R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 07-08-2012, 04:34 PM   #3436
Tech Fanatic
 
mingnon's Avatar
 
Join Date: Jun 2011
Location: Sutherland Shire
Posts: 962
Trader Rating: 12 (100%+)
Default

Qatmix
thanks for the info on steering, wasnt sure if the amount of slop in it was normal or not.
__________________
---------------------------SMA The Home of GREAT Racing------------------------------
mingnon is offline   Reply With Quote
Old 07-08-2012, 05:36 PM   #3437
Tech Champion
 
CraigM's Avatar
 
Join Date: Mar 2007
Location: Sydney, Australia
Posts: 7,009
Trader Rating: 34 (100%+)
Default

The slop seems to be in the little bearings, I haven't figured out a change for it but I think as far as slop goes at the wheels it's not too bad
__________________
www.facebook.com/mcpheerc
CraigM is offline   Reply With Quote
Old 07-09-2012, 07:48 AM   #3438
Tech Master
 
Join Date: Jun 2008
Location: santa monica / manchester
Posts: 1,221
Default

Quote:
Originally Posted by COLD AS ICE View Post
are you using the CVD's in the front or DCJ's?
CVD's, They have been silent for a year, still no wear.. although I have never rebuilt them.
__________________
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 07-09-2012, 10:10 AM   #3439
Tech Elite
 
Join Date: Mar 2005
Location: Michigan
Posts: 3,135
Trader Rating: 114 (100%+)
Default

Quote:
Originally Posted by CraigM View Post
I think a 4t geared that low would rev out on the straight and have too much grunt in the infield. I'd start with a 4.5 at around 7.8FDR, but it depends what motor what speedo how much boost etc etc.
LRP x20 4.0T... TC Spec v2 soft v4... Planning on boost level 1 or 2.

8.7 too low you think? I already have the motor what do you recommend? What method of calculation are you using?

LRP actually recommends 9.0.

Last edited by Chris Furman; 07-09-2012 at 11:18 AM.
Chris Furman is offline   Reply With Quote
Old 07-09-2012, 12:43 PM   #3440
Tech Master
 
Join Date: Sep 2009
Posts: 1,899
Trader Rating: 9 (100%+)
Default

Ran my 417x for the first time, and was able to consistently run the car for first place. I used Marc's setup for the Reedy Race, but changed the rear diff oil to 900 and added little more front droop from 6mm to 5mm. Car felt very good at the end.

a little tip for those using the kyosho xrings for the shocks. I used a 0.2mm 4mm shim in the shock body to space out the rod guides to better seal the shaft. Use the flat side on the rod guide to mate with the xring. Smooth shocks, but minimal leak at the end of the day. Much better than the standard orings.
__________________
Kyosho Inferno MP9 TKI4
TLR 22 3.0
Apex RC Proshop
inpuressa is offline   Reply With Quote
Old 07-09-2012, 12:53 PM   #3441
Tech Fanatic
 
silverhkswrx's Avatar
 
Join Date: Dec 2008
Location: Tampa, Fl.
Posts: 988
Trader Rating: 10 (100%+)
Send a message via AIM to silverhkswrx Send a message via Skype™ to silverhkswrx
Default

Quote:
Originally Posted by inpuressa View Post
Ran my 417x for the first time, and was able to consistently run the car for first place. I used Marc's setup for the Reedy Race, but changed the rear diff oil to 900 and added little more front droop from 6mm to 5mm. Car felt very good at the end.

a little tip for those using the kyosho xrings for the shocks. I used a 0.2mm 4mm shim in the shock body to space out the rod guides to better seal the shaft. Use the flat side on the rod guide to mate with the xring. Smooth shocks, but minimal leak at the end of the day. Much better than the standard orings.
Im glad for your outcome! I am running his setup for carpet and havent had the opportunity to actually race it and tune it, but I will be rather soon! Rain in FLorida is horrendus!
__________________
SpeedPassion 17.5R powered TRF417X
My son owns: Team Associated RC18R2
(RC18B2 converted to a RC18R)

http://www.tamiya.com/english/rc/manuals.htm
silverhkswrx is offline   Reply With Quote
Old 07-09-2012, 04:10 PM   #3442
Tech Champion
 
CraigM's Avatar
 
Join Date: Mar 2007
Location: Sydney, Australia
Posts: 7,009
Trader Rating: 34 (100%+)
Default

Quote:
Originally Posted by Chris Furman View Post
LRP x20 4.0T... TC Spec v2 soft v4... Planning on boost level 1 or 2.

8.7 too low you think? I already have the motor what do you recommend? What method of calculation are you using?

LRP actually recommends 9.0.
I haven't used the x20s so maybe start as you have planned, on a big track like that I think you'll want more boost and at least another tooth or two. On the big nitro track near me I used to run the 4.5 octa at 7.6 with 4 feel and 5 boost

Spur/pinion*IR
__________________
www.facebook.com/mcpheerc
CraigM is offline   Reply With Quote
Old 07-09-2012, 04:17 PM   #3443
Tech Master
 
Join Date: Sep 2009
Posts: 1,899
Trader Rating: 9 (100%+)
Default

Quote:
Originally Posted by silverhkswrx View Post
Im glad for your outcome! I am running his setup for carpet and havent had the opportunity to actually race it and tune it, but I will be rather soon! Rain in FLorida is horrendus!
I run on asphalt so when I freed up the front droop, the car had way more steering.

