Thread: uprated oil pump

#2 is my line of thinking

#2 is my worry also, but is entirely dependent on the relief valve spring pressure you select.

I would think 10 to 20 % above standard should be adequate, BUT nothing can really compensate for replacing the bits that are worn enough to cause the problem in the first place.

JC

Not really, if an engine gets a bit low on pressure either do a full rebuild or run thicker oil. Has worked as a principle for me these last 30 years. I currently run Penrite HPR30 equivalent 20W60 and change it every 7K. Any longer and the oil light takes longer to go out as the oil stabilisers break down.

Of 3 of the 4 Rangie classics Ive owned, I've always added a separate, air cooled engine oil cooler and not used the radiator one. Helps 2 ways- increased oil pressure due to lower temp and better engine water cooling.
One of the best ones I've found, and TOUGH is a Merc engine oil cooler, steel, most models with 6 cyl thru the '90's. In the Mercs its upright left side of radiator, but in RR fits neatly below the front-most cross member. Relatively easy to plumb up ( Pirtek or the like for hoses).
So if your oil pressure is ok when cold, then this a good solution.
Even a couple early Jags I've had, added an oil cooler and improved their oil pressure/engine cooling as well. eg.XJ6 S1 4.2l- oil pressure cold- 60psi; hot 50psi. engine temp NEVER got near red/hot in 6 years that I had it.