Dry Sump questions

How much power have you seen going from wet sump to dry sump? Anyone have any pics on how you set up the pan and how you mounted the pump? Any particular brand highly regarded vs others? Can you take an existing wet sump oil pan and just install fittings, or is the dry sump oil pan a specific design? I need a specific pan to clear K-member and steering rack, haven't really found a dry sump pan--but they don't need to be really that big, right? The original pan I used was like this, with the shallow part 5 inches deep. Couldn't I just run a pan that is 5 inches deep all the way across as its a "dry sump"?

Put an external pump on it, less packaging problems.

What this is really about (for me) is I don't want to have to worry about oil pressure during shutdown. Dry sump seemed to be the most effective, but I have not looked at an external pump set up.

I never had an issues w mine during shutdown.

If you're going to change it put a drysump on now.its more plumbing but you'll have no oiling problems.

I looked at a couple threads from 2009 that had a lot of great info with pics on this--but the one thing I didn't see is: with the dry sump I could eliminate my vacuum pump, correct? With external pump, I liked the advantages of that to, and it looks to be pretty simple. Either way, I think the internal pump is out for sure on my current build.

richter69 wrote:I never had an issues w mine during shutdown.

Where did you place your pickup in the pan, and was your pan a rear sump or front sump? In my 67 mustang, it was a front sump and I never had issues either, but in this car its a rear sump, and the oil pressure did drop during shutdown.

Put the drysump on it you wont be sorry. Mounting the pump is usually a custom fit . Mount pump on pass side and have oil pan outlets on driver side of pan allows more wiggle room for lines . I have a peterson 5 stage and still use my vac pump ,but the oil pump will pull a very good vaccum and the relief is venting on my vac pump even at idle running 12 " .

If you run a drypump pump it'd be best to use a pan designed for the application. I'd still use a rear 'sump' about 8".
Take a look at the pan that Keith Fulp used on his 618" build....it's an example of how creative one can get to suit a given chassis.
 
It suspect you'll still need to run the vac. pump to get enough vac. for the best power.

Dry sumps are great but not worth the expense if you already have a vac pump and parts. Not to mention the added weight and packaging issues. Wet sump with an external pump is almost as effective and a lot less expensive.

Is a dry sump legal in all the classes you want to run?

It is but there is a 60lb weight penalty, which in my case means nothing as I will be heavier then what is allowed anyway.

I didn't weight all the parts as I changed them but the best i can tell the weight of a oil tank is all the extra.that kaase pump and 2'long pickup tube aint quite heavy as the other pump but close.

richter69 wrote:I never had an issues w mine during shutdown.

i had same problem at shut down -thats why im switching to external pump and removed front sump in fox body pan

For some reason I always thought this was a problem with rear sump pans--not front sump.

oil gets trapped in front sump thats why i removed it

Are you refering to the oil pump pocket as a 'sump'?

Lem Evans wrote:Are you refering to the oil pump pocket as a 'sump'?

when i went thru traps and hit brakes and pulled chute i went from 60 psi to under 10 all the oil went to front sump ...so i removed it and doing external pump

Sounds like you removed the pump pocket.

doing external pump dont need it

badnotch wrote:doing external pump dont need it

Gerry...I'm not saying that you need 'it'. Just that 'it' does not function as a sump...it's just a relief/pocket that allows the oil pump to live in that style pan. B.T.W. i think going to an external pump is a great idea when the budget allows it.   

well im not skimping on this motor so an extra $ will be worth it plus my engine guy is giving me a new peterson pump all i have to do is pay for brkt and lines and ive already modified pan