Man, this is gonna be one CRAZY setup, today i expericened "real" bl power, even just a little 10l on 16 cells can "burn" you away.

Yeah, sylvester, for bashing 16 cells already is more than enough.

that is a matter of opinion rene. Some of use think different. :D
I may get to try my motor out on 8s lipo.
I may see about building me another truck for it. Don't know what to expect except some serious power and breakage.

Agreed, that is the exact setup I have and I think it will be a good compromise between insanity and the laws of physics. BTW I hope to have my truck running next week, I need to finish my motor mount and wire it up and it will be ready.

Yea, i cant wait to see your 20 cell chassis filled up with cells:027:

BK 36120 only. I want reverse and 10s lipo, 2250 13 turn, but may go with 11s lipo and 2250 14 turn if the controller could take 11s lipo. WHen you increase, the voltage, if the motors are the same, what happens to the amp draw. What is the amp draw of the 2250 13 turn on 10s lipo? what is draw of the 2250 14 turn on 11s lipo? Do I need 8000 mah lipo or can I use 4000 mah lipo? Just need straight answers please?

The higher the cellcount on the same motor (assuming you use the same pinion/spur) the higher the current.

If you use the 4000 and they are 20C, that setup can deliver 2960 watts, that's enough in my eyes, but ever since you have got an indomitable need for power, you might as well get the 8000mAh, and yes, the 36120 can take 11S lipo. If you are going for such a high power setup, please reconsider the choice of your controller and get an 36150 instead.

Now, please tell me... because i am burning of curiousity.. What is your plan with this setup?

When you increase the voltage the amp draw will go down, different motor same final rpm, amp draw will vary based on the load placed on the motor--ie gearing, weight of truck, how far you pull the trigger-- I dont think you would excede the controlers rated amperage, the mah rating of the lipos you pick is related to the amp draw and their ability to deliver current. Assume you pick 4000 mah lipos that are rated at 20c that means the amps they can deliver is = to 4.0ah x 20 = 80amps, with lipos you want to make sure they can deliver the amps you need, if you got low capacity cells it doesnt matter that they are 20c rated cells they will not deliver high amps, same with c rating 8000mah 2c rated cells will not deliver the amps you need either. With the higher voltage setup your average amp draw will be less which also means your runtime will be higher, based on that my opinion is that 4000mah would be fine as long as they have a high c rating 20 is what I would (and have got) get. Again it also depends on gearing, if you are gearing this truck to go 80 mph your amp draw will be signifigantly more than if you gear it to go 55 mph. My recomendations are based on normal gearing not 80 mph crazy gearing. I would personally recomend the 3700 mah apogee lipos on this site I have similar lipos myself, obvously you would need 2 packs, I also have and recomend the hyperion charger and balancer.

Like i said;

More cells, same gearing, higher current.

the 36120 is pushed to it's limits on 11S lipo and a 2250, i advise that 36150 for nothing NL12?

The extra insurance of the 36150 would be wise I agree Serum, but if the motor drew 120 amps powered by 11s lipo (assuming the lipos could deliver 120 amps at 3V) that would mean the 2250 was putting out 11*3V*120Amps= almost 4000watts, how fast would you have to be going to summon the power of 4000 watts? Wouldnt it be unlikely for the motor to draw 120 Amps (the limit for the 36120)?

where can I get a 36150, and how much are they? Since a 2250 14 turn is a lower current motor compared to the 2250 13 turn, on 11s lipo, how would its' current draw be compared to the current draw of the 2250 14 turn on 11s lipo? Also the maxamps cells are rated at 12c constant, 16c burst. Would 4000 mah packs still be enough or should I go for 8000 mah packs?

Mike can get the 36150 for you, it is imposible to give absolute numbers for amp draw without testing the system but a higher turn motor on equal voltage will draw fewer amps, I would reccomend the 8000mah if you are set on the maxamps cells

It is powerhungry, the 36120 would be okay, Peaks would be insane on 11S but for that few bucks more, i like the insurance.

