Go Back  R/C Tech Forums > International Forums > Australian Racing
21.5 Brushless vs 540 Silver Can - Time to change? >

21.5 Brushless vs 540 Silver Can - Time to change?

Community
Wiki Posts
Search

21.5 Brushless vs 540 Silver Can - Time to change?

Thread Tools
 
Search this Thread
 
Old 11-02-2009, 04:18 AM
  #16  
Tech Elite
iTrader: (16)
 
fleetmaster's Avatar
 
Join Date: Sep 2006
Location: NSW
Posts: 2,653
Trader Rating: 16 (100%+)
Default

Has anyone compared the differences in performance over a larger track, say like Whalan ?? Curious to see how much faster the b/l is.......I expect that the gap would widen more, especially with a timing advance esc.

I know I certainly don't miss the maintenance
fleetmaster is offline  
Old 11-02-2009, 02:17 PM
  #17  
TJ
Tech Champion
 
TJ's Avatar
 
Join Date: May 2002
Posts: 7,485
Default

With the results from the test meeting we had at Windsor Hobby's there is not much difference in combinations of speed control and motor. We had 14-16 drivers Ben Cribbin was running 540 and Splitty was running the lower hobbywing system. Ben was about middle of the pack with a 540 and made the A final splitty TQ and went away to win with also do the fastest time. We took records of what drivers were running and changes through the meeting. If you look at the fastest times its quite close.

This is the Link: http://www.windsorhobbies.com.au/res...IndexFile.html

Don't know how it would go on bigger tracks all testing has been done on smaller ones
TJ is offline  
Old 11-02-2009, 03:48 PM
  #18  
Tech Elite
iTrader: (16)
 
fleetmaster's Avatar
 
Join Date: Sep 2006
Location: NSW
Posts: 2,653
Trader Rating: 16 (100%+)
Default

The reason I ask about larger tracks,is that I've been told that the SPX makes a bigger gain on them.
Around Windsor , the SPX yields .2 - .3 second for me , over my budget Havoc speedy.

Whrc has a brand new SPX on the shelf for under 300 clams. I thing the Team Wave speedy,
Which others are raving about, is almost half the price.
Last week in stock ,my pb lap was only a few thousandths faster than a guy running an RB30 + same motor .

I don't think mandating a sensorless esc Is a good idea. Better to have one that grows with your skill. (I.e. 10.5)

Rollout limits only disadvantage those with a non adv. Esc. And add extra tech B.S.

My 2c . ( not worth much really)
fleetmaster is offline  
Old 11-02-2009, 04:19 PM
  #19  
Tech Master
iTrader: (6)
 
ford_racing's Avatar
 
Join Date: Aug 2004
Location: Canberra
Posts: 1,480
Trader Rating: 6 (100%+)
Default

No. They are not even.

540 should be kept as it is what comes in all Tamiya Kits.

With brushless there is the 'turbo' feature on the Tekin's and timing advances on many other speedies. This all adds cost as to be competitive you must have the correct settings for the track you are racing at.
Quite often this leads to bring laptops to update the software for your toy car.

540 is one of the remaining real fun classes, where you can put a motor in, gear it reasonably aggressive and still be competitive.

At the moment you could still take a basic TA05 kit and run it reasonable successfully provided you can get the gearing close to what suits the track.

Brushless does not provide that same ability.
ford_racing is offline  
Old 11-02-2009, 06:33 PM
  #20  
Tech Champion
iTrader: (35)
 
cannon's Avatar
 
Join Date: Sep 2003
Location: A total distraction
Posts: 7,266
Trader Rating: 35 (100%+)
Default

Fleety,

The concept of using a cheap sensorless system has several advantages over going down the 21.5 track:

* Firstly you get the whole system (motor, ESC and program card) for virtually the same price as a 21.5 motor

* You get equal racing because everyone is using the same ESC.(see the Mini class since introduction of the Hobbywing system) The problem with 21.5 is that racers will end up chasing the latest and greatest ESC which will turn 21.5 into a very expensive class.

