On my search for a low yet accurate boost gauge suited to the Stillen SC kit, which didn't get far, I got the idea of actually making one instead.
Most Gauge go at least to 25 or 30 psi. What we want is no more than 10 psi. And the accuracies of mechanical and electronic gauge are beyond scrutiny. We can but hope that 8psi doesn't actually mean 7 or 9psi.
So I was thinking of getting a suitable BOSCH MAP sensor, they are highly accurate (OEM parts) and very fast response time and have a very linear output across their range. All we gotta do is display that output as eg. LED bar or digits. It just needs a little voltage conversion to express that output voltage in numbers representing psi. Electronics wise this is very simple. The display possibilities would be endless too.
Saw this inspiration for a BMW:
The challenge is finding a cost effective BOSCH sensor with calibration curve available. I looked at this cheap fella
#0 261 230 191 (used in supercharged Mercedes and others) with a pressure range of 0.15-2.6 bar (up to 23psi boost) but no datasheet.
Whereas the
#0 281 002 119 (up to 22psi) has a datasheet saying response time is smaller that 10ms and accuracy is ±1.5 kPa, that is ±0.2psi guaranteed accuracy! But this particular part is pricey.
I keep searching, maybe I get lucky
