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Losi 1/10 TEN-SCTE ARR 4x4 Short Course Truck Thread

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Losi 1/10 TEN-SCTE ARR 4x4 Short Course Truck Thread

Old 10-01-2012, 09:29 AM
  #39691  
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Originally Posted by Grandturk View Post
I run 6500 Revtechs and the Activ8 from Novak with my Ballistic geared 15T and running timing advance on the speedo. No trouble making 10+ minutes.

Have you retarded the current limiter? I know that 100% will cook through batteries on the rx8. Try 60%
I believe the current limiter is set to 'off'
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Old 10-01-2012, 09:45 AM
  #39692  
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Originally Posted by weavty1 View Post
Running a Novak Ballistic 4.5 motor, Tekin RX8 esc, and 5600-6000mah lipos... No matter what gearing I use, I can't seem to find myself making 10-minute mains. I'm lucky to get 9-minutes.

Also, not running any advanced timing, drag brake, or even a HV steering servo... Everything else seems legit, otherwise. Oh and no overheating of either the motor or ESC. Just poor run-times.

Help?
how big is the track? Where are you geared? What esc settings? How much does your truck weigh?
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Old 10-01-2012, 09:56 AM
  #39693  
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Originally Posted by Randy_Pike View Post
how big is the track? Where are you geared? What esc settings? How much does your truck weigh?
The three tracks I've had an issue with - One is Flowood Mississippi (2012 Clash).. another is a little smaller, but more technical than that track.. and the other is a small indoor track, with about 16sec lap times...

I've geared it anywhere from 13t pinion to 15t pinion (with stock spur), and no luck with better run times.

And the ESC settings in my Hot Wire are:

Timing Advance: 0
Voltage Cutoff: 4S
Drive Mode: Dual Drive
Motor Direction: Normal
Throttle Profile: 3
Current Limit: Off
Throttle Minimum: 0
Push Control: Off
Drag Brake: Off
Brake Strength: 70
Reverse Speed: Off
Neutral Width: Min
Bran Minimum: 5

Truck is bone stock, as far as weight goes. So around 7.0 lbs, ready for the track.

Thanks Randy
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Old 10-01-2012, 10:05 AM
  #39694  
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Originally Posted by weavty1 View Post
The three tracks I've had an issue with - One is Flowood Mississippi (2012 Clash).. another is a little smaller, but more technical than that track.. and the other is a small indoor track, with about 16sec lap times...

I've geared it anywhere from 13t pinion to 15t pinion (with stock spur), and no luck with better run times.

And the ESC settings in my Hot Wire are:

Timing Advance: 0
Voltage Cutoff: 4SThis should be 2s
Drive Mode: Dual Drive
Motor Direction: Normal
Throttle Profile: 3
Current Limit: OffTry 70
Throttle Minimum: 0
Push Control: Off
Drag Brake: Off
Brake Strength: 70
Reverse Speed: Off
Neutral Width: Min
Bran Minimum: 5

Truck is bone stock, as far as weight goes. So around 7.0 lbs, ready for the track.

Thanks Randy
Changes in Red. The other issue is the weight. If your truck is 7lbs hitting the track you need to get rid of some of that weight. It really needs to be 6.5lbs or lower to get 10 on a 5500mah'ish pack.

The losi is heavy and this is good for somethings, run time is not one of them.

For most tracks go with a 14T. Unless it's tight point and shoot indoor tracks, then go 13T.

Unless the track has a long straight 180ft or more stay away from a 15T on the 4600.
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Old 10-01-2012, 10:13 AM
  #39695  
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Originally Posted by Randy_Pike View Post
Changes in Red. The other issue is the weight. If your truck is 7lbs hitting the track you need to get rid of some of that weight. It really needs to be 6.5lbs or lower to get 10 on a 5500mah'ish pack.

The losi is heavy and this is good for somethings, run time is not one of them.

For most tracks go with a 14T. Unless it's tight point and shoot indoor tracks, then go 13T.

