R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 01-09-2006, 07:02 PM   #1606
Tech Master
 
Hawk6's Avatar
 
Join Date: Nov 2004
Location: Freeport, IL
Posts: 1,549
Trader Rating: 50 (100%+)
Default

Question on gearing a TB-02 for a silver can motor, carpet road course racing. I've been told the gear ratio should be between 5.4 and 5.0. How do I do this with Tamiya part numbers (for TCS racing).

My TB-02 manual only shows spur gear sizes down to 55T.

Can I use a 52T? If so, anyone know the Tamiya part #? What motor mount holes do I use for 52T spurs?

Thanks.
Hawk6 is offline   Reply With Quote
Old 01-09-2006, 08:45 PM   #1607
zax
Tech Regular
 
zax's Avatar
 
Join Date: Apr 2005
Location: SINGAPORE
Posts: 283
Default

Quote:
Originally Posted by Hawk6
Question on gearing a TB-02 for a silver can motor, carpet road course racing. I've been told the gear ratio should be between 5.4 and 5.0. How do I do this with Tamiya part numbers (for TCS racing).

My TB-02 manual only shows spur gear sizes down to 55T.

Can I use a 52T? If so, anyone know the Tamiya part #? What motor mount holes do I use for 52T spurs?

Thanks.
i not sure about the part #..i know the 52t spur is from f201.. if u using 52t spur , u use the largest pinion which is 25t..it will give u 5.40.. the motor mount hole is (A)...
zax is offline   Reply With Quote
Old 01-09-2006, 08:58 PM   #1608
Tech Master
 
tamiyarcracer's Avatar
 
Join Date: Jan 2003
Location: Auburn, WA
Posts: 1,633
Send a message via Yahoo to tamiyarcracer
Default

Quote:
Originally Posted by Hawk6
Question on gearing a TB-02 for a silver can motor, carpet road course racing. I've been told the gear ratio should be between 5.4 and 5.0. How do I do this with Tamiya part numbers (for TCS racing).

My TB-02 manual only shows spur gear sizes down to 55T.

Can I use a 52T? If so, anyone know the Tamiya part #? What motor mount holes do I use for 52T spurs?

Thanks.
Tamiya had a 27tooth pinion, you can look way back in the thread for the part #
Why do you have to use Tamiya Part#'s?
TCS here in the USA says any manufacturers pinion.
tamiyarcracer is offline   Reply With Quote
Old 01-09-2006, 09:48 PM   #1609
Tech Master
 
Hawk6's Avatar
 
Join Date: Nov 2004
Location: Freeport, IL
Posts: 1,549
Trader Rating: 50 (100%+)
Default

Oh OK. I guess I didn't read the rules closely enough. Thanks.
Hawk6 is offline   Reply With Quote
Old 01-10-2006, 01:53 AM   #1610
Tech Master
 
alana07's Avatar
 
Join Date: Oct 2001
Location: There
Posts: 1,814
Trader Rating: 52 (100%+)
Send a message via MSN to alana07
Default

Quote:
Originally Posted by Hawk6
Question on gearing a TB-02 for a silver can motor, carpet road course racing. I've been told the gear ratio should be between 5.4 and 5.0. How do I do this with Tamiya part numbers (for TCS racing).

My TB-02 manual only shows spur gear sizes down to 55T.

Can I use a 52T? If so, anyone know the Tamiya part #? What motor mount holes do I use for 52T spurs?

Thanks.
here you go.......
if you use 52T spur, you will end up with the following :
25t pinion @ hole A = 5.41
26t pinion @ hole B = 5.2
27t pinion @ hole C = 5
28t pinion @ hole D = 4.82
kawada makes some pinions in Tamiya's AV pitch, among which there's 27T+ 28T as well.
__________________
没有最好,只有更好!!!
alana07 is offline   Reply With Quote
Old 01-10-2006, 02:52 AM   #1611
Tech Rookie
 
Join Date: Jan 2006
Posts: 5
Default

tamiyarcracer.

Thanks for your reply. Just to clarify, are you saying the head of the screw should be on the side of the thrust bearing where the brass ID is NOT flush with the silver outer part. Hope that makes sense. As you say it looks tapered as opposed to the other side which looks flush with the silver outer.

Cheers

Dave
DaveMorris is offline   Reply With Quote
Old 01-10-2006, 09:28 AM   #1612
Tech Rookie
 
Join Date: Feb 2004
Location: Red Dot
Posts: 14
Default

Quote:
Originally Posted by DaveMorris
Hi.

Im currently racing my TBO2R in a UK carpet championship running 27 turn stock motors. It is very competitive against yokomo BD's and TC4's, Im currently placed 7th in a 70 car championship. My problem is that I am regularly shearing the 2mm diff screws. Usually one a meeting. Out of frustration I gave my diffs to my mate who runs an evo 3 and he reckons they are built and tensioned correctly. I have swapped to standard evo3 diff cups from the TBO2R ones but still the screws break. The only thing I can see is that an evo 3 runs no shims according to the manual behind the diff bearings. The TBO2R runs 2 X 0.1mm shims. I have now removed these and have yet to try the car at the next meeting in 2 weeks. Have any of you guys had this problem.

cheers

Dave
Had the same problem, but after changing to HPI Pro4 Differential Screw (A162) all solved... do give it a try...
rcshark68 is offline   Reply With Quote
Old 01-10-2006, 11:44 AM   #1613
Tech Rookie
 
Join Date: Jan 2006
Posts: 5
Default

Thanks for that info. I will order some of those screws and also check which way round the thrust bearing is and hopefully it will be cured. Its the only thing that I can fault the car for. Its awsome on prima felt carpet.
DaveMorris is offline   Reply With Quote
Old 01-10-2006, 01:09 PM   #1614
Tech Master
 
Hawk6's Avatar
 
Join Date: Nov 2004
Location: Freeport, IL
Posts: 1,549
Trader Rating: 50 (100%+)
Default

I agree that the TB-02 is awesome on carpet. I'm no expert, and maybe it's just set-up details that I'm not smart enough to figure out yet, but my Tamiya TB-02 can beat my Associated TC3 and Tamiya Evolution 3 on the same track with the same motors, batteries, gearing, etc. It just seems so smooth.

