Some MINE'S Trivia (Part 2)

Recently, I called MINE'S in an effort to get more information about the MINE'S sub gauges - I wanted to know more about their development.  Because I didn't have a torque meter gauge (and because Takayanagi-san's memory of whether they even made one was fuzzy), we talked only about the boost gauge and the oil temp gauges.

You can see them compared to each other here:


First, the oil temperature gauge.  I asked why the number range was different. Was this because MINE'S tuned cars run hotter, for example?  It turns out that the reason is actually a very practical one. The OEM oil temperature sensor is not very accurate.  However, it is most accurate in the higher temperature ranges, up to 150 degrees C.  Thus, the thinking at MINE'S was to simply have the gauge  cover those more accurate areas.  Actually, if you take a look at the OEM gauges (below) you can see that the OEM oil temperature gauge maxes out at 150 degrees C.  So while I haven't talked to NISMO about their scaling, I presume they simply didn't want people thinking it was acceptable to reach 150 degrees.  Different philosophies - be more accurate, or have a built in safety margin.

Second, the boost gauge:  The biggest difference here obviously is how the MINE'S gauge STARTS at 0 kg/cm2, unlike the NISMO one, which reads BELOW 0 when the car is not moving/turbos not spooling.

The NISMO one thus indicates negative pressure, which, if you recall is clearly shown on the OEM gauge:

So when driving around town, the lack of a needle moving on the boost gauge is actually quite disconcerting, because throughout my GT-R ownership, I guess seeing that needle move has become ingrained.