I found this site on the net, If you've got tons of cash they make some great dry sump kits for A series engines (and just about everything else).

http://www.drysump.com/index1.htm

Cool, submit the link.

thanks.

daniel

advantage of dry sump???

btw daniel like what you did with preview/submit buttons

The main advantages of dry sump as I understand it are:

1) Reduced windage losses, meaning less friction caused by excess crankcase oil hitting the crank.
2) Remote oil tank, oil is held in a remote tank which can be as large as is desired therefore oil temp can be minimised.
3) During hard cornering you don't have the problem of the oil running away from the pump pick-up.

On the down side:

1) Its EXPENSIVE.
2) There is a bit of extra power used in running the external pump.

P.S. the reason it intrigued me is that using an external oil pump and management computer would mean no need for original cam in my proposed twin cam engine (refer twin cam thread)dry sump kits

fair enough

power? mechanical or electrical power, is the oil pump run off the motor still or can it be electric?

Normally runs off a belt similar to a toothed cambelt.

power loss is probably made up thru windage reduction, although the amounts we're talking about really only apply to race cars (my interest is that I might be able to do away with the timing chain assembly)

Thanks! just some behind the scenes updates!

daniel

Windage is increasingly important at high RPMs. As RPMs increase, hp lost to windage increases exponentially. A dry sump is not needed at 6,000 rpm, but can save a lot of hp at high rpm. In other words, if the RPMs double, the hp lost to windage more than doubles (I think it squares, i.e. 4x).

At low rpms, windage trays work fine (even in stock pans), and special pans can include oil pump doors ad baffles to keep the oil near the pickup at high gs.

That alloy pan in the photo album sure looks cool.

I contacted them and this is the reply

Neil, I'll give you the prices here- Dry Sump oil pan- $365, dry sump pump 3 stage- $ 695, drive pulleys and belt- $110,
remote filter adaptor-$78, Dry sump tank, 1.5 gallon $338 You will need to make a plate to mount the pump to your block and a mandrel to drive off the crankshaft. Thanks, Gary

This is all in U.S $ so for us Aussies double it and add freight. Duty too if you get caught, which is more likely now with them checking so much stuff that comes into Oz now.

I just want the pan. I can source the pump and everything else locally. I have a very good though not cheap engineer locally who makes dry sump pumps. I know he does good work.....after all he pilots a Nitrobike to 6 second passes which he builds most of himself (Jay Upton)

You can fabricate a dry sump pan cheaply using a rolled steel section. Cut the sides and base from the stock sump and weld in the new scraper and sump pan to the block flange section of the original sump. The losses from oil hittting the crank are exponential vs rpm and are as high as 10 crank hp @ 8500 rpm. You are only removing an energy parasite by fitting a dry sump.