80 psi should cause no issues. Quazzillion out there that run 80 psi. In fact, a pretty standard pressure for high po engines.

100 psi MT? Wow ! Go big or go home right ?

You don't have any issue with 80 psi. You don't need it, but its not going to hurt anything. Truthfully you need to forget about the oil pressure and worry about the high oil temp, which will cause you problems way before th e80 psi will.

Thanks,
Looked up the burst pressure of the 51060R filter and its well above 100 psi, so I'll let this one concern alone and go back to the other issues along with the heat

Did this get answered?

As a heads up too, there has been many people that have seen oil temps drop a bunch after tuning the carb / fi.

Response in post 47. There is no bypass valve in the hole.

The motor was first tuned with a different prop set on then what I have now. Do agree, if its off the heat will increase, and plan to have the AFR checked soon. As before I'm glad I installed a temp gauge, because the water temp gives no indication of an issue.

Here is a better pic

Had a short couple runs today and no WOT, just cruised at 3600 rpm, using 20W50 Castor Oil. Motor stayed at 160 degrees for max temp both runs

Cold start about 60 psi, idle out thru no wake, motor at almost 140 degrees, throttle up, seeing 75 psi and temp came up after 7 mile run to 220 degrees.

Back in, temp at 110 degrees, throttle up and see 78-80 psi, temp comes back up after a bit to 220 degrees.

Idles hot both times after runs around 40 maybe a tad above.

My filter is still leaking a slight bit of oil (2nd one). Do I crank it down tighter or something else?

You show 110, and 140 Water temp where you list the oil temps, and as you can see, it lowered your oil temp a bunch. As I said above, that is the same thing I saw and why I lowered my water temps, to help keep oil cooler.

If your filter is leaking, check the surface on the remote mount. make sure its flat and smooth. You only need to tighten the filter as normal. I have never had an oil filter ever leak around the gasket.no matter the pressure.

I thought that my filter was leaking and it turned out to be the fitting right above it on my Hardin bulkhead.