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"targetingxmod" Losi Mini 8 4s Project

"targetingxmod" Losi Mini 8 4s Project

Old 01-25-2014, 09:21 AM
  #106  
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Originally Posted by Dr_T
Nice, good news!
I know the Neu should not be 100% but it seens it's 100% allright... the smoke i know... the smoke!

After 2 hours of this, continous run each 30 minutes....4packs in 2 days!
+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.


Project Pink Monster is finally finished!
LOSI Transmission holds on, and next upgrade will be the diff outdrives for the lighter/stronger ones, lol.

Meanwhile i will post more videos

Last edited by targetingxmod; 01-25-2014 at 10:09 AM.
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Old 01-25-2014, 02:19 PM
  #107  
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New quality video coming.... (show video, not run)

+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.

Last edited by targetingxmod; 01-25-2014 at 04:00 PM.
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Old 01-29-2014, 11:13 AM
  #108  
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Hi! Pink monster still running well? I just received this very detailed reply from Castle about adding capacitors to the MMP.

---------- Forwarded message ----------
From: **** <****@castlecreations.com>
Date: Wed, Jan 29, 2014 at 6:35 PM
Subject: RE: Adding power capacitor on Mamba Max Pro ESC?

Thank you for contacting Castle Creations Tech Support.

Be aware that any electrical motor will put out and pull as much power as
you ask it to. If you have a vehicle that weights more than 4 lbs and a
motor with a Kv of over 2000 the motor will draw significantly more than 150
amps regardless of its amp rating and will peak over 400 amps accelerating
from 0 mph. If the motor is not designed for 6s it will destroy itself and
the ESC and possibly the batteries running it at 6s. I don't know of any
motor designed for 10th scale or SCT weight that can handle 6s except for a
few Neu motors. Over-volting a motor will void the warranty on the ESC and
destroy electronics.

Caps in front of the ESC are used to prevent damage to the ESC from
increased ripple current when batteries wear out. They do not increase
performance and if they significantly lower ESC temperatures with new
batteries the batteries are incapable of delivering the current the motor is
drawing or there are high resistance plugs or a poor or cold solder joint on
one of the plugs
. In either case either the batteries need to be replaced
with larger/higher discharge batteries and/or the plugs if they are Traxxas
or Deans, the only two plugs we recommend, need to be resoldered or
replaced.

I am not sure if the spec of the caps you want to use is appropriate for use
on the input side of the ESC. The only caps to consider and ultra-low ESC
aluminum electrolytic or extremely expensive ultra-low ESC ceramic
capacitors not over 1000 uF. Usually, cap packs are not need in 10th and SCT
weight systems as good batteries (5,000 mah or larger, 30c or higher) are
fully capable of providing the power needed to run this weight system. 1/8th
scale weight systems are the low end of power requirements where caps start
to make sense but should never be used to try to make up for inadequate
batteries, only as insurance that the ESC won't be damaged when the
batteries internal resistance goes up and its c rating goes down when the
batteries start to wear out but before the degradation is easily noticeable.
Much of this can be avoided by using good batteries. The only batteries we
currently recommend are Hyperion and Thunder Power 5,000 mah, 45c.

If you want to add a cap pack your best bet is to use our cap pack, designed
specifically to help reduce ripple current on the battery side of the
circuit. Ripple current is the number one killer of high energy electric
power systems and the sole reason for increasing capacitance on the battery
side of the circuit. The cap pack is only shown as an accessory under our
1/5th scale system as this is the power level where a cap pack is worth
consideration.


-----Original Message-----
Sent: Tuesday, January 28, 2014 2:53 PM
To: [email protected]
Subject: Adding power capacitor on Mamba Max Pro ESC?

Hi, I'm planning on running a motor rated max 45 A continuous - 70 A peak on
6S lipo with the Mamba Max Pro ESC. Are there any advantages of adding a
power capacitor to the battery leads?

I was planning on adding a 50V 1000uF capacitor with 0.064 ohm impedance and 2.48 A ripple current, but I do not want to add more complexity and another failure mode if it does not have any significant benefits for the setup I am planning to run. Could you please provide some guidance in this matter?


---------------------------------------------

I've read on another forum that if a powercap solves ESC/motor issues, it might mean the caps in the ESC are toasted. Anyway, doesn't really matter as long as your pink monster is running happily, but I'd thought I'd share Castle's view for anyone looking for info on ESC caps

Cheers!
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Old 01-29-2014, 02:44 PM
  #109  
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Well guess i was using to much power for the 1800mah 70c ThunderPower batery!

