I'm just in the process of ordering the rest of the bits i need for my sprint car, and was wondering what gauges I should have. Probably going to be SPA stuff (to match my tacho/speedo) so I can get 4 in the space of 2 with the digital ones, but I'm not sure what I want measured...

oil pressure?
water temp?
then what?

 

I always like oil temp mate, but that's a personal preference.

One you don't need is a vaccuum gauge!

 

true.... or boost (for now)

maybe oil pressure, temp, water temp then volts or fuel pressure then.