Brushless system for T4

[Hingepin]

I have been out of the hobby for some time and I want to get back in by getting a brushless system for my T4. This will be for racing the mod truck class at my track and also for just driving around my house and in the street. So far I'm looking at the novak ones and the mamba max. Any recommendations?

[AE_racer38]

All around setup.... my vote is for the Mamba Max 5700.

[Hingepin]

I'm also confused about the different motors, does the bigger number mean more power? If i put the most powerful one in my T4 would it even be controllable? would I have to worry about tearing up gears?

[Eli the rc guy]

the Higher the KV the faster it is.. Think of it as the brushed motors, just the other way around. It would be pretty fast.. YES, if you dont have a slipper you might have problems with gears.. I should know ;)

[Hingepin]

Ok so why shouldnt I just get the most powerful one? would it really be that insane?

[AE_racer38]

It would be harder to control for racing. For offroad, i'd run the Novak 7.5 or 6.5, or the Mamba Max 5700, or 4600. The other systems are more designed for touring car racing, and are just plain silly in an offroad car or truck.
I raced a Novak SS5800 with sintered rotor for a couple of years, and it was nearly as fast as a good 12 turn brushed. Now i race the Mamba 4600 and 5700, and they are good for offroad.

[Eli the rc guy]

I got the 5700 on my DI.. I'm scared of it.. I have yet to go full throttle for more then .000001 seconds O_O. With out a slipper i almost wore out my bevel gear in the back.. I'm using IB 4200 6 cells too.

[AE_racer38]

Use the castle link software to soften it up a bit!

[SpEEdyBL]

Ok so why shouldnt I just get the most powerful one? would it really be that insane?

I just want to make sure you're aware that the most powerful motor needs the most powerful batteries also. In fact, the battery should be first thing on your list on how to make power. The motor should be last on the list.

For example, if you want 60+ mph in 1/10 scale car without the system overheating in 5 minutes, you need a 4s pack lipo pack and a motor with less than half the kv that you would normally use with 2s.

[Hingepin]

I have maxamps 8000 lipos in it. They work in my brushless e-maxx so I think they should be good in a t4.

[alpinesky1]

I have maxamps 8000 lipos in it. They work in my brushless e-maxx so I think they should be good in a t4.

thats what i have, i also have the mamba max w/5700kv , trust me u dont need anything higher a 5700kv will beat my friend rc10gt2, and u can run the hole pack with overheating/thermaling... u can run 40mins stright:D....

the 6900 an 7700's can only last 15-20mins before the it thermals.... btw i if u try adjusting a 6900/7700kv to go slowwer it make it less efficint.....


trust me get the 5700kv its awsome, it can wheelie anytime i want even doing 30mph , the motors so powerfull 9 times out of 10 youll never need to go past 3/4ths or 7/8th gas on the race track, if anything ull end up adjusting the esc to make the 5700 slowwer for the track:teacher:

[Craps]

I have been out of the hobby for some time and I want to get back in by getting a brushless system for my T4. This will be for racing the mod truck class at my track and also for just driving around my house and in the street. So far I'm looking at the novak ones and the mamba max. Any recommendations?

You know me and I know you are planning on racing at the Grove or maybe we can get you out to the Farm with us this Saturday for a club race with the Pro Trucks.

Novak dominates the off road racing in the area and most of us use a 5.5 and adjust the radio accordingly, but you can get by with just a 7.5 or even an 8.5 for just racing at the Grove. Make sure you get the newer motor with the sintered rotor and use the Novak GTB esc.

You'll love the Farm and next weekend is the last time we can race electric there since next month is the ROAR Gas Truck Nats. They only race there once a month.

Good luck and see ya soon at the track!

[crazyjr]

All around setup.... my vote is for the Mamba Max 5700.