Besides what brands says overkill for some project's is just "normal" and then we have to have patience and find knowlodge to overcome the red line and make it green line! I can say i acomplish that.

Either way it's working now... i made a marathon of 2 hours constant run.... and worked everytime! Transmission held up like nothing to it!

I was suprised of the 30minutes runtime of hardcore speed runs!

I guess no need to waste time now on sendind it back for repair! Maybe the MMP caps are toasted...but it's runing. Save the money and get a Busnell!

More videos in a near future!



Originally Posted by Dr_T
Hi! Pink monster still running well? I just received this very detailed reply from Castle about adding capacitors to the MMP.

---------- Forwarded message ----------
From: **** <****@castlecreations.com>
Date: Wed, Jan 29, 2014 at 6:35 PM
Subject: RE: Adding power capacitor on Mamba Max Pro ESC?

Thank you for contacting Castle Creations Tech Support.

Be aware that any electrical motor will put out and pull as much power as
you ask it to. If you have a vehicle that weights more than 4 lbs and a
motor with a Kv of over 2000 the motor will draw significantly more than 150
amps regardless of its amp rating and will peak over 400 amps accelerating
from 0 mph. If the motor is not designed for 6s it will destroy itself and
the ESC and possibly the batteries running it at 6s. I don't know of any
motor designed for 10th scale or SCT weight that can handle 6s except for a
few Neu motors. Over-volting a motor will void the warranty on the ESC and
destroy electronics.

Caps in front of the ESC are used to prevent damage to the ESC from
increased ripple current when batteries wear out. They do not increase
performance and if they significantly lower ESC temperatures with new
batteries the batteries are incapable of delivering the current the motor is
drawing or there are high resistance plugs or a poor or cold solder joint on
one of the plugs
. In either case either the batteries need to be replaced
with larger/higher discharge batteries and/or the plugs if they are Traxxas
or Deans, the only two plugs we recommend, need to be resoldered or
replaced.

I am not sure if the spec of the caps you want to use is appropriate for use
on the input side of the ESC. The only caps to consider and ultra-low ESC
aluminum electrolytic or extremely expensive ultra-low ESC ceramic
capacitors not over 1000 uF. Usually, cap packs are not need in 10th and SCT
weight systems as good batteries (5,000 mah or larger, 30c or higher) are
fully capable of providing the power needed to run this weight system. 1/8th
scale weight systems are the low end of power requirements where caps start
to make sense but should never be used to try to make up for inadequate
batteries, only as insurance that the ESC won't be damaged when the
batteries internal resistance goes up and its c rating goes down when the
batteries start to wear out but before the degradation is easily noticeable.
Much of this can be avoided by using good batteries. The only batteries we
currently recommend are Hyperion and Thunder Power 5,000 mah, 45c.

If you want to add a cap pack your best bet is to use our cap pack, designed
specifically to help reduce ripple current on the battery side of the
circuit. Ripple current is the number one killer of high energy electric
power systems and the sole reason for increasing capacitance on the battery
side of the circuit. The cap pack is only shown as an accessory under our
1/5th scale system as this is the power level where a cap pack is worth
consideration.


-----Original Message-----
Sent: Tuesday, January 28, 2014 2:53 PM
To: [email protected]
Subject: Adding power capacitor on Mamba Max Pro ESC?

Hi, I'm planning on running a motor rated max 45 A continuous - 70 A peak on
6S lipo with the Mamba Max Pro ESC. Are there any advantages of adding a
power capacitor to the battery leads?

I was planning on adding a 50V 1000uF capacitor with 0.064 ohm impedance and 2.48 A ripple current, but I do not want to add more complexity and another failure mode if it does not have any significant benefits for the setup I am planning to run. Could you please provide some guidance in this matter?


---------------------------------------------

I've read on another forum that if a powercap solves ESC/motor issues, it might mean the caps in the ESC are toasted. Anyway, doesn't really matter as long as your pink monster is running happily, but I'd thought I'd share Castle's view for anyone looking for info on ESC caps

Cheers!
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Old 02-03-2014, 06:10 AM
  #110  
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How does this drive on 4s, compared to your mini inferno on 4s? which is the better platform for high speed runs?
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Old 02-03-2014, 09:51 AM
  #111  
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Originally Posted by jameswalker
How does this drive on 4s, compared to your mini inferno on 4s? which is the better platform for high speed runs?
They are different! Kyosho Mini Inferno needs aftermakert transmission or the Nitro version Transmission to be safe on 4s and has a central diff, which is better for speed's!

Stock Losi mini 8 transmission handle fine 4s. There only problem is being a rear spur which make wheelies like mad on the 4s power.

