what are the pros and cons of running this system?
thanks
Mark
Pro's
Longeveity due to better oil control
More HP and torque
Maintenance is very easy and serviceable.
Neg's
Cost. . .that's really it. You are looking at around $2500 per engine for a standard 3 stage system. If you go with a divider pan system you are looking at around $3500
Pro's
Longeveity due to better oil control
More HP and torque
Maintenance is very easy and serviceable.
Neg's
Cost. . .that's really it. You are looking at around $2500 per engine for a standard 3 stage system. If you go with a divider pan system you are looking at around $3500
thank you.
dumb question, but what exactly are they?
A dry sump system is one in which the engine oil is kept in a separate resevoir and pumped by an external pump through the engine. The oil is then scavenged out of the bottom of the pan and run back to the resevoir for use again.
By not having the oil sloshing around under the crank, you dont have the drag of the oil against the crankshaft counterweights. Additionally as already stated, this method gives you better control over the oiling system as a whole since the oil pump isn't directly mated to cam rpm and can be changed with pulleys if needed.
Hope that helps,
Chris
A dry sump system is one in which the engine oil is kept in a separate resevoir and pumped by an external pump through the engine. The oil is then scavenged out of the bottom of the pan and run back to the resevoir for use again.
By not having the oil sloshing around under the crank, you dont have the drag of the oil against the crankshaft counterweights. Additionally as already stated, this method gives you better control over the oiling system as a whole since the oil pump isn't directly mated to cam rpm and can be changed with pulleys if needed.
Hope that helps,
Chris
what are the HP gains in most cases?.. I hear its between 2500 - 3500 $$ .. does that sound about right?
Also..what are Pros and cons of an external oil pump with out the sump.
thanks
Std 3 stage set up compared to a wet sump internal pump is around 30HP gain. . .but that will vary. . .just an average there. When you go to 5 stage and more with the divider pans you can see another 15 to 30 depending on application, CID, and rpm of engine.
There are no real negatives with an external pump except maybe "room". OEM's are looking into this technology and some are using it currently. We are working with one for a "production" car.
Some big stroke cranks will not clear a typical main cap mounted pump.
The pump would have to be external whether the oil was in the pan or not.
Some big stroke cranks will not clear a typical main cap mounted pump.
The pump would have to be external whether the oil was in the pan or not.
thanks for the info on this.. I believe its a must for my new motor.
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