Losi Smart Diff - Page 2 - RC-Monster Forums

RC-Monster Mike · 03.16.2009, 02:05 PM

Hmm. Well then, wouldn't the same braking forces prevent the front diff from "unloading" as well? I guess it makes sense - but is only useful if you don't have any front brakes at all(so it sounds smart, but it really doesn't sound like it does a whole lot in reality). Sounds like it isn't as smart as I thought it was. :)

GO-RIDE.com · 03.16.2009, 03:29 PM

Quote:

Originally Posted by RC-Monster Mike

Hmm. Well then, wouldn't the same braking forces prevent the front diff from "unloading" as well? I guess it makes sense - but is only useful if you don't have any front brakes at all(so it sounds smart, but it really doesn't sound like it does a whole lot in reality). Sounds like it isn't as smart as I thought it was. :)

It was designed for nitro and definitely does not perform like a one-way. Any time power is applied (fwd/brk/rev) it acts like at least 10,000 wt. However, off power it acts like 1,000. So, although it does not separate the brakes front to rear it does allow the car to turn much better off power. And, it is also much better turning on power. So, ultimately it's not perfection for e-conversions, but is a huge improvement.

After testing my SD in both the center and then the front, I'm really liking it in the front of my e-8ight. I would probably purchase a second SD for the center, but I'm waiting on reviews of the Slipperential.

Jabe · 03.17.2009, 09:49 AM

Could anyone take some measurements? I want to know, if it will fit Hyper housings.

lucias · 03.24.2009, 04:10 PM

So if I get the front SD this should help some with my front end ballooning and help with steering through corners vs plowing.. I think it's worth a shot plus they sound like they will handle more abuse..

I think I will order one when I order my 8ight 2.0 (truggy or buggy)..

GO-RIDE.com · 03.24.2009, 04:33 PM

I don't know if they will take more abuse. The gears are actually smaller in the SD because a lot of the diff housing space is taken up by the ramp mechanism.

Shark413 · 03.24.2009, 05:52 PM

Quote:

Originally Posted by GO-RIDE.com

I don't know if they will take more abuse. The gears are actually smaller in the SD because a lot of the diff housing space is taken up by the ramp mechanism.

Here is a comparison of the Smart Diff gears and the standard diff gears. You can see there is a big difference in size. At least there made of steel, K-Cars and some Jammins use aluminum gears and brushless power is really hard on them.

sjcrss · 06.11.2009, 03:38 PM

Does any one know if the smart diff case is the same size as a hyper 7 or ofna diff case....I would like to know , because I have a idea, but want to make sure before i purchase a smart diff....any help would be appreciated..

stum · 06.11.2009, 07:29 PM

I tore a set of the smart diffs up in the center of my 8ight-e, they sent me new ones.. but I'm not sure if I even want to bother. I will say a bunch of guys tested these under the clock and the smart diffs actually turned in slower lap times. They tried in both buggy and truggy and ran all the same variables and tons of laps and took averages to keep it fair. Mind you the smart diff didn't loose by much only .5 seconds but a well tuned silicone setup did the job better.

Just figured I'd throw this out there :)

sjcrss · 06.11.2009, 10:32 PM

I have heard a lot of good things about the smart diff, by any chance stum, do you know if the diff cup is the same size as a hyper 7 diff cup, along with the 4 hole bolt pattern for the ring gear...... I'm still contemplating something, and would like to know these dimensions.before i purchase a SD...thanks to anyone who has this info...

lincpimp · 06.11.2009, 11:12 PM

If the SD is designed to fit in the eight vehicles it will fit in the hyper 7 but will need shims to take up the slack as the losi diff is shorter overall. If it fits the std spurs for the losi those have the same bolt pattern as the ofna/kyosho.

I would like to try one of these in my Muggy... Wonder if it will handle the 1521 on 6s.

BL_RV0 · 06.11.2009, 11:55 PM

Since you don't race, would it make a noticeable difference?

lincpimp · 06.11.2009, 11:58 PM

Quote:

Originally Posted by BL_RV0

Since you don't race, would it make a noticeable difference?

I would like to see how it does as a center diff. Fully locked (or whatever it can do) on power would limit the front wheels blowing up, and it would still turn well off power.

Unsullied_Spy · 06.12.2009, 02:26 AM

Quote:

Originally Posted by Jabe

Could anyone get some measurements?
Im wondering, if it will fit my Hyper... I have heard rumor, that its too big to fit Hyper housings...

Why not just buy an Ofna Torsen front diff? It will drop right in and work as well or better. http://en.wikipedia.org/wiki/Torsen They're good for performance, no doubt about that, but you will have to re-learn how to drive your Buggy.

Will these fit the Muggy? Mine has an aweful time trying to put down the power, especially in corners.

sjcrss · 06.12.2009, 05:43 AM

thanks guys for the info, I think I'm going to purchase one, and give it a try, stay tuned as i will be starting a thread on this......

Jabe · 06.12.2009, 09:02 AM

Quote:

Originally Posted by Unsullied_Spy

Why not just buy an Ofna Torsen front diff? It will drop right in and work as well or better. http://en.wikipedia.org/wiki/Torsen They're good for performance, no doubt about that, but you will have to re-learn how to drive your Buggy.

Will these fit the Muggy? Mine has an aweful time trying to put down the power, especially in corners.

Well i have torsen as my centerdiff. I think there is bit difference with torsen and "smart diff", i mean its not the same.