Cs vs cst viscosity8/27/2023 the pro setups are handy for piston/spring combos, but you still havce to adjust the fluids. Throw something close in, then adjust from there. You'll have to adjust your fluids up/down for track temps anyways. If you're just copying pro setups from the net, don't sweat it. And he makes rare diff lubes like 4000, 6000, etc. How to Convert Centipoise to Pascal Second. Water has a viscosity of 0.0089 poise at 25 C, or 1 centipoise at 20 C. When I increase by 50 cst in my shocks to fine tune, I can be certain I got it right. A centipoise is one millipascal second (mPas) in SI units. I switched to PTRC, who actually gets his CST readings right, and have had far nicer results consistantly. If you're really concerned about getting the #'s right, just switch to PTRC silicone fluids. I've had all kinds of irregular results using that fluid, but not as bad as Ofna. (Could have been my fellow racers messing with me, we've done worse) I've had that happen a dozen times with AE/Losi/Ofna wt oils. Then you add that fluid and the shocks feel way to stiff, like you went up 150cst. Have you ever had your shocks allmost perfect, maybe you just need 50cst more. It deosn't matter what the chart, or the #'s on the side of the bottle mean, if they're bottled by some idiot in the basement that can't tell the difference between a drum of 25 wt and a drum of 45wt oil. Download Table Kinematic viscosity (cSt) of diesel fuel and the prepared nanoemulsions of different water contents at different temperatures. Losi and Ae have a kid in the basement that rubs some oil on his forehead and says: "Yup, that feels like 40wt." Then he bottles it as such. Probably way more info than you wanted, but I figured I'd put it out there anyway. Unfortunately, that's not the case, so it's best to stick with one brand of fluids, so you have a reference point for your particular vehicle and setup. For practical reasons, we usually use centipoise and centistokes as units for dynamic and kinematic viscosities, respectively. We wouldn't have to worry about different brands at that point. Ideally, all of the oils that we use for our RC cars would be rated in centipoise. Although the two terms are regularly interchanged, which is further complicated due to 1 cP being equal to 1 cSt, they are in fact two slightly different terms.ĬP is the expression for dynamic viscosity, or absolute viscosity of the oil, and is the measure of the fluids resistance to flow.ĬSt is the expression for Kinematic viscosity, which is the ratio of a fluids viscous force to it's interial force. The term viscosity refers to the thickness or flow-ability of a liquid. The proper way to identify oil viscosity, in cgs units, is either in centistokes (cSt), or more appropriately, centipoise (cP). It makes calculations inaccurateĮx: Losi 30wt is equivalent to AE 27.5wtAlso, oil "weight" is not a standard unit of measure, which is why there is such variation between brands. No shock oil company uses the same WT standard.
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