R/C Tech Forums

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

Like Tree3Likes
Reply
 
Thread Tools Search this Thread
Old 01-20-2010, 07:32 PM   #7921
Tech Master
 
Join Date: Sep 2009
Posts: 1,901
Trader Rating: 9 (100%+)
Default

Lol I think we are getting confused here. I was referring to the outdrives for the front spool and not the swing shafts. I am currently using the steel 44mm swing shafts btw.

I think people are referring to the chatter that the steel outdrives make that supposedly makes you lose steering? Or is it from using the 46mm swing shafts?
inpuressa is offline   Reply With Quote
Old 01-20-2010, 07:33 PM   #7922
Tech Champion
 
geeunit1014's Avatar
 
Join Date: Sep 2005
Location: The dirty burnie
Posts: 5,487
Trader Rating: 12 (100%+)
Default

Quote:
Originally Posted by Joey4875 View Post
Does anyone use ECSs instead of the CVDs on the X? What the next best option if the steel shafts takes away steering other then the aluminum one? One more thing whats the advantage of the 46mm over the 44mm shafts
Joey, 46's should make the car smoother than with the 44's. Maybe a tick less steering, but smoother overall. Better for mod, maybe not necessary for stock. I don't think the car needs it for stock after driving hoffman's. I don't really think it needs a DCJ either, the tamiya CVDs are very smooth as is, not sure how much, if any you'd gain with them (especially in stock)
__________________
Mike Gee

Awesomatix USA/Pyscho Cells Racing/Tekin/Sweep Racing/RSD/180 Raceway/Johns Mobile Raceway/TQ Wire/Avid/Sanwa
geeunit1014 is offline   Reply With Quote
Old 01-20-2010, 07:45 PM   #7923
Tech Champion
 
gashuffer's Avatar
 
Join Date: Nov 2006
Location: RcVille
Posts: 5,230
Trader Rating: 48 (100%+)
Default

Quote:
Originally Posted by inpuressa View Post
Lol I think we are getting confused here. I was referring to the outdrives for the front spool and not the swing shafts. I am currently using the steel 44mm swing shafts btw.

I think people are referring to the chatter that the steel outdrives make that supposedly makes you lose steering? Or is it from using the 46mm swing shafts?
I have read that the chatter comes from the swing shafts not the out drives.
__________________
T-Sal
gashuffer is offline   Reply With Quote
Old 01-20-2010, 10:39 PM   #7924
Tech Champion
 
CraigM's Avatar
 
Join Date: Mar 2007
Location: Sydney, Australia
Posts: 7,009
Trader Rating: 34 (100%+)
Default

The swing shaft doesn't move as freely in a steel cup which creates less roll and that takes away steering. The 46mm swing shafts will chatter a little more than the 44s but they will look after the delrin cups
CraigM is offline   Reply With Quote
Old 01-21-2010, 06:20 AM   #7925
Tech Elite
 
M-Technic's Avatar
 
Join Date: Sep 2007
Location: Palm Beach, FL
Posts: 2,562
Trader Rating: 15 (100%+)
Default

Quote:
Originally Posted by gashuffer View Post
I have read that the chatter comes from the swing shafts not the out drives.
It mostly comes from the universal joint. I have found the stock delrin spool outdrives to be smoother than the steel outdrives that my Serpent S400 used, however.
__________________
RCAmerica | Xray | Hudy | Radiopost | Speed Passion USA | Trinity | P3 Graphics
M-Technic is offline   Reply With Quote
Old 01-21-2010, 08:12 AM   #7926
Tech Prophet
 
Randy Caster's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2003
Location: Costa Mesa, CA
Posts: 16,673
Trader Rating: 46 (100%+)
Default

Quote:
Originally Posted by MikeR View Post
Ok I will try again. Just that it's is off left to right. Front to back is ok. Thanks- M
That's really weird, I've never had that problem on any of my kits. Can you shim the standoff out .3 from the motor plate?
Randy Caster is offline   Reply With Quote
Old 01-21-2010, 11:19 AM   #7927
Tech Fanatic
 
94eg!'s Avatar
 
Join Date: Jan 2008
Posts: 832
Trader Rating: 17 (100%+)
Default

Quote:
Originally Posted by Randy Caster View Post
That's really weird, I've never had that problem on any of my kits. Can you shim the standoff out .3 from the motor plate?
Personally, that standoff never made sense to me. Why would you want to brace one bulkhead to the lower chassis, and not the other.

