Dry sump pumps and vacuum

[408 Nova]

How much vacuum will three spur gear scavenge sections pull on a reasonably well sealed up SBC with a pan that isn't all that big?

Reason I'm asking is I swapped from a wet-sump setup with a vacuum pump to a four stage dry-sump setup and was wondering if I still needed to run my vacuum pump.

Would there be any conflicts between the dry-sump pump and the vacuum pump?

Also, what a good source for mandrels?

[swampbuggy]

Hello 408NOVA, i can't answer your question on your Pump but i can say BLP has a complete line of Mandrels. BLP in Orlando Fla. Mark H.

[KnightEngines]

If it's sealed up good it should be able to pull at least 12" vac, likely more if the pump is not banged up.

[Rick!]

https://www.enginebuildermag.com/2012/1 ... g-systems/
These guys are good at what they do: https://petersonfluidsys.com/index.html
Article that mentions using a vacuum pump with a dry sump system. https://www.motortrend.com/how-to/camp- ... il-system/
A phone call to these guys might be useful. https://www.aviaid.com/pdfs/z06retrofit_kit.pdf

For compactness and less stuff on the front of an engine, adding a 4th scavenge stage would be less total parts overall and one less drive belt and unique mandrel.

[408 Nova]

Now this is why I come here. This is very valuable information and I highly appreciate it!