Uprated oil pump spring yes or no !

[Devonrod]

I have a Turner top hat 4.6 engine, its only done less than 2000 miles, I have an SD1 front cover and oil pump, I have to replace the oil filter bottom housing / plate as I have a partially stripped thread on the oil pressure switch, I have a decent s/hand plate to put on, new gears, new relief valve plunger, and uprated ( guess MGB V8 ) spring, from Rimmers. Have read lots of dos & donts about the uprated spring, even some bad ones about the tadpole valve, any thoughts please.

[jp928]

The RV8 relies on oil volume more than pressure, and as you have the SD1 front cover there should be plenty of volume. Increasing the pressure with a harder spring will also increase the load on the driving gear on the camshaft, which is generally a bad thing. Just keep up regular oil changes.
jp74 P6B S

[ChrisJC]

I once fitted a tadpole relief valve. It got jammed!!!

Chris.