R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 10-01-2014, 07:20 AM   #796
Tech Master
 
slakr's Avatar
 
Join Date: Jan 2007
Location: NC
Posts: 1,631
Trader Rating: 25 (100%+)
Default

Quote:
Originally Posted by TB03Racer09 View Post
You won't have to upgrade anything for a 21.5t. I have been running my tb04 (same drivetrain as the evo6) for over 3 months now with a 21.5t and all the internal gears, ring and pinions and bevel gears have no signs of wear. My car is quieter than most belt drives that run 21.5t at the local track
That's good to hear, thanks. I guess from reading portions of the thread it seemed as there was a need to get down on the internal ration in order to efficiently run the higher turn (21.5) motors (wasn't really aware of any wear issues).

Maybe I would just be better off with the TB04 PRO II to help with making minimum weight.
__________________
AE B6D,TC7|Mugen MBX7TR Eco|JQ THE Car WE,eCar WE
Tim aka "slakr" ROAR No. 3-119960
slakr is offline   Reply With Quote
Old 10-01-2014, 07:45 AM   #797
Tech Elite
 
metalnut's Avatar
R/C Tech Elite Subscriber
 
Join Date: Feb 2013
Location: Seattle
Posts: 2,726
Trader Rating: 36 (100%+)
Default

Quote:
Originally Posted by slakr View Post
That's good to hear, thanks. I guess from reading portions of the thread it seemed as there was a need to get down on the internal ration in order to efficiently run the higher turn (21.5) motors (wasn't really aware of any wear issues).

Maybe I would just be better off with the TB04 PRO II to help with making minimum weight.
I run my EVO.6 in VTA/USGT with a 25.5. Yeah, the pinion/spur combo took a bit of trial and error and range is limited, but a 78T spur and mid-50s pinions get me there with no problems. The car is porky, though, with a 7000mah battery and two gear diffs (front and rear), I was ~40g overweight. The Hiro Seiko screw kit helped, but I'm still a bit over. Either way, good car, not sure why you'd want the Pro II instead.
__________________
Team Nervous | Team Scruffy | Team Orange

"If you ain't first, you're last!"
- Ricky Bobby
metalnut is offline   Reply With Quote
Old 10-01-2014, 07:45 AM   #798
Tech Regular
 
TB03Racer09's Avatar
 
Join Date: Mar 2011
Location: Sydney Australia
Posts: 408
Trader Rating: 1 (100%+)
Default

When you said 'internal gears', I thought you meant the gears inside the diff which made me think you were worried about durability (some people don't like those gears plastic for some reason), hence me telling you that the drivetrain will handle a 21.5t no problem.

If you want a fdr lower than 3.50 on a tb04, you will have to change the ring and pinion to evo5 or evo4 parts. TBEVO5 gear #51255 , TBEVO4 gear #51109 . These require slight modification in the form of removing the lip on the bevel gear.

Beware that the tb04 chassis is actually very heavy and depending on your electronics, battery and body, you might find your car to be quite over weight. My TB04 with Tamiya Subaru BRZ R&D Sport body and 290g Orca 6200mah battery weighs in at 1520g race ready, 70g overweight! The chassis has no extra upgrades other than DCJ's and aluminium toe blocks.

You can remove 40g of weight from the chassis with titanium screws and aluminium half shafts, transmission shafts and pilot shafts but when you start adding up the costs, you might find that you would prefer to just go for the tb evo 6 instead
TB03Racer09 is offline   Reply With Quote
Old 10-01-2014, 07:50 AM   #799
Tech Master
 
slakr's Avatar
 
Join Date: Jan 2007
Location: NC
Posts: 1,631
Trader Rating: 25 (100%+)
Default

Thanks for all the info guys... much appreciated!
__________________
AE B6D,TC7|Mugen MBX7TR Eco|JQ THE Car WE,eCar WE
Tim aka "slakr" ROAR No. 3-119960
slakr is offline   Reply With Quote
Old 10-07-2014, 10:09 PM   #800
Tech Elite
 
metalnut's Avatar
R/C Tech Elite Subscriber
 
Join Date: Feb 2013
Location: Seattle
Posts: 2,726
Trader Rating: 36 (100%+)
Default