Unless the track has a long straight 180ft or more stay away from a 15T on the 4600.
Damn! I meant to change that to 2S.. lol, it's actually on 2S, I just punched 4 on here, but forgot to fix my typo! lol..

I'll go weigh it in a few and let you know the exact weight, but wow... That's definitely no bueno.

*edit* It's 6.65 lbs.
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Old 10-01-2012, 11:37 AM
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Time to but the 'ol girl on a diet.
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Old 10-01-2012, 11:40 AM
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Originally Posted by Randy_Pike View Post
Time to but the 'ol girl on a diet.
Damn man.. lol, I have no idea how everyone else gets their SCTE's to run 10 minute mains?! El lame-o!

Either that, or it's this junk Novak motor.. lol
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Old 10-01-2012, 11:46 AM
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Originally Posted by weavty1 View Post
Damn man.. lol, I have no idea how everyone else gets their SCTE's to run 10 minute mains?! El lame-o!

Either that, or it's this junk Novak motor.. lol
Here is how most of us do it around here.

http://spcracing.com/index.php?productID=61
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Old 10-01-2012, 11:52 AM
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You should only be using about 400-450mA per minute. Go through your truck and make sure there isn't a bearing going out. Try borrowing another motor. Maybe yours is going out. How hot is it running? You could also try the going to the HT rotor in the 4.5. That will make the motor more efficient. You'll have to gear it up though to make up for the lost kv.
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Old 10-01-2012, 12:08 PM
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Originally Posted by cpt_RedBeard View Post
Here is how most of us do it around here.

http://spcracing.com/index.php?productID=61
Seem like a good practice pack! But at 30C rating, wouldn't you be piffing that pack with an awd truck?

When I run my CRC 5300 mAh 40c packs, my truck stutters when I punch it off the line.

That doesn't happen with my 65C~130C turnigy packs
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Old 10-01-2012, 12:15 PM
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Originally Posted by cpt_RedBeard View Post
Here is how most of us do it around here.

http://spcracing.com/index.php?productID=61
A 8400mAh 30C softpack ?
Does that have enough oomph to power the latest & greatest powermad motors like the Revtech, Tenshock & Hobbywing ?

Last edited by Pygmy; 10-01-2012 at 12:32 PM.
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Old 10-01-2012, 12:37 PM
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Yeah, I run at ROAR facilities, plus I don't trust softpack LiPo's anyway. So, thanks.. but no thanks

Plus, you shouldn't NEED a damn 8400 pack just to run a 10 minute main. That's ridiculous.
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Old 10-01-2012, 12:49 PM
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The guys are all correct though. Check for bad or sticky bearings. It doesn't take much to burn up some extra mah per minute on a track with one of these trucks.

If the motor is weak it will draw a lot more current than a good one.
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Old 10-01-2012, 12:57 PM
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Originally Posted by weavty1 View Post
Yeah, I run at ROAR facilities, plus I don't trust softpack LiPo's anyway. So, thanks.. but no thanks

Plus, you shouldn't NEED a damn 8400 pack just to run a 10 minute main. That's ridiculous.
http://www.venom-group.com/20C-2S-7-...category=19506

I have run 10 min back in the day. Stock SCTE (pre production) and a novak motor and 5000mah battery. I did not drive it hard though. Easy on easy off throttle and rolled through the corners. LOL
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Old 10-01-2012, 02:41 PM
  #39705  
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Hey guys im sure you heard this over and over again but i couldnt find the answer i was looking for. I would like to get an idea on gearing. I bought the rtr version and now i am going to upgrade motor and esc. I am going with the tekin RX8 esc and the Pro 4 4600KV motor. I am running the mip chassis so i am lighter than stock. I only race and its generally on a medium sized 1/8th outdoor track (but we shorten it for the short course trucks). I would like to know where to start with pinion size. Im fairly new to electrics so i hope this dosent sound too stupid. Im pretty sure the gears are 32pitch, correct me if im wrong. If some one could please give me an idea where to start as far as the pinion goes and if there is any certain brand pinion. Also is there any thing different i will have to do to go with the Pro 4 as i understand it is a 540 motor and the stock is a 550? Thank you.
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