I've had just about enough of the Suby contingent crowing about the latest in Bluetooth OBD2 smartphone apps and associated hardware.
Any self-respecting Luddite can clearly see the fallacy here. All of this digital, wireless gobbledygook is necessary only because there's no other way to talk to an engine that's been taken over by legions of nameless, faceless sensors, black boxes, and microprocessors.
There's no need for such nonsense in a god-fearing engine controlled by springs, Heim joints, jets, and little brass thingies.
The only readout I monitor to see how the car is running is my BDA display. I've been using BDA (Bug Density Analysis) for years to check that my engine is performing up to snuff. Here are today's results, after an 80-mile run through the Amador County wine country:
Careful inspection shows an average bug density of about 50-55 BSF (bugs per square foot). This tells me the engine is right in the sweet spot for a rural run in early spring. Two readings are taken (driver's side and passenger's side) and averaged, as the side closest to the edge of the paving usually picks up about 1.7 times the number of bugs as the side towards the middle of the road.
Maintaining this crucial 1:1.7 ratio is the key to a successful run.
I use another set of old-school instruments - my ears - to confirm the engine is running smoothly. And, of course, I always check to see if we have arrived at our destination. Sometimes, that's all the readout I need.