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Yokomo MR-4TC SD

Old 01-26-2006, 06:47 AM
  #14911  
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ASk Masa of Champ R/C he is dealer of Yokomo. I think most of us used the conversionkit, so did I
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Old 01-26-2006, 07:27 AM
  #14912  
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Thanks. I think I'm going to get a spool anyway from Steve since he has them buy one get one free. Can't wait to get my kit. If it is anything like the BD I had it should be great. Glad to be back in onroad.
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Old 01-26-2006, 09:57 AM
  #14913  
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Sorry about that Nismo! It was early and I didn't see that there wasn't a conversion infront of KIT. BTW there is another local using the BD and he said it looked really good. I just love the lack of belt slap with a SD.
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Old 01-28-2006, 07:55 AM
  #14914  
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seaball!!! welcome to the yokomo thread........enjoy!
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Old 01-30-2006, 04:04 PM
  #14915  
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Originally Posted by wes
Part Number Colour Spring Rate lbs/inch
YS-1360 Black 9.67
YS-1355 Blue 10.45
YS-1465 White 11.01
YS-1460 Hot Yellow 12.85
YS-14525 Stainless 12.89
YS-14575 Hot Pink 13.09
YS-1455 Hot Green 13.75
YS-1450 Hot Orange 17.68

YS-1560 Dark Green 16.21
YS-1660 Red 18.29
YS-1655 Yellow 22.54
YS-1650 Green 24.87
YS-1760 Silver 25.89
YS-1755 Grey 26.38
YS-1750 Brown 32.08


Ok, I've been doing some research on this and I just need some clarification. Most of what I've read here seem to indicate that the blue springs are 10.45 but another reliable source tells me that it is 12.12 I just need to know which is sure since it makes a world of difference for me whether or not I will end up putting it in the front or rear. There are some differences in the two charts I have and I wanted to what people geberally follow and is more accurate. Thanks! Here's the spring rate chart that he gave me:

There are actually 2 versions of the spring rates floating around in the SD and BD threads on rctech.net. The 'original' one below was compiled by Ling Kang Tong, a fellow racer (an MIT grad who currently works in a lab at a bio company.) He happened to have access to a very accurate spring tester. His list is probably the more widely referenced list.

Although I'm not sure why the Yokomo Blue came out softer than the White on his list...

Spring Rates(lbs. / sq.in)

YOKOMO
Orange 18.87
Green 16.06
Pink 14.93
Yellow 14.71
White 12.94
Blue 12.12

RAYSPEED
Gray 19.90
Red 18.25
White 17.17
Yellow 14.87
Blue 14.29
Green 13.20

T A M I Y A
Purple 22.72
Gray 20.91
White/S 17.24
Blue/S 15.27
White 14.82
Blue 14.08
Yellow 13.33
Red/S 13.24
Yellow/S 12.90
Red 11.86

ASSOCIATED
White 40.00
Yellow 31.91
Purple 30.30
Copper 23.26
Red 23.06
Gold 18.35
Blue 16.53
Silver 13.89
Green 11.43
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Old 01-30-2006, 04:57 PM
  #14916  
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Here's what I have in order of Spring Rate:

