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-   -   Need some lipo size help here (https://www.rc-monster.com/forum/showthread.php?t=10900)

BlackedOutREVO 03.23.2008 01:19 AM

Need some lipo size help here
 
Ok guys, I need a lipo thats 85 x 31 x 18mm

Or dang close, For my 18R im going to get the novak BL system, and im going for the 8.5 turn, which is 9000 KV, so its power hungry. Any input would be good, I need the highest MAH possible, I NEED 1000 MAH plus....

So post what you guys know of!

I have found these, but there RX packs, so IDK what the C rating is on it

http://www3.towerhobbies.com/cgi-bin...?&I=LXRWE8&P=7


And this one is 18C, which isnt bad, but iffy

http://www3.towerhobbies.com/cgi-bin...?&I=LXRVR1&P=7

bdebde 03.23.2008 11:15 AM

These are close

lutach 03.23.2008 12:31 PM

Try: www.hobbycity.com

They have some nice 30C batteries that fit the size.

BlackedOutREVO 03.23.2008 02:27 PM

The limn look nice, nice mah to!

im looking on the site, found these so far

http://www.hobbycity.com/hobbycity/s...idProduct=6305

http://www.hobbycity.com/hobbycity/s...idProduct=5263

http://www.hobbycity.com/hobbycity/s...idProduct=6472

The 3rd link, I could buy 2 of them, and run them in 2P

http://www.hobbycity.com/hobbycity/s...idProduct=6519

http://www.hobbycity.com/hobbycity/s...idProduct=6426

Thanks guys! And ignore all the links, there more for me to remember, but if you want to help me decide, feel free =)

BlackedOutREVO 03.25.2008 09:16 PM

Ok, I have another question here. How should I do this?

Buy a 8.5 (9K KV) and run 2s lipo (64,800 RPM)
Buy a 10.5 (7,300KV) and run 2s lipo (54,200 RPM)
Buy a 13.5 (6K KV) and run 3s lipo (66,600 RPM)

Which way should I do this? Im running a mini on a full size track, so it needs RPM, and from the beta testers, even the 9K KV motor runs real cool because its 380 can.... But doing a low KV, high voltage, im thinking I could get more run time off a lower MAH lipo?

lutach 03.25.2008 09:32 PM

Quote:

Originally Posted by BlackedOutREVO (Post 157639)
Ok, I have another question here. How should I do this?

Buy a 8.5 (9K KV) and run 2s lipo (64,800 RPM)
Buy a 10.5 (7,300KV) and run 2s lipo (54,200 RPM)
Buy a 13.5 (6K KV) and run 3s lipo (66,600 RPM)

Which way should I do this? Im running a mini on a full size track, so it needs RPM, and from the beta testers, even the 9K KV motor runs real cool because its 380 can.... But doing a low KV, high voltage, im thinking I could get more run time off a lower MAH lipo?

I ran my Trinity N80 (7800Kv) on 3S lipos and it was great.

BlackedOutREVO 03.25.2008 09:52 PM

So maybe a 10.5 (7,300 Kv) on 3s lipo?

lutach 03.25.2008 09:58 PM

Patrick mentioned in rcgroups that the new magnets in the CM36 motors are rated for 100,000rpm. If so the 7700Kv motor is looking good for somethings I might do.

BlackedOutREVO 03.25.2008 10:00 PM

I want novaks BL system.. On road racing is sensored or no go IMO.....

And 2nd, your talking about 10th scale BL systems, I am talking for a 18th scale

This BL system

http://www.teamnovak.com/products/br...x.html?aid=449

azjc 03.25.2008 10:10 PM

I suppose things have changed in past couple of years, I used to have a RC18 that I had a Mamba 25 esc with a 1800 3 cell and mamba 6800 motor, I did run it with larger wheels 1/10 scale sedan foams and when I would get done with a run I could start a forest fire....:lol:, I eventually fried the esc I now have the truck in my garage gathering dust

BlackedOutREVO 03.25.2008 10:16 PM

Well for one, the mamba motor is 180, or something like that

the novak is 380...... I just dont know what the RPM limit would be

lutach 03.25.2008 10:16 PM

Quote:

Originally Posted by BlackedOutREVO (Post 157657)
I want novaks BL system.. On road racing is sensored or no go IMO.....