* The argument of going sensored as the ESC will grow with you is non existant as the whole sensorless system is the same cost so if you move up a class you will not lose anything as the system can be sold on to other racers and you are no worse off than before. And dont forget by the time someone moves up a class the sensored ESC will be outdated and they will need the "latest and gretest"

The 21.5 or Novice or whatever you want to call it is supposed to be a budget entry class , not a full on expense class of racing.

No doubt some people will see my comments as pushing my own agenda but I will always be able to sell systems not matter what happens.
cannon is offline  
Old 11-03-2009, 05:05 AM
  #21  
Tech Elite
iTrader: (25)
 
NOFX's Avatar
 
Join Date: Oct 2002
Location: Sydney
Posts: 4,502
Trader Rating: 25 (100%+)
Default

Originally Posted by RCMADMAN
Hi a little off the topic but,

I can think of 10+ people that I could name that have left this hobby because it is too serious. Silver can is the last part of this hobby that remains cheap.
What we have to remember is this is radio control car racing, it doesnt encapsulate the whole hobby, theres nothing to stop those dudes, painting up cool bodies and drivng their cars around with friends and having a ball outside the racing scene

Originally Posted by ford_racing
No. They are not even.

540 should be kept as it is what comes in all Tamiya Kits.

With brushless there is the 'turbo' feature on the Tekin's and timing advances on many other speedies. This all adds cost as to be competitive you must have the correct settings for the track you are racing at.
Quite often this leads to bring laptops to update the software for your toy car.

540 is one of the remaining real fun classes, where you can put a motor in, gear it reasonably aggressive and still be competitive.

At the moment you could still take a basic TA05 kit and run it reasonable successfully provided you can get the gearing close to what suits the track.

Brushless does not provide that same ability.
im with you that there is way too much flexibility in the brushless systems, timing on the motor, timing on the speedy, variable timing, boost etc, its nuts when the idea is these classes are meant to be spec, how roar and co let it get out of hand is beyond me, but 540 isnt much better, u have to be lucky to buy a motor and be on the pace, normally people buy a bunch and test them and pick one, im a fan of the 540s but big events need to be handouts

Originally Posted by cannon
Fleety,

The concept of using a cheap sensorless system has several advantages over going down the 21.5 track:

* Firstly you get the whole system (motor, ESC and program card) for virtually the same price as a 21.5 motor

* You get equal racing because everyone is using the same ESC.(see the Mini class since introduction of the Hobbywing system) The problem with 21.5 is that racers will end up chasing the latest and greatest ESC which will turn 21.5 into a very expensive class.

* The argument of going sensored as the ESC will grow with you is non existant as the whole sensorless system is the same cost so if you move up a class you will not lose anything as the system can be sold on to other racers and you are no worse off than before. And dont forget by the time someone moves up a class the sensored ESC will be outdated and they will need the "latest and gretest"

The 21.5 or Novice or whatever you want to call it is supposed to be a budget entry class , not a full on expense class of racing.

No doubt some people will see my comments as pushing my own agenda but I will always be able to sell systems not matter what happens.
u know what Greg, you've actually sold me, ur dead right about the esc market and everyone jumping for the new thing, though my experience in off road is a lot of that stuff is crap anyway, a 17.5 can only do so much work no matter what the timing etc is set at and changes in the rev range, heat is the limiting factor anyway, ykind of rob peter to pay paul, they get more revs etc, but have to gear it down so it doesnt cook, my standard losi motor/speedy combo is as fast, its all about good packs. anyway back on track, my other thought was i dont really understand why there still is a 540 class in big meets in on road (i dont want people to get their knickers in a knot) but honestly, the amount of grip from a touring car compared to off road, and its been phased out in off road, i know people have fun in the class but it seems odd to have 4 motor classes for one chassis type. i like this discussion, lots of different points of view, but no one getting hot under the collar.
NOFX is offline  
Old 11-03-2009, 05:20 PM
  #22  
Tech Initiate
 
THE HUNTER MKII's Avatar
 
Join Date: Jul 2009
Posts: 22
Lightbulb

I say leave the motor rules the way they are , But limit it to cheaper car kits like TA05's - Cyclone S or any bath tub or entry level type chassis.

I'm sick of going to races & seeing $500 + top of the line cars running $20 540 motor .

