Oil Filter Technical Characteristics - help needed

G

ghwallice

Hero member
Location
Ipswich
Does anyone know how to get technical specifications on oil filters? Physical dimensions are easy to get, but I'm looking for filter flow rates, flow direction, relief valve pressure, and how fine the filter material is, ie what size particles it will remove.

I'm specifically interested in the Zane Champion C302 vs the Ryco RMZ106 as fitted to Ducati.

Direction would be appreciated.

Regards, Greg
 
There are two basic types of oil filter sizing - absolute and nominal!

An 'Absolute' 20 micron filter will stop 100% of any particles bigger than 20 microns.
Most filter are 'Nominal', so a nominal 20 micron filter will perhaps prevent 80% of 20 micron and larger particles through.

I would bare in mind that any filter is going to cause back-pressure and thus compromise flow. The finer the filter pore size the greater the restriction.

The bypass valve setting is critical, you need the engine spec's to figure that out, unless you do an educated guess?
 
LJ said:
Didn "t  Alto Performance  do an upgrade for the Zanes.?
Click to expand...

I wasn't impressed... ::)

Might have reduced restriction, but did nothing in the way of filtration.  May as well had left it out all together.

piet
 
sfcpiet said:
I wasn't impressed... ::)

Might have reduced restriction, but did nothing in the way of filtration.  May as well had left it out all together.

piet
Click to expand...

I'm with Piet on this one.

I've worked out that if I buy a 16mm screwed steel nipple and 16mm lock nut for about (both for about $15), both used in electrical steel conduit, and replace the nipple in the motor, that the Ryco Ducati ($9) filter will fit straight on. It is a lot bigger filter than the C302, and should give a much larger flow rate whilst still filtering.  I was looking for the specs so I could compare them......
 
Why dont you give Ryco a ring and ask there Technical dept,there an Ozzie company and these tech blokes love to talk about their pet subject.
http://www.rycofilters.com.au/company/ryco-laboratory
 
sfcpiet said:
Might have reduced restriction ... <snip>
piet
Click to expand...

Yeah, as I understand it, that was the objective - nothing more.  FWIW, bit of history plus commentary from Ian Calvert of Inzane Racing:

"This was actually first developed by John Baines and manufactured for the 3 Cross-Baines Racing 750 Formula.  One of the two Baines bikes was eventually sold to Ben Shaughnessy at Alto Racing and became the initial basis of the Alto racing effort, and Ben continued to make and sell the Baines oil "filter" mod.

I spoke to John Baines about why he implemented the oiling mod and he told me about the discussion he had with the Laverda factory about this issue.  The Baines bikes had suffered repeated crank failures, the team even changing cranks in the pits at several rounds!

John described finding signs of overheating in the failed big ends he examined and he ascribed this to insufficient oiling.  He also described how he observed the oil flow to be intermittent under some conditions (running the oil system open circuit, I think) and his solution was the oiling mod.  John claimed that the mod improved the crank failure rate - and so sixteen years later, many bikes now run the "Alto" oil filter mod.

John said the Laverda factory never bought into his theory about the oiling; and I must say, I wasn't convinced either.  So while hardly an "Old Wives? Tale"  - because John Baines' bikes were the fastest Laverdas around -  hardly a proven fact either".
 
You must log in or register to reply here.
Back
Top