Like I said, it may just be set-up details that I haven't figured out yet, but my TB-02 is my favorite car.
Hawk6 is offline   Reply With Quote
Old 01-10-2006, 01:11 PM   #1615
Tech Master
 
Hawk6's Avatar
 
Join Date: Nov 2004
Location: Freeport, IL
Posts: 1,549
Trader Rating: 50 (100%+)
Default

By the way, I now have 2 TC3s for sale in the For Sale forums.
Hawk6 is offline   Reply With Quote
Old 01-10-2006, 02:20 PM   #1616
OVA
Tech Champion
 
OVA's Avatar
 
Join Date: Dec 2002
Location: WASHINGTON
Posts: 8,800
Trader Rating: 79 (100%+)
Default HOP Up

Hi
Does anybody here wanted to buy Tamiya Alu. motor mount and steering linkage for TB02.....
__________________
I have not failed. I've just found 10,000 ways that won't work
OVA is offline   Reply With Quote
Old 01-10-2006, 02:44 PM   #1617
Tech Master
 
Hawk6's Avatar
 
Join Date: Nov 2004
Location: Freeport, IL
Posts: 1,549
Trader Rating: 50 (100%+)
Default

How much?

I have an aluminum motor mount on order for my son's TB-02, but I could be interested in the steering assembly. Feel free to post here or PM me.

Thanks.
Hawk6 is offline   Reply With Quote
Old 01-10-2006, 04:06 PM   #1618
Tech Master
 
ford_racing's Avatar
 
Join Date: Aug 2004
Location: Canberra
Posts: 1,480
Trader Rating: 6 (100%+)
Send a message via MSN to ford_racing
Default

Quote:
Originally Posted by tamiyarcracer
Yes this is a problem
I have usually found that the thrust bearing is in backwards.
the screw head should be on the side of the thrust bearing that has the taper on the ID
Also make sure the thrust bearing is well graesed with Aw or something similar.

I found that the car worked flawlessly for me for 7 months then it just started breaking these, I tihnk it came down to me mostly rnning the screw too tight, the diff was almost acting like a spool for me
__________________
ARC R11
Yokomo YRF001
AE B5m
ford_racing is offline   Reply With Quote
Old 01-10-2006, 06:41 PM   #1619
Tech Master
 
tamiyarcracer's Avatar
 
Join Date: Jan 2003
Location: Auburn, WA
Posts: 1,633
Send a message via Yahoo to tamiyarcracer
Default

Quote:
Originally Posted by DaveMorris
tamiyarcracer.

Thanks for your reply. Just to clarify, are you saying the head of the screw should be on the side of the thrust bearing where the brass ID is NOT flush with the silver outer part. Hope that makes sense. As you say it looks tapered as opposed to the other side which looks flush with the silver outer.

Cheers

Dave
Dave, that is correct.
tamiyarcracer is offline   Reply With Quote
Old 01-13-2006, 06:37 PM   #1620
Tech Regular
 
Teehomo's Avatar
 
Join Date: Nov 2005
Location: Sydney, Australia
Posts: 448
Trader Rating: 24 (100%+)
Default Drivetrain

Hi all. A quick question regarding the drivetrain of the TB02. I have recently built one for my son and whilst it appears to run OK there are a few things I have noticed when I compare them to our TA05 and TA04.

Firstly, the drivetrain appears to be less free-wheeling than the others. At first I put this down to the fact that it was a shaft drive and the other two are belt drive however I have also noticed that the motor runs a bit hotter than the others as well. My question is should the dirvetrain be as free as a belt drive such as the TA04/TA05? Should the wheels spin as freely when the car is off the ground or is it normal for them to be tighter?

Secondly, on acceleration the TB02 makes a high pitch sound that tapers off as the car gathers speed. It accelerates at much the same speed as the others however I thought that it may be suffering from a slipping diff (which I am reluctant to tighten given the possible problem above). Should a TB02 and a TA05 accelerate at much the same speed given the same motors and stock drivetrain? Tyres are Sorex 28r on asphalt - I don't think it is wheel spin.

Thanks for any advice or help you may be able to give.
Teehomo is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Selling Schumacher Mi2, Tamiya M02, Tamiya TA04-S, Tamiya TB Evolution 3 Surikarn Ltd st_rob Australia For Sale/Trade 4 12-23-2008 07:37 PM
Tamiya 415 MSX, legacy 2.0, NIP Type A tires, Tamiya towel for sale or trade Fastburn R/C Items: For Sale/Trade 16 09-06-2008 12:45 AM
FS: Tekin Rebel 2 ESC w/ Tamiya GT Tuned Motor & Tamiya AM Radio & Receiver wrxnfx R/C Items: For Sale/Trade 6 06-10-2008 06:40 PM
Tamiya M03 / Trinity Brushes / Muchmore Battery Cooler / Tamiya M Chassis Wheels bluejays R/C Items: For Sale/Trade 2 12-16-2007 09:31 PM
Hpi rs4, tamiya tt01, tamiya tg-10, tamiya sprint! MORE!!!!! Genuinekid R/C Items: For Sale/Trade 10 09-10-2007 04:21 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 05:36 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net