It can be geared up to run 40-45mph comfortably but I don't usually have it geared that tall for racing. It's probably good for low to mid 30's as in the video.
The other video posted was running on 5s lipo and a hot motor... sick fast.
Alright, I guess I'll help you guys out because a lot of you don't seem to have a clue about much of this stuff.
For your esc I would get a warrior 9920.
For your motor
buget go w/ the feigo 7xl or 8xl.
if you have coin to drop then get the neu 1512 and pick a wind that revs between 1.8kv and 2.2kv. The motor choice realy just comes down to what type of track your running on. The lower kv motor will have more torque, but less top end. All of these motors will easily out run a nitro on a 4s lipo.
The hv max isn't designed to handle over 12 cells and I would worry about thermaling if you ran 4s lipo in it since a lot of their systems are pretty much designed to handle the bare minimum.
The battery should be a 4s lipo w/ 8kmah and atleast a 15c rating or a 12k mah pack w/ atleast a 10c rating. The 8kmah pack is the norm though. With a properly setup neu 1512 30+ minute runtimes are the norm. The feigo will push 25 minutes when properly setup. Yes, the neu realy is worth the extra money.
The best charger for the money is the astroflight 109 w/ a good balancer. 4s lipo is going to give you the best mix of race power and run time.
All you realy need for this conversion is a motor mount, and a pinion gear. If your scared to build a kit then I would recommend going with a complete kit where some one has taken the time to help create a balanced chasis.
The eight does seem to be a tougher conversion though.
We races these all winter long in Ann Arbor, MI at Washtenaw RC Raceway. VERY FUN!! VERY FAST. We only ran 5 min races.. but this summer outdoors we will get an idea on Bigger tracks and see what kind of run time we can get out of some of these batteries. Our back straight was 96 ft long with a 180 deg turn at the end. Cars were radar gunned at 40 mph!!
Battery choice will depend on your battery configuration in the chassis AND your electronics choice. There are MANY different motor and ESC combinations being tried right now all over the world.
Speed is not a problem for these combinations. That 12000 is A HUGE battery though. Check the specs on it!!! Run time doesn't seem to be a problem with a properly geared vehicle also. You can easily get 15 min out of a 6000 Mah battery. That is what I am going to try in my EH7 this summer. I use the HV Maxx 4400 system. I am going to run two 6000 Mah 7.2V Lipo's. They are still lighter than sub-c cells and are the same size. I am anticipating 15 to 20 min of run time.
Hard to say about total run time.... again, Motor and ESC configuration as well as gearing are all going to play a part in that as well as the driver and track conditions. We will have to wait and see as the summer goes on and we tune these cars to see what we get.
I am not a motor or electronics specialist. My specialty is the design and manufacture of the components to fit in the chassis.... Hopefully someone with more experience in this area will help out. At Washtenaw, Some ran Novak HV Maxx. Plentenburg(sp?) Nue and others were all being run. One thing about this is that it is all really new... These motors and ESC's.. except for the Novak were designed for different applications. Mostly the RC Airplanes and helicopters. We have to see how the technology transfer to a buggy on a 90 deg humid day in the middle of the summer.
__________________
Do a Hobby... NOT Drugs
www.rcproductdesigns.com
TC3 "O" V3
Electric 1/8th scale conversions
Washtenaw RC Raceway Michigans Biggest and Best Indoor Dirt Racing.
LAZER Speedway. Race at LAZER, everywhere else is just a parking lot.
MAX AMPS Batteries
Neu Brushless motors.
Great info guys, and I'll be happy to run "thermal" tests down here in the hot humid weather... If you can build a conversion kit for an 8ight, then I can buy one, install the neu 1.8kv motor(we have a short technical track)and that warior ESC sounds interesting. Where's a good place to get all the electrical componants? I figure maxamps for the batteries, but what about the ESC and motor?
rc-monster.com for the electronics.
For these aplications maxamps is probly the best way to go for a battery because you need the 15c+ rating w/ an 8kmah pack. The astro flight 109 w/ a good balancer will be your best choice for charger.
They don't have the mah rating, but if you have enough room you can run the li-ion in parallel and get 4600 mah ( each cell is 3.3v 2300 mah) and they only take 20 mins to charge a 3s pack. Ive seen 3 lipos go up in flames the past 3 weeks which is convincing enough NOT to get them......yet.
