View Full Version : Novak Velociti 4.5R brushless motor "wicked fast!"
PeterV
01-19-2006, 08:18 PM
http://jonchappell.com/velociti45.jpg
Doggone it, I could swear I emailed the press release home, but the only thing in my in-box is spam (cheap Viagra AND a hot stock tip...awright!). I can tell you that the ribbed can is new, and helps cool the motor while trimming a few grams. The new-style solder tabs are easy to spot as well, and will give us more mounting options for the power leads. "4.5R" refers to the motors four and a half turns, and the "R" has gotta stand for racin', right? More tomorrow...
www.teamnovak.com
Brace yourselves...Novak's newest Velociti brushless motor is fast. Wicked fast. The new 4 1/2-turn sensored brushless motor is Novak's fastest motor to date. Designed for racing, the Velociti 4.5R is ideal for competition touring cars. Like Novak's other Velociti-series motors, the Velociti 4.5R is compatible with the GTB Racing Programmable Brushless/Brush ESC and meets all ROAR specifications.
The Velociti 4.5R will begin shipping end of January. More more details next week!
Mr. Schumacher
01-19-2006, 08:24 PM
What the ....? 4.5 turns??? I want one!!! :eek: The brushless motor war seems endless but my wallet is not bottomless... :(
chilly4kc
01-19-2006, 08:55 PM
How low can you go! :)
ElectricThunder
01-19-2006, 08:58 PM
How low can you go! :)
1.5 :D
Alrighty then! So....where's the 3.5, 2.5, and 1.5 then?:D;) Novak's going to have to switch to a new design or go coreless or something when they run out of turns... :eek:
WheelNut
01-19-2006, 11:35 PM
4.5 with the GTB, lol yeah right. Mabye with 4-10 fans attached!
AudiTT-Quattro
01-20-2006, 12:40 AM
Novak stole my ribbed can idea. Nah, actually I recommended it to them after I milled out my 5800 for more surface area. Not sure if I had any influence though but I expect that royalty cheque to be in the mail soon. LOL. JK.
Pretty sweet, 4.5 turn...
Monkeyman95128
01-20-2006, 01:11 AM
Gosh darn it i just bought the 5.5, so does this one work with the gtb without like any mods?
TimisTim
01-20-2006, 02:01 AM
Team this up with the Orion Lipo and it will be a great racing system.
The 5.5 would pull spikes of 100amps, so how many is this thing going to take? Batteries aren't going to know what hit em.
jocktheglide165
01-20-2006, 02:56 AM
dude thats freakin awesome man man I love novak now please concentrate on the HV maxx how about HV-maxx velocity????? :-)
GroundPounder30
01-20-2006, 08:32 AM
4.5 with the GTB, lol yeah right. Mabye with 4-10 fans attached!
What do you mean, I run my GTB with my 5.5, with NO heat issues, and a fan with half the fins broken off. I hardly think a 4.5 is going to suddenly send it in to thermal shutdown.
ducklake1
01-20-2006, 09:07 AM
So, can you put 2 of these in the e-maxx? :)
synapse75
01-20-2006, 10:39 AM
So, can you put 2 of these in the e-maxx? :)
can you parrallel brushless motors?
losi4life0007
01-20-2006, 12:15 PM
I run my 5.5 with no fan and the Orion Lipo. It's wicked fast and I have had not heat issues. When I'm done running the heat sink is a little warm but thats what its there for to disapate heat.
AudiTT-Quattro
01-20-2006, 01:51 PM
can you parrallel brushless motors?
No, especially not with sensored systems.
wyattburp
01-20-2006, 02:09 PM
No, especially not with sensored systems.
The 'No' part makes sense to me, but the rest of your reply insinuiates that sensorless systems are more flexible and the possibility of running them in parallel is greater...Is that what you meant, or was is just a cheap shot at sensored systems? :)
No problem on running dual brushless (sensor or no sensor)--just run dual controllers. It's been done plenty of times.
-Rob
synapse75
01-20-2006, 04:19 PM
No problem on running dual brushless (sensor or no sensor)--just run dual controllers. It's been done plenty of times.