Again extrememods; what are you going to use this setup for? it would make more sence to me.

Are you by any change the person i talked with about a savage conversion?

It is time to knock Promod out of 1st place for the e maxx speed record.
How much does the 36150 cost? My goal is 75 mph. Can a 2250 14 turn on 11s lipo make enough power for that speed?

499 if i remember correctly.

I like Promod though, he is a nice and humble person.

the 2250 14 turn on 11s lipo should get you to that speed.

i havnt seen promod around the forums latley wonder what his latest project is

the motor and batteries are up to the task. I don't know about your truck though.

ya, thats what i was gonna say, your gonna need something like this to hold up that thing!

FLM Hybrid bulks OR UE VBS
UE 8 spyder diffs
23mm dace adaptors
UE 8mm cvds
UE center cvds (or mikes cvds, they are good too)
Strobe slipper(will need some modding, a 2250 on 10s or 11s lipo is A TON of power)

Then theres suspension which is up to you, but for somthing with the power your looking at UE RacerX suspension would be good.

Would I be better with 36 IB 4200 cells and a 2250? How would the speed and power compare to 11s lipo on a 2250 14 turn. How durable is lipo when it comes to surviving a crash at very high speeds? Maybe buy 12 6 cell IB 4200 packs, run 6 in series, then switch them and use the other 6 packs. Also, how bad are ebay IB 4200 packs

lipos aren't as durable as a sub-c but if you secure them really good and use some foam to lessen the vibrations then they'll be fine

for speedrecords, you need lipo's, for bashing, you want NIMH.

Same thing as serum said, and ebay ib4200's... well, i wouldnt trust, you can try www.boomboombatteries.com , i got my packs from there, SxS, they are a great price! And theyre awesome, my truck screams!

Can I use the "bash pack" (4200 mah, stick pack, $35.00 each, or would side by side packs be better? How many volts do these packs really produce under load? Would it be safe to use 36 of these cells (6 6 cell packs) on the BK 36150 with the 2250 13 turn, or is that risking electronic death? How does charging at different amps settings affect the batteries? How good are the integy 4200 mah packs, and the 4200 mah packs from other manufacturers?

Is there any response from anyone please?

What brand are those 35 dollar 4200mAh packs? depending on HOW stickpacks are build, they can be soldered end to end or connected with a shitty little piece of thin metal (those are a big nono) what i like about side by side packs is that you can take out a cell that goes bad. with soldered inline packs, this is hard to do. There are tubes available though, that you can use to put in cells and they will connect thru some sort of zilver paste. seems to work like a charm too.

Integy usually uses IB or GP cells. they are okay.

I bought some GP3300's that produce 1.213V@20A load, that are good numbers.

If you take 100A out of those little buggers, it's voltage will most likely drop till 1V or lower. Rule of thumb is that a good cell can deliver app. 100W

36 cells on that setup is not asking for trouble electronicall wise. It more is a problem to keep the driveline in tact.

about the quality of the cells;

under 100-150A load, nothing seems to beat the GP3300, with those kinds of setups, you won't notice a .01V difference per cell. Again, you really don't want a 70 mph truck to jump with.. And if you do.. PLEASE make a movie, i wouldn't mis it for anything in the world!

For bashing i would take 26 cells.

there is a difference in need for speed for speedruns and bashing.

It's easy to build the packs, it's cheaper, and you can build them in whatever funny shapes you want :)

Serum - where did you get those cells?!

If you're running huge currents then i would imagine you want some big LiPo or LiMn cells. Apogee are selling 3S packs 3800mah 20C packs - thats 76Amps.

If you ran 4 of those, you'd have nearly 3.5Kw of power to play with...

I was speaking to the guy and he said the average loaded voltage is 3.8 and they have a lower internal resistance so run cooler and the voltage doesn't drop as much under load...perhps you should think about using those?

