|
#1
|
|||
|
|||
90s shock oil measures compared with modern shock oil measures
Hi All,
6 months into my return to model car racing (boy it is tough now) and I am still using my Losi shock oil from back in the day. My question is, its viscosity measures are 25w 30w 40w etc. whereby modern oil is rated at 250cst, 300cst, 400 cst etc. it seems So my question is, are they roughly equivalent i.e. 25w = 250cSt 30w = 300cSt 40w = 400cSt And why the different measure ?! Many thanks in advanced Adrian |
#2
|
||||
|
||||
oil chart
__________________
Yokomo YZ2's. CaL2 and DTM2. Kyosho lazer zx Cat 2000 RC10 Worlds RC10 B3 Cougar 2's Topcat Tamiya DT02 - use as a door stop. Tamiya TL01 - paper weight. Tamiya Mini - awesome fun to race THR - Tudor-Hart Racing - Custom RC products - find us on Facebook. SHRCCC Committee Member- Track features - design and build. Returning racer after 25 year break - miss my Optima Mid Custom Special, but not brushed motors & SCE cells. www.shrccc.co.uk |
#3
|
||||
|
||||
You can still buy the old weight oils I use the TLR packs you can get from JEmodels.
I've got no idea what the conversion is but I don't think you just add a couple of 0's on the back
__________________
My feedback feel free to add anything http://www.oople.com/forums/showthre...863#post861863 |
#4
|
||||
|
||||
I use AE oils. On the bottles of AE oils it gives you the weight and the CST on the bottle so you have both
|
#5
|
||||
|
||||
I just look at the associated bottles as they have both values on the bottles. These are whats on some ive got from online.
22.5 is 238 27.5 is 313 30 is 350 32.5 is 388 35 is 425 37.5 is 463 40 is 500 42.5 is 538 45 is 575 47.5 is 613 50 is 650 55 is 725 60 is 800
__________________
www.kamtec.co.uk www.fibre-lyte.co.uk answer-rc.com/uk/en/ Answer UK team driver Designer of the Lazer ZX/ZXR carbon fibre tub chassis Designer of the Lazer ZXRS |
#6
|
||||
|
||||
Quote:
I'm also unsure on the older Losi scales, but suggest its also not quite linear to match CST as with AE. One thing I've noticed is that some oils (core rc) do not seem to match CST scale that others use. They are a bit thinner for the same CST rating, and much more subject to temperature variation. Whichever brand you use its always best to stick to the same brand to ensure consistency of the ratings through the range.
__________________
-------------------------------------------------------------------------------------------------------------------
Team Yokomo - YZ-2CAL3 | YZ-2DTM3 | YZ-4SF2 | YZ-2T | YZ-2DTM Worlds | YZ-2DTM x2 | YRX-12 x2 ------------------------------------------------------------------------------------------------------------------- 10electric | Batley Buggy Club | YORCC | RHR | MB Models --------------------------------------------------------------------------------------------------------------- |
#7
|
|||
|
|||
FWIW oil Wt is a made up "standard" and has little or few controls or standardised tests, So AEs Wt is different to Losis and so on.
cSt is Centistokes, and has an official international standard and test procedure. There shouldn't be any variation beyond tolerancing between two bottles of 250 cSt oil at room temperature. (All sorts of things happen when you move away from room temperature and/or start using the oil as the compostion of the oil and additives used will affect how viscosity changes due to temperature/time/contamination/etc) |
#8
|
||||
|
||||
TBH best way forwards is to test all variants until you find one that works for you. I find associated/schumacher and losi work pretty much the same in small bore shocks, big bore i admit do notice fractional changes so stick with sworkz oil in those.
__________________
www.kamtec.co.uk www.fibre-lyte.co.uk answer-rc.com/uk/en/ Answer UK team driver Designer of the Lazer ZX/ZXR carbon fibre tub chassis Designer of the Lazer ZXRS |
#9
|
||||
|
||||
Best value oil is ArrowMax - Massive bottles and available at RudeBits And it is real good too
__________________
|
#10
|
|||
|
|||
Thanks for all the advice, wow!
Glad I didn't trust this alone, As I did not realise using the old measure, shock oil viscosity varied between brands Many thanks everyone |
|
|