Pre-Luber advice... ***Update***
 

Hello,

I don't own a Cobra, but the "SHO forums" that I moderate in have not given me any help on my situation. I am looking into a "pre-oiler" of some sort. I did a search on it and found this site and continued to read some of the past threads on these systems.

On to my point, I am currently looking into the Pre-Luber system. From what I have read, I really like it. Also, to my suprise, they have a system for my car(not much for the SHO anymore).

I would like to hear others comments, suggestions, warnings from this forum. Because of the fact you guys probably drive you car less than I do, many of you have experience with this.

Thanks for any help! It is much appriciated!

Hi Jason:

We have recently discussed this in depth. I suggest the following link to that thread....

How to Do the Plumbing...

http://www.clubcobra.com/forums/show...light=accusump

Where to Mount...

http://www.clubcobra.com/forums/show...ight=pre+oiler

If you use the SEARCH feature I am sure you can find more...

Cheers...

Jason - lots of good stuff in the archives - try a search on "accusump".

Ditto above, you might also contact Canton Racing Products.

Thanks a lot for the quick responses... I am going through the links posted above now!

I am wondering why some one would go with the accusump over pre-luber and vice versa?

Jason:
Go to the ERA Forum in the Manufacturer's Forums and look at the "Oil Filter Adapter" thread. Towards the end it starts to address what the two systems provide/don't provide as far as protection goes.
DonC

The Pre-Luber website doesn't have any pics of what the thing looks like :confused:

I've got an Accusump and am quite happy with it. Do you want it strickly for pre-lubing, or do you want some protection during cornering also? Do you autocross your SHO?

In addition to pre-lubing, an Accusump will keep the oil pressure up if you oil pickup gets uncovered during hard cornering. Downside, the Accusump is pretty large. Not much extra room in a SHO engine compartment.

I've got a 3-quart Accusump - here's a pic to give you an idea of size:

http://members.cox.net/petescobra2/a...installed2.JPG


Pete

3qt Accusump completely took care of oil starvation issues for me.

TT

That along with an Aviaid oil pan took care of my oil starvation problems, too!!!

YMMV,
Randy R...

I kept the Canton pan on the car, but the Aviad would've been next if the Accusump hadn't done it for me. Plus the Aviad is a very nice piece of work.

TT

Wow! You guys are awesome!! I do like the Accusump, but the extra room in my engine bay is not there.
http://images.cardomain.com/member_i...2_183_full.jpg
May be able to go with a 2 quart Accusump....

Thanks for the links....

I have not auto crossed my SHO, but I do some very spirited canyon driving. My main reason for the "pre-luber" is for dry starts, but I like the idea of the Accusump supplying oil under hard cornering. Would I have to worry about too much oil getting in the pan and causing the crank to slap the oil and foam it up?

No. The Accusump only provides oil when the pressure in your system is less than in the Accusump. Before you shut your engine down, give it a rev to get the oil pressure up and pressurize the Accusump. Then, before shutting the engine down, shut the Accusump valve. With that procedure, the extra oil stays in the Accusump.


Pete

While pressurizing the Accusump, does that take away from oil that is used in lubricating the motor?

With the electric valve, I would not have to make any adjustments to shut on/off and prelube, correct?

Sorry for all the questions, I have e-mailed Canton with all my questions too. No answer yet.

Thanks for all your help guys!

When you install the Accusump, you fill it with oil, so your entire oiling system now has 2-3 quarts (depending on what size you got) more oil in it. Most of the extra oil is stored in the Accusump. When you oil pressure is low, the Accusump release oil, so now you have more oil in the pan then normal, until your oil pressure goes back up and re-pressurizez the Accusump.

The electric valve is controlled by a toggle switch, but it's not automatic. You have to flip the toggle switch on when before you start your engine (to pre-lube), then flip the switch off before you shut down.



Pete

Jason:
There are any number of ways to wire/plumb the accusump. With an electric solenoid it can be run from a switch on the dash and set either always hot so you can switch it on any time or powered from the run side of the ignition switch so you have to turn the key before you hit the switch to open the solenoid.
Once the accusump has pre-lubed your system you can either leave it on so you have some protection in the event of low oil pressure while running (hard cornering, stops, acceleration) or turn it off so it will refill and be ready for the next start. Depends on if you want it for just pre-lubing or for constant oil pressure maintenance. (the electric solenoid will allow the accusump to refill to the engine oil pressure level even when off but won't discharge into the engine unless it's open).
DonC

One more question... While the oil system is charging up the tank, won't that take away from the motor?

Thanks,

Yes.

For sake of illustration, lets makes some assumptions:
1)assume your engine takes 5 quarts of oil before adding the Accusump.
2)Assume a 3 quart Accusump.
3)Assume you install the Accusump with an initial pressure of 50 psi
4)Assume your engine oil pressure at 2000 rpm is 50 psi
5)Asume your engine oil pressure at idle is 30 psi


When you install the Accusump, your engine's oil pan has 5 quarts, and the Accusump has 3 quarts for a total of 8 quarts of oil in the system.

Before starting the engine, the engine oil pressure is zero and the Accusump pressure is 50 psi. Then you open the Accusump valve. Now the Accusump has 0 quarts of oil and your oil pan has 8 quarts of oil (assume that all the oil in the Accusump disharges - most likely in actual operation there is some amount left in the Accusump), the oil pressure in the engine is greater than zero, and the pressure in the Accusump is less than 50 psi.

Now you start the engine. If you rev the engine to 2000 rpm (just for illustration - I'm not saying to do this on a cold engine), the oil pump raises the pressure in the system to 50 psi. The Accusump now re-pressurizes to 50 psi and fills with 3 quarts of oil.

If you now went back to idle, the oil pump is only pressurizing the system to 30 psi, so the Accusump releases oil and increases the pressure in the system. However, this is only temporary - if you stay at idle, the pressure in the system (engine & Accusump) will drop back to 30 psi and there will be less then 3 quarts of oil in the Accusump and more than 5 quarts in the oil pan.

Before shutdown, to re-pressurize the Accusump to 50 psi so you will be able to pre-lube on the next startup, rev the engine to 2000rpm and shut the valve.


Pete

Thanks, that part I was already aware of...

I don't like the idea of all the extra oil sitting in the pan at idle... I don't want my crank sloshing around in my sump and foaming it up.

My father and I also had an idea to put a one way vavle on the bottle that will only let oil into the bottle... once you charge up to 50psi, you hold that charge(or the highest pressure you have during driving) until you hit the button and let it act as normal.... For normal driving, I think that would be acceptable.

Any opinions?

That's how the Accusump electric valve works if you keep it closed.

From what I have understood, most guys, in non racing applications, with the accusump, have installed the optional electronic selinoid valve. This allows you to capture the pressure and oil in the accusump and then shut the valve for the next time you want to pre-lube. Thus, only on initial start up, after the pre-lube do you have "excess" oil in the oil pan or engine. Once it starts the oil pressure pushes the oil back into the Accusump and then you flick of the valve and capture it there.

Cheers