Sounds like a great project - good luck.

I got them in Germany, so it's fair cheap for you to get them to the UK.. no customs or so..

They are these packs.
http://www.boomboombatteries.com/pro...x?ProductID=58

Tom,
I have realized I have no way to afford lithium and strengthen the truck to handle this type of power. I think strengthening is more important.

Here is a good review. The whole site is awesome, a real basher's dream, but a racer's dream also.

http://www.beatyourtruck.com/prodreview-IB3800.html

Also, is $6.99 a good price for unmatched Gold Peak 4300 loose cells, or are the $35.00 4200 mah stick packs the better deal? How important are an extra 100 mah, are they really worth the extra cost?

I don't know if Alex soldered them end to end or they are spotwelded.

Only Alex can tell.

But lipo isn't able to put out more power than normal cells, it is more power per lb, so the trucks drivetrain actually is better of with lipo.

You don't need a big ass set up like that to have fun though! i read stories about a XL3100 on 12 cells going 50 mph.. (it depends a lot on the quality of the cells) i am going to make a maxx with 6S lipo and a small motor, such as a basic XL, feigao S or lehner 1930.. make it light, and easy on the drivetrain, because of it being light. ( i am going to use a low kv motor though)

Is it possible to dissassemble stick packs?

If they are spot welded using a thin metal sheet, then yes.

If they are soldered there is no need to dissemble them right? (it hard, but doable though)

Im sure alex can make ib4200 in side by side formation, just pop him a email.

I got my ib 4200s from alex in 8 cells side by side config.

I've heard nothing but good things on the BBB packs - so i bought some last night.

Will give some feedback when they come/i've built them :)

I'm of the opinion that you dont need such a monstrous set up to have fun as the others said - if things are breaking cos it has an obscene ammount of power and a lot of weight - then it will suck.

Pick something like a Plettenberg Bigmaxximum or Lehner 1930, and run on like 18 cells.

Cheaper, less powerful (but still 1800W is a huge ammount of power) and you can get away with using cheaper cells cos of the reduced current draw (and that = less weight, less wear, more acceleration and more runtime)

Lots of cells and huge motors are fine in a 5th scale thing like an FG or something, but to be honest i think you'd have more than enough power with a cheaper set up - and a lot more fun.

Are Gold Peak cells better than Intellect Batteries cells?. The Gold Peak cells seem to have a higher price pe mah rating compared to Intellect Batteries? I also think the drivetrain is fine.

Here is promods thread about his truck.
http://monster.traxxas.com/showthread.php?t=231706
Look at his drivetrain setup, mine will be made much stronger than that. I think a good setup will be using a 2250 13 turn on 36 cells with full CVD's, alluminum diff cases, and robinson racing diff gears if the stock one strip out. I do not abuse the trock and drive it very nicely on pavement only at high speeds, and I never allow myself or anyone to jump my emaxx at any speed or height.

You are joking right. You think the rrp gear are going to hold up. I had torn them out with a 7xl regularly. The 2250 is almost twice the motor the 7xl is. If you going to have a chance at a diff surviving you need the 1/8 diffs.
I know you want to go fast. I know you want massive power. If you not welling to spend the money for relible drive train. Please get a video of it.
Don't get me wrong though. I wish you the best of luck. The 2240 was powerful. The 2250 is more motor and you going to have more weight on it.

the GP3300s are really excellent - but the 3700s are best avoided (not as good as the 3300) and the 3600s plain...sucked.

The IBs have a good reputation - i'll do a comparison when mine arrive.

Tom F, you dont mean the old IB 3600's huh? I have heard they were great batteries.

You realize, that this is not going to be an everyday drive?

I'm sure there were some GP3600s - they didn't last very long cos they were very unreliable.

I know for sure they weren't the IB ones - i've only heard good things about all things IB