R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric Off-Road

Like Tree45Likes
Reply
 
Thread Tools Search this Thread
Old 08-18-2014, 10:53 AM   #5386
Tech Master
 
Join Date: Sep 2011
Location: Tennessee
Posts: 1,304
Trader Rating: 8 (100%+)
Default

Quote:
Originally Posted by Matt :-) View Post
Wow !

Thanks for the info Bent.
they are running on astro not dirt im betting something more like 100,000 will work on dirt
evolution03 is offline   Reply With Quote
Old 08-18-2014, 12:52 PM   #5387
Tech Master
 
BentKa's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2011
Location: Norway
Posts: 1,355
Default

Quote:
Originally Posted by evolution03 View Post
they are running on astro not dirt im betting something more like 100,000 will work on dirt
We ran the same 1.000.000 cst at the European Championship as well a month ago which had a non treated clay surface with very low grip and Bar Codes control tires (no additives allowed).

The gears are small and very very smooth with minimal resistance so you need a heavier diff "fluid"

Video of the very first test we did with the center diff at the low grip track at the European Championship (I'll upload it to YouTube as well):
https://www.facebook.com/photo.php?v...type=2&theater

Bent
__________________
Xray XB4 | Xray XB2 | Xray XT2 | Xray XB8 | Xray XB8E | Xray T4 | Xray X12
Factory Team driver for:
XRAY | ORCA | JConcepts | Futaba | FX-Engines | Hudy | G-Force | Maxima Fuel
Hiro Seiko | DubiDesign | Maugrafix | YeahRacing | rcMart | LapMonitor | IB Prostart
Follow Malin on Facebook for race reports and setup tips
BentKa is offline   Reply With Quote
Old 08-18-2014, 01:09 PM   #5388
Tech Master
 
Join Date: Oct 2011
Location: Anaheim Hills, CA
Posts: 1,254
Trader Rating: 36 (100%+)
Default

From those pics, it doesn't look like there is a slipper attached to the center diff. If there isn't, are there different diff gears with the car? I read so much emphasis on having to have the slipper set a certain way otherwise the diff gears break, I'm just wondering what happens if/when the slipper is eliminated and there is only a center diff in its place. Thanks in advance.
ufoDziner is offline   Reply With Quote
Old 08-18-2014, 01:18 PM   #5389
Tech Master
 
BentKa's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2011
Location: Norway
Posts: 1,355
Default

Quote:
Originally Posted by ufoDziner View Post
From those pics, it doesn't look like there is a slipper attached to the center diff. If there isn't, are there different diff gears with the car? I read so much emphasis on having to have the slipper set a certain way otherwise the diff gears break, I'm just wondering what happens if/when the slipper is eliminated and there is only a center diff in its place. Thanks in advance.
Center diff replaces the slipper all together.

The center diff "slips" depending on how thick of a fluid or grease you use.

Same applies here as with the slipper.
The thicker the fluid the less diff action you will get and the more strain you will put on the gears.

A normal planetary diff will always send the greatest amount of torque the way of least resistance.
So using an increasingly thicker diff fluid will put you closer and closer to a 50/50 distribution of torque between front and rear.

Bent
__________________
Xray XB4 | Xray XB2 | Xray XT2 | Xray XB8 | Xray XB8E | Xray T4 | Xray X12
Factory Team driver for:
XRAY | ORCA | JConcepts | Futaba | FX-Engines | Hudy | G-Force | Maxima Fuel
Hiro Seiko | DubiDesign | Maugrafix | YeahRacing | rcMart | LapMonitor | IB Prostart
Follow Malin on Facebook for race reports and setup tips
BentKa is offline   Reply With Quote
Old 08-18-2014, 01:21 PM   #5390
Tech Fanatic
 
Join Date: Jun 2004
Location: Ottawa, Canada
Posts: 897
Trader Rating: 15 (100%+)
Default

Wow, a million cst, does it actually pour out of it's bottle into the diff case or do you need some sort of 'Hudy spoon' to get it out?

