What oil pumps are you B1 guys running?

Be careful dealing with Johnson, he thinks he walks on water. If you are going to do the dry sump route, you will not go wrong with Auto Verdi or Dailey Engineering. My PS hemi has a Dailey pump, and it makes 18" of vacuum, with no vacuum pump. Top notch stuff and it is not cheap, but, you don't want to cut corners in this department.

There are several wet sumps that are decent, but, no matter what, get a STAR vacuum pump, to go along with your wet sump system. Once again, not cheap, but, well worth it, in the long run.

Hope this helps......

www.daileyengineering.com

Going dry sump is a hassle the first time because you need to buy all the parts such as the tank, lines, filter, drive kit, etc. But once you have a dry sump setup then I doubt you would ever switch back. It is easy to pre-oil the engine, you can change the drive ratio by changing the pulleys, and the external tank provides better quality oil to the engine. If you buy the correct oil pump you won't need a vaccuum pump and you'll probably pick up some power over a wet sump setup.


If you're starting from scratch there isn't really that big of a price difference. A custom pan is going to cost the same either way. The really good wet sump oil pumps cost about the same as a dry sump pump. The cost of a vaccuum pump is roughly the same as the dry sump tank. You need a filter and hoses either way although the dry sump hoses are probably more complicated and longer.

Another nice thing about the dry sump is that you can get rid of load on the distributor gear. If you go with a belt drive distributor then you really clean up the ignition timing. For a motor on the ragged edge having the timing rock solid is worth some power and/or engine life.

Call around and chat with a few engine builders. Guys like Koffel and Best Performance seem to go dry sump on the super serious motors. My guess is that they do it for some of the reasons I listed above.