-Rob
Running 14+V to one ESC is a lot faster than running 7-8V to two ESCs.
At the local dirt track the brushless 4wd class turned faster lap times than any other class.
jocktheglide165
01-20-2006, 05:12 PM
how you gonna solder the wires to the tab thingsy?
ElectricThunder
01-20-2006, 11:34 PM
how you gonna solder the wires to the tab thingsy?
They're metal tabs. Tin them, tin the wire, heat 'em up, cool 'em off, and voila, you have motor wires.:D
TimisTim
01-21-2006, 12:00 AM
If you do it right then you will only NEED one system. As was said......more voltage through one system will be faster than the same volts through two.
And everyone knows the fastest brushless system out there is the Chuck Norris. :p
WheelNut
01-21-2006, 12:36 AM
The GTB has heat issues in lots of cars, that why it comes with the fan, lol! In my B4 the thing just cooked, until I cut some holes in the body for cooling. In something like carpet touring car the ESC gets taxed alot harder, and without a lot more airflow. Who knows mabye the esc actually can handle it, at least the LRP sphere competition should be able to handle it (if it ever comes out).
skylineTT
01-21-2006, 06:32 PM
I want this beast...stampede with maxx tires and rims..will it go crazy fast still? i should believe sooooo!
ElectricThunder
01-22-2006, 12:24 AM
And everyone knows the fastest brushless system out there is the Chuck Norris. :p
Correction, his chest hairs are the fastest. One hair has the same amount of energy as that released in the big bang. Therefore, his chest hair can produce an infinite amount of watts.:D
Skyline- This motor in a pede with emaxx tires/wheels will not be a good combo. This motor will be very revvy, and if you were to use it in this setup, you'd need to gear at something like 12/90 or even numerically higher (smaller on the pinion or larger on the spur). If you were to run stock pede tires and wheels, with a higher FDR, you may be able to get away with it. But this motor is designed for 1/10 TC (although it could probably be used in 1/10 ST classes or even 4wd classes, but those may be pushing it, and it may be just too powerful).
Freedom
01-22-2006, 12:31 AM
Chuck Norris's chest hairs omg! LOL :D
jocktheglide165
01-22-2006, 12:59 AM
Correction, his chest hairs are the fastest. One hair has the same amount of energy as that released in the big bang. Therefore, his chest hair can produce an infinite amount of watts.:D
Skyline- This motor in a pede with emaxx tires/wheels will not be a good combo. This motor will be very revvy, and if you were to use it in this setup, you'd need to gear at something like 12/90 or even numerically higher (smaller on the pinion or larger on the spur). If you were to run stock pede tires and wheels, with a higher FDR, you may be able to get away with it. But this motor is designed for 1/10 TC (although it could probably be used in 1/10 ST classes or even 4wd classes, but those may be pushing it, and it may be just too powerful).
dont forget bikes....
ElectricThunder
01-22-2006, 02:25 AM
dont forget bikes....
The bike will be so far out of sight at 3/4 throttle for only a few seconds... That or you'd just flip it every time...:D
AudiTT-Quattro
01-22-2006, 03:12 AM
Speaking about Novak, where's Charlie on the forums these days? I know he was at the Novak race, so he's still alive...
dallasv8
01-22-2006, 03:21 AM
i run a 12/91 combo with a 10x2 in my stampede,i dont have the maxx sized wheels but i run ho bao 1/10 nitro truck tyres, with that combo its an absolute wheelie/powerehouse.biggest spur that will fit without rubbing on the standard driveshafts is a 93 tooth.
TimisTim
01-22-2006, 04:34 AM
The point is that this motor is not for ST's (ok it should do well in a purebred graphite race truck like a losi or AE). The lower turn motors dont have the grunt off the line and take way to many amps to move a large vehicle at speed. My 8T pulls wheelies at 1/4 thottle rolling speed in my xxx-t, but my 7T only did them from a standstill. I've heard the 6T's are worthless (Im talking about Feigao motors) for any class whether it be TC or ST or even buggies.