Eitherway, I hope this centre diff makes it into production
__________________
Daragh Slowey
22-4 2.0/R10/Scorpion5.5/S6040/Nosram shorty
B5R/R10/LRP8.5/1258TGBlk/Nosram shorty
EB48SL/RX8/TekinT8i/Hitec7599/SMC4500(4S)
Grasshopper/Tekin FX/Twister 27T/FutabaS9551/Speed power
HeavyD99 is online now   Reply With Quote
Old 08-18-2014, 01:28 PM   #5391
Tech Master
 
BentKa's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2011
Location: Norway
Posts: 1,355
Default

Quote:
Originally Posted by ufoDziner View Post
From those pics, it doesn't look like there is a slipper attached to the center diff. If there isn't, are there different diff gears with the car? I read so much emphasis on having to have the slipper set a certain way otherwise the diff gears break, I'm just wondering what happens if/when the slipper is eliminated and there is only a center diff in its place. Thanks in advance.
Same diff gears

They held up just fine once again through this weekends Swedish National Championship on very high grip astro run with Schumacher Mini Spike Yellow as control tires powered by an ORCA TX6.5 with added boost

As I've tried to communicate a seamingly endless amount of times on here; there are no problems with the original pinion/bevel gears or internal satellite/planet gears on a properly setup XB4.

We are still running all stock composite gears with no additional shimming and have done so from the very beginning

Bent
__________________
Xray XB4 | Xray XB2 | Xray XT2 | Xray XB8 | Xray XB8E | Xray T4 | Xray X12
Factory Team driver for:
XRAY | ORCA | JConcepts | Futaba | FX-Engines | Hudy | G-Force | Maxima Fuel
Hiro Seiko | DubiDesign | Maugrafix | YeahRacing | rcMart | LapMonitor | IB Prostart
Follow Malin on Facebook for race reports and setup tips

Last edited by BentKa; 08-18-2014 at 01:47 PM.
BentKa is offline   Reply With Quote
Old 08-18-2014, 01:33 PM   #5392
Tech Master
 
BentKa's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2011
Location: Norway
Posts: 1,355
Default

Quote:
Originally Posted by HeavyD99 View Post
Wow, a million cst, does it actually pour out of it's bottle into the diff case or do you need some sort of 'Hudy spoon' to get it out?

Eitherway, I hope this centre diff makes it into production
What I do is I disassemble the diff and coat every gear/pin/washer with grease, then put in the first gear, add some grease, put in the smaller gears, add grease and then the last gear.

This way you ensure every surface is coated.

And yes you have to "spoon it out" of the bottle…….but that's of course made way easier if the spoon has a "HUDY approved" label on it

Bent
__________________
Xray XB4 | Xray XB2 | Xray XT2 | Xray XB8 | Xray XB8E | Xray T4 | Xray X12
Factory Team driver for:
XRAY | ORCA | JConcepts | Futaba | FX-Engines | Hudy | G-Force | Maxima Fuel
Hiro Seiko | DubiDesign | Maugrafix | YeahRacing | rcMart | LapMonitor | IB Prostart
Follow Malin on Facebook for race reports and setup tips
BentKa is offline   Reply With Quote
Old 08-18-2014, 02:00 PM   #5393
Tech Master
 
EricW's Avatar
R/C Tech Elite Subscriber
 
Join Date: Nov 2006
Location: Meriden, Ct
Posts: 1,870
Trader Rating: 1 (100%+)
Default

If you want to see how heavy weight diff lube is used watch this video

https://www.youtube.com/watch?v=SmfInldgGsc
__________________
Stickas are for straight up suckas......

**** "Luxury" ****
EricW is offline   Reply With Quote
Old 08-18-2014, 02:51 PM   #5394
Tech Addict
R/C Tech Elite Subscriber
 
Join Date: May 2013
Posts: 673
Trader Rating: 16 (100%+)
Default

Are the center diff gears composite?

Is the center diff the same as the front and rear diffs?
__________________
Tekno: NT48, ET48, EB48, SCT410
Xray: 2 XB9E, XB9, XT9 E, XB8 E 2014, 808E, 2 T4, XB4, XB4 2015
Losi: SCTE 2.0, 8T 3.0E, 2 8T 2.0E, Mini8T, 2 Mini8,
Mullet1 is offline   Reply With Quote
Old 08-18-2014, 02:58 PM   #5395
Tech Master
 
BentKa's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2011
Location: Norway
Posts: 1,355
Default

Quote:
Originally Posted by Mullet1 View Post
Are the center diff gears composite? YES

Is the center diff the same as the front and rear diffs? No….but the gears and housing are
Answers in red

