Installing dry sump on Renesis?
05-15-2005, 06:56 PM
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Installing dry sump on Renesis?
Any rotary-mech-savvy folk know if there is any horsepower to be found in the Renesis through a major oiling system modification, such as the use of a dry sump system?
On many of the race motors I've worked with there have been definite gains in power using external chain or belt-driven oil pumps with remote oil reservoirs in comparison to standard wet sump setups. From what I've been told, this extra power is realized by two things:
1) The reduction of excess crankcase pressure, which allows for a more robust intake charge, and
2) the elimination of excess or opposing-direction oil weighing down the rotating crankshaft assembly, which allows for a more free-rotating motion of the crank.
Seeing as how the Renesis differs greatly in mechanical layout and oiling procedure, do these same or similar rules apply in regards to dry sumps on a rotary?
On many of the race motors I've worked with there have been definite gains in power using external chain or belt-driven oil pumps with remote oil reservoirs in comparison to standard wet sump setups. From what I've been told, this extra power is realized by two things:
1) The reduction of excess crankcase pressure, which allows for a more robust intake charge, and
2) the elimination of excess or opposing-direction oil weighing down the rotating crankshaft assembly, which allows for a more free-rotating motion of the crank.
Seeing as how the Renesis differs greatly in mechanical layout and oiling procedure, do these same or similar rules apply in regards to dry sumps on a rotary?
05-15-2005, 07:56 PM
#3
there's no need for a dry sump on this engine except for sustaining consistent oil pressure in high G-load cornering while racing. It will be very expensive and requires regular maintenance. If the oil pump belt breaks kiss your engine good-bye.
10-05-2005, 07:50 AM
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Originally Posted by zoom44
maybe i am misunderstanding the terms but i thought we already had a dry sump?
Meanwhile, the oil pan for the Renesis' new wet-sump lubrication system is only about 1.5 ins. (4 cm) deep, half that of the 13B. This, they explain, contributes to a 3% weight reduction compared to the dry-sump system employed by the first generation of the Renesis displayed in 1995
For those who don't know, a wet-sump system relies on gravity to pull the oil back down to the pan, where it is then pumped back up into the engine. In a dry-sump system, there are scavenging pumps at various places in the oiling system which pull the oil through the engine and pump it back in. The advantage is that under high g loads, the oil can slosh to one side and starve the pickup of a wet-sump system.
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