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-   -   lehner 2250 13turn (https://www.rc-monster.com/forum/showthread.php?t=2941)

extremexmods 05.02.2006 02:57 AM

Even if they are not matched, is $5.95 a good deal on Gold Peak 4300 zapped loose cells, or must I really spend $8.50 on matched zapped ones? I will need to get 36 cells, price will be high ($214.20 unmatched, or $306 matched). I do not race the truck, are matched cells really super important or will unmatched be fine?

boss 302 05.02.2006 06:53 AM

dont get the 4300s their voltage isnt good at all.

Tom F 05.02.2006 06:53 AM

That does sound good...$6 a cell.

As you said you were just going to be bashing with it - i would run the unmatched cells. They will probably be +/- 3% or something - they will all be pretty close.

For what you're going to be doing you wont notice the difference between 1.18 and 1.21V/cell - the price increase isn't worth it for what you're going to be doing with it.

Serum 05.02.2006 10:13 AM

Extrememods;

You read the warnings from Coolhand and me?

Your drivetrain is like butter for a glowing hot knife like the 2250.

You need 1/8th diffs to keep the driveline in tact... UE cvd's, not the cheap cvd's from t-bonz or what so ever.. it will EAT parts..

Please consider this stated facts, and don't ignore them.

We don't give any negative comment on what you are doing, but you simple don't realize and you don't want to take anything from us? (or at least, we have got that idea)

The GP3300's would be my personal choice too. Matched is nice, in terms of unbalance in discharging.

Sneeck 05.02.2006 10:33 AM

Go ahead and take the unmatched. But please don't come back saying your truck suck's and it doesn't perform. It's NOT about the voltage the cell's can give, but the current. Unmatched will BURN OUT if you push them over their limit's and can even explode like lipo's can. And trust me when I say the 2250 is amp hungry, it'll smoke unmatched like it was nothing. If you want to take this risk, fine, but I really do not see the point in spending over 800$!!!! on a motor and controller and run some cheap ass cell's to beat a speed record.(laugh's tbh)

Suit your self m8. If you don't want to take advice from post's people been trying to tell you...

Tom F 05.02.2006 11:29 AM

I tend to agree - i think something like a 7XL would be more fun - imagine how many more packs you could buy with the money you'd save.

And it's not like that would be a slow set up...

Sneeck - how amp hungry is it?

I'm sure you know more about this than i do, but will it pull that much to weed out the differences in the quality of the cells?

You could always buy a box of like 200 off ebay and match/zap them yourself...

nl12 05.02.2006 11:38 AM

Speed costs money, I would not attempt a speed record project unless I had at least $3000 in funds for it. I have spent over $2000 so far on my jammin crt and it only has a 2240 and 8s lipo, it may take another $500 or more before it is finished, depending how the drivetrain holds up and if I need to go to a 8s2p setup. Remember you get what you pay for, and speed costs money.

extremexmods 05.02.2006 05:11 PM

I will use UE 8 spyder diffs, mip or UE driveshafts, and matched, zapped GP 4300 cells. Would these help? How did Promod use stock diffs and driveshafts with the 2240 and 28 cells?

squeeforever 05.02.2006 09:05 PM

I bet he was REAL easy on it and im sure they didnt last long at all. Like I've said, the GPs aren't the way to go. The IB 4200 are the best.

Serum 05.03.2006 01:27 AM

do not take the 4300's, take the 3300's.. It is said here before..

extremexmods 05.03.2006 10:42 AM

Do not see why the GP 4300 is bad while the GP 3300 is better. How are IB batteries better than Gold Peak? What are the voltages of the GP 4300 and the IB 4200, when they are zapped and matched? I guess I will have to get the IB cells, but then I lose 100 mah worth of runtime? H

Gustav 05.03.2006 11:00 AM

Runtime? I thought this was a speed run machine? 5 mins should be enough.

