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Return of Lunchbox..

Old 04-29-2007, 06:37 PM
  #1501  
Aslvrfrost98csvt
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Default RE: Return of Lunchbox..

which spacers and would these shocks work lunchboxer ?
http://www2.towerhobbies.com/cgi-bin...?&I=LXHSR4&P=Z
Old 04-29-2007, 06:54 PM
  #1502  
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Default RE: Return of Lunchbox..


Can't help you there, never have those shocks myself.. but sounds like you can put in different spacers to limit the shock length.. should be fine...


ORIGINAL: Aslvrfrost98csvt

which spacers and would these shocks work lunchboxer ?
http://www2.towerhobbies.com/cgi-bin...?&I=LXHSR4&P=Z
Old 04-29-2007, 07:03 PM
  #1503  
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Default RE: Return of Lunchbox..


Just typical Tamiya plastic shocks... although I don't know if there's such a thing as a good handling LB.. so I am not sure if you really need it.. But, doesn't hurt, for sure!

I have them on my LB...




ORIGINAL: Aslvrfrost98csvt

anybody know how the tamiya upgrade shocks are

http://www2.towerhobbies.com/cgi-bin...?&I=LXGG67&P=7
Old 04-29-2007, 07:17 PM
  #1504  
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Default RE: Return of Lunchbox..

i just want to get rid of as much bounce as i can
Old 04-30-2007, 01:35 AM
  #1505  
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Default RE: Return of Lunchbox..


ORIGINAL: Aslvrfrost98csvt

i just want to get rid of as much bounce as i can
in that case, take the shocks off, and the big tyres
Old 04-30-2007, 01:46 AM
  #1506  
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Default RE: Return of Lunchbox..

they dont call non dampened shocks "BOINGERS" for nothin just put a decent set of oil shocks on it.. and if the tires are too much bounce for you put some foams in em
Old 04-30-2007, 06:27 AM
  #1507  
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Default RE: Return of Lunchbox..


ORIGINAL: Lunchboxer

although I don't know if there's such a thing as a good handling LB..
WHAT?!?!?!?!?!
Old 04-30-2007, 08:24 AM
  #1508  
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Default RE: Return of Lunchbox..


Part of the charm of having a LB....




ORIGINAL: broncojd


ORIGINAL: Lunchboxer

although I don't know if there's such a thing as a good handling LB..
WHAT?!?!?!?!?!
Old 04-30-2007, 09:02 AM
  #1509  
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Default RE: Return of Lunchbox..


ORIGINAL: broncojd

that esc can only handle a 20t motor...don't see how it could be better than the teu-101bk...that is a great esc, it just doesn't handle high power motors
can you enlight me pls...more powerful means more T-s?...more torque, or more rpm ? 10x
Old 04-30-2007, 10:00 AM
  #1510  
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Default RE: Return of Lunchbox..

electric motors BASICALLY break down like this:
lower turns = more power (more everything, rpm, torque, speed, etc)

the tamiya esc will handle a 20t motor and they don't break

if you are going to use a 20t motor, there is no need to buy an after market esc that can only handle a 20t motor like the futaba. the only reason to replace the tamiya esc would be that you are going to use a motor with a lower turn limit.
Old 04-30-2007, 10:04 AM
  #1511  
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Default RE: Return of Lunchbox..


Lower turn motors usually give up some torque for the extra rpm, but still come out on top when it comes to power.. (so the gain in rpm is more than the loss in torque)
Old 04-30-2007, 10:26 AM
  #1512  
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Default RE: Return of Lunchbox..

so, for instance, an 15T motors is better than a 20T one...have more rpm( that means more speed), and also more torque???
Old 04-30-2007, 10:35 AM
  #1513  
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Default RE: Return of Lunchbox..


In generally, 15T motor would have higher rpm than a 20T motor.. 15T would have less torque.. but overall, it will have more power..

(obviously, actual performance would vary, a crappy 15T motor vs. a hand build 20T motor, for example.. but if you compare similar quality motors.. that's usually the case)
Old 04-30-2007, 10:41 AM
  #1514  
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Default RE: Return of Lunchbox..

i couldn't quickly find a line of motors with power ratings that included torque, but check out this list. you can see that as the number of turns increases, you decrease power (power usage, how quickly you drain your battery) and increase rpm.

15t orion double method motor
http://www2.towerhobbies.com/cgi-bin...?&I=LXJBX4&P=7
Max Power: 122.4 Watts
Max RPM: 31,323 (both power & RPM measured @ 7.2V)

19t orion double method motor
http://www2.towerhobbies.com/cgi-bin...?&I=LXJBX7&P=7
Max Power: 119.8 Watts
Max RPM: 27,772 (both power & RPM measured @ 7.2V)

21t orion double method motor
http://www2.towerhobbies.com/cgi-bin...?&I=LXJBX8&P=7
Max Power: 116.3 Watts
Max RPM: 26,104 (both power & RPM measured @ 7.2V)
Old 04-30-2007, 10:48 AM
  #1515  
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Default RE: Return of Lunchbox..

