Quote:
Originally Posted by Blackwizard222
how much can the engine be lowered in the cradle?
Approx 6 inches, basically minus the sumped part of the pan.
how much extra oil capacity is there?
Depends on what size resivoir you use.
how much, if any, power is free'd up or lost compared to wet sump oiling?
The average dry sump set-up has the ability to scavenge 2 to 4 times the volume that it pumps into the engine. This causes negative crankcase pressure, which gives you horsepower. Dry sump systems also offer a more stable supply of oil in all conditions since there isn’t a rapidly spinning crankshaft located right above the oil.
The negative pressure is similar to that of a vaccuum pump, so net gain can be from 10-20 hp. However you will have much cooler oil than a wet sump.
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we have done very little on car motors with dry sump systems -- having said that i won 3 AMA nationals road racing motorcycles as the team manager and crew chief -- and i understand what and Y its done -- the power loss ratio to gain is greater but for reasons not menchioned -- wet system oil volumn being thrown around in the pan drags the crank and rotating assembly ( u can run faster in water up to your ankles than up to your knees ) dry + -- # 2 little known and talked about is pluses in vacumn -- the vacumn created in the pan actually sucks the piston rings out on to the cylinder wall ( oil ring for the most part ) reason low tenchion oil ring was developed -- also the evac of any and all of the oil in the motor gives it free spin ability --- dry + -- as far a oil temps go the more plumbing used the the longer the hosing ends up being and the fittings need to be flowed mandrel bends the more air bubbles and foam to deal with -- we found the hoter the oil runs the more volumn is in contact with the bearings ( Flat style car type ) so like i said not to up on car motors but their is a two hour read on affects and issues i had seen one time no longer have it but its not what many end up with as a benifit -- but racing is a monkey see monkey do -- and sometimes its for the better NOT always -- jz