Will an Accusump help? Porsche/EJ20

So I am working on putting a 1996 Subaru ej20 turbo motor in my 1979 911. I have shortened my oil pan about 2 1/2 inches. So I have gone from a little over 4 quarts to a little over 3. The pan is well baffled to start with and we added more, I will also be adding a remote cooler. I guess my real question is whether the accusumps work. Are racers moving away from running them? As I have been told.

I have already bought a 3 quart accusump and I hope it will meet my needs.

Thanks

Please post lots and lots of photos of this project.

Now.

Have you considered further modifying the pan to hold more oil? I'm guessing you shortened the pan for ground clearance, since they hang down quite a bit, but you can also grow the pan wider to hold more. This, couple with additional baffling, should help with oil capacity. Accusumps are useful to help out with poor baffling, but if you're constantly relying on the accusump (such as extended road course action) then you're eventually going to run out of accusump capacity, it's a band aid rather than a true fix. Maybe your best bet is to just use the accusump and closely monitor oil pressure for a while after the swap is done to see how it works. If you need to modify the pan more, you know what you need to do, if the accusump seems to handle the job then you're set.

Bryce

Thanks Nashco I did make the base of the pan bigger but I did not want to make the bolts to hard to get to so I could get the pan on and off. Yes it does sound like a band aid. I am just hoping it works. I will go the the track with street tires the firs few times. That should give me a margin of safety????

I will post pics soon. I am working on it at a friends house and I forget the camera every time.

I run a 3qt accusump on my Celica. VERY happy I have it there. Once you have it you don't ever have to start your engine dry again. My motor never cranks over until my gauge reads at least 30psi.

In the case of running dry in turns it definitely works great. Most race teams are likely going away from them because they don't need them. They can afford to design oil pans that do not have a dry oil problem, or are running a dry-sump with an auxiliary pump to take the place of an accusump with less weight.

If you do decide to go with it, I'd suggest using a mechanical valve for flow reasons. Everyone I've ever talked to that has experience with accusumps has said the same thing to me.

I am putting one on my 7. New Elise's or Exiges (or both) come with them from the factory. It isn't a dry sump, which is the true "fix", but it doesn't cost as much either.

I have a 3 qt one in my 924s and it works like a charm. The almost 9 quart oil changes can be interesting (you need a BIG pan).

sorry about the crappy photos. I will take more tonight

I bought the car 5 months ago. It dropped a valve 13 years ago and has sat since. I hope to have it driving this summer. But I think it will take longer than that to get it looking good.

That neatly solves the $10k engine problem, eh? Man are you going to catch hell from the purest crowd!

I think an Accusump will work as a sortof on-demand extra capacity, and was considering something similar on my race car so I could get the motor a little lower in the chassis w/o a dry sump.

PPOPP score through the roof!

PPOPP?

Well I have some better photos to share.

blaze86vic wrote: I run a 3qt accusump on my Celica. VERY happy I have it there. Once you have it you don't ever have to start your engine dry again. My motor never cranks over until my gauge reads at least 30psi. In the case of running dry in turns it definitely works great. Most race teams are likely going away from them because they don't need them. They can afford to design oil pans that do not have a dry oil problem, or are running a dry-sump with an auxiliary pump to take the place of an accusump with less weight. If you do decide to go with it, I'd suggest using a mechanical valve for flow reasons. Everyone I've ever talked to that has experience with accusumps has said the same thing to me.

Ok so it is time to plumb the oil system. And a few people have told me not to run the accusump but I want to know what tips you guys can give me on the install. And one thing I keep hearing is when the car is at idle speed the pressure will be low and the accusump will dump all the oil in the pan and over fill it. Has any one lost a motor do to low oil pressure and had an Accusump save the rebuild?

Any tips on where to mount the thing?

m4ff3w wrote: PPOPP?

Pleasantly piss off Porsche purists.

(I think I got that wrong.)

RedS13Coupe wrote:

m4ff3w wrote: PPOPP?

Pleasantly piss off Porsche purists. (I think I got that wrong.)

Purists Pissed Off Per Project