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aaron_
21-08-2007, 12:10 PM
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/cps_wt_umrechnung/logo.gif
Silicone Oil Converter (http://silicone-oil-converter.offroad-cult.org)

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