After shaving off 1mm from the bottom of my motor mount on my 415MSXX, I never spaced & reattached that last screw underneath. Car runs great w/ perfectly symetrical flex on the lower chassis. Of course that car has a center T-bar bracing both bulkheads to the lower chassis...

Has anybody tried running their 416 without the motor mount standoff?
94eg! is offline   Reply With Quote
Old 01-21-2010, 11:22 AM   #7928
Tech Elite
 
Johnny Wishbone's Avatar
 
Join Date: Feb 2006
Posts: 3,404
Trader Rating: 6 (100%+)
Default

Quote:
Originally Posted by Joey4875 View Post
Does anyone use ECSs instead of the CVDs on the X? What the next best option if the steel shafts takes away steering other then the aluminum one? One more thing whats the advantage of the 46mm over the 44mm shafts
I have run the Atomic ECS in a 416, and did a little write up about them in some previous posts. They definately take the chatter out of the car, what little the stock one has. Things to look out for, the pins break and they are about 43 and change for length, this is causing broken outdrives in some cases, as the tip of the swing shaft is too close to the end of the outdrive and puts extra pressure on that end. The 46 steel swing shafts are prefered as the sit deeper in the plunge of the outdrive where its in a stronger position. If your using the black outdrive cups the 46 is the way to go, I have run shorter swing shafts but have used the white 415 outdrives which seem to be less brittle, but require some mods for proper clearence between the bulk heads. The broken pins can be replaced with drill bit blanks or hardened rod, I use the drill bits, I buy the exact size bit and cut it off. The other trick here is the setscrew that holds the pins in puts extra pressure on the pin and the wall thickness of the setscrew makes them prone to stripping. My cure for this is to get rid of the setscrews completely and use shrink wrap, like LOSI does to hold the pins in. Since I did this I haven't broke a pin yet. another thing to look out for with the ECS is there is still a clearence issue in the c-hub, something I hadn't noticed before, but in straightline they are okay, but in lock to lock, the ECS shifts just enough to touch the inner hole of the c-hub, so best to check that out as it will cause drag.

Also if you do run the 46 swing shafts but go to a narrow front width setting check to make sure that axles aren't binding in the outdrive cup. Best way to check is to remove your front shocks and while rotating the the cars rear wheels, lift the front suspension arms one at a time through full travel, if the swingshafts are binding you'll feel it throught the rotation.
Johnny Wishbone is offline   Reply With Quote
Old 01-21-2010, 11:40 AM   #7929
Tech Elite
 
Join Date: Oct 2002
Location: Mclean, VA
Posts: 3,940
Trader Rating: 45 (100%+)
Default

Quote:
Originally Posted by Johnny Wishbone View Post
Also if you do run the 46 swing shafts but go to a narrow front width setting check to make sure that axles aren't binding in the outdrive cup. Best way to check is to remove your front shocks and while rotating the the cars rear wheels, lift the front suspension arms one at a time through full travel, if the swingshafts are binding you'll feel it throught the rotation.
I was going to say can 46mm swing shafts be used when using CC blocks up front on the 416X? I can understand using 46mm SS's if DD up front, but otherwise shouldn't the stock 44mm SS's be used when using the CC blocks?
Apex is offline   Reply With Quote
Old 01-21-2010, 01:08 PM   #7930
Tech Elite
 
KHoff7's Avatar
 
Join Date: Jan 2007
Posts: 3,166
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by Apex View Post
I was going to say can 46mm swing shafts be used when using CC blocks up front on the 416X? I can understand using 46mm SS's if DD up front, but otherwise shouldn't the stock 44mm SS's be used when using the CC blocks?
The 46mm shafts are ok with the stock CC block setup but once you go any narrower on the blocks they will bind.
__________________
Awesomatix USA / Middle River Hobbies / Sweep / Psycho Cells Racing
Karl Hoffmeister
KHoff7 is offline   Reply With Quote
Old 01-21-2010, 01:33 PM   #7931
Tech Prophet
 
Randy Caster's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2003
Location: Costa Mesa, CA
Posts: 16,673
Trader Rating: 46 (100%+)
Default

Quote:
Originally Posted by 94eg! View Post
Personally, that standoff never made sense to me. Why would you want to brace one bulkhead to the lower chassis, and not the other.

