R/C Tech Forums

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

Like Tree2Likes
Reply
 
Thread Tools Search this Thread
Old 09-10-2009, 05:18 AM   #10636
Tech Elite
 
niznai's Avatar
 
Join Date: Feb 2009
Location: All over the place
Posts: 2,940
Default

The Tamiya bodies are pretty much built around the same wheelbase and width. The only possible difference may be the body post holes if they come pre-drilled.

200mm bodies have totally different proportions. Even if the wheelbase is the same they just look wrong. But they can be used.
__________________
Team Greasy Weasel

The best upgrade to any car is some driver skill.
niznai is offline   Reply With Quote
Old 09-11-2009, 12:42 AM   #10637
Tech Adept
 
jolson88's Avatar
 
Join Date: Jul 2009
Location: Kirkland, WA
Posts: 173
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by niznai View Post
The Tamiya bodies are pretty much built around the same wheelbase and width. The only possible difference may be the body post holes if they come pre-drilled.

200mm bodies have totally different proportions. Even if the wheelbase is the same they just look wrong. But they can be used.
Thanks niznai!

On a different note, does anybody know where I can pick up spare parts other than Tamiya USA? I need to rebuild my stock front-diff (currently am running front one-way, but class I want to race in won't allow it), but many of the necessary parts are currently out-of-stock at Tamiya USA .
__________________
Associated B4
Tamiya TA-05
Traxxas Slash
jolson88 is offline   Reply With Quote
Old 09-11-2009, 01:01 AM   #10638
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 jolson88 View Post
Thanks niznai!

On a different note, does anybody know where I can pick up spare parts other than Tamiya USA? I need to rebuild my stock front-diff (currently am running front one-way, but class I want to race in won't allow it), but many of the necessary parts are currently out-of-stock at Tamiya USA .
Try Speedtech RC

What parts do you need. I think I have all the internals for th 05 diff. I can get them to you @ the Hanger on the 20th if you can't find anthing. PM me we can chat.
tamiyarcracer is offline   Reply With Quote
Old 09-11-2009, 01:15 AM   #10639
bl4
Tech Regular
 
bl4's Avatar
 
Join Date: Apr 2009
Posts: 444
Trader Rating: 5 (100%+)
Default

Hi What is the format to calucate the number of spur & pinion gear teeth to use to suit on the motor turn we use? Thks!
bl4 is offline   Reply With Quote
Old 09-11-2009, 02:17 AM   #10640
Tech Elite
 
niznai's Avatar
 
Join Date: Feb 2009
Location: All over the place
Posts: 2,940
Default

Quote:
Originally Posted by bl4 View Post
Hi What is the format to calucate the number of spur & pinion gear teeth to use to suit on the motor turn we use? Thks!
All you need is set up an excel spreadsheet with the various numbers and you can work it out yourself for whatever application you need.
__________________
Team Greasy Weasel

The best upgrade to any car is some driver skill.
niznai is offline   Reply With Quote
Old 09-11-2009, 02:26 AM   #10641
bl4
Tech Regular
 
bl4's Avatar
 
Join Date: Apr 2009
Posts: 444
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by niznai View Post
All you need is set up an excel spreadsheet with the various numbers and you can work it out yourself for whatever application you need.
Do you any example? I know nut of all this! Thks alot!
bl4 is offline   Reply With Quote
Old 09-11-2009, 02:44 AM   #10642
PDR
Tech Master
 
PDR's Avatar
 
Join Date: Oct 2008
Location: Sydney, Australia
Posts: 1,826
Trader Rating: 30 (100%+)
Default

Quote:
Originally Posted by bl4 View Post
Do you any example? I know nut of all this! Thks alot!
Towards the back of the manual for the TA05 is a section on gear ratios, including the formula for calculating it (page 18 for the standard TA-05 chassis).

A good online tool can be found at gearchart.com

Knowing what ratio works for your track isn't something that these will calculate for you, so checking with an experienced local is always a good idea.

Cheers,
Phil.
__________________
Looking for chassis | Multiple Kids
2011 Slowest Winner - 21.5 Muchmore Masters & NSW State Titles Demo Class
https://www.facebook.com/phatdadracing/
Making an A Main at a Scotty Ernst event. Awesome. Scotty calling you first in A1. Priceless
PDR is offline   Reply With Quote
Old 09-11-2009, 03:04 AM   #10643
Tech Elite
 
niznai's Avatar
 
Join Date: Feb 2009
Location: All over the place
Posts: 2,940
Default

Here you go.

You can see the formula in cell number L10. Pinion sizes in the left column, spur sizes across the top, C3 and D3 are diff pulley and center pulley sizes respectively, internal ratio C4.