BobNovak
01-23-2006, 07:36 PM
The GTB has heat issues in lots of cars, that why it comes with the fan, lol! In my B4 the thing just cooked, until I cut some holes in the body for cooling. In something like carpet touring car the ESC gets taxed alot harder, and without a lot more airflow. Who knows mabye the esc actually can handle it, at least the LRP sphere competition should be able to handle it (if it ever comes out).
We would not release a motor that would not work with the existing GTB. The GTB still has lower RDS-on than does the LRP Sphere competition and heat is directly propotional to RDS-on.
Bob Novak
BobNovak
01-23-2006, 08:09 PM
The point is that this motor is not for ST's (ok it should do well in a purebred graphite race truck like a losi or AE). The lower turn motors dont have the grunt off the line and take way to many amps to move a large vehicle at speed. My 8T pulls wheelies at 1/4 thottle rolling speed in my xxx-t, but my 7T only did them from a standstill. I've heard the 6T's are worthless (Im talking about Feigao motors) for any class whether it be TC or ST or even buggies.
I don't know about Feigao motors but I do know that the lower the turn Novak or Reedy/LRP sensored brushless motors the more torque (or grunt as you call out) you get out. Kt (torque constant) is proportional to current and the lower the turns the more current the motor will pull. This is true weather the motor is brushless (sensored or sensorless) or brushed. What you might be seeing in the sensorless systems is that the lower turn motors produce less back EMF voltage and they take longer to sync themselves with the speed control and you loose the instantaneous torque that should be there. This is one problem that sensored systems don't have.
Bob Novak
schenck77
01-23-2006, 08:12 PM
good to know that it should be cooler then even the lrp comp. Now if you would just add a cut off for lipo's to the gtb's I would be all set. Well that and a sensor wire that can be replaced on the motor like the lrp. (just had to send in my motor do to the wire, and it took 4 weeks. Would of been nice to just buy the wire and do it myself)
2fast2slow
01-23-2006, 08:32 PM
I hope that is a new Neo motor that puts out like 10,000kv now
WheelNut
01-25-2006, 07:45 PM
Bob N- Did LRP send you one of their Sphere competition speed controls before its been released? Seems like a pretty strange thing to do. The regular sphere is of course obviously is not as powerful as the GTB, but according to what LRP has released about the Sphere comp. it should be the most powerful sensored brushless car ESC avaliable yet. Oh well, I'm sure the GTB will handle it this 4.5, I just wonder if people will have problems with thermalling the speed control.
skylineTT
01-25-2006, 10:07 PM
soo..with my pede running maxx tires and wheels..what GTB system would be best? or any other brushless system? im not lookin to spend 500 bucks on a system but what would do best?
skylineTT
01-25-2006, 10:21 PM
oh so the 4.5 will push the pede better?
SS Pede
01-25-2006, 10:53 PM
oh so the 4.5 will push the pede better?
Well it's a more powerful/faster motor than the other GTB's, so it should push the Pede faster. It's powerband may be different from the other motors, but yeah it'll make the Pede go fast. :)
SquirrelNutz
01-26-2006, 12:16 AM
im not a huge fan of the sensored and love my lehners..... but 4.5!!!! OMG!!!
Im a speed freak at heart who has been going through the pains of learning lessons of the damages of speed. I used to be able to say "who cares about the toasted diffs and trannies!!!!". Now that Im up to 8 (I have been in the hobby for years and my rule of thumb has always been no more than 2 so that I can have a back up unless I was racing) I dont have the cash to spread the love on all. Ive also been appreciating the balance of speed AND HP as of late.
My only concern on this craze to go low is do people really understand that the excessive speed and heat does do alot of damage!!! Also, with 4.5 turns, how many applications would this really have a viable option for anything OTHER than onroad? would a ST (say a t4 or a XXXT) have the umph to propel itself over grass and dirt? maybe with a kicking start or alot of cells!!!
I think that this is cool and I really do appreciate this motor as a work of art from a very respected company. I just think that anything below 6t will be lost in application unless it is strictly onroad.
Anyone agree or dissagree?
