Dry sump vs wet sump

[blykins]

A dry sump system is going to be mucho expensivo. If the majority of your driving is street, there's absolutely nothing wrong with a good high volume pump, an oil pan with trap doors, and an Accusump for emergencies.

[patrickt]

Originally Posted by blykins

A dry sump system is going to be mucho expensivo. If the majority of your driving is street, there's absolutely nothing wrong with a good high volume pump, an oil pan with trap doors, and an Accusump for emergencies.

Brent speakum truthem. When I toyed with the idea during my build process six years ago the ballpark estimate for a nice Aviaid system, with all the additional accessories, was going to top out at over three grand. And that was then....


EDIT: Here is a price sheet, I don't know how old it is: http://www.aviaid.com/pdfs/fe.pdf

[patrickt]

... that if I put my car on flatbed and sent it to Jerry or Brent and told them to put in a new Aviaid dry sump and to make it look perfect the bill would start with a "4" -- maybe.

[RodKnock]

Originally Posted by patrickt

... that if I put my car on flatbed and sent it to Jerry or Brent and told them to put in a new Aviaid dry sump and to make it look perfect the bill would start with a "4" -- maybe.

Sheesh. With cutting the fender and mounting all that stuff, including the tank, using top quality parts like Aviaid, making sure nothing leaks, etc., my guy, who I would trust to do that kind of work, would charge $10K. I'd bet.

[patrickt]

Originally Posted by RodKnock

Sheesh. With cutting the fender and mounting all that stuff, including the tank, using top quality parts like Aviaid, making sure nothing leaks, etc., my guy, who I would trust to do that kind of work, would charge $10K. I'd bet.

Uhhh, Brent and I will hop on a plane and fly out and put it in for you for ten grand. Right Brent?

[RodKnock]

Originally Posted by patrickt

Uhhh, Brent and I will hop on a plane and fly out and put it in for you for ten grand. Right Brent?

Who said I trusted you guys, especially with cutting into my polished aluminum fender.

[D-CEL]

Ok, Ill play.

It seems that I have read about alot of wet sump issues on this board. Twisted and seized drive rods, stripped dist gears and sheared roll pins seem almost common. As dry sump pumps rarely drive off of the cam, those wouldn’t exist, thus removing a common oil system failure source.
Dry sumps pumps seem very reliable, the NASCAR guys sure spend good money on them.
They are more expensive and more complex from a plumbing standpoint. But in return they provide many benefits, Uninterrupted oil flow, actual scavenging and crankcase vacuum (without a separate pump), higher pumping efficiency, tunable pressure, increased ground clearance, greater system volume etc. In addition to the obvious performance benefits, the pump is outside the motor, service can be done without pulling the pan.
From a performance standpoint there is no comparison, dry sump wins.
Is it worth the added cost/complexity? That’s your call..


Jason

[RodKnock]

Originally Posted by D-CEL

Is it worth the added cost/complexity? That’s your call..


Jason

Well, yes, if you set aside the cost and complexity issues, I agree, dry sump wins.

And, if you set aside the calories, carbs, fat and sugar, then chocolate cake wins too.