I have a 1600 K with the purple pump set up with about 20 K miles on the engine. A reasonable amount of which has been track day work, the majority not in my hands.
Towards the end of the summer I was getting noticably more engiune vibration at about 4.5 to 5 k rpm, especially on throttle back. Topping up the oil helps this , but the engine just dumps that out via the catch tank after a while and the vibration gets bad again.
This vibration is worse after repeated acceleration through the gears, sounds like oil starvation to me, but OP is fine on the electric gauge.
I have done a couple of oil changes via a suction pump and now feel it is time to take the dreaded blue plate off . I also wish to remove the sump and just give it a clean and see if there is anything silly going on in there.
I have seen on CC website that they do a small filter for the dry sump K cars, part No FP 2026. Where is this on the car?, I assume it is on the outlet from the sump pan.
Also why do I need 2 sump gaskets?, I only ask so I don't get any surprises and order up the right parts..
Laslty, any thoughts on what else might be going on to cause the vibration from the POBC.
TIA
Doug