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BigWorm Forums Junkie Toymods Board Member I supported Toymods Location: Turramurra, Sydney. Registered: May 2002	Re: questions about dry sumps! Wed, 16 July 2003 18:02 Yep, pricey stuff. You need things like a multi staged pump, a modified sump that'll have a couple scavenge pickups, possibly other scavenge points on the motor, an oil tank, usually designed to separate any air from the oil, lots of oil lines, & about 385 brackets to mount it all up. As for the benefits, a dry sump oil system is way more advanced than breathers, coolers & catch cans. Dry sumps eliminate any oil surge that may be experienced in serious racing, which is where the oil in the sump rushes away from the oil pickup due to high acceleration, braking or cornering force, something you really wanna avoid if the motor is mega dollars (and if you're accelerating!), plus they also are capable of holding a nice big supply of oil ready keep your megabuck motor lubed up & happy. Another advantage is the motor can be mounted lower, which is a pretty desirable feature for a track car for balance & handling purposes. Because the sump no longer needs to store your oil, it becomes almost a flat pan, & is also less susceptible to damage. I'm sure some people who actually know stuff about racing cars can come up with a whole lot more, but there's a start. The thing with oil breathers, firstly, is every car (& motor I imagine) has one. Trying to keep it short, when the piston compresses the mix & it gets ignited, some of the gas gets past the pistons & piston rings & pressurises the crankcase. Without a vent, this pressure would just build & build & wouldn't be good, so this gas (which is a mix of unburnt fuel & air, exhaust & oil fumes & vapors, nasty stuff) is vented into the air intake of the motor & re-burnt. Because this gas is pretty yucky, it doesn't help your motor out much, by gunking up your intake with oily deposits, reducing the amount of fresh cool air, & effectively lowering the octane rating of your fuel. So to avoid this, some people install either a breather on the rocker cover vent, or install a catch can. A catch can catches any oil crap that's headed toward your intake, & then either vents the gas overboard (illegal) or vents the gas into the intake, with alot less oil in it. So the main difference is legal & illegal. [Report message to a moderator]

	Subject	Poster	Date
	questions about dry sumps!	ae86drift	Wed, 16 July 2003 12:42
	Re: questions about dry sumps!	Cool1	Wed, 16 July 2003 13:14
	Re: questions about dry sumps!	BigWorm	Wed, 16 July 2003 18:02
	Re: questions about dry sumps!	oldcorollas	Fri, 18 July 2003 03:54
	Re: questions about dry sumps!	clubagreenie	Sat, 19 July 2003 07:35
	Re: questions about dry sumps!	oldcorollas	Sat, 19 July 2003 07:49
	Re: questions about dry sumps!	ae86drift	Sun, 20 July 2003 07:12
	Re: questions about dry sumps!	GIN51E	Sun, 20 July 2003 09:48
	Re: questions about dry sumps!	Jayem	Mon, 21 July 2003 12:04
	Re: questions about dry sumps!	crazyracer	Tue, 22 July 2003 13:37
	Re: questions about dry sumps!	Bill Sherwood	Fri, 25 July 2003 03:30
	Re: questions about dry sumps!	crazyracer	Mon, 28 July 2003 13:41

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