[bmc69]

I set mine up so that they run 35-40 hot idle and 50-60 off-idle with the HV pump. Had too many issues with busted dizzys running anything higher.

I buy my pumps from Precision..blueprinted..and they set the pressure relief where I want it. 75 psi from stock volume pump would be fine..but for a HV..yr asking for trouble IMHO.

Oh..and FWIW..all my engines have the reverse oiling (external line) setup too..some through an oil cooler and some just direct.

 

[bmc69]

well its 15-40 I wanted to run thinnner but won't now
I bought it with the pistons, mains, rods installed...I had to put the timing set, oil pump, heads, etc together.
The bottom end I thought the guy said was balanced, but only to run 6,000 rpm tops
Good question on the holes in the crank...I don't know
The guy that did the bottom end I believe just polished it as it was in spec.

I think I am going to pull the engine and check the bearings as I really wanted more...This is for my trail ride/wheeler only and it will see some rpms and abuse.

I would expect that its the crank if yr sure it was only polished. That said...those numbers are fine as long as they still hold true for the highest RPM you want to run.