WebJun 11, 2024 · The pcv valve has been modified to make it work similar to adjustable orifice, currently set to draw around 12-15"Hg in the crankcase while cruising down the highway. Here's a RacePak graph showing crankcase vacuum during a 6.25sec long WOT 3rd gear pull with the pcv valve as the only vacuum source. WebJun 27, 2003 · A crankcase vacuum reduces internal motor losses since the pistons have less to "work" against, improves ring seal, and improves oil control. on a stock car the PCV generally does the same thing - though it will not function very well in high load situations, and allows oil to get into the intake/cylinder heads.
best way to vent crankcase. Hot Rod Forum
WebJan 29, 2015 · Mark Woodruff owns and pilots one of the nicest (and fastest) Outlaw Drag Radial racecars of the current generation, sporting a ProLine Racing 5” bore space twin turbocharged, monster of an engine. Controlling crankcase vacuum on this 3,500 horsepower engine is a Moroso vacuum pump and a dry sump pump. WebNov 9, 2012 · I run mine thru a voltage dropping resistor during normal street driving, it's quieter and easier on the pump. When the nitrous comes on, the pump gets full voltage. FYI, those pumps pull 8"Hg when powered by a 18v cordless battery pack. Oil seperator made from plastic, glued together sch 40 PVC pipe machined in a lathe... highlands at alexander pointe review
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WebJul 21, 2024 · Adding a vacuum pump is a simple bolt-on component, which isn’t normally associated with a racing engine either. An Aerospace Component vacuum pump replaces the generic open element breathers … WebJun 28, 2024 · With this small amount of vacuum available, crankcase pressure is closely regulated and can have a major impact on how these engines run at idle. I use a Dwyer … WebJan 10, 2013 · A separate vacuum pump could be added on as an engine accessory, driven off the belt. This vacuum pump would draw crankcase pressure, typically from the oil pan and it’s speed would then dictate the amount of vacuum pulled. The speed would be regulated via the pump’s driven pulley. Left: Moroso vacuum pump, typical for a wet sump … highlands at bridgegate