Alex@Stratified
Go Kart Newbie
You're calling me an apr fanboy because I claimed 24+ psi? I feel like you must be since I've been the one talking about it. I am not posting about it to be bragging about it and making shit up, so I'm not sure what your deal is. Fuck APR, I don't like them at all. When I had apr I've seen 25.6 psi on my p3cars guage though.
Does that gauge have its own sensor or does it plug into the OBD port to obtain the reading?
The OEM sensor will not read above ~1.5bar of boost at sea level. At higher elevations where ambient pressure drops you will be able to read more boost. The absolute pressure it will read is 2.5bar.
If the gauge has its own sensor you may have seen a spike to 25psi when lifting for example just as the BPV opens. It also depends where you tap the external sensor into. The closer to the turbo you are the higher the boost pressure as there are pressure drops from the turbo to the manifold through the piping and FMIC. Unfortunately the OEM turbo won't hold those pressures on this engine, it is just too small and the WG spring is very soft.