The beauty is that you can change diff and centre sizes in cells C3 and D3 and the table will update instantly with the new ratios. you can also have another table where ratios are sorted increasing in value and paired with the corresponding spur/pinion pair so you can actually vary the the FDR incrementally by changing both accordingly.
Attached Thumbnails
Tamiya TA05 Touring Sedan-grab.jpg  
__________________
Team Greasy Weasel

The best upgrade to any car is some driver skill.

Last edited by niznai; 09-11-2009 at 03:16 AM.
niznai is offline   Reply With Quote
Old 09-11-2009, 03:32 AM   #10644
bl4
Tech Regular
 
bl4's Avatar
 
Join Date: Apr 2009
Posts: 444
Trader Rating: 5 (100%+)
Default

Thks for all the help and info.
bl4 is offline   Reply With Quote
Old 09-11-2009, 06:18 AM   #10645
Tech Elite
 
M-Technic's Avatar
 
Join Date: Sep 2007
Location: Palm Beach, FL
Posts: 2,562
Trader Rating: 15 (100%+)
Default

Or if you are out at the track and you need to calculate it on your cell phone calculator the formula is:

spur / pinion X internal = final drive

For instance, 90 (spur) / 40 (pinion) X 2.25 (internal of the TA05) = 5.06 final drive.
__________________
RCAmerica | Xray | Hudy | Radiopost | Speed Passion USA | Trinity | P3 Graphics
M-Technic is offline   Reply With Quote
Old 09-11-2009, 07:30 AM   #10646
Tech Elite
 
niznai's Avatar
 
Join Date: Feb 2009
Location: All over the place
Posts: 2,940
Default

Quote:
Originally Posted by M-Technic View Post
Or if you are out at the track and you need to calculate it on your cell phone calculator the formula is:

spur / pinion X internal = final drive

For instance, 90 (spur) / 40 (pinion) X 2.25 (internal of the TA05) = 5.06 final drive.
That's why I caved in and did the whole table in the end. Trust me, I hate computers and am at about sub-bozo level with the whole thing. But once you print your ratios ordered in whatever increments you like, it's the best thing to have at the track. Especially if you like me have a hopeless mobile phone that doesn't know anything.
__________________
Team Greasy Weasel

The best upgrade to any car is some driver skill.
niznai is offline   Reply With Quote
Old 09-11-2009, 09:16 AM   #10647
bl4
Tech Regular
 
bl4's Avatar
 
Join Date: Apr 2009
Posts: 444
Trader Rating: 5 (100%+)
Default

By the way my is the TA05 ver.2 the internal isit the same?
bl4 is offline   Reply With Quote
Old 09-11-2009, 10:12 AM   #10648
Tech Elite
 
niznai's Avatar
 
Join Date: Feb 2009
Location: All over the place
Posts: 2,940
Default

Nope. You've got 37 tooth diff pulleys and 18 tooth centre pulleys. That's 37/18=2.0555. What I posted above is the setup for modified xray 007.
__________________
Team Greasy Weasel

The best upgrade to any car is some driver skill.
niznai is offline   Reply With Quote
Old 09-11-2009, 08:23 PM   #10649
bl4
Tech Regular
 
bl4's Avatar
 
Join Date: Apr 2009
Posts: 444
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by niznai View Post
Nope. You've got 37 tooth diff pulleys and 18 tooth centre pulleys. That's 37/18=2.0555. What I posted above is the setup for modified xray 007.
Which mean the Ver. 2 transmission ratio is 2.0555? The gear ratio is 1:7.19Thks for all the help!

Last edited by bl4; 09-12-2009 at 01:32 AM.
bl4 is offline   Reply With Quote
Old 09-12-2009, 09:45 AM   #10650
Tech Rookie
 
BXBENNY's Avatar
 
Join Date: Aug 2009
Posts: 8
Send a message via MSN to BXBENNY
Questions?? Question

Hey all, Iíam running a ta05 with the gear ratio of 2.117:1 78 spur and 33 pinion giving me a final of 5.0038:1... But this ratio is not working on my club track I am running 2nd 3rd all the time and i just donít have the legs to catch 1st...... Can anyone suggest anything my club track is carpet and the layout is attached.
Attached Thumbnails
Tamiya TA05 Touring Sedan-track.png  
__________________
NOVICE TA05

scrutineer
BXBENNY is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: Tamiya TA05-R (TA05) TCS Legal limbohz R/C Items: For Sale/Trade 5 06-05-2008 08:58 PM
New Tamiya TA05 R touring car/motor/esc! Frost99999 R/C Items: For Sale/Trade 3 08-07-2007 12:24 PM
FWD touring car/sedan hellbilly R/C Items: Wanted to Buy 6 01-12-2007 06:22 PM
Tamiya TA05 full race sedan, Tons of Hop Ups lbckevin R/C Items: For Sale/Trade 13 08-29-2006 03:05 PM
want to buy a touring/sedan car traxxasracer Minnesota and North/South Dakota Racing 7 09-21-2004 06:36 AM



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 09:23 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