Sneeck 05.03.2006 11:23 AM

I begin to wonder how big of a wooden board you got stuck before your head. How many freagin' time's do I have to tell you that it's

NOT

about voltage, but amperage. For example, if you got 1.20 volt cell's they may aswell give that voltage at only 20 amp's discharge. While other cell's give out 1.175 volt's on 30 amp's discharge, and so on. Voltage doesn't mean the cell is good for your setup and what your going to do with it. If it was a 1/10 onroad racer, you want the most voltage as possible since voltage mean's more rpm, and amp's mean torque aka power. In your case you need amp's to let a 13 turn motor put out enough torque to get it to speed, plus push around a heavy monstertruck with 2 kg's of battery's alone.

The gp3300 are hand's down the BEST cell's as to discharge amp's. Good quality gp's can put out over 100 amp's! at their peak's without failing. Try doing that to unmatched cell's...

And like Gustav said, forget about runtime on your setup. It will be a power rush of 10 minute's top's. It's not a every-day bashing setup you choose to run. It's a uncontrolable speed machine which better has a wide open field to run in.

Serum 05.03.2006 03:35 PM

Extrememods;

We are willing to help you, but you ask questions, you get answers and you don't believe the answers.

I don't want to be rude in what way ever, but looking at the questions you ask, you don't have got experience; example; the q's about drivetrain, batteries etc. that is nothing to worry about though, that's what this forum is for. You ask what you don't know and you get answers. If this answer is not in line of your expectation, why are we the first you doubt, instead of yourself?

Here is the part that bugs me most; Why be stubborn about something you don't even know? and you state it like 'i don't see why the 4300's would not be as good as the 3300's'

Don't ignore our posts, read them careful and do something with that information. We help you, but at this point i feel like talking onto a wall.

Please don't take this wrong, again, i have got no cruel intentions to wards you, i just say what's in my mind.

I wish you nothing but the best with your speed project, but take notice that this ain't an every day ride. And again, Promod got to that point on own power, he just tried every setup possible. Why is your goal to beat him?

If it's pure to show off, i will stop posting in this thread.

Promod is a great guy, he has got a HUGE knowledge when it comes to brushless powersetups. And all and all, he is humble and keen.

Gustav 05.03.2006 03:52 PM

I don't know how anyone else feels but i really wasn't bothered about who had the speed record when Promod was doing it,didn't see like a competative thing,more just he was passionate about BL and wanted to show what it could do and go real fast.

Extremexmods,I don't mean to be rude but i've sensed a slightly impertinent attitude at times despite the fact that you wish to use other's knowledge(not least what Promod showed us) to claim '1st place' as you put it.Something about 'standing on the shoulders of giants' (Isaac Newton)springs to mind.Maybe i've misunderstood.
Are you sure you want to spend your money on breaking the record when someone could just whip out a credit card and take it right back?:028:

EDIT;oops cross post,i was carefully wording this for a while,didn't see Serums post.Basically what he said.

boss 302 05.03.2006 04:05 PM

i agree with serum.

promod was very humble and loved to experiment with different motors and setups. He had a wealth of nowledge and used it to get him that speed record. he also never cut any corners when building his many projects. promods knowledge of bl setups was far superior to most people but he still kept his humbleness.i can only wish that i will have half the knowledge he has.

coolhandcountry 05.03.2006 04:28 PM

Oh by the way. If you look up promods truck on here it does not have all the stock stuff no more. He went with a center diff.

extremexmods 05.21.2006 04:29 AM

I have decided I do not need the extreme power of a 2250 on 36 cells. I have decided on a 2230 on 20 cells. I also can't afford it without receiving a whole load of :035: :031: :035: :031: :035: :031: :035: :031: :007: :007:. Should I use a 10 turn (1972 rpm per volt) or a 11 turn (1793 rpm per volt)? Can I use a BK electronics Warrior 9920 on this motor or should I use a Warrior 12020?

fishmasterdan 05.21.2006 08:29 AM

Those look like a good deal. However 150$ is alot of money to spend on something with no return policy.