I know you can charge them In a hurry, but finding a charger to charge them is the hard part. I mean, am I just suposed to go and build like 4 2s 4.6k mah packs and get like 4 chargers or something? I have heard that you can take the 32 volt dewalt packs and those are filled with a123 cells. The cells have a 2.3c rating which means that you can charge a 9.4k mah pack at like a 20 amp rating.
Great info guys, and I'll be happy to run "thermal" tests down here in the hot humid weather... If you can build a conversion kit for an 8ight, then I can buy one, install the neu 1.8kv motor(we have a short technical track)and that warior ESC sounds interesting. Where's a good place to get all the electrical componants? I figure maxamps for the batteries, but what about the ESC and motor?
The EL8 pics are up at the top and I am taking orders for the kit now. I will have the price soon.
Dan
__________________
Do a Hobby... NOT Drugs
www.rcproductdesigns.com
TC3 "O" V3
Electric 1/8th scale conversions
Washtenaw RC Raceway Michigans Biggest and Best Indoor Dirt Racing.
LAZER Speedway. Race at LAZER, everywhere else is just a parking lot.
MAX AMPS Batteries
Neu Brushless motors.
Please email me a price for a Losi 8. I want something that will run for atleast 15min. If you have the weight after the conversion that woul d be nice too.Thanks
The EL8 pics are up at the top and I am taking orders for the kit now. I will have the price soon.
Top of where?...the first page of this thread? I went to your site, but I can only find info on the TC3 "O"... I'd like to see how you vent the body, to keep the motor and ESC cool. I have a few ideas of my own, and the more we talk about this the more I remember having a near identical conversation many moons ago with glassdoctor...but it may have been on another board.
I don't think you guys understand. These guys are saling a kit that will allow you to mount an electric motor instead of a nitro engine. Here is a base price at what you actualy need to convert your car or truck to brushless.
"charger"Astro flight 109 & a balancer-$150. (tower hobbies)
"Battery"A 14.8 volt 8k mah battery with atleast a 15c rating. You battery needs to be able to handle a steady current at over 90 amps if you expect it to last a long time.-$250.
"ESC"Warrior 9920 esc-$180. (not sure who has the cheapest, but that is close to the going rate on these.)
"Motor"Neu 1512-$225 1.8kv-2.2kv motor. The kv varies on the wind. 1.8 for tight tracks and 2.2kv for large tracks.
OR
feigo 7xl,8xl,or 9xl. Pick it based on the size of the track. The lower the turn the higher the torque and the lower the rpms. These cost like $70.
The neu is a better motor though. They are similar in power, but the neu will get you better run times.
Motor mount-$10-70. It all depends on what it actualy takes.(where ever you can get the right mount.
If you are lucky you have something like a hyper 7 and can just take a e-maxx motor mount and mount it to where the brake assembly would normaly mount.
Pinion-$30.(rc-monster.com)
Here is a more budgetted setup that should still push you to 35+ m.p.h. You lose about half a pound in battery weight and will also get more run time.
Battery
11.1V 3S2P 8000mAh 10c battery -$105.(truerc.com)you find it under custom packs
mamba max esc.-$125(towerhobbies)
feigo 8l.-$70 (rc-monster.com)
This setup should operate with the limited 10c rating of the battery. This setup will push the car at 35+ m.p.h. and is more suited for the lower voltage pack.
Either way you are looking at spending at least $500 for everything it will take to convert your car or truck to brushless including the best lipo charger on the market for these aplications.
If that much money scares you then do this.
Purchase a durable 4wd 1/10th scale buggy.
purchase a mamba max w/ a 7700.
purchase a true rc 7.4 volt 8k mah lipo.
Purchase a charger.
That is what it takes to run 1/10th scale 4wd in 20+ minute mains. You will need to run an air scoop of some sort to help keep the electronics cool. buggy chasis are cramped and get hotter then larger chasis do.
I understand what this was from the get go, and I appreciate the cost break down...thank you!
Can you tell us more about the diference bewteen the Neu and Feigo motors? I'd like to know if one is more prone to thermal than the other. Or is this like ford VS chevy?
If you can build a conversion kit for an 8ight, then I can buy one, install the neu 1.8kv motor(we have a short technical track)and that warior ESC sounds interesting. Where's a good place to get all the electrical componants? I figure maxamps for the batteries, but what about the ESC and motor?
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