R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 03-03-2014, 08:14 AM   #6376
Tech Addict
 
moparSRT's Avatar
 
Join Date: Oct 2013
Posts: 574
Default

Try it with the battery forward.
__________________
2014 IFMAR Warm-Up Pics >>> www.rcactionpics.com <<<

Check it out >>> www.RaceVTA.com <<<
moparSRT is offline   Reply With Quote
Old 03-03-2014, 03:40 PM   #6377
Tech Regular
 
nascarkeith's Avatar
 
Join Date: Jan 2011
Posts: 314
Default

Yes, it has a front one way.

Do they make plastic 2.0 toe blocks for a TC4 or do you have to pony up for the aluminum ones?

I also just bought a Spektrum DX3S so that may help. The Fly Sky seems to have a slight lag.
__________________
In racing if it goes out of bounds it probably ain't coming back.
SouthviewRC.com
nascarkeith is offline   Reply With Quote
Old 03-03-2014, 07:17 PM   #6378
Tech Master
 
NutDriver's Avatar
 
Join Date: Nov 2012
Location: North Carolina
Posts: 1,944
Trader Rating: 14 (100%+)
Default

You have a TC4 that you're running VTA on carpet with a front one-way? I think that I would start with putting ANYTHING in the front and see how you like it (assuming, of course, that you haven't driven it with a spool or diff in the front before). In my experience, I could be MUCH more ham-fisted with spool in the front. I had a hard time developing the finesse needed to drive with a one-way. (your results may vary).
__________________
"Racing makes heroin addiction look like a vague longing for something salty" - Peter Egan

USVTA member #111
NutDriver is offline   Reply With Quote
Old 03-03-2014, 07:47 PM   #6379
Tech Elite
 
oeoeo327's Avatar
 
Join Date: Oct 2008
Posts: 3,343
Trader Rating: 70 (100%+)
Default

Quote:
Originally Posted by nascarkeith View Post
Hello, fellow VTA'ers. I need a little set up advice.

Below are pics of the track and my set up then I will discuss my issues.






The car is very stable and easy to drive. I have plenty of speed and torque. No one passes me on the straights and I have a ton of pull coming out of the turns. Where I get beat is the middle of the corner. I have to turn the wheels pretty sharp to make the corner so it scrubs a ton of speed and pushes to the outside allowing me to get passed on the inside.

The fast guys who are racing me comment on how close my car is. They tell me it needs freed up just a little. I just haven't been able to hit that magic set up. A fast lap is a 9.5 and my best is a 10.0.

So let's hear it. What do you all think?
How are you setting your droop? Are you using setup blocks and setting the droop to 7mm front and rear? If that's the case, I'd think your car doesn't have enough droop, and not transferring enough weight to the front tires once you lift to enter a turn. Try setting the droop to 6mm in the front and 5mm in the rear, and see if that makes a difference.

You could also try adding some drag brake in small increments - with a one-way in the front, your car should initiate turns a lot better since you're using rear brakes exclusively.
__________________
Founding member of the Solid Gold Racing Team - Mediocrity, redefined...
✯Jackson RC✯Horsham RC✯SJCCR✯
oeoeo327 is offline   Reply With Quote
Old 03-03-2014, 08:08 PM   #6380
Tech Regular
 
nascarkeith's Avatar
 
Join Date: Jan 2011
Posts: 314
Default

I like how hard the one way pulls out of the turns. I had wondered about droop. I will add that to my list of things to try.
__________________
In racing if it goes out of bounds it probably ain't coming back.
SouthviewRC.com
nascarkeith is offline   Reply With Quote
Old 03-03-2014, 08:27 PM   #6381
Tech Elite
 
Brian McGreevy's Avatar
R/C Tech Charter Subscriber
 
Join Date: Jan 2003
Location: Illinois
Posts: 4,071
Trader Rating: 9 (100%+)
Send a message via AIM to Brian McGreevy Send a message via Yahoo to Brian McGreevy
Default

Quote:
Originally Posted by nascarkeith View Post
Do they make plastic 2.0 toe blocks for a TC4 or do you have to pony up for the aluminum ones?
You'll need ASC31069, the aluminum one.
__________________
USVTA Member #211

Support Formula SAE - get kids into engineering!
http://motorsports.illinois.edu/
Brian McGreevy is offline   Reply With Quote
Old 03-03-2014, 08:32 PM   #6382
Tech Elite
 
nf_ekt's Avatar
 
Join Date: Aug 2005
Location: 22 Acacia Avenue
Posts: 4,631
Trader Rating: 113 (100%+)
Default

Quote:
Originally Posted by nascarkeith View Post
I like how hard the one way pulls out of the turns. I had wondered about droop. I will add that to my list of things to try.
It will pull the same with a spool, because on-power, that is basically what a one-way becomes.
__________________
Up the Irons \m/

Powered by Hotwings, Rolling Rock, and the urge to race toy cars...
nf_ekt is offline   Reply With Quote
Old 03-04-2014, 07:36 AM   #6383
Tech Master
 
NutDriver's Avatar
 
Join Date: Nov 2012
Location: North Carolina
Posts: 1,944
Trader Rating: 14 (100%+)
Default

IMO, the spool has more of a push to it than a one way, under acceleration in a turn. Your results may vary.
__________________
"Racing makes heroin addiction look like a vague longing for something salty" - Peter Egan

