[bigtoe]

Very Well Done Kevin.
I have e-mailed you on the site for more information.

Is this designed for the 8 as well as the 4 counterweight crankshafts?

 

[bigtoe]

Think of it like this;
Stand in a pool with you hand facing front and the palm facing down, now quickly pull yor hand to your hip, throught the water it's harder and slows down right?
Same thing in the crankcase. The oil moves and does come into contact with the counterweights and rods. The windage tray also helps to keep the oil at a consistent level to prevent surge etc.
The oil scraper is an old American V8 trick.
It reduces inertia by wiping excess mass, oil, off the crank, it also reduces windage because the crank does a good job of atomising the oil it throws off. So if you can remove it by wiping it off, then it helps the situation.......big time.
This is not a mod for the bolt on guys.
Every little bit counts and this is truly intended for the racer types.

As far as piston oiling from oil thrown from the crank.............not realy.
The rod journals traverse a sector in their path that takes them almost into the bore with the piston at TDC. The oil leaving the rod journal is slung upwards to the bore, more than sufficient oil.
You also have a thrust face lubrication port in the rod that keeps the bore wall lubricated. Also the Oil control ring pack takes oil into the underside of the piston where it can drain to the wrist pin and the eye at the top of the rod.

Nissan did not intend for a random uncontrolled "windage" to lubricate the pistons or bore.

Again, good product. I want one for my Dry Sump system, I can do with the 1hp gain.