Has anyone here used a digital boost gauge, using either several regular LED's or a numeric display? I'd like to know how they react to rapid changes and if they are accurate enough. Are they close enough to a real-time display, or is there a delay?

Thanks.

 

I had made a digital knock readout for a 91 talon....I had to wire into the ecu and make the 'knock clock' so to speak, but I believe making a boost one would be easier. I think one of Greddy's profec boost controllers has a digital readout.

 

This isn't personal experience but from what I have heard the analog guages are more accurate and are not as prone to mistakes as digital guages are.

 

Thanks everyone. Making a bar graph boost gauge is pretty simple. But one with actual numbers is a little more tricky.

I've noticed that not too many people seem to use digital boost gauges, since my internet searches come up with little results. Nobody seems to mention the sampling rate of digital gauges and how they compare to an analog gauge. Oh well, it was worth a shot.

 

Digital will always be the most accurate and fastest type of instrumentation for any type of information, especially pressures.

When it comes to what I want stuck in in the visible part of my dash though my VDO 3" 0 - 2 Bar guage is what I prefer.

Once I install my HKS digital boost controller I will have both digital accuracy and recording features in addition to my beloved analog guage features.

Making a digital display is not that bad if all you want is a two digit display.

There is a whole class of ICs that can take your A/D converter output and turn it into digital 0-9 numeric display outputs.

The pain in the ass would be tieing this all together on a bread board (designing a circuit board is usually a bit too much for the average home tinkerer though there are kits for doing so).