USVTA member #111
NutDriver is offline   Reply With Quote
Old 03-04-2014, 08:19 AM   #6384
Tech Elite
 
oeoeo327's Avatar
 
Join Date: Oct 2008
Posts: 3,343
Trader Rating: 70 (100%+)
Default

Quote:
Originally Posted by NutDriver View Post
IMO, the spool has more of a push to it than a one way, under acceleration in a turn. Your results may vary.
If you're under constant acceleration, the spool and one way will act identically. However, if you're in a turn and power to the front is disrupted (e.g. over a bump, or the driver lifts to adjust their line), the one way could disengage momentarily and give you a little more steering. Otherwise, both axles should provide excellent steering while on power in a corner.
__________________
Founding member of the Solid Gold Racing Team - Mediocrity, redefined...
✯Jackson RC✯Horsham RC✯SJCCR✯
oeoeo327 is offline   Reply With Quote
Old 03-04-2014, 12:39 PM   #6385
Tech Apprentice
 
Teamhotrods's Avatar
 
Join Date: Oct 2013
Posts: 60
Trader Rating: 3 (100%+)
Default

Where do you get a one-way or a spool for a tc4.

I see some tc3 nitro one ways ... Do they fit? Do you cobble together tc5,6 pieces?
__________________
Sam

TC4 VTA. RC 10 Gold Pan
2wd SCT. 4wd Rally.
Mugen MBX6 ECO Tekno conversion
Teamhotrods is offline   Reply With Quote
Old 03-04-2014, 12:49 PM   #6386
Tech Elite
 
howardcano's Avatar
 
Join Date: Jan 2012
Location: Olathe, KS
Posts: 3,290
Trader Rating: 35 (100%+)
Default

Quote:
Originally Posted by Teamhotrods View Post
Where do you get a one-way or a spool for a tc4.

I see some tc3 nitro one ways ... Do they fit? Do you cobble together tc5,6 pieces?
The "Poor Man's Spool": leave the balls out of a ball diff, assemble with a light film of Weldwood contact cement on the faces of the diff rings.

This isn't recommended for diffs using plastic outdrives.
__________________
Howard Cano
When race results are re-calculated using the IOF (Index Of Fun), I always win.
1993 ROAR 1/8 Pan National Champion
howardcano is offline   Reply With Quote
Old 03-04-2014, 12:59 PM   #6387
Tech Apprentice
 
Join Date: May 2013
Location: Montreal,QC,Canada
Posts: 97
Default

Quote:
Originally Posted by IndyHobbies.com View Post
Here's some photos from last night at Indy RC.
looks like a sweet spot. What kind of chassis are you guys runnin ?

Ive got a TA TC4 im building so i think its going to be good for VTA class.
__________________
Saint Hyacinthe RC Circuit
circuitctsh.com
----------------------------
rc-demon is offline   Reply With Quote
Old 03-04-2014, 01:01 PM   #6388
Tech Champion
 
liljohn1064's Avatar
 
Join Date: Sep 2008
Location: Deerfield, WI
Posts: 5,281
Trader Rating: 16 (100%+)
Send a message via AIM to liljohn1064 Send a message via MSN to liljohn1064 Send a message via Yahoo to liljohn1064
Default

I ran a one way bearing in place of the front shaft cup. It would disengage the whole front drive off power. For a long time, this was in the rules as not legal and I removed them from my TC3s.

__________________
John Higgins
liljohn1064 is offline   Reply With Quote
Old 03-04-2014, 01:07 PM   #6389
Tech Champion
 
snoopyrc's Avatar
 
Join Date: Oct 2006
Location: Tunnel Hill GA
Posts: 5,043
Trader Rating: 2 (100%+)
Default

I know that my memory is not flawless, but I do not remember that being the case in the national rule set. (USVTA rules) Now I do remember some big races not allowing front one ways, but that was in addition to the USVTA rules. Kind of like lipo sak rules are at some tracks but not in the USVTA rules.
__________________
www.battlefieldraceway.com Racing videos at http://www.youtube.com/snoopyrc
snoopyrc is offline   Reply With Quote
Old 03-04-2014, 01:36 PM   #6390
Tech Master
 
NutDriver's Avatar
 
Join Date: Nov 2012
Location: North Carolina
Posts: 1,944
Trader Rating: 14 (100%+)
Default

Another poor man's spool is to take the diff rings out of the stock TC4 ball diff and replace them with TC5 slipper pads. I haven't done it myself (yet. I have the parts), but I'm told that it's very much like a spool, but the slip under heavy load (like hitting the wall, etc while on power) is easier on gears, outdrives, etc.
__________________
"Racing makes heroin addiction look like a vague longing for something salty" - Peter Egan

USVTA member #111
NutDriver is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
U.S. Vintage Trans-Am [PICS & PAINT Discussion ONLY!!!] speedsterblade Electric On-Road 5821 11-21-2016 11:39 AM
TeamNovak (U.S Vintage Trans-Am) NovakTwo Electric On-Road 329 12-07-2013 08:48 PM
U.S. Vintage Trans-Am Racing squarehead Electric On-Road 14187 03-21-2012 02:43 PM
U.S. Vintage Trans Am Nationals: April 12th, 2008 squarehead Wisconsin & Illinois Racing 308 05-14-2008 08:56 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 04:54 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