WheelNut
01-26-2006, 03:32 AM
I completely agree. The 4.5R, and the 5.5R are most definately onroad motors. After all though the electric racing market is alot bigger than the electric offroad racing market. The 5.5R may be useful in a 4wd buggy, but for offroad thats about it.
losi4life0007
01-26-2006, 01:13 PM
Not true I use a 5.5 in a B4 with a lipo even, and it is completely controlable on the track. The track I race at isn't even blue groove and theres still not a traction problem. The first 1/3 pull of the trigger it feels a lot like a stock motor to me, then after the more you pull the more you get. Very linear feel, not jumpy and choppy like other mods I have raced. Plus it ticks off the modified guys cause I can smoke them at any place on the track. No overheating issues and no run time problems. Simple a fantasic system in my view. Some people will think it is too fast, but my other car is a 1/8th buggy so I am use to speed. If you think it will be to fast then don't buy it, but if your used to speed it is very linear and a great motor and ESC.
chilly4kc
01-26-2006, 10:37 PM
Novak has finally posted some specs about this motor. View it with this link (http://www.teamnovak.com/products/brushless/velociti4.5/index.html).
lonepalm4
01-27-2006, 03:41 AM
Great news. This means that the reedy 4.5 should be on the shelves soon, and that a 3.5 is not far off. I'd love to have a 3.5 turn for my 1/12 scale. That would be so nice. can't we just get the 3.5 now, and avoid the 6 month delay?
I'm curious how much faster the 4.5 is then the 5.5. Is it like 20% faster, or only a measly 10%? Either way, I still want one.
chills73
01-27-2006, 07:23 PM
I have a 6.5 in my fireblade (2wd), and it's great
i do not wish more power :)
this 4.5 is absolutely uncontrollable in my car :eek:
jocktheglide165
01-28-2006, 07:51 AM
3.5 man this two companies rock reedy and novak competing and in the end us consumer wins with so many choices.
rc addict
01-28-2006, 01:08 PM
when refused a mcmuffin at mcdonalds because it was past breakfast hours, chuck norris roundhouse kicked a mcdonalds so hard it turned into a kfc.
The flash and superman are having a race to the end of the galaxy. Who wins? Chuck Norris.
Chuck Norris once burned 1500 calories by looking at himself in the mirror
GT Freak
01-28-2006, 02:00 PM
id like to see a brushless thats =2 a 19t motor....that would be fun! :)
jimsar57
01-28-2006, 03:17 PM
Man a 4.5....I wonder how fast that will make my TC4 go?
Does anyone know.
cart213
01-28-2006, 04:14 PM
I completely agree. The 4.5R, and the 5.5R are most definately onroad motors. After all though the electric racing market is alot bigger than the electric offroad racing market. The 5.5R may be useful in a 4wd buggy, but for offroad thats about it.
Not true. I used to run a GTB5.5 (sold to jocktheglide165) in my pede with M2K tires, and at a stock gearing of 87/18, I could get rolling wheelies at about 10mph, and the top speed had to be about 40mph. The esc was barely warm and the motor was very warm but I could still hold my finger on it forever. The battery (IB3800) did get hot, though, due to the extreme amp draw of the motor.
The 4.5 might be too much for a pede, though. Not because of the motor/esc overheating, but because it might pull enough amps to toast the battery.
cart213
01-28-2006, 04:15 PM
dont forget bikes....
You're liking that 5.5, huh? :)
AudiTT-Quattro
01-28-2006, 06:23 PM
Not true. I used to run a GTB5.5 (sold to jocktheglide165) in my pede with M2K tires, and at a stock gearing of 87/18, I could get rolling wheelies at about 10mph, and the top speed had to be about 40mph. The esc was barely warm and the motor was very warm but I could still hold my finger on it forever. The battery (IB3800) did get hot, though, due to the extreme amp draw of the motor.
The 4.5 might be too much for a pede, though. Not because of the motor/esc overheating, but because it might pull enough amps to toast the battery.
I believe they mean that the 4.5 is not practical for off-road racing applications. You'll get similar times on the track with a higher turn motor with off-road.
