oil accumulator question with regards to oil pressure.

Gary Blair wrote:

BigRigTech wrote:Well that clears that up. I'm on vacation starting Thursday but I won't be home to mess with the car until at least July 4th and I hope to race July 7-9th if I can finish it up. I'll post my findings.

When your pressure drops you will loose flow and pressure at the rear #5 main first. The rear pressure port is best for the accumulator.

If you where to plumb the accumulator to the rear port, #1 main will see pressure/flow drop first!
It's going to be either #1 or #5.
I have mine plumbed in to the front. IF the pump looses pressure the accumulator take over.

good luck

My accumulator is plumbed to the back with -8 AN teflon innertube steel braided hose. Works for me.

I have my oil pressure gauge sender at the rear of the block, the low pressure sender for my red pro light at the port in the front of of the block and and the accumulator hooked to a sandwich plate adapter at the oil filter mount. I just went by the instructions that came with it from Moroso.

I've never ran one so I missed all this excitement.

BigRigTech wrote:I have my oil pressure gauge sender at the rear of the block, the low pressure sender for my red pro light at the port in the front of of the block and and the accumulator hooked to a sandwich plate adapter at the oil filter mount. I just went by the instructions that came with it from Moroso.

A sandwich plate will put the location of the accumulator BEFORE the filter even.  Not a good place for it to be; having to push oil through the filter in order to get to the engine.

It should definitely be plumbed directly into the engine oil system AFTER the filter.

cool40 wrote:I've never ran one so I missed all this excitement.

The need for such is generally over stated.

How many of you guys have both the pressure gauge and a accumulator at the rear of the engine?

Since there seems to be a difference of opinion on using front or rear, why not use both? A 10 line from the accumulator to a Y or better yet a parallel Y with 10 going to the front and 8 going to the rear.

SandHillsHillbilly wrote:Since there seems to be a difference of opinion on using front or rear, why not use both?  A 10 line from the accumulator to a Y or better yet a parallel Y with 10 going to the front and 8 going to the rear.

woah, go easy there. That sounds an awful lot like a compromise to quell the tempers of the masses.

rmcomprandy wrote:

BigRigTech wrote:I have my oil pressure gauge sender at the rear of the block, the low pressure sender for my red pro light at the port in the front of of the block and and the accumulator hooked to a sandwich plate adapter at the oil filter mount. I just went by the instructions that came with it from Moroso.

A sandwich plate will put the location of the accumulator BEFORE the filter even.  Not a good place for it to be; having to push oil through the filter in order to get to the engine.

It should definitely be plumbed directly into the engine oil system AFTER the filter.

OK, now is the time to move the line to the front port and put a T in the rear for the two sending units.

BigRigTech wrote:

OK, now is the time to move the line to the front port and put a T in the rear for the two sending units.

Or, put the sending units in the front and the accumulator in the rear. I have seen both locations work well.
The front has a bigger hole unless you drill and tap the rear larger.

the front is the easier option seeing as the hole is already larger NPT and the hose will reach it.

Lem Evans wrote:How many of you guys have both the pressure gauge and a accumulator at the rear of the engine?

"Raises hand"

I'm installing a system soon, was seeing low pressure towards end of strip (deep front sump with baffled pan and screen type windage tray). Kaase pump.

So I moved the supply hose to the port in front of the block and moved the pro lite sender to the rear with my gauge sender. I primed the system again with the drill and now I see the normal pressure I had before and it pushes the oil into the engine much faster. I filled the accumulator and shut the switch off. I now have the normal amount of oil on the stick again too and that's with 10l still in there. Once I get some fuel tomorrow I'll fire it up to see how it acts without the sandwich plate. Thanks for the help guys.

All is well, I ran the car today and the oil pressure is back to where it was before the accumulator. It also pressurizes the block much quicker now too. I'm getting the front end of the old heap lined up in the morning and weather permitting I'll be racing this weekend for the first time this season.