R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 07-26-2010, 03:12 AM   #1
Tech Adept
 
Join Date: Nov 2007
Posts: 105
Default Touring Car Springs:

Hi, I wanted to start this thread as I would like to get more information on what all the different manufactures springs are like.

So far I've picked up that Tamiya springs are the most progressive and work well on carpet, and HPI are the opposite, linear and best suited to tarmac.( Rhinhard used them at worlds??? HPI silver all round?)

But what about the rest, has any one tested them? AE drivers seem to stick to AE springs no matter what the surface, are they linear or progressive?

Xray drivers some times use HPI springs, even on carpet???

Hope this generates some discussion and gives some tuning options,

cheers
michael.branth is offline   Reply With Quote
Old 07-26-2010, 03:21 AM   #2
Tech Elite
 
sosidge's Avatar
 
Join Date: Dec 2001
Location: Bristol, UK
Posts: 3,865
Default

All the current springs are wound linear.

People choose the HPI springs over the Tamiya springs because of the "feel" on the track, it's a misconception to say they are progressive. The HPI range has much finer steps between rates than the Tamiya range and also run a bit stiffer.

Petit RC have a fairly exhaustive spring chart for reference.

You can be fast on any spring (assuming they are a good basic quality), just select the right rates and dimensions to give the handling balance you want and to fit the shocks.
sosidge is offline   Reply With Quote
Old 06-14-2011, 06:13 PM   #3
Tech Fanatic
 
alcyon's Avatar
 
Join Date: Feb 2006
Location: kuala lumpur,malaysia
Posts: 953
Trader Rating: 8 (100%+)
Default

how about lengths of the different brands of springs?
The old yokomos were 22mm long. The newer ones are 24.5mm i think.
I would be interested to find 20mm and below length springs.
__________________
http://kawada-alcyon.blogspot.com/
http://superturbooptimamidspecialzx-5.blogspot.com/
kawada sv10 alcyon 3-sanwa mx3x-orca vx v4.1 software-team powers 13.5 motor-turnigy 4200 shorty lipo-savox 1251 servo RIDE RE32
alcyon is offline   Reply With Quote
Old 06-14-2011, 07:52 PM   #4
Tech Initiate
 
Join Date: May 2011
Posts: 20
Default

sosidge, Do you have a link to said chart?
KBorg is offline   Reply With Quote
Old 06-14-2011, 08:59 PM   #5
Tech Fanatic
 
Tron's Avatar
 
Join Date: Dec 2009
Location: Aliso Viejo, CA
Posts: 896
Trader Rating: 17 (100%+)
Default

The charts are here, touring car is specifically the 3rd bullet down:

http://www.petitrc.com/reglages/Univ...pringChart.htm

Personally I feel the HPI and Hara springs feel the same on the track, from linger:

Quote:
Originally Posted by linger View Post
After sitting on my desk for a year - I finally got around to measuring the Hara Springs. I measured two springs and took an average.
I'm impressed - these spring actually measure very close to the rating on the package - that's rare in the RC world.
The graphs show that the springs are completely linear (with best fit R squared value between 0.9988 and 1.0000 for you technical types).
The measurement was done with a Chatillon 10 lb load cell and a test stand with accuracy within .001".


Hara Springs
66961 Yellow
published = 12.88, measured = 12.97
66962 Silver
published = 14.00, measured = 14.37
66963 Black
published = 15.12, measured = 15.44
66964 Purple
published = 16.24, measured = 16.41
66965 Pink
published = 17.36, measured = 17.57
__________________
Brett H
"D-Main Specialist"
Tron is offline   Reply With Quote
Old 06-14-2011, 09:19 PM   #6
Tech Elite
 
BigDogRacing's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Memphis, TN
Posts: 2,955
Trader Rating: 12 (100%+)
Send a message via MSN to BigDogRacing
Default

Quote:
Originally Posted by sosidge View Post
All the current springs are wound linear.

People choose the HPI springs over the Tamiya springs because of the "feel" on the track, it's a misconception to say they are progressive. The HPI range has much finer steps between rates than the Tamiya range and also run a bit stiffer.

Petit RC have a fairly exhaustive spring chart for reference.

You can be fast on any spring (assuming they are a good basic quality), just select the right rates and dimensions to give the handling balance you want and to fit the shocks.
Ummm, how would you know if they're linear progression by only measuring rate at one compression depth?

Answer: You don't know

There's a lot more to spring progression than simply saying "all springs are wound linear". What you mean to say is the latest springs have linear coil spacing. Saying they're all wound linear is false. ALL springs are progressive. But some have a load curve and some load on a more linear progression.
BigDogRacing is offline   Reply With Quote
Old 06-15-2011, 01:46 AM   #7
Tech Champion
 
Join Date: Feb 2003
Location: Sydney, Australia
Posts: 5,310
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by BigDogRacing View Post
Ummm, how would you know if they're linear progression by only measuring rate at one compression depth?