I tryed the 5700 in a T4, While impressive in power, its too much for racing (and bashing in my opinion), it also ran real hot in a T4 with a 18 tooth pinion. My current setup is a 4600 on 2S maxamps lipo, Much better for control but no lack of power, It as fast or faster than my GT2. My current gearing is 23/87, but the motor is a little hot(172) esc (120) batteries barely warm, so my plan is to go smaller on the spur and maybe bigger on the pinion (if needed) to bring down the motor temp a bit. It sounds a little funny, to go highrt on gearing to drop heat, but i think i need to. Funny thing is, its geared to high 30's to low mid 40's and will wheelie if i don't watch my trigger
Oh, those temps were after a half hour of constant driving

[Maxx42]

I use the mamba max esc with a lehner basic xl 3600 in my T4 also geared 23/87 for a smaller track that relies more on punch out of the corner over top end speed. I run it with a maxamps 2s 8000mah lipo pack. For race conditions, I last for over 40 min easy (never yet ran the pack down to lvc on the track). If I run it on pavement, I can get rolling wheelies at almost any speed (although at this gearing it only goes between 35 - 38 mph).

[crazyjr]

I use the mamba max esc with a lehner basic xl 3600 in my T4 also geared 23/87 for a smaller track that relies more on punch out of the corner over top end speed. I run it with a maxamps 2s 8000mah lipo pack. For race conditions, I last for over 40 min easy (never yet ran the pack down to lvc on the track). If I run it on pavement, I can get rolling wheelies at almost any speed (although at this gearing it only goes between 35 - 38 mph).

I got a 1200XL in a stampede with 4s right now and love it, I been thinking of trying a 2400XL in a ST with high gearing and 2s, just to see what would happen. People said i might not be able to gear the stampede right, but i thought 4 stroke and got it about right (31/87) I'm going to try 31/76 when i fix the rotor (magnet seperated, but not split) Got it JB Welded and setting right now and fix the diff, the internal gears are not working, thinking of a ball diff

[skylineTT]

my work bud has a mamba 6900 system and his T3 will do about 70MPH on lipos.

[Maxx42]

I got a 1200XL in a stampede with 4s right now and love it, I been thinking of trying a 2400XL in a ST with high gearing and 2s, just to see what would happen. People said i might not be able to gear the stampede right, but i thought 4 stroke and got it about right (31/87) I'm going to try 31/76 when i fix the rotor (magnet seperated, but not split) Got it JB Welded and setting right now and fix the diff, the internal gears are not working, thinking of a ball diff

Those basic XL motors are great - very smooth and very efficient. I dragraced my buddy's 3.3 jato with my T4 geared 23/78 (I think that was the gearing) on 3s lipo and was able to out accelerate him and have more top end speed. If I were to use a basic XL motor on 2s lipo for racing top level mod and brushless motors, I'd probably go with the 4200kv motor. I think that the lower rpm's that this motor would put out could be overcome with simply gearing the motor accordingly - it should have the torque to pull it off.

[crazyjr]

I think the XL2400 on 2s would be like the 1200XL on 4s, good efficiency with gearing options near limitless. Back on topic, if you are limited to roar approved, I would say 7.5 Novak, if not linited to ROAR, I'd pick 4600 mamba

[SpEEdyBL]

The novak motors are better than the mambas for racing. Better built, higher efficiency and smoother.

[Cain]

lots of opinions on that speedybl. I know a guy who racings in california with both systems and says the mamba is smoother than his novak GTB.

My personal experience, my mamba worked excellent. Reason I picked another up plus I don't have to use a fan.

[Craps]

We had a club race today at the Farm with 12 electric trucks and 3 gas trucks we allowed to race with us for 20 minutes. The race finished with Novak's 1-2-3, a gas truck in 4th and slack buttt with my Novak finshed 5th that all of us were 19 seconds apart on the same lap after 20 minutes. Great racing at the Farm!!!

[Craps]

lots of opinions on that speedybl. I know a guy who racings in california with both systems and says the mamba is smoother than his novak GTB.

My personal experience, my mamba worked excellent. Reason I picked another up plus I don't have to use a fan.