Those are "buget cells". Check out common sense RC for a good line of budget cells.
http://www.commonsenserc.com/index.php?cPath=37_35

You can get a (2) 3100 4s batteries at 6200 mah for roughly 135$ from there.

coolhandcountry 05.21.2006 08:52 AM

I would go 11 turn and the 9920 should handle it. may consider a 12 turn as well.

extremexmods 05.21.2006 11:43 PM

If the Warrior 9920 can take a 2230 11 turn on 20 cells, could the Warrior 12020 take a 2240 8 turn (1850 rpm/volt) on 20 cells?

squeeforever 05.22.2006 12:25 AM

It should.

extremexmods 05.22.2006 02:19 AM

Here is where the power setup will be used. Have confirmed by measuring this motor will fit if I move the speed control and receiver to the top plate. The car is very durable and handles great, but for a 1/10th scale is very heavy.
http://cgi.ebay.com/HIMOTO-RC-R-C-1-...QQcmdZViewItem
The car is much heavier than the car in this article which broke 111 mph and has four wheel drive, the current record holder did not.
http://www.rccaraction.com/articles/need_speed.asp
I think I may have read this article too many times for my own good, but speed records do not last as good, I think the car is better for a speed record than an emaxx. I confess, I am addicted to speed.
I think the final setup will be this car powered by a Warrior 12020, lehner 2240 8 turn (hope the controller doesnt blow up:013: :026: ), 20 matched GP 3300 cells. Overall reaction will be:004: :004: :004: :004: :004: :027: :027: :005:. I hope the rc gods are looking at me in my favor. Any suggestions on gearing will be needed.

squeeforever 05.22.2006 09:14 AM

I don't think a 2240 will even fit be able to fit in that car. Plus you would have to make a motor mount, and that won't be to easy for a tc.

extremexmods 05.22.2006 03:25 PM

It will work, and it will be fast.:027:
How many watts is the 2240 8 turn on 20 cells? Is it enough for a speed record if I can mount the motor?

Sneeck 05.23.2006 12:40 AM

Oh my freaking lord you GOT to be kidding me. No way that car will survive under a 2240. It will tear everything appart since it'g got huge torque. Be sure to capture the first meter's on film lol.

20 cell's give out 2000 watt at their best. So say your set-up will be producing 1800 watt's of power.

If I where you i'd pick a smaller motor which wheigh's less. There is absolutly no need for such a huge motor in an onroad!!

extremexmods 05.23.2006 01:59 AM

What about a 2230 10 turn? Could the car survive that? What if I geared very long to reduce the torque and give me speed?
Sneek, I am not kidding when I say I want super extreme speed, and I think the 19 series is not strong enough My car is heavier than the one used to break the speed record, and will have more drivetrain friction being a 4 wheel drive instead of a 2 wheel drive, I want to stay with 4 wheel drive for obvious reasons, besides, a 2230 at finedesignrc.com is the exact same price as a 1950 at rc-monster.com. Does this mean the 1950 has the same amount of power as the 2230? I confess that I am an insane speed addict.
Would the torque really tear everything apart or just tear the tires apart in a massive burnout?

Sylvester 05.23.2006 07:40 AM

You DO NOT need SUCH a big motor, if you want the possibly biggest motor on that thing, it would be a 1950! The 22 series is just TOO much for almost any onroad car.

Dafni 05.23.2006 07:52 AM

No offence, but you really should take the advice, extremexmods! The members here know what they are talking about. And apparently you have not much experience with BL, so please, take the advise.

But then again, some people don't get the hint, even if you wrap it around a leadpipe. :002:

Sneeck 05.23.2006 12:58 PM

You even driven brushless? If a 1930! can push around a race maxx on 4s lipo on the track, imagen what a 1940 or 1950 can do. I just bought a 1950 8 turn for my supermaxx which weigh's almost 6 kilo's! ready to run. Hmm and with the proper gearing I could hit 50 mph without a sweat.

