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Old 06-28-2013, 07:14 PM
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A properly plumbed accumulator will use a one way valve or drain back filter so the oil is pushed from the accumulator right into the main galley. Payton is right, it will lube the crank and fill the pan so the pump doesn't cavitate. There is a pressure gauge on the accumulator with the manual valve. You just subtract the 6psi precharge off the total. I would simply rev up the engine with my right hand and close it at say 60 or 70 psi.
My understanding of the accumulators with the mechanical valves is that they will kick in at the oil pressure it was shut down at. If your shutting it down at 60 or 70 it wouldn't dispurse until you reached 60 or 70.
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Old 06-28-2013, 10:04 PM
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My understanding of the accumulators with the mechanical valves is that they will kick in at the oil pressure it was shut down at. If your shutting it down at 60 or 70 it wouldn't dispurse until you reached 60 or 70.
Your overthinking this whole deal. Once the manual valve is open, engine oil pressure and accumulator pressure are equal. If you start to lose oil pressure in a corner, the accumulator piston will simply push oil into the engine until pressure resumes to normal, then the accumulator piston will return and the cylinder will be at full capacity. It only reacts to a decrease in oil pressure on the engine side. It's like a shock for your suspension.
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Old 06-28-2013, 10:48 PM
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Your overthinking this whole deal. Once the manual valve is open, engine oil pressure and accumulator pressure are equal. If you start to lose oil pressure in a corner, the accumulator piston will simply push oil into the engine until pressure resumes to normal, then the accumulator piston will return and the cylinder will be at full capacity. It only reacts to a decrease in oil pressure on the engine side. It's like a shock for your suspension.
Don't mess with the SAE mechanic.
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Old 06-28-2013, 10:57 PM
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Really good article... http://www.stockcarracing.com/techar..._accumulators/
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Old 06-28-2013, 10:59 PM
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Your overthinking this whole deal. Once the manual valve is open, engine oil pressure and accumulator pressure are equal. If you start to lose oil pressure in a corner, the accumulator piston will simply push oil into the engine until pressure resumes to normal, then the accumulator piston will return and the cylinder will be at full capacity. It only reacts to a decrease in oil pressure on the engine side. It's like a shock for your suspension.
Todd is right Did I just say that Yea I did.

Another way to look at it. It's a big syringe. Setting it up the first time You put 50+ lbs of air into the back side with the engine off and the valve open. That pushes the piston all the way down. Then you bleed the air pressure down to about 10lbs.

Now you have an empty syringe. When the engine starts up the engine oil pressure fills the syringe and pressurizes the air on the backside. The syringe is set to give the shot.

If the oil pressure drops Dr Air pressure give it a nice smooth shot of oil.

As soon as the oil pressure rises back up the syringe refills.

Don't get confused by the valve. It doesn't do squat while the car is running. It's only purpose is to trap oil in the syringe when you shut the motor off. You have to close it before the motor is off so it traps oil in the syringe.

The only reason to run a cable or electric valve is convenience. You don't have to get out of the car while it is still running to trap the oil in the Accusump.

Hope I made it more confusing.
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Old 06-29-2013, 07:28 AM
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Thanks for confirming that guys
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Old 06-29-2013, 11:24 AM
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Thanks for confirming that guys
Just hook it up and let her eat already JEEEEEEEZZ
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Old 06-29-2013, 11:53 AM
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Just hook it up and let her eat already JEEEEEEEZZ
Wont be till after this track day so I'm going to try and refrain from pushing to hard.
Completed the alignment today and she's already loaded in the trailor.

Was up at 5:00 a.m.. Went to the grocery store to pick up food and drink for today and tomorrow. Picked up the trailor, loaded it, took the car for an alignment, loaded the car, then put fresh rubber on the hauler. And its only 11:45 a.m.. Gitter Dun!!!!!
Temp forecast has changed at T-Hill from 106 and is now supposed to be 108 on Sunday. Going to spend the day eating healthy and hydrating.
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Old 06-29-2013, 12:12 PM
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Wont be till after this track day so I'm going to try and refrain from pushing to hard.
Completed the alignment today and she's already loaded in the trailor.

Was up at 5:00 a.m.. Went to the grocery store to pick up food and drink for today and tomorrow. Picked up the trailor, loaded it, took the car for an alignment, loaded the car, then put fresh rubber on the hauler. And its only 11:45 a.m.. Gitter Dun!!!!!
Temp forecast has changed at T-Hill from 106 and is now supposed to be 108 on Sunday. Going to spend the day eating healthy and hydrating.
YOU ARE A RACER !!! BE SAFE GO FAST AND WHOOP SOME ASS
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Old 06-29-2013, 04:41 PM
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Originally Posted by Track Junky View Post
Wont be till after this track day so I'm going to try and refrain from pushing to hard.
Completed the alignment today and she's already loaded in the trailor.

Was up at 5:00 a.m.. Went to the grocery store to pick up food and drink for today and tomorrow. Picked up the trailor, loaded it, took the car for an alignment, loaded the car, then put fresh rubber on the hauler. And its only 11:45 a.m.. Gitter Dun!!!!!
Temp forecast has changed at T-Hill from 106 and is now supposed to be 108 on Sunday. Going to spend the day eating healthy and hydrating.
Have a good time out there. It's hotter than F down here. I feel like I'm in Austin except there is good food around the corner and decent beer to be found.

Looking at the thread made me think Accusump probably has their instructions on line. Even better, they have a FAQ page. I'd read through that before I listen to the Jackstand Army members.

http://www.accusump.com/accusump_tech.html
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