I took the fan off of my GTB and don't even use it! not needed with the sintered rotor upgrade!!! It was in the mid 90s today and worked for 20 minutes of racing with no problem.

Tip: Oil your brushless motor bearings every raceday before a long race like a 20 minute main to keep the motor cool and maximum effiency!!!

[Cain]

Thats good to hear then as I have heard not many good things about the fan in offroad

[Craps]

I have been out of the hobby for some time and I want to get back in by getting a brushless system for my T4. This will be for racing the mod truck class at my track and also for just driving around my house and in the street. So far I'm looking at the novak ones and the mamba max. Any recommendations?

Come on down to the Grove Friday or Saturday or up at NVR on Sunday (wife gone to beach=lot's of play time). I have 6 T-4 trucks with Novak GTBs 5.5/6.5/7.5 motors and I know I can find time for you to try one.

[crazyjr]

Come on down to the Grove Friday or Saturday or up at NVR on Sunday (wife gone to beach=lot's of play time). I have 6 T-4 trucks with Novak GTBs 5.5/6.5/7.5 motors and I know I can find time for you to try one.

Geeeeeez, I thought i was bad with 3 revo's:D

[kufman]

The novak motors are better than the mambas for racing. Better built, higher efficiency and smoother.

The higher efficiency I would have to argue with.

[SpEEdyBL]

Then how come people who have tested both get longer runtimes with the novak and the same power output? Please find one post in this forum where someone has overheated or thermaled a novak motor w/ the sintered rotor. I bet I can find at least 10 for the Mamba Max motors.

[crazyjr]

Then how come people who have tested both get longer runtimes with the novak and the same power output? Please find one post in this forum where someone has overheated or thermaled a novak motor w/ the sintered rotor. I bet I can find at least 10 for the Mamba Max motors.

I have never thermaled an MM when run in spec, My current racing setup in my T4 is a 4600 with 2s 8000mah maxamps lipo. Please don't think i hate Novak, I have run their esc's and recievers for over 10 years and currently have four ss5800's, one on loan to a friend, two used and sitting, with one of those having a sintered rotor (not tested yet) and one NIB for a rainy day. I just can't see a high kv motor being more efficient than a Low KV motor, I have run my 4600 for over 40 minutes ( no watch to time it but a friend used 4 tanks in a BB buggy while i run, 7 to 10 min a tank), no thermal or stopping till the cut-off hit. I admit i'm still a newb, only been in brushless for a year, but i read and researched for about 5 years before taking the plunge, I can't see how the 7.5 to 3.5 could be more efficient. 8.5 and up yes, Just can't see the lower turns doing it.

[alpinesky1]

Mamba max systems are higher efficiency.... Not Novak....

Sensorless systems are more effcient vs. a sensord system....

The reason novak gets more run time is only because the MM / sensorless systems make alot more power per KV (about twice the torque) an that meens a sensorless is drawing more Amps, and thats why its getting less run time....

Say u have a sensord system an the motor has 5700kv,
Now say u have a sensorless system an the motor has 5700kv

Say im running a Rc10T4
with a 2s2p 8000mah lipo and i have settup both systems to make the about the same power/watts/Hp say 250watts(by programing the esc's, an diffrent gearing).... the sensorless will run longer and even have more torque......

Now say i gear and program both systems to make as much horsepower as each can the sensorless will make way more speed , power/watts , an way more torque(the mamba max can wheelie at almost any speed from a stop to20 to about 35-40mph , while the novak can only really do it when ur under 10mph, again thats cus the mamba max make like twice the torque).....(now u will be useing way more amps & watts.....

btw
the sensord system that has say 5700kv an makes 200-450watts power an has about 80% efficiency.....

the sensorless system has say 5700kv an makes 200-800watts power an has about 90% efficiency.....


