and i think that's just the side of one of the two mated cases? am i right? it accounts for just 6 of the 12 cylinders?

This I can confirm ;)

Bob,

I have time to sleep on this and come up with a what if..

What about using the oiling system off the engine to run the hydraulic pump. For instance, tap into the high pressure side of the dry sump, route the oil to the hydraulic motor and back to the engine. You may have a slight drop in pressure across the pump but that can be compensated in the oil bypass valve, perhaps a bigger oil pump.

Just a thought,
neil

sounds like a lot more work then to do it like on a 917/935
eg, mod the case for extra gear, then 90 degree gear change towards engine center
and in the center, another 90 degree upwards, install fan , done


drilling in the oil circuits, for an unproven solution just sounds to difficult for what it's worth... especially since everybody wants oil pressure at the bearings, and would hate the idea of potentially seeing both oil pressure AND cooling fail at the same time


also , i think a hydraulic motor would run like crap on hot engine oil and it would take huge amounts of oil running through that thing to make it spin the fan anywhere near fast enough just to cool it at idle...

http://www.spezialmotorer.com/start/flatfan/flatfan_1.htm
http://forums.pelicanparts.com/uploa...1179840080.jpg
http://forums.pelicanparts.com/uploa...1179840090.jpg
http://forums.pelicanparts.com/uploa...1179840098.jpg

flipping fanblades Batman, how much $$$!?

No idea...but I can assure you, she ain't cheap, Robin!

anyone notice the 950hp 3.3 turbo on their website?

this shop isn't the kind to screw around with mufflerbearings

Not to take it off topic, but yeah, some pretty incredible engine builds on that site.

drool....so, so pretty

Early lexus sc coupes use a hydraulically driven cooling fan I believe. Dont ask how I know or why I remember.

A lot of very good ideas....exactly what I was hoping for.
Engine oil is out...too much of a strain on the oil pump to make it practical.
A vertical shaft out of the engine, driven from the crank would be nice.
I wonder if you could drive a shaft from the pump shaft, up beside the crank, going through one of the main webs?
It would run at 1/2 crank speed,you could gear it up to whatever you needed, and would exit the case directly under the fan through carrier bearings to take the loads.
I will have to dig out the spare AL case and measure.
Bob