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-   -   Diff fluids Just the basics (http://www.rcuniverse.com/forum/redcat-racing-support-427/6278408-diff-fluids-just-basics.html)

Chubbysdad 08-23-2007 06:33 PM

Diff fluids Just the basics
 
I found this and thought it would be helpful for some people on changing out the diff fluids and what thick and thin does.

Front
Thinner :

increases steering into corners (off-power)
if oil is too thin the steering may become inconsistent, especially it can lose forward traction (and steering) during acceleration out of corners

Thicker:

increases stability into corners during braking
increases steering on-power at corner exit
.................................................. .......... ........................
Center
Thinner:

front wheels unload more during acceleration
decreases on-power steering (reduces oversteer)
easier to drive on rough tracks
if a high-power engine is used you could waste too much power and sometime “cook” the oil in the center diff erential because it “overloads”

Thicker:

more all-wheel drive effect
better acceleration
increases on-power steering (reduces understeer)
better suited on high-bite, smooth tracks
car can be more nervous to drive especially if a high power engine is used - you might need to be smooth on the throttle

.................................................. .......... .........................
Rear
Thinner:

increases cornering traction
increases steering into corner
Thicker:

decreases rear traction while cornering
reduces wheelspin

giddyuperic 08-23-2007 07:25 PM

RE: Diff fluids Just the basics
 
That is one of the best post I have seen in a long time thank you. Eric

Chubbysdad 08-23-2007 07:53 PM

RE: Diff fluids Just the basics
 
thanks... I hope it helps.

giddyuperic 08-23-2007 09:17 PM

RE: Diff fluids Just the basics
 
I am sure it wil be a good ref for most people.

AllAboutFunHobbies 08-23-2007 09:54 PM

RE: Diff fluids Just the basics
 
That's super informative, nice post.

bluecaka69 08-23-2007 10:16 PM

RE: Diff fluids Just the basics
 
keep up the good work:D

ranger4x4 01-22-2008 11:30 AM

RE: Diff fluids Just the basics
 
ok i see the differences. thx very informative, now what would give the best all around for just a new basher? if my diffs have grease in them from factory what would be my best choice?

{GBI}Harryball 01-22-2008 12:11 PM

RE: Diff fluids Just the basics
 
Nice, this should help lots of people. Thanks for the info. :)

Chubbysdad 01-22-2008 07:10 PM

RE: Diff fluids Just the basics
 
ranger.. what car do you have? There are different fluid set ups for different cars.

ranger4x4 01-22-2008 08:03 PM

RE: Diff fluids Just the basics
 
i got the volcano sv

ehroof 01-22-2008 08:07 PM

RE: Diff fluids Just the basics
 
you need to use very thick fluid in those diffs, your better off using diff grease, not fluid.

ranger4x4 01-22-2008 08:08 PM

RE: Diff fluids Just the basics
 
ok thx

5lagd 01-22-2008 10:07 PM

RE: Diff fluids Just the basics
 
Ok I'll be the idiot and ask the question....................... how do you change the fluids? and do they need to be changed if i have never changed them?
lol

ehroof 01-22-2008 10:13 PM

RE: Diff fluids Just the basics
 
lmao, you take the diff out of the diff housing, its the small circle with the small spyder gears inside of it, fill it will fluid or grease them up, and you dont really need to change it, it will give you better performance though

Mickstix 01-19-2010 01:03 AM

RE: Diff fluids Just the basics
 
Anyone know what/if the Monsoon (1/8 Truggy) comes with in the diffs from the factory? They dont come dry do them? Thanks for any info!

chevyderek72 01-28-2010 10:58 PM

RE: Diff fluids Just the basics
 
They shouldnt come dry, but its a mystery what weight it is. I never had a problem with stock fluid, but you could always replace it to get the desired effect you want.

Mickstix 01-28-2010 11:49 PM

RE: Diff fluids Just the basics
 
Thanks for the info Derek! Im just bashing for now, so I just wanted to be sure I wasnt gonna burn one up if they came dry.. I'm gonna pick up some differnt weight diff lubs eventually, but for now I'll prolly just leave it alone. Thanks again!

chevyderek72 02-14-2010 09:39 PM

RE: Diff fluids Just the basics
 
Hey no problem, ya if your bashing its not a big deal, but i fill my diffs just so the wheels dont spin free if they do.

Chizzler 02-15-2010 09:09 AM

RE: Diff fluids Just the basics
 
Since we're talking diff fluids, Ijust opened up the diff's on my Backdraft 8e and found the rear had very little grease (red in color)and the front had no visible signs of any lubricant. Is that something to be worried about?

I've run the buggy through a couple charges on the battery so far. Iended up adding some valvoline general purpose grease to the front and rear gears while I was in there.

chevyderek72 02-24-2010 11:21 AM

RE: Diff fluids Just the basics
 
Its best to put some silicone diff fluid in, grease will just keep it lubed and spinning freely. But silicone diff fluid will change the characteristics of how the car runs.

dropkin54 03-30-2010 01:39 PM

RE: Diff fluids Just the basics
 
ok so i got my slash 4x4 a couple months back and im ready to put in the diff but what should i do to take out a lot of the slip

zanga254 08-22-2010 11:28 AM

RE: Diff fluids Just the basics
 
Is it ok to run dry, as in w/o grease in the back?<div style="z-index: -1; position:absolute; top:0px; left: 0px; width: 100%; height: 200px;"></div>

Redcat-Derek 08-24-2010 11:06 AM

RE: Diff fluids Just the basics
 
zanga254,

I would recommend at least putting some grease in the diff to keep it lubed. Without some type of lubricant the gears are going to wear faster than normal.

Thanks,
Derek
RedcatRacing<br type="_moz"/>

formula87 08-25-2010 03:41 PM

RE: Diff fluids Just the basics
 

Quote:

ORIGINAL: Redcat-Derek

zanga254,

I would recommend at least putting some grease in the diff to keep it lubed. Without some type of lubricant the gears are going to wear faster than normal.

Thanks,
Derek
RedcatRacing<br type="_moz" />

I would like to know as well what comes in the diffs or what wieght comes in the diffs. I am starting to race my Backdraft 8E at my LHS track and would like some input on the diff oil.

Redcat-Derek 08-30-2010 04:32 PM

RE: Diff fluids Just the basics
 
Hello formula87,

The diffs should come filled with grease, so i would recommend putting some silicone diff fluid in them to tune per your preference.

Thanks,
Derek
RedcatRacing


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