I just built an 1835.
92 mm cylinders, with stock 69 mm crank, with 110 cam.
I also put a full flow oil system with schadek, 30 mm hd pump with
external cooler, and filter. I am using Fram HP1 oil filter as per
schadek's recommendations.
I am using the stock oil pressure bypass valves and springs, that came
with the dual relief case.
I did drill and tap the case, so oil exits at pump cover, runs to
filter, up through cooler, and then back into block in the upper left
corner of block.
For some reason I keep blowing the seal on my filter.
As near as I can tell it is running 45 to 55 psi, and will surge to
65, and up to 80 at 5000 rpms. I am running 20w 50 oil. The pressure
will drop to 20 psi at idle.
Is there a way to adjust the bypass valves down, so that the system
does not build so much pressure?
If engine is cold, I can blow seal with by reving the engine once, to
1400 to 2000 rpms.