R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 12-30-2014, 12:18 AM   #601
Tech Elite
 
Join Date: Jul 2010
Posts: 2,030
Trader Rating: 8 (100%+)
Default

Quote:
Originally Posted by Simmi View Post
New Alu Chassis TRF 419 from Samix

More on RedRC
http://www.redrc.net/2014/12/samix-4...is/#more-90792
I wonder if this is what MR et all used at the ETS round a few weeks back....?
cplus is offline   Reply With Quote
Old 12-30-2014, 04:56 AM   #602
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,521
Default

Quote:
Originally Posted by cplus View Post
I wonder if this is what MR et all used at the ETS round a few weeks back....?
It certainly wasn't the same as that.
Besides, it was a prototype, he showed me the underside and admitted the machining wasn't perfect etc.
He didn't mention if it was a Tamiya part or not.
__________________
Xray T4'16, T4'14 (Wet Car)
Xray X12 2016
Xray X1'16
wlrc.co.uk (West London Racing Centre)
RD Disco

Last edited by Skiddins; 12-30-2014 at 10:12 AM.
Skiddins is offline   Reply With Quote
Old 12-30-2014, 05:09 AM   #603
Tech Elite
 
Join Date: Jul 2010
Posts: 2,030
Trader Rating: 8 (100%+)
Default

Cool. Thanks for the insight.
cplus is offline   Reply With Quote
Old 12-30-2014, 10:11 AM   #604
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,521
Default

Quote:
Originally Posted by cplus View Post
Cool. Thanks for the insight.
Sorry, admitted the machining was not perfect'
__________________
Xray T4'16, T4'14 (Wet Car)
Xray X12 2016
Xray X1'16
wlrc.co.uk (West London Racing Centre)
RD Disco
Skiddins is offline   Reply With Quote
Old 12-30-2014, 09:16 PM   #605
Tech Adept
 
Join Date: Apr 2012
Location: San Marcos, Ca
Posts: 137
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by kentech View Post
I measured it when I built the car but didin't write it down. I believe the difference was 1 or 1.5mm.
Just confirmed the 419 body hole is about shorter by 1 or 1.5mm
TamiyaW1688 is offline   Reply With Quote
Old 12-31-2014, 02:11 AM   #606
Tech Adept
 
Marcika's Avatar
 
Join Date: Sep 2013
Location: Hungary
Posts: 109
Default

Hey guys,

Any idea how to fix balance of left-front?

Car is overall 1350g, rear is ok +/- 10g.

FL:294
FR:330
RL:323
RR:312

front left has bigger gap vs right (30-35g), despite I put some weight under servo 10g, under front spool 10g, under left side of bumper 10g.
moving lipo also didnt help much.

Thanks and happy new year.
Marton

Tamiya TRF419-img_1429.jpg
Marcika is offline   Reply With Quote
Old 12-31-2014, 07:20 AM   #607
Tech Addict
 
Join Date: May 2008
Location: Philippines
Posts: 571
Trader Rating: 5 (100%+)
Default

try checking your shock preload, that also influences weight distribution, and tweak (if there's any) as well.
__________________
Tamiya - Awesomatix - Orca - Orion - LRP - Protoform - Sanwa - Futaba - NASA - Ride
Minami is offline   Reply With Quote
Old 12-31-2014, 09:57 AM   #608
Tech Champion
 
RedBullFiXX's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2003
Location: Intergalactic Planetary
Posts: 6,539
Trader Rating: 34 (100%+)
Default

Quote:
Originally Posted by Marcika View Post
Hey guys,

Any idea how to fix balance of left-front?

Car is overall 1350g, rear is ok +/- 10g.

FL:294
FR:330
RL:323
RR:312

front left has bigger gap vs right (30-35g), despite I put some weight under servo 10g, under front spool 10g, under left side of bumper 10g.
moving lipo also didnt help much.

Thanks and happy new year.
Marton

Attachment 1259108
You should check chassis balance before chassis tweak
__________________
--> 12th scale Information Source <--

"Men do not quit playing because they grow old; they grow old because they quit playing."
― Oliver Wendell Holmes Jr.
RedBullFiXX is offline   Reply With Quote
Old 12-31-2014, 01:24 PM   #609
Tech Adept
 
Marcika's Avatar
 
Join Date: Sep 2013
Location: Hungary
Posts: 109
Default

Check you mean without dampers attached?

