R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 02-27-2006, 07:48 AM   #13051
Tech Elite
 
Carl Giordano's Avatar
 
Join Date: Nov 2004
Location: Upper Saddle RIver, NJ
Posts: 2,309
Trader Rating: 24 (100%+)
Default

Quote:
Originally Posted by JoeGlover
I believe Martin is reffering to the upper camberlink position, not the hinge pin carriers. Although those will also slightly alter roll center as well.
Now you know why I can never answer anyone's question....
__________________
Mugen Racing / OS Engines / KO Propo / Byron Fuels / Schuur Speed Motors / AKA / Bruckner Hobbies / Tamiya M-Chassis / Kyosho / Yokomo / 360v2 Raceway / Cruzin with RC
Carl Giordano is offline   Reply With Quote
Old 02-27-2006, 07:48 AM   #13052
Tech Fanatic
 
Martin Crisp's Avatar
 
Join Date: Oct 2003
Location: Toronto Canada
Posts: 827
Default Carl

Hey Carl,

We may be using different terms (hinge pins and toe-in blocks)...but...

A high roll center (which reduces the roll) can be achieved by either adding shims under the hinge pin blocks or removing shims from the upper link on the inside attachment point. In other words you want the inboard end points of the lower A arm and the upper link closer together than the outboard end points of the A arm and the upper link.
__________________
Martin Crisp
Power-Story.com | LearnSetup.com
Martin Crisp is offline   Reply With Quote
Old 02-27-2006, 07:50 AM   #13053
Tech Fanatic
 
Martin Crisp's Avatar
 
Join Date: Oct 2003
Location: Toronto Canada
Posts: 827
Default hugo

hugo...0 degree
__________________
Martin Crisp
Power-Story.com | LearnSetup.com
Martin Crisp is offline   Reply With Quote
Old 02-27-2006, 07:58 AM   #13054
Tech Elite
 
Carl Giordano's Avatar
 
Join Date: Nov 2004
Location: Upper Saddle RIver, NJ
Posts: 2,309
Trader Rating: 24 (100%+)
Default

Quote:
Originally Posted by Martin Crisp
Hey Carl,

We may be using different terms (hinge pins and toe-in blocks)...but...

A high roll center (which reduces the roll) can be achieved by either adding shims under the hinge pin blocks or removing shims from the upper link on the inside attachment point. In other words you want the inboard end points of the lower A arm and the upper link closer together than the outboard end points of the A arm and the upper link.
Thank you. that anwsers a lot...I usually use the "X" theory for chassis set-up..your explaination clarrifies things for me...
__________________
Mugen Racing / OS Engines / KO Propo / Byron Fuels / Schuur Speed Motors / AKA / Bruckner Hobbies / Tamiya M-Chassis / Kyosho / Yokomo / 360v2 Raceway / Cruzin with RC
Carl Giordano is offline   Reply With Quote
Old 02-27-2006, 07:59 AM   #13055
Tech Fanatic
 
Martin Crisp's Avatar
 
Join Date: Oct 2003
Location: Toronto Canada
Posts: 827
Default x theory

ok...so I have to ask...what's the X theory?
__________________
Martin Crisp
Power-Story.com | LearnSetup.com
Martin Crisp is offline   Reply With Quote
Old 02-27-2006, 08:02 AM   #13056
Tech Fanatic
 
Martin Crisp's Avatar
 
Join Date: Oct 2003
Location: Toronto Canada
Posts: 827
Default carl...

you have mail.
__________________
Martin Crisp
Power-Story.com | LearnSetup.com
Martin Crisp is offline   Reply With Quote
Old 02-27-2006, 08:14 AM   #13057
Tech Elite
 
Carl Giordano's Avatar
 
Join Date: Nov 2004
Location: Upper Saddle RIver, NJ
Posts: 2,309
Trader Rating: 24 (100%+)
Default

Martin, I knew that was coming...

Imagine 3-points of your chassis as an "X"

point 1: Look at the chassis from the top. Draw an imaginary "X" across the right rear wheel (RRW) to the front left wheel (LFW) and vise versus.

This is used for chassis balance or tweak. to balance the car, you make the same adjustment to the RRW & LFW.


Point 2 & 3: the same for both the front and rear of the car. Looking at suspension arms

Draw an imaginary "X" across the upper and lower arms.

Lets say you do one adjustment: raise the inner hinge pins and lower the inner upper suspension mount = the shape of the imaginary lines will resemble more of an "X".

Basically position your edge of your hands on top of each other in front of you, like an "X"....Now change the angle of the "X"...basically this has the same effect of relocating the upper / lower suspension arms.

As you said. High Roll Center (reduces chassis roll) "In other words you want the inboard end points of the lower A arm and the upper link closer together than the outboard end points of the A arm and the upper link."

The higher the roll center, the more the imaginary lines looks like an "X"
__________________
Mugen Racing / OS Engines / KO Propo / Byron Fuels / Schuur Speed Motors / AKA / Bruckner Hobbies / Tamiya M-Chassis / Kyosho / Yokomo / 360v2 Raceway / Cruzin with RC

Last edited by Carl Giordano; 02-27-2006 at 08:25 AM.
Carl Giordano is offline   Reply With Quote
Old 02-27-2006, 10:15 AM   #13058
Tech Champion
 
Join Date: Nov 2002
Location: Chicago, IL
Posts: 7,664
Trader Rating: 37 (100%+)
Default

Anyone have any Rear Aluminum uprights for the standard 415 style suspension?



