Moroso Accumulator
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
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From: Lompoc, CA. Santa Barbara County
Bee Jay's Moroso Accumulator
Surprise, I'm adding weight instead of dropping it. I need this for the hard right hander on the track we use for autocross. I think I'm going to tap into the front of the block like GKull George did. Hey George, what size is that plug at the front of the block just above the timing cover?
Last edited by Bee Jay; Sep 7, 2016 at 12:45 AM.
Melting Slicks
Joined: Feb 2009
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From: Dallas Georgia
2020 Corvette of the Year Finalist (track prepared)
C3 of Year Winner (track prepared) 2019
Sorry, I don't have your answer but is that a 2qt or 3qt accumulator?
I have a 3qt in a box to install and was wondering how it would look in that area. I thought about putting it on the inner fender (where your intake pipe runs) to keep it a little more out of sight.
I have a 3qt in a box to install and was wondering how it would look in that area. I thought about putting it on the inner fender (where your intake pipe runs) to keep it a little more out of sight.
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
This is where I want to tap into the block for the accumulator oil supply. The other small block in my garage does not have this. I don't want to remove the plug until I have the Earls fitting that will go there. I just need to know what size this plug is.
Le Mans Master
Joined: Dec 2003
Posts: 5,727
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From: Fremont CA
Factory that is a 1/8 NPT thread not really big enough to plumb your accumulator to. When that passage is used it is opened up to a 3/8 NPT size so ID is about the size of an oil galley. I have hand drilled this passage but it's easy to break out of the casting, there is a fixture sold by CV Products to do this job. Better to plumb to the oil filter for now
Team Owner
Joined: Apr 1999
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Cantons recommended min is 3/8ths and prefer 1/2 inch
My motown block came with a 10AN plug on the drivers upper rear of the block. My modded SBC was tapped with a 1/2 inch.
On loss of oil pressure you want instant pressure again. So it is good to mount the accumulator in a heat area so the oil is up to temp and can flow
My motown block came with a 10AN plug on the drivers upper rear of the block. My modded SBC was tapped with a 1/2 inch.
On loss of oil pressure you want instant pressure again. So it is good to mount the accumulator in a heat area so the oil is up to temp and can flow
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
Factory that is a 1/8 NPT thread not really big enough to plumb your accumulator to. When that passage is used it is opened up to a 3/8 NPT size so ID is about the size of an oil galley. I have hand drilled this passage but it's easy to break out of the casting, there is a fixture sold by CV Products to do this job. Better to plumb to the oil filter for now
Thanks
Le Mans Master
Joined: Dec 2003
Posts: 5,727
Likes: 39
From: Fremont CA
BJ my buddy owns one they are around $300 as I recall he rents it out for $45 to drill hole in right location. It is a fixture that bolts to top of timing chain cover bolt pattern has a boss and you use various sixes drill bits/bushings to drill out the passage. I can see if he would be willing to rent it to you but, if you motor is assembled in the car I don't know if you can use it, it would be pretty scary to try to remove all the chips from the block and oil galleys on an assembled motor.
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Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
BJ my buddy owns one they are around $300 as I recall he rents it out for $45 to drill hole in right location. It is a fixture that bolts to top of timing chain cover bolt pattern has a boss and you use various sixes drill bits/bushings to drill out the passage. I can see if he would be willing to rent it to you but, if you motor is assembled in the car I don't know if you can use it, it would be pretty scary to try to remove all the chips from the block and oil galleys on an assembled motor.
Bee Jay
Le Mans Master
Joined: Dec 2003
Posts: 5,727
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From: Fremont CA
Nor-Cal just like me and my wife's Blue LT-1 roadster. I'll try to get a hold of him this weekend and see if we can ship the kit down south to you, he might want a $300 deposit for it to make sure it's returned.
Instructor
Joined: Feb 2007
Posts: 116
Likes: 8
Straight from the manual.
"Be careful that the tube, cylinder is not exposed to high heat (exhaust pipes)." This will cause one to leak. "The unit is mounted next to a high heat source, causing the oil to expand greatly while the valve is closed." "These units should not be mounted in a place where they can become excessively hot, especially not in a place where they will absorb heat after the engine is shut off and the Accusump™ control valve has been closed"
You may want to move your straps to the very ends of your cylinder. They can cause distortion. Its also in the manual.
"Be careful that the tube, cylinder is not exposed to high heat (exhaust pipes)." This will cause one to leak. "The unit is mounted next to a high heat source, causing the oil to expand greatly while the valve is closed." "These units should not be mounted in a place where they can become excessively hot, especially not in a place where they will absorb heat after the engine is shut off and the Accusump™ control valve has been closed"
You may want to move your straps to the very ends of your cylinder. They can cause distortion. Its also in the manual.
Last edited by racervette69; Mar 30, 2014 at 09:51 AM.
Safety Car
Joined: May 2004
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From: los altos hills california
I installed a 2 QT Accusump under my vacuum tank and plumbed it to a Canton oil filter adapter. Maybe a foot of hose required straight shot into the motor. If you want I will look for a picture.
Burning Brakes
Joined: Oct 2010
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From: Prescott AZ
Safety Car
Joined: May 2004
Posts: 4,366
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From: los altos hills california
kinda dark in there
and kinda greasy here
no shots connecting the two but you get the idea. It was a tight fit to get the Accusump in there and I had to fashion a mount to attach the clamps to. The master cylinder and vacuum tank both must be out to do this.
and kinda greasy here
no shots connecting the two but you get the idea. It was a tight fit to get the Accusump in there and I had to fashion a mount to attach the clamps to. The master cylinder and vacuum tank both must be out to do this.
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
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From: Lompoc, CA. Santa Barbara County
