Does any body have or know about a all-in-one gauge that has multiple inputs ie for water temp /water pressure / oil pressure /oil temp / EGT / Boost.

Having some thing with a recorder for about 5 min of play back would be really nice.

Also like an ECU but just with data logging and no input

 

Stack and Motec both make them. Expect $1550 to $5K. You can even get you playback capability. Can you tell that this is a very marketable requirement. :-)