R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 08-23-2007, 01:10 AM   #1
Tech Rookie
 
Join Date: Aug 2007
Location: old boy from 'the switch'. now live in Brisbane.
Posts: 24
Default 4wd Brushless Combination?

Hello,
Just a wondering. I'm just getting back into the sport after a number of years modelling swimwear in Europe. No seriously now, I am wondering what a good combination would be for motor and esc when purchasing a system for a good competition buggy i.e. zx5 or cyclone d4? I am considering an lrp sphere esc and Neo one star 13t motor.

Is 13 turns enough power to run in modified?

How low do most racers go (turns) before the power is too ridiculous to lay down?

And the terminology is sometimes confusing i.e. a novak 4300 brushless motor is comparable to a stock 27t motor, a novak 13.5 is comparable to a stock 27t motor. What is the 13.5 a measure of?

Listen I know there are a lot of questions but any help would be appreciated, as I just want a good off road motor with plenty of torque, good power but nothing silly that I'll be selling on ebay too soon.

thanks.
__________________
Hotshot...Turbo Optima.....big gap...then....lazer ZX5/Cyclone d4
Marshy is offline   Reply With Quote
Old 08-23-2007, 01:20 AM   #2
Tech Initiate
 
pdungadamo's Avatar
 
Join Date: Aug 2007
Posts: 44
Default

13.5 is "equivalent" to 27 Stock

4300 or 10.5r is like a 19t

5800 or 8.5r = 16t

7.5r = 14 t

6.5r = 12t


if you are new start off with the 10.5r and work your way up

but no ones going to listen, most people will start with a 4.5r and then a few months later are asking questions like "how do i make my 4.5r go slower"
pdungadamo is offline   Reply With Quote
Old 08-23-2007, 01:24 AM   #3
Tech Rookie
 
Join Date: Aug 2007
Location: old boy from 'the switch'. now live in Brisbane.
Posts: 24
Default

Quote:
Originally Posted by pdungadamo View Post
13.5 is "equivalent" to 27 Stock
4300 or 10.5r is like a 19t
5800 or 8.5r = 16t
7.5r = 14 t
6.5r = 12t
if you are new start off with the 10.5r and work your way up
but no ones going to listen, most people will start with a 4.5r and then a few months later are asking questions like "how do i make my 4.5r go slower"
thanks for the feedback. Do you think the Reedy Neo 13t brushless would be a case of too much, too soon?
__________________
Hotshot...Turbo Optima.....big gap...then....lazer ZX5/Cyclone d4
Marshy is offline   Reply With Quote
Old 08-23-2007, 01:35 AM   #4
Tech Initiate
 
pdungadamo's Avatar
 
Join Date: Aug 2007
Posts: 44
Default

if you are starting out then yes. thats really like a stock motor though.
pdungadamo is offline   Reply With Quote
Old 08-23-2007, 02:47 AM   #5
Tech Addict
 
fathead's Avatar
 
Join Date: Sep 2003
Location: Auckland NZ
Posts: 575
Default

Quote:
Originally Posted by Marshy View Post
What is the 13.5 a measure of?
The 13.5 refers to the number of turns, just like a brushed motor, but the brushless run with much lower turns.

As was said in a previous post a 6.5 is equivalent to a 12turn brushed motor.

I would say for 4WD offroad a 6.5 or 7.5 would be a good starting point.
__________________
Slavich Design
fathead is offline   Reply With Quote
Old 08-23-2007, 03:57 AM   #6
Tech Rookie
 
Join Date: Aug 2007
Location: old boy from 'the switch'. now live in Brisbane.
Posts: 24
Default

Quote:
Originally Posted by fathead View Post
The 13.5 refers to the number of turns, just like a brushed motor, but the brushless run with much lower turns.

As was said in a previous post a 6.5 is equivalent to a 12turn brushed motor.

I would say for 4WD offroad a 6.5 or 7.5 would be a good starting point.
Cheers for the advice fellas. I think I'll go with the Reedy neo 13 turn, I might pick up a brushed stock motor also, just to shake off a few cobwebs before I go for some serious air.
How about Brushless speed controls, should I go the lrp sphere or are there some better brushless/brushed esc's out there?
__________________
Hotshot...Turbo Optima.....big gap...then....lazer ZX5/Cyclone d4
Marshy is offline   Reply With Quote
Old 08-23-2007, 06:09 AM   #7
Tech Elite
 
Jerry P's Avatar
 
Join Date: Nov 2006
Location: Astoria, NY
Posts: 2,436
Trader Rating: 44 (100%+)
Default

I just started running 4wd, i picked up a LRP sphere comp with an x11 6.5t motor and i love it. the car doesnt feel too fast. it feels just right.
__________________
Jerry P
Awesomatixusa - Side Piece Racing - LRP - Sweep Racing Tires - Mike L Designs - TQ Wires - Crispy Critters Raceway

www.awesomatixusa.com
Jerry P is offline   Reply With Quote
Old 08-23-2007, 07:39 AM   #8
Tech Adept
 
Join Date: Jul 2007
Location: Washington
Posts: 191
Default

I have only been racing 4 or 5 months and I just recently picked up a bj4 (4wd) and put the novak gtb with a 7.5 in it. my first run at anything that wasnt stock speeds. I found it fairly easy to drive and the power, while way more than I was use to, was controllable by all means.