WheelNut
01-29-2006, 04:36 AM
Yeah I was just talking about for racing. Bashing is a completely different application all together, the way the motor is loaded is really very different when your just trashing your truck around.
cart213
01-29-2006, 08:31 AM
My bad. :)
azmio
01-29-2006, 10:20 AM
I don't know about Feigao motors but I do know that the lower the turn Novak or Reedy/LRP sensored brushless motors the more torque (or grunt as you call out) you get out. Kt (torque constant) is proportional to current and the lower the turns the more current the motor will pull. This is true weather the motor is brushless (sensored or sensorless) or brushed. What you might be seeing in the sensorless systems is that the lower turn motors produce less back EMF voltage and they take longer to sync themselves with the speed control and you loose the instantaneous torque that should be there. This is one problem that sensored systems don't have.
Bob Novak
Bob,
I'm a big fan of Novak products. I have 3 SS ESC with 5800 BL, and bought GTB with 5.5 motor few weeks ago.
I have to admit that I'm dissapointed with the GTB ESC :( . I dont know what happened but my set went thermal shutdown even with 5 cells pan 1/12 pan car. With my 1/10 6 cells pan car, it went thermal shutdown after 1-2 minutes. I have tried everything; lowering the ratio, fan, air scoop, etc. Nothing worked and the problem went away only when i changed the GTB ESC with LRP Sphere.
Here in Malaysia, the track temperature can be as high as 50 degree C. I hope that the future ESC will adress this problem and I suggest that you include hot weather testing in Death valley much like in the automotive industry.
Flyojumper
01-29-2006, 01:05 PM
Nothing worked and the problem went away only when i changed the GTB ESC with LRP Sphere.
You can use the 5.5 Velociti motor with the LRP sphere? If so, is the LRP sphere also compatible with the new 4.5 Velociti?
azmio
01-29-2006, 06:35 PM
You can use the 5.5 Velociti motor with the LRP sphere? If so, is the LRP sphere also compatible with the new 4.5 Velociti?
Flyo,
Havent tried the 4.5 yet. The 4.5 is not yet available in Malaysia. Moreover, LRP stated the Sphere cannot handle BL motor below the 5.5 turn.
Flyojumper
01-29-2006, 07:12 PM
Hmm, so you can use Novak's motors on LRP Esc, that's good to know. Have you tried the 5.5 velociti on 7 cells? (since the Novak GTB only supports 6 cells and the LRP supports 7, I thought it would be a nice advantage if it could work).
jocktheglide165
01-29-2006, 07:54 PM
Bob,
I'm a big fan of Novak products. I have 3 SS ESC with 5800 BL, and bought GTB with 5.5 motor few weeks ago.
I have to admit that I'm dissapointed with the GTB ESC :( . I dont know what happened but my set went thermal shutdown even with 5 cells pan 1/12 pan car. With my 1/10 6 cells pan car, it went thermal shutdown after 1-2 minutes. I have tried everything; lowering the ratio, fan, air scoop, etc. Nothing worked and the problem went away only when i changed the GTB ESC with LRP Sphere.
Here in Malaysia, the track temperature can be as high as 50 degree C. I hope that the future ESC will adress this problem and I suggest that you include hot weather testing in Death valley much like in the automotive industry.
easy to blame novak for a blow up, but question is did you gear correctly or even conservatively to begin with to avoid this blow up?
P90Puma
01-30-2006, 04:07 PM
He didnt have a blow up. He tried everything and the GTB just couldnt handle the 50*c ambiemt temperature. Here in NA we never even get close to that.
Tmaxxinman
01-30-2006, 05:07 PM
How low can you go! :)
I'm awaiting the Fractions! :D
As far as this "GTB" novak ESC, i think team Novak needs to re-do some of their homework... some kind of insane fan, cooling system, or maybe just a dfferent design in the curcitry. Has anyone tried the motor with an ESC other than the GTB?
Johnno
mpetrich
01-30-2006, 08:08 PM
I'm awaiting the Fractions! :D
As far as this "GTB" novak ESC, i think team Novak needs to re-do some of their homework... some kind of insane fan, cooling system, or maybe just a dfferent design in the curcitry. Has anyone tried the motor with an ESC other than the GTB?
Johnno
Maybe I missed a post but have you used/own the GTB with a Velociti motor? I have ZERO heating problems with my GTB. Running it in a 1/12th scale car (4 IB3800 cells) indoors. I use the Nomadio radio with the temp sensor mounted directly to the motor can. I am barely over 80 degrees after a 5 minute run.