Also would be interested in any other standard and/or LW suspension pieces, or suspension mounts.

Just thought I'd ask here. PM me if so

Thanks.
__________________
Serpent Racing * Speed Passion * Fantom Racing * Windy City Raceway
Nexus is offline   Reply With Quote
Old 02-27-2006, 12:38 PM   #13059
Tech Master
 
bender's Avatar
 
Join Date: May 2004
Location: Brisbane
Posts: 1,504
Trader Rating: 4 (100%+)
Default

Martin-

I realise that sometimes an adjustment may not work as per a handling guide, but I've found that some guides (not yours btw) completely contradict each other.

When talking about caster and roll centres, I know that there are 2 guides (XRay and Losi) which have 100% opposite views on how they work

Theoretically, any adjustment should be consistant from car to car, it's just odd that there seems to be no definitive right or wrong answer.

It's a bit of a problem for people like me who know how to get a decent set-up quickly, but then have trouble extracting those last few tenths out of the car. In my case, I sometimes can't even feel some of the changes I've made

Anyway, as suggested by the guys here, I've got several things to try next time I race.
__________________
Jason W
FIR#2 - "You can't buy this much talent"
Durango Dex410 - Schumacher Cougar SV - Top Photon
bender is offline   Reply With Quote
Old 02-27-2006, 01:09 PM   #13060
Tech Champion
 
TryHard's Avatar
 
Join Date: Jun 2004
Location: Sydney, NSW
Posts: 5,284
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by Hugo
Is this new springs : TAM53440AO to replace the regular ones???
Or are they for carpet with foam???

Thanks
I think they could be the new white set... Ie all the springs are white.

@Nexus,
I think Tamiya make some...http://www.speedtechrc.com/store/ebp...id=459&id=1780 yup there you go.
__________________
| THard.co.uk | Xray | MuchMore |
TryHard is offline   Reply With Quote
Old 02-27-2006, 01:44 PM   #13061
Tech Champion
 
Join Date: Nov 2002
Location: Chicago, IL
Posts: 7,664
Trader Rating: 37 (100%+)
Default

Quote:
Originally Posted by TryHard
@Nexus,
I think Tamiya make some...http://www.speedtechrc.com/store/ebp...id=459&id=1780 yup there you go.

Thanks...TAM53687 is what I'm looking for. Just thought someone on this thread might have them used :P
__________________
Serpent Racing * Speed Passion * Fantom Racing * Windy City Raceway
Nexus is offline   Reply With Quote
Old 02-27-2006, 06:58 PM   #13062
Tech Master
 
veecee's Avatar
 
Join Date: Sep 2001
Posts: 1,439
Trader Rating: 34 (100%+)
Default

Quote:
Originally Posted by Stein Tumert
Atlas diff covers for 415 (MH7-TRF) See attached picture.

Stein
Thanks Stein.
veecee is offline   Reply With Quote
Old 02-28-2006, 04:55 AM   #13063
Tech Addict
 
Stein Tumert's Avatar
 
Join Date: Feb 2006
Location: Norway (Oslo) / Germany (Hamburg)
Posts: 556
Default White Springs

Quote:
Originally Posted by TryHard
I think they could be the new white set... Ie all the springs are white.

.

There is a limited edition set where all springs are white (small color code on top of each spring) http://www.tamiyausa.com/product/ite...oduct-id=49382

It is the same springs as the colored set TAM 53440.

Stein
Attached Thumbnails
Tamiya TRF415-tam-49382-white-springs.jpg  

Last edited by Stein Tumert; 02-28-2006 at 05:06 AM.
Stein Tumert is offline   Reply With Quote
Old 02-28-2006, 09:25 AM   #13064
Tech Initiate
 
Join Date: May 2003
Location: Acicastello,Sicily,Italy
Posts: 42
Default

anyone have a good setup or starting point or suggestion for my MSX with foams on medium grip track with modified motor ? Droop, Roll centre, blocks....etc. ??? Thanks in advance for all contribution.....
Mafodda is offline   Reply With Quote
Old 02-28-2006, 09:38 AM   #13065
Tech Master
 
nordheim's Avatar
 
Join Date: Jun 2005
Location: Puyallup, WA
Posts: 1,725
Trader Rating: 6 (100%+)
Default

I am new to the MSX family as I sold my Cyclone and purchased my 415 last week. Any setups posted online? Tried to look at the Tamiya website but couldn't find anything.
__________________
SEATTLEINDOORRACEWAY.COM - VALLEYVIEWRC.COM
nordheim is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
TAMIYA TRF415 Xray XB8 R/C Items: For Sale/Trade 32 04-04-2008 08:50 PM
Tamiya TRF415 Crashmaster R/C Items: For Sale/Trade 19 12-13-2006 04:48 PM
Tamiya TRF415 MS NIB koabich R/C Items: For Sale/Trade 8 11-11-2005 07:28 AM
F/S Tamiya TRF415 rraden R/C Items: For Sale/Trade 20 06-10-2005 09:02 PM
Tamiya Evo IV or TRF415 TheDevil Electric On-Road 23 10-15-2004 07:27 PM



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 09:01 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net