By-Pass systems and Oil Pressure

[Jason8691]

Will a bypass system lower my oil pressure? Ive seen a few statements on here about that and Im wondering how much (if at all) my pressure will drop.

 

[Steve S]

Mostly I woul say the comments were on the Amsoil setup thas has a full flow and bypass mounted on a remote mount.

 

[RalphPWood]

Bypass filters have been around for many years I think pure oil later (Purolator) invented them back in the 20's. They have always used an orifice about 1/16". If your oil pump can't keep the engine supplied and have enough left to feed the bypass filter a couple of quarts your probably need an overhaul or a new oil pump. I have seen a couple of times where teeing off at the sending unit took just enough oil off the system of a worn engine to cause the oil pressure light to come on at idle. The Perma-Cool sandwich adapter doesn't effect the pressure unless the relief valve isn't large enough to feed the bearing clearances of a worn engine. If you have an oil pressure gauge and it reads good you are OK.

Ralph