Still think it's not powerfull enough for a onroad car.....?

nl12 05.23.2006 02:42 PM

I would use a 1930 and 5s lipo if I wanted an ultra fast onroad car, unless it is a 1/5th scale car then I would go with a 22 series. Order apogee 5s lipo pack, MGM 16024, a rc monster heatsink, and a 1930 high amp, build the car stout gear it right, drive it straight, and it should see 70+ no problem. Oh and order from RC Monster Mike not finedesign trust me.

squeeforever 05.23.2006 02:51 PM

Actually, I would choose a Bolido for a 1/5th scale car. Only thing is finding pinions....

extremexmods 05.23.2006 09:19 PM

How fast could a 1950 go? I want to hit at least 125 mph. What would a 2230 do to this car if I could fit it in, obviously gearing way longer than a 1 to 1 ratio? I absolutely can't afford lipo. Should I get extra for a high amp? I would like an esc with reverse also.

squeeforever 05.23.2006 09:20 PM

A 2230 is out of the question....It would make it 10 feet.

coolhandcountry 05.23.2006 10:17 PM

Extreme mods Did you read the write up promod made on wattage and motor size. He ran the 2240 and a lehner xl motor. Both ran close to the same speed. Even though he geared them up the wattage was not enough to push it faster. The thread was david vs goliath. It has some very interesting facts. The 19 series should push you farther than you can stand to handle the car.

Sneeck 05.24.2006 12:42 AM

125 mph in a heavy onroad car. Well atleast your being optimistic I guess.

Good luck...

To give you an idea how fast that is, check out the video radical. They measure the speed of a buggy going wot(?) on a street. Only 45 mph but it look's fast! Your little onroad will be running 3 time's that. In other word's - uncontroleble.

Gustav 05.24.2006 04:36 AM

Guys, this is clearly a wind up.

I'm off to put a 3080 in an xmods and it's going to break the sound barrier.I'm going to start a thread about it.

nl12 05.24.2006 08:28 AM

extremexmods, this is my last post to this thread it is pointless, if you cant afford lipo, you cant afford a car to go 100+mph, anyone who has had an RC anywhere near that fast has destroyed cars in the process. These are my sincere recomendations: 1 buy a 1/18th car get a mamba brushless comp X buy a 3s lipo pack (you can get an excellent one for 50-60) it will go very fast probably over 70 it will be fun as hell, total investment probably less than 500$, or 2 buy a 1/8th onroad (serpent) and one of those badass .28 truggy motors it may take a little work to fit it but it should fit, topspeed 80+ this would be the more expensive route but you could recover your investment easier if you decided to sell.

Dafni 05.24.2006 09:26 AM

Quote:

Originally Posted by extremexmods
How fast could a 1950 go? I want to hit at least 125 mph. What would a 2230 do to this car if I could fit it in, obviously gearing way longer than a 1 to 1 ratio? I absolutely can't afford lipo. Should I get extra for a high amp? I would like an esc with reverse also.


:035:

Serum 05.24.2006 11:40 AM

Give the guy a brake boys!

Appearantly, he is going for a speedrecord. and he really can't do without our help, that's a fact.

If you want the ultimate speedrecord, get a shaft driven car, and be sure you go the skills to make your own motormount. No matter what 1/10th scale you get, the 2240/2250 will RIP it's drivetrain into pieces. (small price to pay for the speedrecord)

if i was you, i would start with getting a 1/10th on 6S lipo and see what brushless is all about.

I don't want anyone post anything negative towards extremeXmods, and a personal note to extremexmods; please do you reading, and more important, try to understand what the people are telling you.

This forum is about helping people out. Abviously Extremexmods hasn't decided what to buy. and he neither has got any idea what BL is all about;

So, my advise; get a 1950 on 6S lipo to put in your 1/10th scale (or even a wanderer XL would do on a 15020 warrior.)

Get it and be amazed by it's power Boy!


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