Make Part Number Colour "Spring Rate lbs/in"
Yokomo YS-1360 Black 9.67
Yokomo YS-1355 Blue 10.45
Yokomo YS-1465 White 11.01
Associated TC3 Green 12.00
Yokomo YS-1460 Hot Yellw 12.85
Yokomo YS-14525 Stainless 12.89
Yokomo YS-14575 Hot Pink 13.09
Yokomo YS-1455 Hot Green 13.75
Serpent front Orange 13.66 to 14.02
Associated TC3 Silver 14.50
Losi LOSA5125 Blue 14,60
Yokomo YS-1560 Dark Green 16.21
Associated TC3 Blue 17.00
Serpent front White 17.22 to 16.24
Losi LOSA5126 Dark Green 17,50
Yokomo YS-1450 Hot Orange 17.68
Yokomo YS-1660 Red 18.29
Associated TC3 Gold 19.50
Losi LOSA5108 Purple 20,00
Associated TC3 Red 22.00
Yokomo YS-1655 Yellow 22.54
Serpent front Yellow 23.16 to 22.78
Yokomo YS-1650 Green 24.87
Losi LOSA5110 Black 25,00
Associated TC3 Copper 25.00
Yokomo YS-1760 Silver 25.89
Yokomo YS-1755 Grey 26.38
Serpent front Red 27.69 to 25.77
Losi LOSA5112 White 30,00
Associated TC3 Purple 30,00
Serpent front Blue 32.07 to 32.13
Yokomo YS-1750 Brown 32.08
Losi LOSA5114 Orange 35,00
Associated TC3 Yellow 35,00
Serpent front Purple 37.50 to 36.79
Losi LOSA5115 Yellow 40,00
Associated TC3 White 40,00
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Old 01-31-2006, 12:25 PM
  #14917  
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Hi,

perhaps some of you read in the BD thread and have seen that I will make a thicker carpet chassis for the BD.
I just want to ask you guys whether you are interested in one for the LCG aswell? I will make one for mine for sure but haven't made any drawings yet.
What are your expectations towards a new chassis?
I expect the chassis to be in the same price region as the Yokomo chassis (BD chassis is 85$)...

Cheers
Chris
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Old 01-31-2006, 01:09 PM
  #14918  
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Steve at speedtechrc.com was looking into having a chassis made for the LCG. There is definitely interest in the chassis. A number of guys expressed interest. You should post an entry on the LCG thread to Speedtechrc to see where he stands. I got the impression it may be a while before they could work on the LCG chassis.
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Old 01-31-2006, 02:02 PM
  #14919  
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Speedy...three questions about your chassis. 1) are they hand cut or machine cut? 2) what grade of graphite are you using (Component or Quasi grade) 3) would the chassis be just a thicker version of the stock chassis or will you are be making design changes as well?
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Old 01-31-2006, 02:16 PM
  #14920  
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Arrow upgrade?

- hubert crandall -
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Old 01-31-2006, 02:58 PM
  #14921  
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hey people,
how do you guys find the lcg compared to the bd?

i have run the bd before, but may well go a lcg. any input would be great.
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Old 01-31-2006, 07:45 PM
  #14922  
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I've driven both with the same set-ups and I like my LCG better only because of the throttle snap out of the corner. Other than that I think they are about the same. I have however managed to get a lap in the 6sec range vs the 8 I was running before the LCG conversion. Now if I can get more consistant it will be on!
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Old 01-31-2006, 08:19 PM
  #14923  
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Originally Posted by TheRo0sTer
I've driven both with the same set-ups and I like my LCG better only because of the throttle snap out of the corner. Other than that I think they are about the same. I have however managed to get a lap in the 6sec range vs the 8 I was running before the LCG conversion. Now if I can get more consistant it will be on!
what??? a lap in the 6 second range... a 6 second lap how small is the track you are on? yeah only reason i ask this question is cause i have only had one shaft car in all the time racing & i thought it sucked. no it was not a yokomo. i beleive from what people are saying that the lcg is one of the only shaft cars that does not suffer from torque steer. is this true?
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Old 01-31-2006, 08:48 PM
  #14924  
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You're correct,
I've compared the LCG to other shafties, and it was the only one to run straight as an arrow, uber easy to set up same as the BD.
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Old 01-31-2006, 10:36 PM
  #14925  
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Hi,

@DOTMAN: The chassis are machined on a CNC mill. The carbon will be component because I think it is stiff enough.
I thought about 3mm but any other thickness is possible aswell. I have to look closer at the chassis to see what I can change but I think I will leave out some cut outs and try to make the chassis a few millimeters narrower.

Cheers
Chris
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