THE HUNTER MKII is offline  
Old 11-03-2009, 06:46 PM
  #23  
Tech Elite
iTrader: (16)
 
fleetmaster's Avatar
 
Join Date: Sep 2006
Location: NSW
Posts: 2,653
Trader Rating: 16 (100%+)
Default

That is never going to happen,as a lot of new drivers prefer to buy a used Xray or TRF, than a budget car.
It makes no sense to turn new comers away because of their chassis brand.

I think 21.5 are a little too quick for a beginner and the jump to stock is more of a stumble.
I agree with some of Cannon's points as well. I also think the HobbyWing that Splitty ran had potential to be faster again.
Was that one a 1900kv motor ? If it was ,perhaps a 1500-1700 may be more suited to the job.

Anyhow, debate is good. Keep it constructive ...
fleetmaster is offline  
Old 11-03-2009, 07:03 PM
  #24  
Tech Elite
Thread Starter
iTrader: (7)
 
tony gray's Avatar
 
Join Date: Jun 2002
Location: Melbourne, Australia. Home of rc-mini.net
Posts: 3,549
Trader Rating: 7 (100%+)
Default

Wow, who'da thought that I'd be the one to start a constructive topic, AND one that wasn't even about Minis!
tony gray is offline  
Old 11-03-2009, 07:24 PM
  #25  
Tech Fanatic
iTrader: (23)
 
BLUE 2's Avatar
 
Join Date: Oct 2006
Posts: 821
Trader Rating: 23 (100%+)
Talking

Hi

Would this work ?



Only 2000 KV so 14800 rpm at 7.4v

See ya
BLUE 2 is offline  
Old 11-03-2009, 08:11 PM
  #26  
TJ
Tech Champion
 
TJ's Avatar
 
Join Date: May 2002
Posts: 7,485
Default

Originally Posted by tony gray
Wow, who'da thought that I'd be the one to start a constructive topic, AND one that wasn't even about Minis!
Yes........ "Just wait", in about 4 weeks time , then it will really hot up.
TJ is offline  
Old 11-03-2009, 10:13 PM
  #27  
Tech Master
iTrader: (43)
 
Join Date: May 2009
Posts: 1,301
Trader Rating: 43 (100%+)
Default

4 weeks? Whats happens then...?
matrix101 is offline  
Old 11-03-2009, 10:46 PM
  #28  
Tech Elite
iTrader: (5)
 
Bishop's Avatar
 
Join Date: May 2004
Location: Brisbane
Posts: 2,223
Trader Rating: 5 (100%+)
Default

Don't take this the wrong way, but what I saw at a state event, was $600+ carbon cars covered with alloy, running a $20 motor, lets not even look at the $500 worth of radio gear...

Yeah I know it's not all new cars, so maybe not worth that much, but still come on, something about the whole debate makes no sense to me, but then I'm still trying to figure out how you put the nitro fuel in the lipo case, or what conversion process makes that turn the engine...
Bishop is offline  
Old 11-03-2009, 10:53 PM
  #29  
Tech Elite
iTrader: (5)
 
Bishop's Avatar
 
Join Date: May 2004
Location: Brisbane
Posts: 2,223
Trader Rating: 5 (100%+)
Default

Originally Posted by THE HUNTER MKII
I say leave the motor rules the way they are , But limit it to cheaper car kits like TA05's - Cyclone S or any bath tub or entry level type chassis.

I'm sick of going to races & seeing $500 + top of the line cars running $20 540 motor .

I missed you post on the first read, that was one of my first thoughts when I was watching electric, where is the non carbon class?, plastic/fiberglass tub chassis only, limited motor, from what I have seen electric runs some mad expensive gear in all classes.
Bishop is offline  
Old 11-03-2009, 11:09 PM
  #30  
Tech Master
iTrader: (43)
 
Join Date: May 2009
Posts: 1,301
Trader Rating: 43 (100%+)
Default

I also think there is room for an rtr type class, limited to tub type chassis with an affordable power combo.
I know that many new guys to racing will buy a 2nd hand Xray or whatever, but the hobby shops still sell plenty of RTR kits. Cars like TA05 and TB01/02 from Tamiya, HB Cyclone S, the tub version of the TC4/TC5 etc.
matrix101 is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.