Now novak is a great system, i love them!
But a Mamba Max can make way more power...an can be programed too race on a offroad track, but then u can program it to BASH a make speed runs..... its also one strong esc, i use it in my brushless 10lb truggy 8ight T with a huge Neu 1515 1y 2200kv, with a 4s 8000mah lipo battery, its awsome an they overbuilt it, so a tiny 3lb 2s 6000-8000mahlipo T4 is nothing.....:)

[alpinesky1]

Come on down to the Grove Friday or Saturday or up at NVR on Sunday (wife gone to beach=lot's of play time). I have 6 T-4 trucks with Novak GTBs 5.5/6.5/7.5 motors and I know I can find time for you to try one.

:eek::eek::eek::eek::eek::eek::eek::eek::eek::
Dam....... Y not just get lucey number 7:D:D

u the man craps:cool::D;)

[SpEEdyBL]

Mamba max systems are higher efficiency.... Not Novak....

Sensorless systems are more effcient vs. a sensord system....

The reason novak gets more run time is only because the MM / sensorless systems make alot more power per KV (about twice the torque) an that meens a sensorless is drawing more Amps, and thats why its getting less run time....

Say u have a sensord system an the motor has 5700kv,
Now say u have a sensorless system an the motor has 5700kv

Say im running a Rc10T4
with a 2s2p 8000mah lipo and i have settup both systems to make the about the same power/watts/Hp say 250watts(by programing the esc's, an diffrent gearing).... the sensorless will run longer and even have more torque......

Now say i gear and program both systems to make as much horsepower as each can the sensorless will make way more speed , power/watts , an way more torque(the mamba max can wheelie at almost any speed from a stop to20 to about 35-40mph , while the novak can only really do it when ur under 10mph, again thats cus the mamba max make like twice the torque).....(now u will be useing way more amps & watts.....

btw
the sensord system that has say 5700kv an makes 200-450watts power an has about 80% efficiency.....

the sensorless system has say 5700kv an makes 200-800watts power an has about 90% efficiency.....


Now novak is a great system, i love them!
But a Mamba Max can make way more power...an can be programed too race on a offroad track, but then u can program it to BASH a make speed runs..... its also one strong esc, i use it in my brushless 10lb truggy 8ight T with a huge Neu 1515 1y 2200kv, with a 4s 8000mah lipo battery, its awsome an they overbuilt it, so a tiny 3lb 2s 6000-8000mahlipo T4 is nothing.....:)

What novak system are you refering to? Just because both motors have the same kv doesn't mean it's a fair comparison. A fair comparison is when both motors draw the same amount of current, which means under ideal conditions both motors will put out the same power whether or not one uses more torque and the other more rpm. For any of the MM motors, there is a novak motor that has enough kv to make up for the difference in torque. And as far as I am concered, all of the velociti winds can run all day long without overheating.

[ElectricThunder]

Mamba max systems are higher efficiency.... Not Novak....

Sensorless systems are more effcient vs. a sensord system....

The reason novak gets more run time is only because the MM / sensorless systems make alot more power per KV (about twice the torque) an that meens a sensorless is drawing more Amps, and thats why its getting less run time....

Say u have a sensord system an the motor has 5700kv,
Now say u have a sensorless system an the motor has 5700kv

Say im running a Rc10T4
with a 2s2p 8000mah lipo and i have settup both systems to make the about the same power/watts/Hp say 250watts(by programing the esc's, an diffrent gearing).... the sensorless will run longer and even have more torque......

Now say i gear and program both systems to make as much horsepower as each can the sensorless will make way more speed , power/watts , an way more torque(the mamba max can wheelie at almost any speed from a stop to20 to about 35-40mph , while the novak can only really do it when ur under 10mph, again thats cus the mamba max make like twice the torque).....(now u will be useing way more amps & watts.....

btw
the sensord system that has say 5700kv an makes 200-450watts power an has about 80% efficiency.....

the sensorless system has say 5700kv an makes 200-800watts power an has about 90% efficiency.....


