Why not use OBDII?
I wanted to either find for purchase, or design and build, a boost gauge for my car, so rather than having a gauge sit somewhere on the dash, I could have the readout on my screen.
I know Phidgets has a PSIG meter which you can use with an API setup. Does anyone else know of other solutions or somewhere to purchase something pre-made?
I just need 0-20psi.
You can't get boost pressure through ODBII. You would need a proprietary protocol that is car specific to be able to read boost.
I think I'd personally go with the Phidgits option. You'd need to build yourself a front-end for it, but at least you wouldn't have to worry about drivers and all that.
BTW, what kinda car? Being a gear-head, I'm just curious.
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2005 GTO CGM-M6
Can't use OBDII for the reason he said above, plus, the car doesn't come stock with any boost devices
you could use a regular boost gauge and have a shaft encoder on it to the PC. Or look for a pressure transducer. quite easy really but the former is easier to calibrate in a way.
Originally Posted by Scouse Monkey
the gauge wouldnt be able to turn a shaft encoder
yes it would. i bet you.Originally Posted by scott_fx
optical ones have no drag.