Although my EVO is doing well, I'm fighting for on-power steering. I decided to give up my front gear diff with Spec-R 1 million oil for something heavier, and I refilled the diff with Gravity RC 2.5 million oil. Well, unless I'm crazy, the diff doesn't feel much stiffer. Is it because the EVO.6 diffs don't take much fluid, or is it because the gears are small? It could be that the Spec-R oil was actually thicker than labeled, I suppose. Either way, anyone notice anything similar? Anyone else running a diff up front? I may just try a spool to see if I can put down post-mid-corner power, but I'm worried about losing all corner entry.
__________________
Team Nervous | Team Scruffy | Team Orange

"If you ain't first, you're last!"
- Ricky Bobby
metalnut is offline   Reply With Quote
Old 10-08-2014, 09:20 AM   #801
Tech Addict
 
Wade....'s Avatar
 
Join Date: Nov 2011
Location: St. Paul
Posts: 565
Trader Rating: 2 (100%+)
Default

Did you completely clean the diff out before refilling? Not getting all the old fluid out can really throw off the new fluids viscosity sometimes.
__________________
Wade Huesman, TCORC Secretary/Pencil Pusher
Wade.... is offline   Reply With Quote
Old 10-08-2014, 10:45 AM   #802
Tech Elite
 
metalnut's Avatar
R/C Tech Elite Subscriber
 
Join Date: Feb 2013
Location: Seattle
Posts: 2,726
Trader Rating: 36 (100%+)
Default

Quote:
Originally Posted by Wade.... View Post
Did you completely clean the diff out before refilling? Not getting all the old fluid out can really throw off the new fluids viscosity sometimes.
I did, yeah. Drained the body overnight and cleaned all the gears off with motor spray.
__________________
Team Nervous | Team Scruffy | Team Orange

"If you ain't first, you're last!"
- Ricky Bobby
metalnut is offline   Reply With Quote
Old 10-08-2014, 11:06 AM   #803
Tech Elite
 
CraigMBA's Avatar
 
Join Date: Mar 2003
Location: Valley of the Dirt, CA
Posts: 2,832
Trader Rating: 22 (100%+)
Default

Quote:
Originally Posted by metalnut View Post
Although my EVO is doing well, I'm fighting for on-power steering.
I would change the rear sway bar, increase it one size.

Did your driveline free up after a couple of packs like I said it would?
__________________
* Cee Lo Dizzle, the Secizzle * Red Bull * Team Homies * Pintura de Negro Mate * USVTA #152
CraigMBA is offline   Reply With Quote
Old 10-08-2014, 11:21 AM   #804
Tech Elite
 
niznai's Avatar
 
Join Date: Feb 2009
Location: All over the place
Posts: 2,746
Default

Quote:
Originally Posted by metalnut View Post
Although my EVO is doing well, I'm fighting for on-power steering. I decided to give up my front gear diff with Spec-R 1 million oil for something heavier, and I refilled the diff with Gravity RC 2.5 million oil. Well, unless I'm crazy, the diff doesn't feel much stiffer. Is it because the EVO.6 diffs don't take much fluid, or is it because the gears are small? It could be that the Spec-R oil was actually thicker than labeled, I suppose. Either way, anyone notice anything similar? Anyone else running a diff up front? I may just try a spool to see if I can put down post-mid-corner power, but I'm worried about losing all corner entry.
With a heavier oil you're going to lose more steering. I would try a different caster block.
__________________
Team Greasy Weasel

The best upgrade to any car is some driver skill.
niznai is online now   Reply With Quote
Old 10-08-2014, 06:00 PM   #805
Tech Elite
 
metalnut's Avatar
R/C Tech Elite Subscriber
 
Join Date: Feb 2013
Location: Seattle
Posts: 2,726
Trader Rating: 36 (100%+)
Default

Quote:
Originally Posted by CraigMBA View Post
I would change the rear sway bar, increase it one size.

Did your driveline free up after a couple of packs like I said it would?
So do you run a front diff? I can try playing with the sway bars, haven't tried that yet.

I did switch from stock springs to Spec-R 2.6F/2.5R, which made the car ~0.5 faster, but made it oversteer during the main when our traction got crazy sticky. Since then I switched to Yokomo Pink F/Blue R, which made the car 0.2 slower but did make it a lot more consistent and stable all evening.

But compared to the 3 guys ahead of me, my car pushes a lot on power. My front gear diff came into the discusison spotlight when I was talking with them about my handling.