Now novak is a great system, i love them!
But a Mamba Max can make way more power...an can be programed too race on a offroad track, but then u can program it to BASH a make speed runs..... its also one strong esc, i use it in my brushless 10lb truggy 8ight T with a huge Neu 1515 1y 2200kv, with a 4s 8000mah lipo battery, its awsome an they overbuilt it, so a tiny 3lb 2s 6000-8000mahlipo T4 is nothing.....:)

Your numbers are way off for efficiency my friend (while Novak doesn't have efficiency numbers out, other manufacturers like LRP and the GM Evo motors/Orion motors spec around 87-89% efficiency for their 3.5 turn motors when used with the sintered rotors; those are their fastest motors, and have been reportedly faster than the MM7700 and I have not heard about any heat problems with such motors, whereas the mambas I have). I would also like to point out that Patrick DelCastillo himself has posted on RC groups (a long time ago) that the most efficient mamba motor is the 4600, and that was about 89% efficient; maybe 92% max at that. The 5700 isn't in the 90% range...

I have first hand experience with Novak motors, a 5700, and a feigao 540 8s (the 8s is a friggin' heat pump.. heh!). With the sintered rotor, my 8.5 turn Novak runs cooler at the same gearing with the same tires in the same truck with the same batteries than my MM5700 did. To add insult to injury, it's running about 50 degrees cooler! (The mamba would hit around 170 to 180 on an average summer day of around 90-95F ambient temperature, whereas my 8.5 turn Novak hasn't even broken the 130F barrier yet, and I do the SAME kind of driving and run the same setup on the same terrain during the same time of year).

Efficiency has nothing to do with whether the motor is sensored or sensorless, nor does the power output of the motor. The motor design and build quality affects those figures more than anything. Just because you have three little hall sensors in the back of the motor doesn't automatically mean power output will suffer (I can't see why it would really).


A mamba system has more potential power output in stock form simply because it can run higher voltage (and if you choose the right motor, efficiency can be enhanced greatly as well, and thus will affect your final power output). But guess what...with an HV ESC, I can run my 8.5 turn Novak on 12 cells (which means the power ratings that Novak gives go out the window; those ratings are most likely on six cells, and the lower the wind, the higher the wattage because more current is being drawn while voltage is remaining around 6 or so volts under load with terrific NiMHs, or probably 7 volts on lipos). Manufacturers don't rate their systems the same anyways, so unless you can get numbers for both motors from an independant lab, it's tough to compare the two accurately from JUST numbers. I've run both on 6 cells, and have come to the conclusion that the Novak's running cooler has to be due to its higher efficiency and consequently better build quality.

But ya know, I did run the 8.5 turn in a Rustler with 12 GP3300s and the stock BONDED rotor. The motor hit 170 after about 10 minutes of blasting up and down the street and pulling wheelies on the sidewalk (where it could get traction). I'm awaiting some time to rewire my HV ESC so I can use both my IB packs and do a 12 cell run with the same motor, but which now has a sintered rotor. My 5700 would hit that temperature on 6 cells after a little bit longer doing the same thing geared properly.

You're comparing two COMPLETELY DIFFERENT designs. The mamba motors have slightly larger rotors, which is certainly a factor in how much torque is produced. There's a few differences which I'm sure affects motor performance drastically (hell....they're two completely different wind types!).

Speedy also makes a good point about Kv and amp draw and all sorts of other things that fall into place when you consider the design of a motor.

Don't get me wrong, my MM5700 is a beast, but it just gets too hot for me to run it reliably and I can't justify whatever power it is putting out to run it that hot (which leads me to the conclusion that the Novak motors must be more efficient given that the Novak motors spin faster RPMs on average in a 6 cell setup, and are also of better build quality). If I can have the same performance but a cooler setup (IE- more reliability and peace of mind for me), then heck, I'm going with the cooler setup.

That's my two bucks.