As for carpet, use the single piece sus mounts and the motor mount connection piece. If you use traction compound, make sure it does not get on to the tire side wall. I see lots of people just loading them on like a glazed doughnut, making the sidewallls soft in the process. You want the sidewalls to be firm, so it won't roll under. I also heard that limiting droop is one of the most effective way to prevent traction rolls.
Tamiya is also coming out with a hard upper and lower deck (42232,42233) for high grip surfaces.

Vid of race. My car is the flr-red one. sorry about the crappy quality
+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
__________________
Kyosho Inferno MP9 TKI4
TLR 22 3.0
Apex RC Proshop
inpuressa is offline   Reply With Quote
Old 07-10-2012, 12:17 PM   #3444
Tech Initiate
 
Join Date: Apr 2012
Posts: 25
Default

Hi , i need some help to understand how does the spacer here affect the car .
How can i see if i need to change the spacer ?
Any source to read some things about the setups ?
Attached Thumbnails
Tamiya TRF417-images.jpeg  
Akita is offline   Reply With Quote
Old 07-10-2012, 01:27 PM   #3445
Tech Master
 
Join Date: Sep 2009
Posts: 1,899
Trader Rating: 9 (100%+)
Default

Quote:
Originally Posted by Akita View Post
Hi , i need some help to understand how does the spacer here affect the car .
How can i see if i need to change the spacer ?
Any source to read some things about the setups ?
I use this
http://www.teamxray.com/teamxray/sho...p?file_id=2525
__________________
Kyosho Inferno MP9 TKI4
TLR 22 3.0
Apex RC Proshop
inpuressa is offline   Reply With Quote
Old 07-10-2012, 02:49 PM   #3446
Tech Initiate
 
Join Date: Apr 2012
Posts: 25
Default

What is the name i am looking for in that book ?
Akita is offline   Reply With Quote
Old 07-10-2012, 04:28 PM   #3447
Tech Elite
 
2-Bad's Avatar
 
Join Date: Jan 2003
Location: Australia
Posts: 2,725
Trader Rating: 24 (100%+)
Default

Quote:
Originally Posted by Akita View Post
What is the name i am looking for in that book ?
If you have to ask then maybe you should consider reading the whole thing, but the section you're specially referring to is on page 27....
__________________
Yokomo * G Force * Sanwa * SMC * ProSpec
2-Bad is offline   Reply With Quote
Old 07-10-2012, 04:39 PM   #3448
Tech Master
 
Join Date: Oct 2010
Posts: 1,365
Trader Rating: 69 (100%+)
Default

Quote:
Originally Posted by Akita View Post
Hi , i need some help to understand how does the spacer here affect the car .
How can i see if i need to change the spacer ?
Any source to read some things about the setups ?
For the circle in green, higher (more spacers) gives lower roll center, meaning it will roll more, which makes it less responsive and grip more.

On the opposite, lower (less spacers) gives higher roll center, meaning it will roll less, which makes it more responsive but may grip less.
eComet is offline   Reply With Quote
Old 07-10-2012, 05:44 PM   #3449
Tech Master
 
Join Date: Jan 2009
Location: Hagerstown, MD
Posts: 1,699
Trader Rating: 19 (100%+)
Default

Quote:
Originally Posted by Qatmix View Post
CVD's, They have been silent for a year, still no wear.. although I have never rebuilt them.
May be a good idea to rebuild them. Take them apart and clean with motor spray, wipe them off and blow with air compressor. Put some grease into the outdrive itself and on the barrel piece that the set screw and pin go through. Try using the Hudy graphite grease, it works wonders. I do this routine about every 3 race weekends. Sometimes more. I usually run in the super stock class (13.5 blinky) and never have chatter issues except when the cvd's need cleaned and greased. Hope this helps!!
__________________
★Randy Banks★
COLD AS ICE is offline   Reply With Quote
Old 07-11-2012, 01:19 AM   #3450
Tech Champion
 
CraigM's Avatar
 
Join Date: Mar 2007
Location: Sydney, Australia
Posts: 7,009
Trader Rating: 34 (100%+)
Default

Quote:
Originally Posted by eComet View Post
For the circle in green, higher (more spacers) gives lower roll center, meaning it will roll more, which makes it less responsive and grip more.

On the opposite, lower (less spacers) gives higher roll center, meaning it will roll less, which makes it more responsive but may grip less.
Actually the change to the roll centre is minimal, you notice the camber change much more which has the opposite effect - less spacers, more camber change, more grip, more aggressive
__________________
www.facebook.com/mcpheerc
CraigM is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Saudi Arabia RC Club grizzle Manila Racers 6558 01-06-2017 08:50 AM
Tamiya TRF415 JDM_DOHC_SiR Electric On-Road 21094 03-10-2016 11:02 AM
Tamiya TRF416 / TRF416WE / TRF416X academygaz Electric On-Road 10619 01-01-2015 03:36 PM
Tamiya TA05 IFS rcforum Electric On-Road 1132 12-18-2014 05:19 AM
"Ask" Jilles Groskamp Tamiya 416 & 417, Team Orion Motors JGH Electric On-Road 1996 05-27-2014 06:28 AM



Currently Active Users Viewing This Thread: 2 (1 members and 1 guests)
Bob43
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 06:41 PM.


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