Oil Accumulator
Thread Starter
Heel & Toe
Joined: May 2005
Posts: 23
Likes: 0
Oil Accumulator
Recently a friend lost his engine at a track day. The reason was on hard corners he was losing oil pressure. Another driver suggested the Moroso oil accumulator to prevent this from happening. It's not a cheap install (but cheaper than an engine) so I wanted to see if anyone has any thoughts on this add-on. Also, since the unit only sends oil when needed and recaputures it when it can, would I change the oil in the accumulator every time I do a regualar oil change? It seems to me the oil should be good for a longer time.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
You mean an accu-sump.
YES this would be very helpfull for anyone who does track HPDEs plus oil cooler.
Here is mine in the left front wheel well. Moroso 3 qt
and the coolers up front
trans cooler left - oil cooler right
Yes you change the oil just like normal.
Let all the oil drain out of the oil pan, flip on the switch to allow the oil to be pumped or drained from the accusump and cooler.
My total holds 10 1/2 qts, but can only drain out 9 qts. So it is important to measuer how much oil comes out to put that amount back in.
When putting oil in just fill up as normal, 7qts will do. turn on the engine and let the oil circulate. Check the dip stick for oil amount and add as needed.
Once I get 8 - 8 1/2 qts in I rev the engine and hold the rpms and oil pressure up to fill the accusump, then put more into the oil pan. Not to not fill more then what came out.
Before shutting off the engine, again I slightly hold the rmps UP to increase the oil pressure and fill the accu-sump.
I use M1 15-w50 and change evey two events.
HTH
Tom
YES this would be very helpfull for anyone who does track HPDEs plus oil cooler.
Here is mine in the left front wheel well. Moroso 3 qt
and the coolers up front
trans cooler left - oil cooler right
Yes you change the oil just like normal.
Let all the oil drain out of the oil pan, flip on the switch to allow the oil to be pumped or drained from the accusump and cooler.
My total holds 10 1/2 qts, but can only drain out 9 qts. So it is important to measuer how much oil comes out to put that amount back in.
When putting oil in just fill up as normal, 7qts will do. turn on the engine and let the oil circulate. Check the dip stick for oil amount and add as needed.
Once I get 8 - 8 1/2 qts in I rev the engine and hold the rpms and oil pressure up to fill the accusump, then put more into the oil pan. Not to not fill more then what came out.
Before shutting off the engine, again I slightly hold the rmps UP to increase the oil pressure and fill the accu-sump.
I use M1 15-w50 and change evey two events.
HTH
Tom
Thread Starter
Heel & Toe
Joined: May 2005
Posts: 23
Likes: 0
Thanks Tom. I think it will be a wise investment. I said Moroso oil accumulator because that's what they call them on their website. By the way, I don't know how much you like the 15-50 oil but I've been buying M1 5-30 at the local Costco for $29 for a six pack. Pretty good price. If you have 101/2 quarts you may be just fine with the 5-30.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Ok It that is way Moroso calls it.
I use 15-w50 as it is very heat tollerant. and as you know on track oil temps are 240-260* WITH an oil cooler.
I will use 0-w40 in Jan and Feb with ambiant temps are in the 30s and 40s. But come March it is back to 15-w50
5 qt jugs at wally world. $22-24
I send my oil to two diffent labs evey other change. and 22,000 hard 3000 to red line track miles, My engine is doing just fine
If or when you put it in use a manual switch, not a temperature dependent switch. My switches are in the ash tray area.
When I start the car, I turn the key to accessory, then flip the accu-sump switch. watch the oil pressure go up, and after 30 secs or so crank over the motor.
Pre-lube the block and no small block chevy pistion slapping noise.
I use 15-w50 as it is very heat tollerant. and as you know on track oil temps are 240-260* WITH an oil cooler.
I will use 0-w40 in Jan and Feb with ambiant temps are in the 30s and 40s. But come March it is back to 15-w50
5 qt jugs at wally world. $22-24
I send my oil to two diffent labs evey other change. and 22,000 hard 3000 to red line track miles, My engine is doing just fine
If or when you put it in use a manual switch, not a temperature dependent switch. My switches are in the ash tray area.
When I start the car, I turn the key to accessory, then flip the accu-sump switch. watch the oil pressure go up, and after 30 secs or so crank over the motor.
Pre-lube the block and no small block chevy pistion slapping noise.
Thread Starter
Heel & Toe
Joined: May 2005
Posts: 23
Likes: 0
According to Moroso, I can install the unit so that when I turn the ignition on the solenoid switch will turn the unit on. It sounds like this would take the place of the toggle switch you've installed.
Wally world is Wal Mart, right?
Wally world is Wal Mart, right?
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Wally world is Wal Mart, right?
Safety Car
Joined: Jan 2001
Posts: 3,879
Likes: 3
From: Hobart, WI
I am a bit famous for being a proponent of the C6 oil pan. Even GM says it is better than the flat C5 pan for oil starvation. Probably both ASump and C6 pan are a bit redundant but I to am a member of the track day engine loss club so now safer, rather than sorry again.
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Le Mans Master
Joined: Dec 2006
Posts: 7,251
Likes: 16
From: Phoenix Arizona
c6 pan bolt up to an ls6 ?
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Pro
Joined: Nov 2000
Posts: 743
Likes: 30
From: Farmington Hills Michigan
I have mine hooked up to a switch. I use it to prelube the engine before starting like AU N EGL suggests, then shut it off while on the street. Of course, it is on while on track. I think that if one is concerned about oil starvation on the street, then one is driving in a way that isn't appropriate (assuming the engine's oil level is in spec).
Le Mans Master
Joined: Dec 2006
Posts: 7,251
Likes: 16
From: Phoenix Arizona
Here's something you might want to consider. If you wire it into the iginition, it will be active all the time the engine is running. That is, it will be active while running on the street. My concern would be that if you come to a stop light where the car is idling, will the system begin discharging oil? You wouldn't want the oil pan to become too full.
I have mine hooked up to a switch. I use it to prelube the engine before starting like AU N EGL suggests, then shut it off while on the street. Of course, it is on while on track. I think that if one is concerned about oil starvation on the street, then one is driving in a way that isn't appropriate (assuming the engine's oil level is in spec).
I have mine hooked up to a switch. I use it to prelube the engine before starting like AU N EGL suggests, then shut it off while on the street. Of course, it is on while on track. I think that if one is concerned about oil starvation on the street, then one is driving in a way that isn't appropriate (assuming the engine's oil level is in spec).
good info! 
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Mine are also a switch ( left ) the trans cooler is the right switch
This can also be use to pre-lub the block before starting the motor and reduce the small block chevy piston slap
This can also be use to pre-lub the block before starting the motor and reduce the small block chevy piston slap
Safety Car
Joined: Jan 2001
Posts: 3,879
Likes: 3
From: Hobart, WI
There are at least two real life problems running without switch:
*If you leave the ignition on with engine off, the restart is a problem because you are filling an empty Asump and starting with 0 oil pressure.
* Changing the oil is dicey - think about it--------------
*If you leave the ignition on with engine off, the restart is a problem because you are filling an empty Asump and starting with 0 oil pressure.
* Changing the oil is dicey - think about it--------------
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