[alpinesky1]

i was just givving a exsample, i agree on running 6cells the mambas motor gets hot but , if u put a 2s 7v lipo the mamba doesnt get hot.... when getting into brushless the battery is key....

like u said too the novak motors have a smaller rotor and that makes them pull less amps.....

i read somewhere sensorless esc's are better then sensord esc's .... something about the computing capasity being faster....

in 2-3 months im going to get a egull tree data accusion for my 8ight T, ill hook up a mamba max 5700 system an a novak 4.5/6.5 to mt rc10t3 an then ill post them up, that way we have real wrold data:)

[crazyjr]

Electricthunder and Alpinsky1, one thing you guys didn't think about is, with identical setups the 5700 is at a disadvantage. My experience with mamba maxxes, is that they like tall gearing. I got a ss5800 that had a velocity rotor in it, Before it needed 15 to 17 to run right, It never got real hot, but above 17 it would get sluggish. With the velocity rotor, it liked 18 to 20. With my mamba max 4600, it likes real tall gearing or the motor gets hot. My current mamba setup is 4600 motor 23/84 and 2s lipo, the temps are 170 motor, 120 esc and batteries are barely noticable over ambient (at time was 95*outside). I admit thats not a good comparison, I have not tryed the sintered rotor, or done much with a 5700 other than bust up my truck, but I think both run in their sweetspots, will be comparable in efficiency. All my tests were done in a T4 in track practice and general bashing conditions

[alpinesky1]

yeah,the mamba motors like to be geared high....

both systems have there pros & cons, novak made there motors/esc for racing 1/10th scales, the mamba max systems are more fore bashing an beating the **** out of them, there good for racing u just tame them down by reprograming them, sensorless is still outlawed in some classes..... but ur local track useuly lets u race them....

[ElectricThunder]

Electricthunder and Alpinsky1, one thing you guys didn't think about is, with identical setups the 5700 is at a disadvantage. My experience with mamba maxxes, is that they like tall gearing. I got a ss5800 that had a velocity rotor in it, Before it needed 15 to 17 to run right, It never got real hot, but above 17 it would get sluggish. With the velocity rotor, it liked 18 to 20. With my mamba max 4600, it likes real tall gearing or the motor gets hot. My current mamba setup is 4600 motor 23/84 and 2s lipo, the temps are 170 motor, 120 esc and batteries are barely noticable over ambient (at time was 95*outside). I admit thats not a good comparison, I have not tryed the sintered rotor, or done much with a 5700 other than bust up my truck, but I think both run in their sweetspots, will be comparable in efficiency. All my tests were done in a T4 in track practice and general bashing conditions

My 5700 would get hot on any gearing, which was why I switched it over to my TT-01; it fairs a little better there (runs at around 150F now geared 21/61; I need to plop on my 22 tooth pinion because it seems undergeared). The 4600 is a stump puller. It has a larger rotor than the 5800 (kv unloaded is actually 5000 for this motor according to Novak), and a lower Kv, so its Kt is most likely going to be higher (and makes sense that it would run cooler at the gearing you're running). My Novak motor runs consistently cooler than the Mamba with each motor geared in their sweet spot in the same truck though. I wish I had a 7.5 velociti with a sintered rotor to make the comparison more fair though (since the 5800's Kv is now listed at around 5000, instead of the 5800 that it used to be back in the day....yeah, I don't get that myself). I'd guess the 7.5 would still run far cooler.

Alpine- The Novak needs to draw MORE current to create the same amount of torque under the same load as the Mamba if its Kt is lower. That just adds to my theory that the Novaks are far more efficient. The flip side of that theory is that the Novak may, in fact, draw less current despite a lower Kt because it is more efficient and not as much energy is wasted as heat (so it doesn't pull as much current to make up for energy lost that it actually needs to create torque).

My point still stands; I think the Novaks are more efficient with their sintered rotors, and with rinky dink 6 cell limit aside (aside question: who wants to find out what a GTB's voltage limit REALLY is?), I'm sure they could push out some sick wattage. (It's raining today, so no 12 cell run....hmph)

[majikmike]

I just got a T4 yesterday and I threw in my MM7700 from my rusty and it really hauls and I only used duratrax 4200 6cells. If you go with Mambas stick with the 5700 or the 7700 preferably the 5700. It is more versital when it comes to batteris. The mambas are about the most versital but require monitoring because they are sensorless. The only other 2 brands that I really like are the Novak systems and the LRP systems. All 3 of those systems are really good, you won't be disappointed with any of them.

