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-   -   The Silicone Oil Converter (http://www.oople.com/forums/showthread.php?t=5112)

aaron_ 21-08-2007 12:10 PM

The Silicone Oil Converter
 
I guess you may have experienced the following situation: You just borrowed or looked for a new setup-sheet, and all shock oil measurements are in "wt", but your pit box only contains bottles with "cps" brandings... or just the other way round ;)

So how can you convert those numbers? There are lot's of cps-wt tables on the web, but most of them are very inaccurate to the decimal place only, and all of them top out at around 800cps/60wt (not too good for those with the "smelly things" ;) )

I recently wrote a tool to cope with such situations. It accurately converts cps to wt and wt to cps to eliminate the guesswork - have a look at it here:


http://www.offroad-cult.org/Special/...hnung/logo.gif
Silicone Oil Converter

Northy 21-08-2007 02:31 PM

Is that where you got your figures from? There are a lot of generalisations in there.

When I measured AE and Losi oil the relationship was as close to linear as you can expect for something that is mass produced. It was also done in a temperture controlled room using calibrated equipment calibrated to traceble standards.

And MY figures do not agree with yours! ;)

G

bretts 21-08-2007 03:45 PM

so how different are Losi and AE oils?

Lee Martin 21-08-2007 03:55 PM

around 5wt aint they?

millzy 21-08-2007 04:00 PM

losi is 5wt more than ae if i remeber

aaron_ 21-08-2007 04:47 PM

Northy, you do not compare associated to losi shock oil with this converter!
You can compare the "cps/cst" Value some manufactorers give, to the "wt" rating that some other manufactorers state.
I've been told that Associated recently marks cps and wt readings - but I haven't seen one of these new bottles yet, so I can't comment on that.

Based upon TWF8's measurements of different manufactorer's oils (see the link), I came to the conclusion that accuracy, the converter gives is sufficient, since the "real" viscosity may be anywhere between +/- 2,5wt, not even considering temperature.

Northy 21-08-2007 05:34 PM

So who's 'wt' does your convertor convert cp to? :confused:

G


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