It is interesting that those power #s are so close.. I'd have imagined that there are more difference between motors w/ different turns.. who knows!

But since the power output is a function of torque and rpm (torque x rpm x some constant, depends on what units you are using), you can see that if the power is the same, the one w/ higher rpm would have lower torque..

Note I am assuming the power rating listed is the mechanical power (i.e., Orion probably dynoed the motors) In terms of the power usage that you said (voltage x current), then you'd need to take into account of different efficiency between the motors.. but if you assume (again, rough assumption) that the electrical power is converted to mechanical power at similar efficiency, the relationship would still hold..
Old 04-30-2007, 11:11 AM
  #1516  
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Default RE: Return of Lunchbox..

the box should come with this wheelie bar
Old 04-30-2007, 11:12 AM
  #1517  
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Default RE: Return of Lunchbox..


Ha, that would be cool!!
Old 04-30-2007, 11:19 AM
  #1518  
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Default RE: Return of Lunchbox..

ORIGINAL: Lunchboxer

But since the power output is a function of torque and rpm (torque x rpm x some constant, depends on what units you are using), you can see that if the power is the same, the one w/ higher rpm would have lower torque..

Note I am assuming the power rating listed is the mechanical power (i.e., Orion probably dynoed the motors) In terms of the power usage that you said (voltage x current), then you'd need to take into account of different efficiency between the motors.. but if you assume (again, rough assumption) that the electrical power is converted to mechanical power at similar efficiency, the relationship would still hold..
my eyes have completely glazed over & there's a big question mark over my head, now......

i like it better when it is more like this...

lower turn = faster motor & shorter run times
&
esc limit < number of turns in your motor

that's the way hobby should be: easy.
Old 04-30-2007, 11:26 AM
  #1519  
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Default RE: Return of Lunchbox..


I agree, it should be easy, so in general term, it is perfectly right what you said:

Higher turn -> more torque, less power, less rpm, longer run-time (that's why people use lathe motor for crawler, crazy torque!!)

Lower turn -> less torque, higher power, higher rpm, less run-time!
Old 04-30-2007, 11:30 AM
  #1520  
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Default RE: Return of Lunchbox..


ORIGINAL: Lunchboxer


I agree, it should be easy, so in general term, it is perfectly right what you said:

Higher turn -> more torque, less power, less rpm, longer run-time (that's why people use lathe motor for crawler, crazy torque!!)

Lower turn -> less torque, higher power, higher rpm, less run-time!
now explain the x1 / 2 bit lol
Old 04-30-2007, 01:18 PM
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Default RE: Return of Lunchbox..

so, on stock TAMIYA ESC, can handle every motor till the 20T, no powerfull motors, (that means no any small number than 20), but can put a higher torque motors, as 23 or 25 in it...is that right ???
Old 04-30-2007, 01:51 PM
  #1522  
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Default RE: Return of Lunchbox..


Yeah, you got that right.. although technically, the official spec on the Tamiya TEU-101 ESC is supposedly only goo for 27T motor.. but Tamiya is usually pretty conservative.. people have been getting away w/ running anything from stock motor down to 20T (some say 19T, some say no..) So try it and let us know.. ha!!




ORIGINAL: cornel4web

so, on stock TAMIYA ESC, can handle every motor till the 20T, no powerfull motors, (that means no any small number than 20), but can put a higher torque motors, as 23 or 25 in it...is that right ???
Old 05-01-2007, 01:38 AM
  #1523  
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Default RE: Return of Lunchbox..


ORIGINAL: cornel4web

so, on stock TAMIYA ESC, can handle every motor till the 20T, no powerfull motors, (that means no any small number than 20), but can put a higher torque motors, as 23 or 25 in it...is that right ???
true, but these esc's seem to be invincible, so i would say put any motor you want on it
Old 05-01-2007, 07:28 AM
  #1524  
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Default RE: Return of Lunchbox..


What makes you say that?! Just curious....

Maybe you can stick a 15T on it and let us know how it runs....



ORIGINAL: rcluke
true, but these esc's seem to be invincible, so i would say put any motor you want on it
Old 05-01-2007, 09:53 AM
  #1525  
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Default RE: Return of Lunchbox..

Unless you go into the Trinity cobalt line of motors. The torque and rpm both go up with lower turns. How do you like that for confusion?

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