Quote:
Originally Posted by NeighborsComplaint
54D-S provides 55 psi at cruise, 54F (SD) provides 80 psi at cruise.
80 psi is ideal for a large journal engine. I don't really buy into the whole distributor drive gear wear wives-tale. I have run the 54F for many years with no adverse effects on a stock HEI distributor gear. For those running a composite or brass gear, yeah, you will wear them out faster with an 80 psi pump.
|
No it is not. I am quite certain the vast majority of engine builders go with a 60lb pump for most of their large journal engine builds.
Where it is cold and a guy has 20-50 in their 455 with 80lb pump it is possible to blow the oil filter apart on warm up. You can twist a billet pump shaft too. That alone tells you all you need to know.
I have a TRW 455 like you,60lb pump. It has been running longer, been beat harder than your 455 and still running.(faster too)
80lb pump is out dated, old school thinking and at this point, a wives tale.