Show whole topic Nov 20, 2019 10:14 pm
davidbracey Offline
Member
Registered since: Aug 10, 2012
Location: Maidstone, Kent


Subject: Re: 2ltr oil pump and pressure
Fluid pressure is directly related to flow rate and velocity. It’s flow rate you want rather than pressure so be careful when trying to artificially increase pressure. You may find that all you’re doing is reducing flow rate. (Shutting off all flow will increase pressure, and you don’t want that!)

I’ve not done any experiments but I suspect that modern oils with detergent additives may become more fluid at operating temperatures. This would reduce measured pressure, but increased bore or worn oilways will also reduce pressure. It’s a balancing act to ensure adequate quantities of oil go to all the right places. Increasing one may drastically reduce another.

The only sensible way to increase pressure is to improve pump output; flow and pressure. Start with your oil pump would be my thoughts, just as John suggested.