After shaving off 1mm from the bottom of my motor mount on my 415MSXX, I never spaced & reattached that last screw underneath. Car runs great w/ perfectly symetrical flex on the lower chassis. Of course that car has a center T-bar bracing both bulkheads to the lower chassis...

Has anybody tried running their 416 without the motor mount standoff?
With the high power of the BL motors the standoff helps keep everything from flexing under acceleration. It also moves the mounting point from the left side of the car to the center to provide equal left/right flex.

You could get away without running the screw on the 415 platforms because the T brace did essentially the same thing as the new standoff does.
Randy Caster is offline   Reply With Quote
Old 01-21-2010, 01:45 PM   #7932
Tech Elite
 
Johnny Wishbone's Avatar
 
Join Date: Feb 2006
Posts: 3,404
Trader Rating: 6 (100%+)
Default

Quote:
Originally Posted by KHoff7 View Post
The 46mm shafts are ok with the stock CC block setup but once you go any narrower on the blocks they will bind.
+1
Johnny Wishbone is offline   Reply With Quote
Old 01-21-2010, 01:49 PM   #7933
Tech Lord
 
syndr0me's Avatar
 
Join Date: Dec 2004
Location: 5280 Raceway
Posts: 13,125
Trader Rating: 32 (100%+)
Default

For what it's worth, TOP and XRay went to the leg on the motor mount on their cars, something I think Tamiya originated.

I'm at the track right now running 46mm bones with C/C up front on my WE and it's working great.
syndr0me is offline   Reply With Quote
Old 01-21-2010, 02:03 PM   #7934
Tech Regular
 
Join Date: Jul 2007
Location: The Netherlands
Posts: 264
Default

Quote:
Originally Posted by rnd_tang View Post
OK,

I can not work it out. I swapped the servo with another one that I know it working perfectly and nothing, same issue.

Tightened the rear diff up abit, nothing. Chassis is completely flatů

Could it be that I have a faulty front spool? I will try more toe out tonight...
Well, it's hard to say from a distance.
Make sure your shocks have the same length and your shocks filled equally (R-L equal rebound).

Set your droop and downstop properly, and make sure your suspension blocks are aligned perfectly (equal toe value left and right side).

Look for some parts that might be binding, or maybe a shaft pin has loosened a little. Look for faulty bearings as well.

Make sure your camber left and right are set equally and give the front a little bit toe out.

Try to mount a new set of tires.

You say you tightened your diff a bit more, but does your diff slip or doesn't it?

If your delrin spool cups are worn out, replace them with new ones.

Servo saver screw too long?

Transmitter ok? Does the steering-wheel/stick move smooth around the neutral steering point, or does it get stuck a bit around the neutral point (if you know what I mean)?

That would be my checklist for now...
__________________
www.rcpit.nl , RC dealer

www.machheemstede.nl
..................................Youtube: https://www.youtube.com/watch?v=_-Gkh2xZcQU
Modified 4 life
Govert is offline   Reply With Quote
Old 01-21-2010, 03:54 PM   #7935
Tech Fanatic
 
94eg!'s Avatar
 
Join Date: Jan 2008
Posts: 832
Trader Rating: 17 (100%+)
Default

Quote:
Originally Posted by Randy Caster View Post
With the high power of the BL motors the standoff helps keep everything from flexing under acceleration. It also moves the mounting point from the left side of the car to the center to provide equal left/right flex.

You could get away without running the screw on the 415 platforms because the T brace did essentially the same thing as the new standoff does.
Yeah that makes sense. Thanks! I wonder if running without the leg in "stock" classes would give any benefits?
94eg! is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
TRF416 sim600 Malaysian R/C Racers 15 01-09-2010 11:08 AM
TRF416 speedart Electric On-Road 26 06-27-2007 04:28 AM
new joke cyber3d Chat Lounge 5 08-02-2006 02:52 PM
another joke, OH no! corvettecrazy Chat Lounge 0 01-10-2004 09:11 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 12:07 AM.


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