[crazyjr]

ET, Mine run hot as well, thats why i went to the 4600. It still runs a bit hot, but going by the esc and battery i think i'm undergeared. the motor runs 170 after about 30 minutes, the esc is 120 for the same time and the batteries were barely above ambient (95*+ that day)

[ElectricThunder]

ET, Mine run hot as well, thats why i went to the 4600. It still runs a bit hot, but going by the esc and battery i think i'm undergeared. the motor runs 170 after about 30 minutes, the esc is 120 for the same time and the batteries were barely above ambient (95*+ that day)

170F is still "a wee bit too hot" in my book (I'm paranoid when it comes to heat and electronics), but after 30 minutes that's still not too shabby considering outside temperatures (it's about 95F+ down here too; my car is like a convection oven on wheels- friggin' hatchbacks...). I regret getting the 5700 (I wish I got the 4600 now that I look back on it). And I also regret getting the sintered rotor when novak just announced their larger diameter sintered rotor.....D'oh!!!:mad::roll2:

My 5700 hit a max of 195F geared 20/87 in a Rustler with Road Rage tires on a warm Spring day (so around 90F +/- 3 degrees). After that, I said screw it. The ESC with a little fan on it was no more than 110F, and the batteries (IB4200WCs) were around 125F; this was about a 15 minute run of plain crazy driving.

[chilledoutuk]

ET do you have any active cooling on the mamba.
I am running my c40 8s on 3s A123 and with a fan the motor stays nice a cool.

The hacker C40 braking issue people talk about is not really noticeable to me but then I do drive a bit digitally on the throttle.

I am still waiting on a plett extreme which i will also try on 3s1p a123 will be interesting to see how hot it gets.

My cm36 7700 runs like 68 celcius in a completely sealed 4wd cat 3000 buggy with Body on 2s2p a123.

[ElectricThunder]

ET do you have any active cooling on the mamba.
I am running my c40 8s on 3s A123 and with a fan the motor stays nice a cool.

The hacker C40 braking issue people talk about is not really noticeable to me but then I do drive a bit digitally on the throttle.

I am still waiting on a plett extreme which i will also try on 3s1p a123 will be interesting to see how hot it gets.

My cm36 7700 runs like 68 celcius in a completely sealed 4wd cat 3000 buggy with Body on 2s2p a123.

I was running an integy heatsink at one point, which did have a fan on it, but the fan just wouldn't blow enough air so the heatsink always got pretty toasty. I need a better fan (like what's on the GTB); that'd probably help my heat problems some.

I still have a few options left to get everything to run MUCH cooler, but I just haven't had the time or money to go about acquiring these items (FLM tranny, higher CFM 5v fan, another heatsink with more surface area than the crappy integy one I have, etc.). The FLM tranny is supposed to help A LOT with motor temperatures (since the whole thing acts as a heatsink). It may be a wise investment, and I do have some "extra" money coming up in my financial forecast. The question is if I have the time now....(2 weeks from this wednesday I'll be up at college; 200+ miles from my RCs).

[Craps]

There is a very long Mamba Max Fatory help thread for those Mamba problems! Hingepin just wanted to know what the best system was and you guys are proving the point about the headaches with the Mamba!

Keep it Simple!
Novak is for racing!
Mamba is for bashing!

[lil_general_lee]

I'm running the LRP 4.5 sintered set up with Sphere Competition 2007 in my T4. Plenty of power and just as fast as the 1/8ths down the straight. Geared 17/87 and everything stays cool. My only gripe is that I get a little cogging at low partial throttle when your barely on power rolling a slow corner which is extremely annoying. I've heard similar stories with the Novak GTB system.

RJ