Crank No Start

[SuspiciousPizza]

I thought I'd update on the coolant pressure performance. It's on the brain now that my radiator started leaking. Turns out Subaru still sells radiators for my GL. How grateful I am for that.

From a cold start by the time the RPM's have fully dropped it'll be steady around 10-12 PSI. When driving it'll fluctuate anywhere between 4-12 PSI. I think I should have tapped into the thermostat rather than the heater core inlet, that way I could see if the thermostat has opened or closed. 

There is a correlation between RPM and pressure, however the temperature of the engine does play a factor. I'm not informed enough to say how much is head pressure and how much is the pressure buildup from heat, but it's cool to see them all interact by watching the gauges. 

I live in an area with lots of rolling hills and vastly different temperatures between summer and winter. I actually have to keep the revs above 3k in order to keep the engine warm enough in winter. I don't cover my grille, I've found that prolonged highway driving with it covered can cause the engine to get a bit too toasty for my liking. About 1/2 way up on the temperature gauge.