Matt
azmio
01-31-2006, 08:48 AM
easy to blame novak for a blow up, but question is did you gear correctly or even conservatively to begin with to avoid this blow up?
Jock
With all due respect , i wasnt directing my concerns to you :mad: . That's why I wrote BobNovak and not Jock. My 5.5 motor did not blow up, nor did my GTB ESC. They are working really well except that my set went thermal shutdown frequently especially when i was racing hard against 1/8 nitro cars. This is the main reason why I forwarded my concerns to Bob and not you.
If you read my posting correctly, i was suggesting Bob to do hot test in death valley or Arizona during hot summer cause I design car engines for living and hot climate test is a must during the development stage.
In case you are still thinking that I geared my car wrongly, hope this will make you feel better. My HPI 10g 1/10 pan car was geared with 124 spur and 18 pinion. I just could not go anything lower than that cause that's the limit and I just dont have anymore space to go to for spur with more than 124 teeth. My foam tires that I used also had around 4mm foam left..
Since you seems to think that you're a great problem solver and seems to have crystal ball to predict all the wrong things that i do, what's your recommendation for me to solve my thermal shutdown problem when the track temperature goes as high as 100 ferenheit? Come on dude, the least that you can do is to make me feel better after spending money for my GTB set.
azmio
01-31-2006, 08:53 AM
Hmm, so you can use Novak's motors on LRP Esc, that's good to know. Have you tried the 5.5 velociti on 7 cells? (since the Novak GTB only supports 6 cells and the LRP supports 7, I thought it would be a nice advantage if it could work).
Flyo
My 1/10 pan car has 8 slots for batteries but i really dont want to have anything more than 6 cells. 6 cells are just good enough for me to make life difficult for 1/8 nitro cars.
azmio
01-31-2006, 09:05 AM
Maybe I missed a post but have you used/own the GTB with a Velociti motor? I have ZERO heating problems with my GTB. Running it in a 1/12th scale car (4 IB3800 cells) indoors. I use the Nomadio radio with the temp sensor mounted directly to the motor can. I am barely over 80 degrees after a 5 minute run.
Matt
Mpetrich,
I have downgraded my GTB set from my 1/10 pan car to 1/12 pan car. First with 5 cells and now it ended up with 4 cells. Here in Malaysia, we are now having quite a long chinese new year holiday. I did a lot of R&D every morning. Here are some findings. with 4 cells i could take away my fan but I once experienced a thermal shutdown during hot weather. So I opened up my body shell for some venting or air scoop. I havent got any thermal shutdown yet.
I've been thinking, I wonder what happened to the GTB set everytime my car brakes hard? The energy cannot be destroyed so it has to go somewhere. For hybrid cars, during braking, the energy will be put back to the battery. I wonder where it goes inside the GTB set? I've been reading posting from others and they claimed that the energy during braking will go straight to the heat sink and I wonder how true it is.
One thing for sure, my favorite track in malaysia requires me to brake hard frequently after long straight and long sweepers. I wonder if that is the reason why my car went thermal shutdown more than GTB in other part of the world.
Another suggestion for Novak, if the current architecture of the BL leaves not much choice in term of combating the thermal problem, try channelling the energy absorbed during braking to capacitor or charging the battery. Try to think more like the hybrid car engineers. Perhaps you guys can make a breakthrough and for sure it's for the benefit of rc car maniacs like me.
Freedom
01-31-2006, 03:34 PM
Flyo
My 1/10 pan car has 8 slots for batteries but i really dont want to have anything more than 6 cells. 6 cells are just good enough for me to make life difficult for 1/8 nitro cars.
How fast is your car? What's your setup?
azmio
01-31-2006, 08:10 PM
How fast is your car? What's your setup?
I dont have any radar to measure my car top speed. However, I can say that my pan car is as fast as good 1/10 nitro cars on long straight. My car has tighter radius, brake shorter and punch faster out of corner. Which are really great for the rest of the track.