I have the gtb in both my cars, but I am getting a sphere for my t4 in the very near future.
__________________
Brew Crew Racing {Washington Chapter}
Home Track: Tacoma R/C Raceway

Associated B4, LRP Sphere Comp, 13.5 Novak/7.5 Novak (soon to be an X6)
Associated T4, LRP Sphere Comp, 13.5 Novak/7.5 Novak (X60 when it becomes available)
X-Factory X5, Novak GTB, 7.5 Novak (soon to be and X5^2)
Sponsor: My lovely wife Debi
Sweet Lou is offline   Reply With Quote
Old 08-25-2007, 09:09 PM   #9
Tech Rookie
 
Join Date: Aug 2007
Location: old boy from 'the switch'. now live in Brisbane.
Posts: 24
Default

Hey fellas,

Which is the best brushless esc for ease of use, thermal capacity and overall competitiveness? LRP sphere or novak GTB or something esle? Who makes the best brushless motors for off road at the moment? I'm still leaning towards the Reedy Neo 13t or maybe an 11t 2 star Neo as they seem to market these towards the off roaders.

Cheers
__________________
Hotshot...Turbo Optima.....big gap...then....lazer ZX5/Cyclone d4
Marshy is offline   Reply With Quote
Old 08-25-2007, 09:39 PM   #10
Tech Elite
 
ChadRacing's Avatar
 
Join Date: Apr 2005
Location: Atlanta, Ga
Posts: 2,651
Trader Rating: 3 (100%+)
Default

You should go with the LRP or Novak GTB for ESC and i would go with the 6.5r motor of novak. Its a great setup for ones I seen at my local track run. Plenty of speed and very controllable. But I myself run a GTX and a 12x2 in my XXX-4 and I run with or better than they do.
__________________
ReVtech / Trinity / EAMotorsports

HotShot RC / Nexus Racing
Xray T2 '009 w/Exotek Chassis, BMI DB12rr, Tamiya F104X1
Team Durango DEX210
ChadRacing is offline   Reply With Quote
Old 08-25-2007, 09:50 PM   #11
Tech Master
 
memyselfandI's Avatar
 
Join Date: Nov 2004
Location: Australia
Posts: 1,381
Trader Rating: 1 (100%+)
Default

I run the lrp sphere TC spec and a 5.5 x11 and the thing is a rocketship and really controlable
__________________
Carisma Racing Australia
Modelflight.com.au
Team AKA
Ryper Hobbies
memyselfandI is offline   Reply With Quote
Old 08-25-2007, 09:55 PM   #12
Tech Champion
 
BuggyKing's Avatar
 
Join Date: Oct 2006
Location: Huntington Beach, Ca
Posts: 7,919
Trader Rating: 17 (100%+)
Default

In my XX4 I ran a 6.5R brushless which is around a 10 T. Something like that. You should be okay with a 13T. When you get used the car you can run a faster setup.
__________________
Our government is a #$%$ joke, from the head jester on down
RIP Mike M
BuggyKing is offline   Reply With Quote
Old 08-26-2007, 04:42 AM   #13
Tech Rookie
 
Join Date: Aug 2007
Location: old boy from 'the switch'. now live in Brisbane.
Posts: 24
Default

Quote:
Originally Posted by XXXCRRacer View Post
In my XX4 I ran a 6.5R brushless which is around a 10 T. Something like that. You should be okay with a 13T. When you get used the car you can run a faster setup.

Thanks for the advice fellas. Sounds like 11t to 13t brushless might be a good starting point with an lrp sphere feeding it. Your advice has been invaluable. All the best and I'm looking forward to hitting the track for the first time in 18 years. Good thing money is no issue now. Cheers.
__________________
Hotshot...Turbo Optima.....big gap...then....lazer ZX5/Cyclone d4
Marshy is offline   Reply With Quote
Old 08-26-2007, 06:48 AM   #14
Tech Master
 
Kings Kid's Avatar
 
Join Date: Sep 2005
Location: sw lower michigan
Posts: 1,681
Trader Rating: 35 (100%+)
Default

the fastest 4wd guy at our track runs a 10.5 t brushless. It's easier to drive, and because of this he makes very few mistakes. the next fastest ones run 6.5 & 7.5's. I started the year with a 7.5 and went back to a 10.5. I now turn more consistant laps and run in the top five. We run on a medium sized 1/10th track. On a larger track ( such as an 1/18th scale) a lower turn would work as well.
Kings Kid is offline   Reply With Quote
Old 08-27-2007, 10:30 AM   #15
Tech Elite
 
STEALTH's Avatar
 
Join Date: May 2003
Location: Manila & California
Posts: 3,019
Trader Rating: 21 (100%+)
Default

As far as BL brands go... just stick with NOVAK and their line of GTB and Velociti combinations!
STEALTH is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
RB ws7 pipe combination edgaras Nitro Off-Road 12 02-27-2008 04:30 AM
LRP Sphere Comp + Novak 4.5 - Good Combination? j000sh Electric On-Road 11 10-04-2006 06:26 PM
Best tyre addictive combination xize Electric On-Road 7 09-13-2006 03:25 PM
Spring and damper combination azmio Electric On-Road 0 08-29-2004 07:28 PM
What Tire & Insert Combination For Hot Asphalt FREAKAH Electric On-Road 22 08-26-2003 10:28 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 02:33 PM.


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