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Oil Accumulator Or Extended Sump?

MJTru

By MJTru,
in Engines & Forced Induction

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MJTru Mentor

MJTru

Posted
Posted

Well I already have an extended sump. I was wondering if I should run a accusump oil accumulator. After reading up on it a bit. I slowly started to understand how it works.

The way it works. I dont think you would even need a larger sump for that matter

In the event you lose oil pressure for a split moment the accumulator would take care of it until oil pressure is returned. Well for any where from 15 to 60 seconds.

Has anyone used them before.

The car im building is for around 800hp the very most. And only for drag racing.

The oil accumulator can even be used for pre oiling before start up. Cost wise I dont even see a need for a extended sump really.

Any thoughts would be very appreciated.

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https://www.sau.com.au/forums/topic/450883-oil-accumulator-or-extended-sump/
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GTRPSI
GTRPSI

Either 35 to 40 or 55 to 60 depending on where you want it to kick in. The idea is you are selecting the discharge point or trigger point. It will fill itself at oil pressures above the selected val

Canton Racing
Canton Racing

We are the manufacturer of the Accusump, we always recommend looking into a better oil pan first. With that said, a front sump in a drag racer is a recipe for disaster and I personally would jump int

GTRPSI
GTRPSI

Now you made me put the die grinder down and take some pics of today...first day i got back into it in months.... As she sits tonight....(thats a RB30 bottom end next to her) Todays job is a coupl

GTRPSI Mentor

GTRPSI

Posted
Posted

We have a 9 liter sump and will be using one also.

You can never be too careful when it come to maitaining oil pressure, all you need is that one time you kept the revs up and pooled oil into the head to run the sump dry or high g forces to move the oil around and uncover the pickup.

Its good insurance.

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

This R33 GTR build includes an extended sump, (same as yours I believe) HKS oil pump, oil restrictors and accusump. I'll find the page for you (although the whole thread is interesting) ...its page 47, post #701 and on the next page post #713 there is a link (reproduced below) that he made on the operation of his accusump.

http:www.skylinesdownunder.co.nz/forums/index.php?topic=66378.690

Http://youtu.be/uhRfUegqwxg

XKLABA Grand Master

XKLABA

Posted
Posted

If ONLY drag racing with no high G corners then not worth the effort cost wieght etc

Extended baffled sump will be enough

Edit, your running rwd with slicks yeah, get the Accusump cuase once those front wheels get airborne all bets are off

GTRPSI Mentor

GTRPSI

Posted
Posted

If drag racing the design of the frontal sump setup is working against you, on hard launches oil will move to the rear when you need it forward.

Even gated and higher capacity is no guarantee that enough oil will remain over the pickup for long enough, most of the top level of oil will try to go over the baffel towards the rear.

A hard 4WD drag launch on sticky rubber is heaps of g force.

Idealy the sump should have been designed on the rear.

We have a freind with a drag racing Supra that logs oil pressure, on the launch and next 2 gear changes logs recorded the oil pressure dropping to zero before he woke up to what was happening......

XKLABA Grand Master

XKLABA

Posted
Posted

As I said above, slicks is a different ball game, I checked the data logging on my 34 after a trip to the drags with Toyo TQs and I had no oil pressure issues

There is so many variables you can not really compair two different engine setups

Canton Racing Newbie

Canton Racing

Posted
Posted

We are the manufacturer of the Accusump, we always recommend looking into a better oil pan first. With that said, a front sump in a drag racer is a recipe for disaster and I personally would jump into an Accusump right away. The front sump oil pan will be working against your oiling system almost immediately. Our best dealer for New Zealand is a company called Demon Tweaks. Their website is www.demon-tweaks.co.uk.

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KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

Never heard of Demon Tweaks and the UK is about 12,000 miles away - the US is closer. Accusump from Canton is available from a number of speed shops in NZ but the one that comes to mind first is Cardwell Racing. I presume there will be a number of suppliers in Australia as well.

MJTru Mentor

MJTru

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From what I hear its a bit more expensive to do a tune up. Well that also depends on the accumulator size your going to use. Like he said above on a oil change discharge it and the oil capacity of the accumulator is the additional amount of oil you will add to your sump. Start the motor up close the valve to the accumulator after about 1 minute of running. Check your oil level with the valve close with engine off. If all is good. There ya have it.

MJTru Mentor

MJTru

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They only con I see to have this part is the space it takes up.

I rattled my brain as to where to mount this part. I may end up taking out the ac condensor and mount it round that area. Right behind the hood latch and on top of the intercooler.

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