I also have to add another lexan to my rear for extra downforce. Without it, my car is kinda twitchy. I use 40-45 shore rating for my front tires. I have a tiny understeer but the drag brake is really useful in getting back steering.
aqualato1
02-12-2006, 12:28 PM
Azimo what is you differentials gear ratio becuase you might be undergeared. I dont know what your internal diff ratio is but I guessed around 2.6 and that brings the fdr to ~17.9.Your final drive ratio is somewhere around 18 but you should be around 9 (9 is for a 1/10th touring car so 1/12th scale might even be able to go lower) .
If I'm right then your car would overheat becuase it's just like the motor spinning freely.
ElectricThunder
02-12-2006, 06:44 PM
Azimo what is you differentials gear ratio becuase you might be undergeared. I dont know what your internal diff ratio is but I guessed around 2.6 and that brings the fdr to ~17.9.Your final drive ratio is somewhere around 18 but you should be around 9 (9 is for a 1/10th touring car so 1/12th scale might even be able to go lower) .
If I'm right then your car would overheat becuase it's just like the motor spinning freely.
That's what I was thinking. Although, I thought 1/10 pans just had a direct drive system, same with 1/12ths. Even still, 18/124 is probably undergeared for a system like the GTB in such a light weight car, even if it is direct drive.
aqualato1
02-12-2006, 07:56 PM
wow direct drive, that's cool. If that's true, Azmio you'll have a drive ratio of 6.89.
Azimo- do you remember the stock gearing for your car?
azmio
02-14-2006, 01:03 AM
Yup, it's a direct drive. I run 114/26 with my 5800 brushless and it was doin' fine. Not undergeared or overgeared. I forgot the stock gearing but it must have been 2 teeth pinion gear (48 pitch) more.
With 5.5 i had to lower the ratio further. I have tried 122/25 and it went thermal shutdown even sooner.
Anyhow, I have contacted Charlie and he asked me to send it back to the customer service. He is certain that my temperature sensor is faulty.
jocktheglide165
02-14-2006, 04:29 AM
Jock
With all due respect , i wasnt directing my concerns to you :mad: . That's why I wrote BobNovak and not Jock. My 5.5 motor did not blow up, nor did my GTB ESC. They are working really well except that my set went thermal shutdown frequently especially when i was racing hard against 1/8 nitro cars. This is the main reason why I forwarded my concerns to Bob and not you.
If you read my posting correctly, i was suggesting Bob to do hot test in death valley or Arizona during hot summer cause I design car engines for living and hot climate test is a must during the development stage.
In case you are still thinking that I geared my car wrongly, hope this will make you feel better. My HPI 10g 1/10 pan car was geared with 124 spur and 18 pinion. I just could not go anything lower than that cause that's the limit and I just dont have anymore space to go to for spur with more than 124 teeth. My foam tires that I used also had around 4mm foam left..
Since you seems to think that you're a great problem solver and seems to have crystal ball to predict all the wrong things that i do, what's your recommendation for me to solve my thermal shutdown problem when the track temperature goes as high as 100 ferenheit? Come on dude, the least that you can do is to make me feel better after spending money for my GTB set.
I personally dont care who you were telling its a forum and i was just posting comments on maybe you didnt gear correctly, etc.. I was just giving suggestions not flaming you so chill why your at you need to calm down its a forum if you didnt want to post what you said then you should have posted those comments to bobnovak not the whole forum to see :rolleyes:
ElectricThunder
02-14-2006, 04:07 PM
Yup, it's a direct drive. I run 114/26 with my 5800 brushless and it was doin' fine. Not undergeared or overgeared. I forgot the stock gearing but it must have been 2 teeth pinion gear (48 pitch) more.
With 5.5 i had to lower the ratio further. I have tried 122/25 and it went thermal shutdown even sooner.
Anyhow, I have contacted Charlie and he asked me to send it back to the customer service. He is certain that my temperature sensor is faulty.
