As previously indicated, Oil Pressure (and Oil Level) gauges are ALMOST not worth the trouble or expense of installing; in real World conditions, you virtually have to be STARING at the damned gauge with a hand on the ignition (or kill switch) to truly have a chance of actually "saving" your engine. Usually, those gauges are just good at being "reporters"; they're the first to tell you that you've already HAD a catastrophic problem!

They're good in race cars, because race car drivers are trained and used to checking their gauges every 2 seconds, literally. In real World driving, we're all guilty of being lulled into a bucolic state of complacency; fiddling with radios, CD players, DVD players, Palm Pilots, Cell Phones, GPS devices, returning text messages, nut scratching - have I left anything out? I'd bet the BEST among us prolly only averages checking what gauges we have maybe 12 times/hour over the course of a drive...

Now if you're REALLY heart-set on making a failsafe "system" to save your engine in a low pressure situation, there are total systems available that will monitor your oil pressure/level (BTW, this will require you to modify your oil pan with a sophisticated baffling system) at all times, and automatically shut your engine off in the event of a loss of pressure/level. I'm guessing it's not likely "street legal" (not that I guess anyone would CARE if they were hellbent on having said system) and it's probably pretty expensive in its own right, but they DO exist and they could be modified for the VX...

Myself, I'd only consider it if I had a Keith Black-built all-aluminum Hemi motor worth $30-50K; now THAT would be something to protect! (Hmmm....wonder if it would fit in the VX...)