I am out of places to stash a gauge inside the car, so it would be under the cowl I guess.

IDK, is it the OE sender, or cluster?

Just going off of what you said. You don't even need a permanent oil pressure gauge. I simply meant hook one up so you can assess the pressure under given conditions. If you want to go braided, go for it. I'm sure your oil is contributing to your higher pressure reading but I'm not sure if you should be running thinner stuff, you built it. I'm not sure why you want thinner either with your wasting power/generating heat comment followed by not chasing power. I'd wonder what the oil temp actually is? I should probably listen instead of speak here as I'm sure you researched the hell out of this topic. I know there are positives to thinner oil but is it correct for your application?

My factory gause actually reads VERY slightly higher then my aftermarket.

So I have the factory guage - attached right above the oil filter in a T-fitting that feeds oil to the super charger, and a mech. Autometer attached into the top of the block in the rear.

I Run 10-40W Dino


Mech gauge shows about 2-3 Lbs less then stock gauge.

At startup I'm around 80PSI, Once oil temp gets above 180 to starts to drop off slightly. Sunday is was 82degrees out and I was hot laping the car Oil was about 195 degrees and pressure stayed above 65PSI.

I don't know if I would go lighter on the oil, unless something like 5-30W with a bottle of STP?