Does the heatsink feel really hot when you touch it after it goes into thermal shutdown? :confused: O well, probably best for you to send it in anyways. Maybe if you're lucky, Novak will give you a brand spankin' new system entirely.:D
ofnaravager9
02-14-2006, 05:19 PM
4.5 with the GTB, lol yeah right. Mabye with 4-10 fans attached!
lol :D
azmio
02-14-2006, 07:45 PM
I personally dont care who you were telling its a forum and i was just posting comments on maybe you didnt gear correctly, etc.. I was just giving suggestions not flaming you so chill why your at you need to calm down its a forum if you didnt want to post what you said then you should have posted those comments to bobnovak not the whole forum to see :rolleyes:
Jock,
Cool, I thought you wrote what you wrote because you didnt read my posting properly and jumped straight into your own conclusion. Anyhow, if you reckon that what you wrote is just a "suggestion" i'll make sure that i wont bother to read any of your "suggestion" all in the future. :)
azmio
02-14-2006, 07:50 PM
Does the heatsink feel really hot when you touch it after it goes into thermal shutdown? :confused: O well, probably best for you to send it in anyways. Maybe if you're lucky, Novak will give you a brand spankin' new system entirely.:D
Electric,
The heat sink wasnt as hot as my LRP Sphere's. Maybe on the upper side of warm but not yet considered hot. Charlie told me that if my car slowed down instead of came to a halt, it's a symptom of faulty heat sensor.
BlutoSigPi
02-28-2006, 07:17 PM
So is this motor too "wicked fast" to put in my XXX-4G+? If so can't I just turn the performance down for racing and turn it back up for playing? Any opinions?
jocktheglide165
02-28-2006, 08:02 PM
Jock,
Cool, I thought you wrote what you wrote because you didnt read my posting properly and jumped straight into your own conclusion. Anyhow, if you reckon that what you wrote is just a "suggestion" i'll make sure that i wont bother to read any of your "suggestion" all in the future. :)
my bad man if I sounded rude yeah good old AZ though I used to live in chandler man 2 years ago I miss it. anyways yeah AZ heat can be herrendous on electric or gas vehicles. :eek:
azmio
02-28-2006, 08:09 PM
Jock
I used to live in Arizona too. I worked for Motorola and lived in Tempe. Yeah, the temperature is really hot especially in July. I think Novak should conduct a lot of hot test there. With all the improvement over problems found in hot desert climate, I am sure that the ESC will run much much cooler in the future.
apulmax
12-07-2006, 05:02 PM
Hi guys,
Im all new to this game
I have bought a Novak Brushless HV-Maxx 4.5 Motor cheap and now looking for an ESC to run it. Being in the UK they are really expensive. Can I run any other brushless ESC with it, say a HexTronik 130A Brushless ESC?
I notice the Novak has sensor wires, can the motor be run without it plugged in?
I am modifying a Hobao Dominator to 2 speed electric. Will be awesome with this motor.
Hope you can help
ElectricThunder
12-07-2006, 05:25 PM
You can run it on a sensorless ESC, but it probably won't perform as well as it could or should. It would have been better to buy the HV4.5 combo with the ESC included.
SpEEdyBL
12-08-2006, 10:06 PM
He already has the motor.
ElectricThunder
12-09-2006, 12:37 AM
He already has the motor.
That's why I said "It WOULD HAVE been better...", as in he should have bought the two together in the first place instead of just the motor.:)
psiturbo
02-13-2007, 07:35 PM
I got a friend who has a JR Racing 2 channel radio with a Novak 4.5 Velociti brushless package.
He mentioned that everything comes with capacitors and he followed everything per instructions. Whenever he drives his Team Losi Truck at around 100 or so feet range the truck starts to glitch and goes crazy. He has double checked everything to see if there is any loose wires, metal to metal contact etc.
He is thinking of migrating to the Spectrum transmitters to "see" if that is going to resolve the problem.
Has anybody encountered a similar problem with brushless motors?
Would the new Ghz transmitter resolve the issue? If not, any tips that my friends could provide...?
Thanks in advance
CharlieS
02-13-2007, 07:42 PM
I've seen guys using Entry level or RTR AM radios have problem when using "faster" motors. THis is due to more current draw and faster speeds of everything in the ESC and motor. Using a decent FM radio usually helps, but many guys have simply had "sloppy" instals be the root of the problem as well.
Spektrum can help for sure.
psiturbo
02-16-2007, 11:19 AM
bump, any more feedback?
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