427 fe dry sump oil pan !!!!!

[Gaz64]

Originally Posted by Jac Mac

Belt driven Dry Sump Pump which only had two scavenge sections bolted to the lug cast on the pan exterior between f/r scavenge points. Original oil pump still fitted as per normal to supply pressure side of system inlet for it was round hole in triangle shaped pad. Remember seeing pics of this in an early sixties mag about dry sumps-there were two setups, one had shelby links ,but cannot remember the other.

This doesn't make sense. Where is the scavenged oil going and what are we doing with it?

Normally, the scavenged oil goes to a swirlpot collection tank and the engine pressure pump draws from that tank.

[Jac Mac]

Originally Posted by Gaz64

This doesn't make sense. Where is the scavenged oil going and what are we doing with it?

Normally, the scavenged oil goes to a swirlpot collection tank and the engine pressure pump draws from that tank.

Only because your thought process is clouded by the image of modern practice, the scavenged oil goes to the swirlpot/external tank, from the bottom of that tank via a line back thru that 'hole in the triangular pad' & onto the pickup tube of the original internal pressure pump of the engine, system is then on thru the pressure system as per normal.
Does not get rid of any of todays associated problems like oil pump drive-dizzy gears etc, but then when you think about it with a nice continous supply of de-aerated oil from the tank life might have been easier on the pump drive, and maybe the oils were slightly better back then along with real mechanics rather than just the parts fitters of today.

[Gaz64]

Originally Posted by Jac Mac

Only because your thought process is clouded by the image of modern practice, the scavenged oil goes to the swirlpot/external tank, from the bottom of that tank via a line back thru that 'hole in the triangular pad' & onto the pickup tube of the original internal pressure pump of the engine, system is then on thru the pressure system as per normal.
Does not get rid of any of todays associated problems like oil pump drive-dizzy gears etc, but then when you think about it with a nice continous supply of de-aerated oil from the tank life might have been easier on the pump drive, and maybe the oils were slightly better back then along with real mechanics rather than just the parts fitters of today.

Thanks for explaining Jac.

I understand the concept, but I don't understand why anybody would go to the trouble of dry sumping, fitting a multistage external oil pump for scavenge use only, and then rely on an internal oil pump for supply.
The one and only advantage I see is if the external pump has a mechanical failure or the belt comes off etc, the engine will still have oil pressure in the time it takes to shut it down.

[DMXF]

Originally Posted by Gaz64

I understand the concept, but I don't understand why anybody would go to the trouble of dry sumping, fitting a multistage external oil pump for scavenge use only, and then rely on an internal oil pump for supply.

Just look at the modern Vette Z06's, same style setup...