Answer: You don't know

There's a lot more to spring progression than simply saying "all springs are wound linear". What you mean to say is the latest springs have linear coil spacing. Saying they're all wound linear is false. ALL springs are progressive. But some have a load curve and some load on a more linear progression.
To further add to that... The number of coils basically dictates how "progressive" the spring is. When comparing springs of the same (or similar rate) the spring with less coils will be more progressive.
__________________
Blade: Andro Treiber H 79g AN
FH: Donic Bluefire M3 Max Blk
BH: Donic Bluefire M2 Max Red
Powered by Falco
Dragonfire is offline   Reply With Quote
Old 06-15-2011, 03:56 AM   #8
Tech Addict
 
Join Date: Nov 2009
Location: Denmark
Posts: 562
Default

I don't want to be acting like I know a lot about springs (because I don't), but I can tell you this: My 417 transformed when changing from Tamiya springs to HPI springs (on asphalt). The car was so much better to drive!

I would still choose Tamiya springs on carpet, but for asphalt go for HPI Silvers all around.
__________________
Niklas Hansen
Team TCHobby / Team Upgrade-RC
Tamiya TRF417 / Speed Passion GT2.0 / Speed Passion V3 motors.
Nilks is offline   Reply With Quote
Old 06-15-2011, 06:42 AM   #9
Tech Initiate
 
Viper2011's Avatar
 
Join Date: Jun 2011
Location: Australia
Posts: 31
Default

really Ash-pelt and carpet,Regardless..It should not matter,The spring might work a little bouncer on Ash-Pelt but really not much difference between the two.
Viper2011 is offline   Reply With Quote
Old 06-15-2011, 07:13 AM   #10
Tech Champion
 
Join Date: Feb 2003
Location: Sydney, Australia
Posts: 5,310
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by Nilks View Post
I don't want to be acting like I know a lot about springs (because I don't), but I can tell you this: My 417 transformed when changing from Tamiya springs to HPI springs (on asphalt). The car was so much better to drive!

I would still choose Tamiya springs on carpet, but for asphalt go for HPI Silvers all around.
I have heard that same thing from so many drivers that I would accept it as fact.
__________________
Blade: Andro Treiber H 79g AN
FH: Donic Bluefire M3 Max Blk
BH: Donic Bluefire M2 Max Red
Powered by Falco
Dragonfire is offline   Reply With Quote
Old 06-15-2011, 09:32 AM   #11
Tech Apprentice
 
Join Date: Sep 2009
Posts: 66
Default

What about the Xray springs compared to the HPI-springs? How do they behave compared to each other?
Skynet is offline   Reply With Quote
Old 06-15-2011, 06:19 PM   #12
Suspended
 
Join Date: Jan 2010
Posts: 1,278
Trader Rating: 86 (100%+)
Default

i drive tcx but i use xray springs,
hot bodies pink springs are out of stock anywhere
littlealex is offline   Reply With Quote
Old 09-07-2014, 08:02 AM   #13
Tech Regular
 
Mitamiya's Avatar
 
Join Date: Aug 2011
Posts: 478
Trader Rating: 15 (100%+)
Default

I need opinions on touring car springs for med grip carpet racing for VTA. Will be using a Tamiya 418. Thanks.
__________________
MItamiya
Currently Racing
Offroad - Associated B5M Lite
Onroad - TRF 418 Samix VTA/TRF 419X USGT
Mitamiya is offline   Reply With Quote
Old 09-07-2014, 11:19 AM   #14
Tech Elite
 
Join Date: Nov 2008
Posts: 2,132
Trader Rating: 7 (100%+)
Default

this might help. for vta run in the 15-16 lb range in front and 13-14 range in the rear. hope this helps.

i run vta only.

for med grip i would suggest 15 ish front and 13 ish in back. i have the rsd carpet spring kit and they are good springs. i run the orange one in front and the blue in the back. car is pretty hooked up tc 6.1 but that car my never hit carpet by me again as now i run a arc r10 2015. have not been on carpet yet with it.
Attached Thumbnails
Touring Car Springs:-rsd_universal_spring_chart.jpg  
dragonracing is offline   Reply With Quote
Old 09-07-2014, 03:59 PM   #15
Tech Regular
 
Mitamiya's Avatar
 
Join Date: Aug 2011
Posts: 478
Trader Rating: 15 (100%+)
Default

Thank you
__________________
MItamiya
Currently Racing
Offroad - Associated B5M Lite
Onroad - TRF 418 Samix VTA/TRF 419X USGT
Mitamiya is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Xray, and Associated Touring car springs weaponx R/C Items: For Sale/Trade 9 07-01-2010 11:18 AM
HPI touring car springs jimfreeman77 R/C Items: Wanted to Buy 6 04-23-2009 07:31 AM
Touring Car springs - 20 Pairs Z00M Australia For Sale/Trade 16 09-08-2006 06:19 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 02:17 PM.


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