Just looking at all the options for fitting a gauge pod to the Calais which has a cam and the other usual bolt-ons. The car has never been on a track and is unlikely to be.

I like the 3-gauge pods that are available - HSV, JPH and also the one Bonners has.

Question is whether the 3 gauges that are fitted to the HSV pod are the best for my purposes. I certainly see the necessity for Oil Pressure and Volts, but is Oil Temp important in a daily driver road car that is rarely revved hard?

So I guess I am after comments on what the 3rd gauge should be. Yes it could be the traditional Oil Temp, but 2 other options are:
- Wideband Air/Fuel (Air/Fuel ratio at any time)
- Vacuum (I understand this can indicate the health of the vacuum system generally and also leaky head gasgets, sticking/worn valves or valve guides, fouled plugs, incorrect timing)

Both of these give read-outs that relate more to day-to-day running and engine condition and tune etc.

Any comments and opinions that help me decide would be appreciated - even if I am way off the mark and should stick with Oil Temp.

Thanks!