc in my phone to check the vitals now that the car is back on the road. Previously a now busted tablet was configured for boost, AFR.
Anyway, for some reason the Vacuum gauge is showing something like -23 PSI at idle and at WOT it is rising up to maybe -11 PSI vacuum but never going into boost.
I am 100% sure the car is actually boosting, based on the performance when I hit the throttle. In fact I am guessing my HKS is putting out ~ 9.5 PSI at 7000 RPM (though I stay below 5500 RPM almost 100% of the time).
So, what's wrong with the way I have the gauge configured that it is always in vacuum? Any help is appreciated! Since the swing is approx 12 PSI perhaps if I knew the proper vacuum PSI at idle I can determine actual boost based on the difference from low to high.
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Just thought I'd share some info as I was getting the same issue described by @
wbradley where the gauge would never show as hitting boost.
In Torque when setting up the vehicle profile, if you enable the advanced settings it allows you to enter an offset for boost PSI. By default its 0 but you can put in both negative and positive values. To work out what offset to put in you simply need to go into Torque and find the barometer reading from the car.
My barometer reading was ~18.27 PSI. So I minus that from 14.7 and was left with -3.57. I entered that value as my boost offset and now Torque is displaying boost and vacuum accurately.