NS Dev
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| posted on 10/1/08 at 09:09 PM |
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Dry sump tank air space
Anybody know what airspace I need in a cylindrical dry sump tank to hold 4 litres of oil??
I have guessed a litre (plus a 300ml breather/oil seperator can on top of the tank as well)
Is this ok?
cheers
Nat
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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oadamo
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| posted on 10/1/08 at 09:40 PM |
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1 gallon is 6" x 14 3/4".
adam
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NS Dev
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| posted on 10/1/08 at 09:49 PM |
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.........Back to the question!!
I could do with knowing the AIR SPACE above the oil, needed to stop it blowing it all out down the breather pipe.
I know you need a fair bit of air space but not how much works
Tank will be 5" diameter, but that is largely irrelevant.
[Edited on 10/1/08 by NS Dev]
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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oadamo
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| posted on 10/1/08 at 09:55 PM |
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soz read the question wrong .
adam
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NS Dev
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| posted on 10/1/08 at 09:59 PM |
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no worries, sorry for being a bit sharp!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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mark chandler
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| posted on 10/1/08 at 10:38 PM |
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From memory, 1/3 air 2/3 oil with a fine mesh to assist in seperation. Oil comes in at an angle so it swirls againts the side of the can
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Phil.J
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| posted on 11/1/08 at 11:19 AM |
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About a third or a bit less of the total capacity. With only 4 litres of oil you need to be careful when the engine is cold as this small volume of
oil can get 'hung up' in the engine when thick and sticky, leaving your pump sucking some air. It pays to look at improving drain-back to
the sump where you can (extra drains from the head area etc). A Hayabusa will hold 2.5 litres of oil in the head area when cold for example!
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NS Dev
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| posted on 11/1/08 at 11:25 AM |
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Yikes!!
Hadn't thought of that!
I am using aprilia RSV mille vee twins and they are dry sumped as std, so I was basing oil volume on what they contain as std. I might add a bit for
safety then!!
I couldn't just base the airspace on the mille setup as the tank is a funny shape being on a bike!
cheers
Nat
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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NS Dev
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| posted on 11/1/08 at 11:28 AM |
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Ps Phil, that would explain why the radical with hayabusa engine had such a vast tank, always wondered why it needed to be so big!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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Richard Quinn
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| posted on 11/1/08 at 01:10 PM |
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Nat,
Are you doing anything clever with respect to air/oil separation in your tank? I have an RSV Mille tank on the shelf in the garage and it
doesn't look particularly big so, as I won't be using it, I might do a little surgery and see how it's done inside.
Cheers
Richard
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NS Dev
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| posted on 12/1/08 at 10:22 PM |
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errrr, you don't fancy selling it do you rich??
i am seriously running out of time and given another std tank very cheap, I'm tempted to just run the std tanks!!
let me know!
cheers
Nat
ps I was going to use a tangential return with a piece of stainless perforated sheet welded into the path of the oil being returned, on the inside
wall of the tank.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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