Quote:
Originally Posted by RedBullFiXX View Post
You should check chassis balance before chassis tweak
Marcika is offline   Reply With Quote
Old 12-31-2014, 03:14 PM   #610
Tech Champion
 
RedBullFiXX's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2003
Location: Intergalactic Planetary
Posts: 6,539
Trader Rating: 34 (100%+)
Default

Quote:
Originally Posted by Marcika View Post
Check you mean without dampers attached?
Everything you have bolted, stuck, strapped to your sweet new 419 chassis affects the L/R static balance of the car

Check on Balance pins, or the like first, before you start to check for dynamic balance

Also make sure your shocks are all the same length, and front wheels are pointed straight when using scales
__________________
--> 12th scale Information Source <--

"Men do not quit playing because they grow old; they grow old because they quit playing."
― Oliver Wendell Holmes Jr.
RedBullFiXX is offline   Reply With Quote
Old 12-31-2014, 03:33 PM   #611
Tech Elite
 
CraigMBA's Avatar
 
Join Date: Mar 2003
Location: Valley of the Dirt, CA
Posts: 2,832
Trader Rating: 22 (100%+)
Default

To add to what RBF wrote, If the car is ready to run, I'd move the battery closer to the centerline, or get a lighter battery. The car is "only" 16 grams heavy on the right side.

I just saw your picture. Strip all the weight off the car. There is something else wrong with your car.

Assuming the ride height is correct AND the car was untweeked, I'd add 1/4 turn to the LR and remove 1/4 turn from the RR. That will reduce the chassis cross weight a tremendous ammount.

Is the car brand new, or have you hit something with it?

Have at it!
__________________
* Cee Lo Dizzle, the Secizzle * Red Bull * Team Homies * Pintura de Negro Mate * USVTA #152
CraigMBA is offline   Reply With Quote
Old 12-31-2014, 10:45 PM   #612
Tech Rookie
 
Join Date: Dec 2014
Posts: 1
Default can 418 upgrade to 419

hi all,i have a 418 can i upgrade to 419 and what parts i need to buy...happy new year
tinalau is offline   Reply With Quote
Old 12-31-2014, 10:51 PM   #613
Tech Master
 
Join Date: Dec 2004
Posts: 1,048
Default

Quote:
Originally Posted by tinalau View Post
hi all,i have a 418 can i upgrade to 419 and what parts i need to buy...happy new year

Not going to happen. If you want a 419. Buy a 419. Suspension is the same. That's it
Juan Aveytia is offline   Reply With Quote
Old 01-01-2015, 01:20 AM   #614
Tech Adept
 
Marcika's Avatar
 
Join Date: Sep 2013
Location: Hungary
Posts: 109
Default

Thanks for the feedback. Car is brand new, plan to run this weekend.i will double check screws,followed instruction during assemble. Dampers are ok, no difference inlenght. for sure i need extra weight to hit 1350g.
Quote:
Originally Posted by CraigMBA View Post
To add to what RBF wrote, If the car is ready to run, I'd move the battery closer to the centerline, or get a lighter battery. The car is "only" 16 grams heavy on the right side.

I just saw your picture. Strip all the weight off the car. There is something else wrong with your car.

Assuming the ride height is correct AND the car was untweeked, I'd add 1/4 turn to the LR and remove 1/4 turn from the RR. That will reduce the chassis cross weight a tremendous ammount.

Is the car brand new, or have you hit something with it?

Have at it!
Marcika is offline   Reply With Quote
Old 01-01-2015, 01:31 AM   #615
Tech Adept
 
Marcika's Avatar
 
Join Date: Sep 2013
Location: Hungary
Posts: 109
Default

What i have also realized the ride height is different ;( left vs right in the front with same damper setting (ring setting same 2.5mm for preload) so spring pre load should be the same if spiring is also same size (pink yokomo btw)...shall i change it to have same ride high? Thankswith
Quote:
Originally Posted by CraigMBA View Post
To add to what RBF wrote, If the car is ready to run, I'd move the battery closer to the centerline, or get a lighter battery. The car is "only" 16 grams heavy on the right side.

I just saw your picture. Strip all the weight off the car. There is something else wrong with your car.

Assuming the ride height is correct AND the car was untweeked, I'd add 1/4 turn to the LR and remove 1/4 turn from the RR. That will reduce the chassis cross weight a tremendous ammount.

Is the car brand new, or have you hit something with it?

Have at it!
Marcika is offline   Reply With Quote
Reply



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 03:13 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