darth G-F
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| posted on 18/4/05 at 04:37 PM |
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Dry sump or Swivel on Hayabusa Caterham??
I am buying a Hayabusa powered Caterham. Since it is using a motorcycle engine, it is recommended to use a dry sump for track use. However, I found a
guy that sells a special sump with a swivel for car equipped Hayabusas. Swivel pan picture.
I was wondering if some of you had any idea how good the swivel solution can be. The swivel is much cheaper and much more simple than the dry sump. A
guy I know said they used that solution on their SAE Formula car. So it shouldn't be that bad.
What do you think??
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Jon Ison
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| posted on 18/4/05 at 04:40 PM |
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do a search on here
http://uk.groups.yahoo.com/group/bike-engined-cars/messages
they where disscussed at length recently, i cant comment, never used one.
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Rorty
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| posted on 19/4/05 at 04:53 AM |
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What are these swivels? Any links or pictures?
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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ned
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| posted on 19/4/05 at 10:03 AM |
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are you referring to an accusump?
Ned.
beware, I've got yellow skin
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ChrisGamlin
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| posted on 19/4/05 at 11:28 AM |
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I dont think so, I assume it is one of these, basically the oil pickup pipe can swivel and
because it is weighted it always swings away from the direction of acceleraration, a bit like a weather vane always pointing into the wind.
It may work fine but I can see potential problems if the swivel doesnt seal properly, cos as soon as you start sucking in air at the swivel its only a
matter of time before it causes damage.
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Rorty
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| posted on 19/4/05 at 01:16 PM |
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quote:
Originally posted by ChrisGamlin
It may work fine but I can see potential problems if the swivel doesnt seal properly, cos as soon as you start sucking in air at the swivel its only a
matter of time before it causes damage.
Exactly my thoughts. I couldn't believe it was actually a swiveling pickup, because, to be free enough to swivel reliably, it would be loose
enough to suck air.
A weighted, swinging pickup with a flexible hose is something that could work I suppose.
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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locoboy
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| posted on 19/4/05 at 01:25 PM |
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Am i reading this right  Is it a pipe that tracks the surge of oil to ensure (theoreticaly) that it will always have oil to suck up?
Doesnt sound too convincing an arrangement to me .............. if i am reading it right that is.
ATB
Locoboy
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ChrisGamlin
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| posted on 19/4/05 at 01:28 PM |
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I guess it might not matter if the swivel sealing face was very close to the bottom of the sump so if it did leak then it would only in effect become
a normal pickup and would usually be submerged in oil?
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Rorty
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| posted on 19/4/05 at 01:59 PM |
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quote:
Originally posted by ChrisGamlin
I guess it might not matter if the swivel sealing face was very close to the bottom of the sump so if it did leak then it would only in effect become
a normal pickup and would usually be submerged in oil?
If that was the case, why bother with the swivel part at all?
It all seems a bit dodgy to me; like a Bandaid. It's the life blood of the engine and not something you'd want to take chances with.
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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darth G-F
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| posted on 19/4/05 at 02:08 PM |
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Thanks guys. Yeah I know it is not the ultimate best solution. I was just wondering if anyone was using it.
They used it the SAE formula car with good success. So it might be a worthy solution. However, I agree that it is far from being the
"best" solution.
If you know anyone that uses it, I'd like to have first hand opinion. If this can't prove reliable, I'll go dry sump and be done
with it.
Hayabusa powered caterham
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ChrisGamlin
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| posted on 19/4/05 at 02:55 PM |
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quote:
Originally posted by Rorty
If that was the case, why bother with the swivel part at all?
It all seems a bit dodgy to me; like a Bandaid. It's the life blood of the engine and not something you'd want to take chances with.
Totally agree, I guess I was trying to say was how it might work (as in not make the engine go pop) rather than work as in be a good solution 
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ChrisGamlin
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| posted on 19/4/05 at 08:49 PM |
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I just remembered, these were discussed as well on the Yahoo BEC list about a month ago, use the "Msg#" box to skip to message number
54918 on 23rd March
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