8ight-t 1.0 Race Roller Conversion Help
 

i purchased the electric conversion and the CC Mamba Monster 2200kv combo, what would be a good size battery to give .21 - .28 nitros a run for their money? I have the 8ight-t 1.0 race roller

3s 4s 5s 6s? and what mAh will give me good run times? Can i double up on lower mAh packs? example like 2 3000mAh packs or 2 2350mAh etc... will 3000 work ok? or do i need 3000+ its a small technical track with lots of jumps. just trying to save some money. I do not know much about the math behind the cell count/mAh/kv/15c/20c/25c/30c.... can someone give me a quick run down on what to look for if i want to club race? looking for best bang for the buck thanks. please answer what you brushless masters can for me!
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I'd go 5s 4500-6000mah

Yep, you could run a 5s 5000, but gear down low for 38mph and you should last long enough.

Thanks, what gears should i use? also i updated post with a list of batteries. can i double up on packs? what kind of run time will i get outta a 5000mAh 5s1p?

I'd personally run 4s on a 2200KV motor. 5s on it will be very fast, unless you gear really low. Assuming you can't change the motor to a lower KV version, 5s will probably be best for a compromise of racing and bashing. If you're strictly racing though and are only on that track, I'd go with the Zippy 4s 25C 5000mah pack. 5s will be way too powerful in my opinion.

Edit: Yes, you can double up on packs. Just make sure you use the right connector (series or parallel). To choose your gearing, use this calculator:
http://www.scriptasylum.com/rc_speed/_top_speed.html
And gears are sold in the RC-Monster store. You should probably be able to get about 15 or 20 minutes out of the pack you mentioned. But it really all depends on how you drive.

NitroStarter i noticed in your sig that you run: Jammin X1 CR Buggy/MMM 2650/ 15/48 on 3s that not a good ideal on a 2200kv?

He runs the 2650kv buggy as opposed to the 2200kv truggy version.

how long would a 4s 20c 3000mAh last roughly? not long enough? If so i can afford to buy 1 each of a 3000 mAh 4s and 5s i have a 2s1p 3000mAh in my slash and that things runs forever on that track! please tell me 3000 will work for my truggy!

You might get 7-10 minutes depending on your driving style.

what about 4000, 5000 what kinda run times?

5000 would be your best bet. Probably 18-20min runtimes, since you're on a tight track, gear for low-mid 30s and you'll see 20-22min runtimes with the 5000mah.

what about gearing, should i run on my spur gear and pinion ?

I have 4 of those Rhino 20c 5s 4900mah packs in the list above for $69. There are great! They push my truggy and Revo and never complain! I'd pick up some of those and run lower gearing for 40mph or slower.

On 5s, you would need to run 12/48 gearing.
On 4s, you would need to run 15/48 gearing.

now last questions, Rhino or Turnigy 20c or 25c

Either one. Rhino's seem underrated, which is good. Turnigy's just came out but I'm sure their quality is well above par.

i decided to go with this, Turnigy 5000mAh 4S 25C Lipo Pack and Rhino 4900mAh 5S1P 20C for $157.34, thats the only 5s that i could find on hobby city that was in stock, should be ok dont ya think? What other SITES are good for buying Lipos Cheap besides Ebay

Those should be just fine. For bang-for-the-buck, hobbycity is your best bet. Let us know how those turnigy packs do!

How long does it take for Hobby City to Ship to the US? Also anything else i should know about Running lipo? i know once i get the kit putting it together is the easy part, what about the settings? Monster Mamba 2200kv. Should i use mechanical brakes or not? What other things do i need to know?

I've never ordered from them directly, I don't know but I hear about 8-10 days.

How will i be able to tell what version of the Monster Mamba I will have? I heard V2 was bad. Is there a good way to tell?

If you buy a new one it will be V3. V1 and V2 are discontinued

I would suggest skipping mechanical brakes and using motor brakes, much simpler and once your used to it I think just as good. IMO 5s is to much for your combination. I have found that gearing for low 30's (aprox 33MPH) has best overall performance on the track. I can still outrun the nitros on the long straight with this gearing, as well as being more driveable on the rest of the track and get great runtimes. On 5s it may not be possible to gear a 2200kv low enough to have usable speeds on your track. The 4s should be a perfect setup.

On that note your 4s pack is a decent choice. I have no experience with HobbyCity but I have heard their lipos live up to their ratings. A 5000mah 25C lipo can provide 125 amps (5000mah = 5A x 25C = 125A) That should be adequate to get a truggy around the track. I will estimate aprox 14min runtime on the track, but that depends on your driving too.

My setup is a RC8T truggy w/ LPR tires, 5s 4500mah 25C with a 1650kv motor, 50/14 gearing. I can make a 16min main without swapping batteries.

I usually drive lightly as to not waste my packs- hanging around in 2nd or 3rd- then turn the gas on for the last couple laps...

See the problem here is i know nothing about the KV rating on motors. I was under the impression that the 2200kv motor that came with my combo would be all i ever needed, but now i see guys with 1650kv motor and am wondering wtf? I just need a crash course in brushless is all i guess. so what do i need to know? :whistle:

2200kv is good for lower volt operation, while lower kv is good for HV. Shoot for about 35000rpm. You get rpm like this: rpm=kv*battery voltage (not amt. of cells) each cell is 3.7v, so for a 4s pack the voltage would be 14.8v and for a 5s it would be 18.5v. Got it?

so shoot for 35k rpm i got that and seems easy. so can i use any brushless KV motor with my setup?

For 4s-5s 2300-2000kv...