Aftermarket Gauges and Data Logging

[Gary in BR]

Hello,

I have decided I am going to add a few gauges to my car.

What are the differences between the mechanical and electrical gauges?

Currently I have a mechanical VDO boost gauge below the radio in the top empty shelf. I want to change the location of my boost gauge but it appears that running the wiring will be a little tricky. Do electrical boost gauges have the vacume line or just an electrical line?

What gauges do you think are important for a modified engine.
I am thinking a boost, air / fuel and oil pressure. I have room for one more gauge.

How about data logging?
And to complicate matters I want to keep an OEM look.

I have also thought about getting a OBDII system that I can plug into the OBD2 and read a variety of gauges. Similar to the HKS unit Kirk has installed or the Brockway units that the TT guys are running. The problem with this is that a future mod I am working on will require that the OBD2 port is used for something else.

VDO or AEM are the front runners and I think in order to get everything I want AEM will be the way to go. But I like the simple lines of the VDO.

I am open to any other opinions.

Thanks and make it a great weekend.
Gary