Where to look for data standards

[mnlc90]

Where can I look for the standards for the data being displayed?  For instance what should my MAF, MAP, engine temp, timing, etc be when driving?

[pigsy]

Bump. Good question

[Weston@PPE]

Unfortunately, there's not a place that has a list of data like this. It would be near impossible to collect such a list, since these data values will be different for each and every vehicle.

Just some general information, MAF is a measurement of how much air your engine is taking in. This fluctuates directly with the throttle position. MAP is the air pressure in your intake manifold, and should (at idle) be ~20-30 kPa, as the throttle opens it should go up to within 1 or 2 kPa of the barometric pressure outside (~100 kPa at sea level). Timing advance is how far before the piston gets to the very top of its travel that the spark plug gets fired. Engine coolant temp usually gets up to about 210°F, but some cars might lets it get higher like 220°F.

[pigsy]

Thanks for the info. What would be considered a high intake temperature for a turbocharged car?

[Weston@PPE]

I've never owned a turbocharged car, but the intake temps can get very high. Most non-turbo cars can get 110°-120° intake temps if they idle without moving for a few minutes. I'd expect a turbo car to get a lot higher if you were using the boost (I would think that 180° would be normal if you didn't have an intercooler). If you were driving around without using the boost they shouldn't get any higher than a non-turbo car.