I'd seriously consider some internal baffling to stop the oil ending up at the rear of the engine(away from the oil pickup)when braking. My SR20 used to lose oil pressure when braking over bumps and then eventually spun bearings. I replaced the standard baffle with a solid plate which I put in one way valves that I made using body washers. No oil pressure issues after doing this.
All of the head and polishing work was done by me because I got a quote and had to decide between divorce and doing it myself. I'm sure there is lots of helpful comments on that subject.
The sump is being baffled, so I know it's a long shot but if you have any pics of your sump I would be grateful. I am doing every affordable option to better utilize the oil as it is the biggest stress with the SR20. After numerous differing opinions I went with knife edging the crank due to less aeration of the oil and a better throttle response. The dry sump option was thousands.
i've heard that the turbo SR's have a higher flowing oil pump , due the having wider pump gears , can i ask what the knife edgeing cost , was it a stock crank ?
__________________
were we're goin we dont need roads.
it's not the speed of life that scares me, it's the sudden stop at the end ,
Knife edging was $660 INC or $550 cash. It is done on a CNC machine, but he had to buy the program especially for that crank. I get it back Monday arvo so I post some pics.
The guys who have done it before said it is the best bang for buck, but a definite no go for turbo SR20s as it reduces the life of the crank and bearings too fast.