phelpsa
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| posted on 13/7/10 at 07:54 PM |
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Chopped and baffled sump: Opinions
I've chopped and baffled the sump for the GSXR 1100 engine, as well as made up a baffle plate. Can anyone see any issues before I bolt it onto
the car? I've never done anything like this before but I was half copying an old sidecar setup....
Cheers, Adam
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phelpsa
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| posted on 13/7/10 at 07:56 PM |
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Baffle plate:
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tomgregory2000
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| posted on 13/7/10 at 07:59 PM |
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Just my opinion but baffels WITHOUT trap doors is doing half a job and you have reduced the oil capacity which is not good
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phelpsa
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| posted on 13/7/10 at 08:08 PM |
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Here's the sidecar item I had the idea from:
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phelpsa
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| posted on 13/7/10 at 08:14 PM |
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quote:
Originally posted by tomgregory2000
Just my opinion but baffels WITHOUT trap doors is doing half a job and you have reduced the oil capacity which is not good
I couldnt find any photos of bike sumps with trap doors really, I know its not ideal but better than nothing. It was more to recreate the bowl in the
bottom of the sump in which the oil pickup sits.
I realise I have reduced the oil capacity in the sump a little (the bowl on the sump i cut was around half an inch deep), but the oil cooler capacity
has increased by a lot more and I'm planning to overfill the engine as well (as recommended by Z-cars and Big-CC).
Picture showing the bowl i cut off the bottom:
[Edited on 13-7-10 by phelpsa]
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matt_gsxr
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| posted on 13/7/10 at 08:47 PM |
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Adam,
Have you added a drain plug? I see you removed the one that you had.
Just to add some datapoints.
I know my engine is slightly different, but...
At Abingdon I ran the stock sump (which is similar to yours) with a baffle like yours. On this occasion I had a standard oil pressure sensor (10psi
perhaps), and it stayed off all day.
At Llandow I ran with a 2inch sidecar billet sump (actually two billet sumps bolted together but the top one had its bottom cut out). I had some
baffling (ex-sidecar), and ran a 35psi oil pressure switch. On this occasion the light was coming on going into the bus-stop (this is an extreme of
deceleration maybe 100mph down to 20mph), and stayed lit (around some of that bend). I overfilled a bit but I couldn't get rid of it
completely. This was confused as I was burning a fair amount of oil.
I don't have any vertical baffles.
I think the problem for me is that under heavy braking the oil flies forward into the clutch area. So I bought an Accusump. I haven't tested
with it yet.
I do think a 30psi oil switch with a big bright light is a good idea, the only problem being that it comes on at idle once the oil is warm, which is a
bit annoying (though not a problem). It also seems that these engines are fairly robust!
Matt
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matt_gsxr
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| posted on 13/7/10 at 08:48 PM |
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Oh! I just saw your sump drain.
Matt
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phelpsa
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| posted on 13/7/10 at 09:03 PM |
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Thanks a lot Matt! Where did you get your higher rated pressure switch? I've got an extremely bright oil pressure light directly in front of the
driver, but obviously its no use if it doesn't come on until the pressure is dangerously low!
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matt_gsxr
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| posted on 13/7/10 at 09:17 PM |
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I can't remember, but most of the usual suspects supply them.
merlin_oil_switch
I think you could do cheaper than this one (demon tweeks seem to be cheaper).
I have a gauge and normally the oil sits above 60psi, so 30psi tells me that I am pumping air.
Its worth putting the switch into the main oil gallery. You can get at this by replacing one of the screw in core plugs (M16 thread on mine). This
seems to react quicker than the gauge, which is mounted after the pump output and before the oil cooler.
Accusump ended up costing about £320 (with the EPC valve, and appropriate hoses and adapters) and adds weight, so you don't want to go down this
route unless you have to.
Only my experiences and guess work.
Matt
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phelpsa
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| posted on 13/7/10 at 09:29 PM |
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quote:
Originally posted by matt_gsxr
I can't remember, but most of the usual suspects supply them.
merlin_oil_switch
I think you could do cheaper than this one (demon tweeks seem to be cheaper).
I have a gauge and normally the oil sits above 60psi, so 30psi tells me that I am pumping air.
Its worth putting the switch into the main oil gallery. You can get at this by replacing one of the screw in core plugs (M16 thread on mine). This
seems to react quicker than the gauge, which is mounted after the pump output and before the oil cooler.
Accusump ended up costing about £320 (with the EPC valve, and appropriate hoses and adapters) and adds weight, so you don't want to go down this
route unless you have to.
Only my experiences and guess work.
Matt
I was hoping to replace the standard switch with the higher pressure one and use the port in the main gallery for an oil pressure gauge. Not knowing
exactly where the original switch is i dont know whether this is possible....?
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matt_gsxr
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| posted on 14/7/10 at 12:07 PM |
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My experience would indicate that a gauge is interesting, but a switch is important.
I'm not sure where the original switch is on yours, mine was on the underside of the original sump, clearly not the same for the oil-cooled
model.
Regarding where, there are loads of ways of doing this and it probably isn't too critical as 30psi is still lots of pressure.
If you mount the sensor for a gauge straight onto the engine, then they do seem to shake themselves apart, so most people mount them on the chassis on
the end of some braided hose.
Matt
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