the system has a two pumps in one unit
one is pressure feed ,the other is a scavenge pump which sucks all oil from sump and keeps sump virtually dry at all times
disavantages first
you will have an oil tank inside the car somewhere
and more plumbing to and from the tank and a remote filter unit usually.
oil will take longer to getup to temp ,if you consider that a disadvantage,if so fit a thermostat
more cost in oil change .
costs money
more weight overall than std system
advantages
very ,very stable oil temp+ pressure
extra oil capacity
built in windage tray
no oil surge or starvation ever
less crank case breathing,as no oil to slosh about and crank will never be hitting oil in sump
more power as less parasitic drag of oil hitting crank
more power probably as this system will be very high flow rate ,but never over pressure ,so less power to drive system especially at very high rpms
more space under engine as sump will be tight to bottom of block ,there will be the pump unit at cam end of engine + some plumbing to go to oil tank.
possibility of having different exhaust manifold and have it sitting tighter to sump and although there will be a pump unit at cam end of sump that should allow a much better exhaust manifold layout ,smoother bends and use of larger primary sizes + collector especilly when using a 4-2-1 with long primaries to gain some torque back at mid range rpm with high rpm (9k) n/a engines with better ground clearance .
would allow sump gaurd to be higher on rally car
more ground clearance
much better oil return in turbo cars as there will never be any backing up of oil return to sump
would allow lower fitment of turbo unit and still allow good oil return + different primary lengths + shapes to turbo + fitment closer to block ( manifold could look more like a n/a 4-1 unit)
centre line of turbo could be be as low as just above the lower edge of std block which would probably give more clearance to water rad + maybe some more air cooling ot turbo unit from under the car
wil also allow better turbo exhaust outlet fitment both in direction and size --oil filter housing could totally removed and oil passage ways blocked if using remote filter unit
fitment of a pre engine start oil pressure system is easy with a dry sump system as is the use of a laminar water/oil inline heat exchanger ,if you wanted to get rid of the std type oil cooler which can be hard to find a place to fit it in the air flow ,this would also warm your oil up quicker from cold start
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when the flag drops the bulshit stops.
owner of GMC motorsport 01671404030/01671403699
Last edited by axsaxoman; 21st September 2013 at 10:04.
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