Hi guys, Got a tough one for you. Here's the question. I've heard that all early oil pumps for watercooled VW's featured a 90lb pressure relief spring. Sometime later VW switched to a 60lb spring for lower pressure. Does anyone know when the cutoff was or what engines have this pump? I have too much oil pressure running 20W50 valvoline oil in a 84gti pump. I tried a 85 golf pump that was used and had the same pressure. I bury the 100lb guage when cold. After getting the watertemp up to 190, the oil pressure is at least on the guage, but is still over 100psi. After a hard 20lap feature, the pressure is 90 at idle and if I touch the gas, it sends the pressure over 100. I really would like one of the lower pressure pumps. I think running at 60 at idle and 80 at speed would be great. Right now I'm 90 at idle and probably 150 at speed.

Really looking forwards to your comments,
Scott