Yes yes yes i know this has been covered many times before.


Am i right in saying the reasoning behind dry sumps in ZX12 and Busa lumps and not in R1's GSXR's etc is purely a question of cost?

R1 engines are redily avaliable for less than a grand where as busa's will set you back 3k?

Certainly in the case of the Busa motor, it's because when the bike motor is put in a car, it is very susceptible to oil surge. If the Busa engine loses oil pressure, even for a short spell, it can very easily damage the bearings, score the crank, and land you with a huge repair bill as the crank can not be reground.
So, a dry sump, or on a smaller budget; a rotating pickup, protects the engine from the problems of oil surge.
As far as I know, R1, Blade, etc. motors are less susceptible to oil surge, and as such, do not require a dry sump. It's not a money thing - after all, it would be stupid lunching one blade motor after another just because a reusable dry sumo system cost the price of one blade engine. You may as well use a dry sump on the first engine and not have it blow up.

quote:

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Originally posted by adamhay
Certainly in the case of the Busa motor, it's because when the bike motor is put in a car, it is very susceptible to oil surge. If the Busa engine loses oil pressure, even for a short spell, it can very easily damage the bearings, score the crank, and land you with a huge repair bill as the crank can not be reground.
So, a dry sump, or on a smaller budget; a rotating pickup, protects the engine from the problems of oil surge.
As far as I know, R1, Blade, etc. motors are less susceptible to oil surge, and as such, do not require a dry sump. It's not a money thing - after all, it would be stupid lunching one blade motor after another just because a reusable dry sumo system cost the price of one blade engine. You may as well use a dry sump on the first engine and not have it blow up.

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this is the first place I found when putting dry sump hayabusa in google!

I am sure there are more out there, but it'll give you an idea!

http://www.bigccracing.com/shop/product.asp?idproduct=90&source=thumb

Steve

edited to add - http://www.bigccracing.com/shop/product.asp?idproduct=204&source=thumb this is the only thing I can find on the ZX12R sump... (on that site!)

[Edited on 6/6/07 by worX]

quote:

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Originally posted by worX
this is the first place I found when putting dry sump hayabusa in google!

I am sure there are more out there, but it'll give you an idea!

http://www.bigccracing.com/shop/product.asp?idproduct=90&source=thumb

Steve

edited to add - http://www.bigccracing.com/shop/product.asp?idproduct=204&source=thumb this is the only thing I can find on the ZX12R sump... (on that site!)

[Edited on 6/6/07 by worX]

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It's not just the sump pan you need to think of . .. there's the scavenge pump, how it's powered, tanks, pipes, and everything else you need.
Certainly, as far as a Busa is concerned, I would only use a dry sump that's driven off the water pump drive(seen several cases of belt driven dry sump systems where the belt/pulley/bolt has failed - all motors were knackered). These water pump drive driven oil scavenge pumps necessitate a seperate electric water pump and controller.

The rotating pick-ups are adequate in most circumstances but they do not work as well as a dry sump. And they are no good where high lateral G forces are experienced, e.g. winged single seater sprint cars as they feed the oil pump directly, not via a big oil tank.

It would be easier to offer advice if you said what you have and how you are planning on using it

Well at the moment i have a dream and a hope that that my bank manager will be kind to me

But as for plans i'm looking at a MNR vortX of some description.

Speak to Holeshot, they use a swinging pick up pipe and not a dry sump.

Lyn.

You also get a shallower engine if you fit a dry sump which may be the difference between needing a bonnet hole / bulge, or not.

[Edited on 6/6/07 by ChrisGamlin]

Cheers guys.

Been speaking to a mate of mine who runs the car dyno at PDQ's over the weekend and have a few options to think about now.

I've been using a Powertec baffled sump for a year with no problems, but no track days either. For road use it's fine.

Has no-one mentioned that Pace make dry sumps for these applications?

well let me be the first.

They have spruced up their website too, for what it is worth. Good to talk to for advice.
Matt