4 bar GM style map senosr
Does anyone have an experience using 4bar map sensor with HP tuners?
Anyone every use one of these 4 bar GM map sensor at all, thoughts?
It isnt a nice way to do it but as long as you know and understand what's going on it isnt a big deal. Might confuse the **** out of someone else tuning it at a later date if you didnt tell them though lol
Whilst you can peg a lower pressure sensor, I dont like doing that. I like a sensor with headroom as you can use the higher pressure values on the tables as a crude failsafe for overboost.
With a pegged sensor you cannot do that
I've only seen one seller on egay selling a 4bar GM style though, so no idea what the quality etc is like.
Other makers do sell similar though, think Bosch do a 4 bar sensor too.