And yes, the driveline is pretty free now, though I do have plastic dust in both gear cases. Given how notchy the gears were, I'm not too worried as I figure it's just the imperfections getting filed down. I have cleaned the cases and lubed the gears with some teflon garage door lube (dries out to dry), so we'll see how it looks after the next race night.
__________________
Team Nervous | Team Scruffy | Team Orange

"If you ain't first, you're last!"
- Ricky Bobby
metalnut is offline   Reply With Quote
Old 10-09-2014, 01:21 AM   #806
Tech Master
 
Join Date: Jun 2008
Location: santa monica / manchester
Posts: 1,189
Default

Quote:
Originally Posted by metalnut View Post
So do you run a front diff? I can try playing with the sway bars, haven't tried that yet.

I did switch from stock springs to Spec-R 2.6F/2.5R, which made the car ~0.5 faster, but made it oversteer during the main when our traction got crazy sticky. Since then I switched to Yokomo Pink F/Blue R, which made the car 0.2 slower but did make it a lot more consistent and stable all evening.

But compared to the 3 guys ahead of me, my car pushes a lot on power. My front gear diff came into the discusison spotlight when I was talking with them about my handling.

And yes, the driveline is pretty free now, though I do have plastic dust in both gear cases. Given how notchy the gears were, I'm not too worried as I figure it's just the imperfections getting filed down. I have cleaned the cases and lubed the gears with some teflon garage door lube (dries out to dry), so we'll see how it looks after the next race night.
On carpet with good grip and a spool up front the Evo6 has plenty of steering for the guys at our club (17.5 blinky, sorex 32's). Excellent car.
__________________
http://www.theRcRacer.com/

TRF419, TBEvo6, TT02, VDF, TRF501x, TRF201, TRF101, Mi5, X-Ray T4-13, BD7 2014, A700 Evo, WR-02G
Qatmix is offline   Reply With Quote
Old 10-09-2014, 08:07 AM   #807
Tech Elite
 
CraigMBA's Avatar
 
Join Date: Mar 2003
Location: Valley of the Dirt, CA
Posts: 2,832
Trader Rating: 22 (100%+)
Default

Quote:
Originally Posted by metalnut View Post
So do you run a front diff? I can try playing with the sway bars, haven't tried that yet.

I did switch from stock springs to Spec-R 2.6F/2.5R, which made the car ~0.5 faster, but made it oversteer during the main when our traction got crazy sticky. Since then I switched to Yokomo Pink F/Blue R, which made the car 0.2 slower but did make it a lot more consistent and stable all evening.

But compared to the 3 guys ahead of me, my car pushes a lot on power. My front gear diff came into the discusison spotlight when I was talking with them about my handling.

And yes, the driveline is pretty free now, though I do have plastic dust in both gear cases. Given how notchy the gears were, I'm not too worried as I figure it's just the imperfections getting filed down. I have cleaned the cases and lubed the gears with some teflon garage door lube (dries out to dry), so we'll see how it looks after the next race night.
I run a gear diff in the front of my VTA 25.5 car. It's a TB03. I run it in case I get hit by somebody I don't break a C hub.

That dust is normal. Cleaning it out and lubricating it with what you used was a great move, IMO.

Glad your having fun with the car. I get to drive my two (yes two) for the first time either this afternoon or tomorrow at TQ in Chino.
__________________
* Cee Lo Dizzle, the Secizzle * Red Bull * Team Homies * Pintura de Negro Mate * USVTA #152
CraigMBA is offline   Reply With Quote
Old 10-15-2014, 07:49 PM   #808
Tech Adept
 
Join Date: Dec 2012
Location: Montreal, Canada
Posts: 203
Trader Rating: 3 (100%+)
Default

...........................
__________________
Xray T4 2017
Awesomatix A700 L2
Yokomo BD7 2015 Spice FWD
12th scale Roche 2016

Last edited by Quinny45; 10-30-2014 at 07:11 PM.
Quinny45 is offline   Reply With Quote
Old 10-16-2014, 06:18 AM   #809
Tech Master
 
BardSmith's Avatar
 
Join Date: Feb 2012
Location: St. Michael, MN
Posts: 1,076
Trader Rating: 58 (98%+)
Default

I'm not familiar with this chassis, is it suited more for touring car or the slow spec classes like VTA or USGT?
__________________
Brad "Bard" Smith

Destiny, Xenon-USA, Genesis, MMR, On-Road Only!
BardSmith is offline   Reply With Quote
Old 10-16-2014, 07:22 AM   #810
Tech Apprentice
 
Join Date: Feb 2014
Posts: 66
Default

@Metalnut: If you are looking for on-power steering, the most obvious change would be thicker oil in the REAR Diff.
Worst87 is offline   Reply With Quote
Reply



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 06:56 AM.


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

SEO by vBSEO 3.5.0