Either way i only use them for constant speed runs. They will never bash!
So they both serve it's purpose (mine)

In the end i will say the Mini Inferno, cause it got a central diff, but out of the box it's a weaker car then Losi m8, and M8 is more capable of bash then the mini inferno..... but this small scales in my opinion only a good basher is the MERV (traxxas)

Last edited by targetingxmod; 02-03-2014 at 10:04 AM.
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Old 02-03-2014, 12:54 PM
  #112  
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Thats good to know, I am currently building up a mini inferno to play with on 4s for speed, but also on 2s for bashing. it currently has a 16t pinion but has far too much acceleration - more than the wheels can put down. I have ordered a 22t to see if thats any better. Looks like I will have to take a dremel to the chassis to cater for the larger pinion though!

which shop did you buy the diff drive cups for the 09?
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Old 02-03-2014, 02:07 PM
  #113  
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Originally Posted by jameswalker
Thats good to know, I am currently building up a mini inferno to play with on 4s for speed, but also on 2s for bashing. it currently has a 16t pinion but has far too much acceleration - more than the wheels can put down. I have ordered a 22t to see if thats any better. Looks like I will have to take a dremel to the chassis to cater for the larger pinion though!

which shop did you buy the diff drive cups for the 09?
Honestly it was 2 years ago.. i cant remember that! All i can say is that i searched the manual, and seacherd then for that part number all over the web till i find one! :P
That's what i remember. You could use the GPM that is still avaiable that is not a match for the nitro 09 diff... saddly! But the steel kyosho outdrives are far more durable then GPM

One word of advice... don't bash the mini inferno cause parts are rare to find nowdays!


-I think mine tooth is a 23T pinion... which take a lot of dremel on the motor mount and some on the chassis to to fit!


-These are some of the parts you asking!


-And that's the chassis i used on the MiniInferno4s.
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Old 03-24-2014, 07:10 AM
  #114  
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Wiring my MMP to the PC i realized it was in Crawler mode.... very very strange.... either way problems are fixed months ago and i can enjoy the Rc.

So do you seing the next video:
+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.

That's what i wanted since the begining! Stable, reliable and super super fast! :P I can say i achived it! And i still use the same tires since day one, except for the ones who blew up!

Last edited by targetingxmod; 03-24-2014 at 01:55 PM.
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Old 03-25-2014, 07:42 AM
  #115  
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Another video, now on asphalt!
+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.





-And later, in the calm quiet at home screwing the spur nut... i decided to try then the 45T spur on pic installed with a 31T pinion (not shown)

Wired a tornado Yeah Racing Fan to, close to the motor!
I can't wait to do some speed racing like those on the videos... i have faith the Neu motor can handle it just HOT at the end of batery pack!

Nervous right now.... next week i will tell how it goes! If it goes extreme hot i will reduce some teeth on pinion....

EDIT:

-31T pinion 45T Spur installed!

Last edited by targetingxmod; 03-25-2014 at 08:52 AM.
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Old 03-25-2014, 11:55 AM
  #116  
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Nice! Great job man!

By now you must realize I have a bit of a number fetish, so here you go: assuming 82mm OD tires, the 31/45 gearing yields a nominal (14,8V) no-load wheel speed of 193kph (120mph)!!! That's insane man . Awesome!
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Old 03-26-2014, 06:43 AM
  #117  
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Well it worked! Problem now is that the space i usually use is not enough to stretch it's legs...dam!

Neu take it like a champ, hot but not extremelly hot at the end of the pack by finger!!

I pause 3 to 5 seconds or so each minute!

A full pack of speed racing runs with the 1800mah 4s , usually take 25minutes to 30minutes but now on that gearing, the runtime was like reduce to 20minutes minutes! lol

This Mini8 already reach the limits of what normal custom work can do.


Later this year i will make videos with a bushnell!

Peace!

Last edited by targetingxmod; 03-26-2014 at 08:45 AM.
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Old 03-26-2014, 08:42 AM
  #118  
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Hum, after some testing with 2 packs i can conclude this:

The packs were run constant speeds runs with maybe 5 seconds of pause on each minute!


-After those vent holes...


-After 5 minutes...


-After 10 minutes...


-After 15 minutes....


-At the end of the pack.... 75ºC. Not bad for that insane gearing and insane constant speed racing runs.

This is it! The END for now...!

Now only a bushnell to prove what speed i am doing....

Bye!
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Old 03-26-2014, 08:21 PM
  #119  
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Wow your temps are really low for your speed runs.
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Old 08-20-2014, 04:25 PM
  #120  
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31T pinion
45T spur

Video:
+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
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