Bent
__________________
Xray XB4 | Xray XB2 | Xray XT2 | Xray XB8 | Xray XB8E | Xray T4 | Xray X12
Factory Team driver for:
XRAY | ORCA | JConcepts | Futaba | FX-Engines | Hudy | G-Force | Maxima Fuel
Hiro Seiko | DubiDesign | Maugrafix | YeahRacing | rcMart | LapMonitor | IB Prostart
Follow Malin on Facebook for race reports and setup tips

Last edited by BentKa; 01-02-2015 at 12:21 PM.
BentKa is offline   Reply With Quote
Old 08-18-2014, 03:06 PM   #5396
Tech Addict
R/C Tech Elite Subscriber
 
Join Date: May 2013
Posts: 673
Trader Rating: 16 (100%+)
Default

Quote:
Originally Posted by BentKa View Post
Answers in red

Bent
Disappointed they are composite. Sure hope another cars metal gears will drop in.

Please don't say metal gears aren't needed.....I just WANT metal gears.
__________________
Tekno: NT48, ET48, EB48, SCT410
Xray: 2 XB9E, XB9, XT9 E, XB8 E 2014, 808E, 2 T4, XB4, XB4 2015
Losi: SCTE 2.0, 8T 3.0E, 2 8T 2.0E, Mini8T, 2 Mini8,
Mullet1 is offline   Reply With Quote
Old 08-18-2014, 04:05 PM   #5397
Tech Addict
 
bfong13's Avatar
 
Join Date: Aug 2009
Posts: 611
Trader Rating: 17 (100%+)
Default

After running this car for a few months, these are the things I hope the 2015 car will have:
1. Droop adjustment
2. Floating servo mount
3. Shorty pack option
4. Front and Rear shock towers similar to the Smokem towers
5. Redesigned rear arms so that the lower shock end has two mount points similar to how the front shock end mounts to the front arm
bfong13 is offline   Reply With Quote
Old 08-18-2014, 04:10 PM   #5398
Tech Elite
 
asc6000's Avatar
 
Join Date: Jan 2011
Location: Meridian Idaho
Posts: 3,386
Trader Rating: 15 (100%+)
Default

Quote:
Originally Posted by Mullet1 View Post
Disappointed they are composite. Sure hope another cars metal gears will drop in.

Please don't say metal gears aren't needed.....I just WANT metal gears.
The composite gears are actually quite good but if you want metal you can get em right now XRA335030
__________________
"you reach the limit, you touch the limit, then you pass the limit, now there is a new limit"
Ayrton Senna
asc6000 is offline   Reply With Quote
Old 08-18-2014, 04:40 PM   #5399
Tech Master
 
Join Date: Oct 2011
Location: Anaheim Hills, CA
Posts: 1,254
Trader Rating: 36 (100%+)
Default

Quote:
Originally Posted by BentKa View Post
Same diff gears

They held up just fine once again through this weekends Swedish National Championship on very high grip astro run with Schumacher Mini Spike Yellow as control tires powered by an ORCA TX6.5 with added boost

As I've tried to communicate a seamingly endless amount of times on here; there are no problems with the original pinion/bevel gears or internal satellite/planet gears on a properly setup XB4.

We are still running all stock composite gears with no additional shimming and have done so from the very beginning

Bent
Thanks for the info. I've seen a number of people with failed gears, and others that are fine. I've also read about how the slipper is what is saving the gears (that's the way the posts read to me anyway), which is partly what prompted my question. The other part is that you have 1MM diff fluid, which seems like it would have very little slip. Thanks again.
ufoDziner is offline   Reply With Quote
Old 08-18-2014, 04:43 PM   #5400
Tech Elite
R/C Tech Elite Subscriber
 
Join Date: Aug 2010
Location: Anaheim Ca.
Posts: 3,928
Trader Rating: 138 (100%+)
Default

Wish I still had mine. Good no-nonse car that was super easy to setup and very fast. This HB takes forever to make a change to. If you break, might as well go home. No wonder why Ty has his dad come with him. In case he breaks so he can have 4 hands ripping the thing apart to fix it. When it works it's awesome, but Jesus over engineered to a fault.
__________________
TLR 22T 3.0, 2X Yokomo YZ-2 DTM, B64D (Temporary 4 wheel) YZ-4 SF (please hurry), Mugen MBX7R Eco, Hobbywing, Futaba, LRH Hobbies, Amain Hobbies, iCharger.
jpcopeland1 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
EP buggies thread sim600 Malaysian R/C Racers 3586 03-30-2016 11:53 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 06:53 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net