And 2nd, your talking about 10th scale BL systems, I am talking for a 18th scale

This BL system

http://www.teamnovak.com/products/br...x.html?aid=449

My fault :lol:. That looks nice and it should be really good. The new Mamba Micro Pro will be out soon http://www3.towerhobbies.com/cgi-bin...&I=LXURX8&P=SM. I would look into the Hyperion YC22S-6000 or the Y22L-5000 with Mamba Micro Pro should be a nice combo. If you really want 9K plus Kv motors that packs enough power to drive 10th scale, I would give the following some thought with the Sidewinder Sport: Mega ACn16/15/1 (9200Kv, 6 pole, tons of torque and power), Neu 1105/1Y (10500Kv), 1105/2D (9700Kv), 1110/1D (9200Kv). I have the YC22S-5000 right now in my MLST ad it's a blast.

lincpimp 03.25.2008 10:41 PM

I would run the lowest kv on 3s. As long as you can fit the batterys in and it does not weigh too much. I would like to see how good the novak system is. I have a feeling it will not be as good as a quark 33 with a hyperion y22 l or xl can motor. Plus the quark can handle 5s. That would be my choice for a high power mini setup. Unless neu make a small high powered motor!

BlackedOutREVO 03.25.2008 10:50 PM

Remember guys, im full on racing. Sensored is the only way to race on road! Period, I tried a MM with my current set up, and it was no where near as nice as my LRP TC Sphere, and the R1PRO cant make a start with out cogging with a 10.5, mod was OK

Id rather run on 2s, but im trying to get the smallest batt, so I can put my RX on the batt side, but 3s just gets taller, which is no problem really. Im NOT going for a speed machine, just a super fun lil racer to play with on practice days, seeing a 8 inch long car motor the F out of a gas car will be priceless LOL.... So its not tons of power, just want to try out the sick new stuff, especially when I know many many team novak drivers ;)

Modified TC they run a 3.5, or 3.0, which is around 11,000 KV..... So yeah, My bashers I agree with you guys, but in TC racing its different..

BlackedOutREVO 04.15.2008 10:46 PM

Back to this guys

I know you all as low KV, and high voltage, which I want to do, but cant choose here

Do you guys thing a TrueRC 1500MAH 3s 15C pack is enough for my application, or no? I want max performance, with a small size, a 25C high mah thunderpower pack that is tiny is 75 bucks...

A normal 6c pack is 102mm, by 30

I need it small as possible to fit my RX on the batt side so I dont have to stack the electronics on one side...

So Can anyone help me find atleast a 20C pack over 1000mah? under, or close to 85 x 31 x 18mm that doesnt cost a ton of money? 40 bucks for a little lipo is on the high side IMO

Thanks

BlackedOutREVO 04.16.2008 12:13 AM

Alight, heres a good looking pack

http://www.b-p-p.com/proddetail.php?prod=ab_H800

20C, but the MAH is only 800, so I could do this

6,000 KV motor on 800MAH 3s lipo

Or a 7,300, or 9,000 KV motor with a 2s lipo, and hook them up in series, so its 1600MAH

What sounds like a better deal? I need the run time, but 60 bucks for two 3s packs is insane!

83gt 04.16.2008 07:08 AM

I use the TP2000 3s in my MLST with a 7000kv motor. Loads of fun. That battery has held up great for 2 years as well. Worth every penny IMO. Is that battery too large for your app ? If so, i'd go with the TP 1320. 800mAh seems kinda small. If you did them up 2p though, you'd have 1600, which would be decent.

J.

BlackedOutREVO 04.16.2008 10:14 AM

Yes, I need a batt thats around 31mm wide, the hyperion is 34, but thats not bad

Only thing is, is 2p will be for 2s since I highly dont think the bottom deck to the top is over 20mm, so I will probably have to shim the top deck, but thats no problem

rschoi_75 04.16.2008 12:14 PM

I use this in my 1/18th rides:
http://2dogrc.com/ecommerce/os/catal...nt-p-2177.html
Its a little longer than what you are asking for, but very close. If that is too long, then try this:
http://2dogrc.com/ecommerce/os/catal...nt-p-2175.html

Out of curiosity.... will your track allow 3s? Are you going to be running with other 18R's or trying to race in a 1/10th class with your 18R?

I like the look of the new novak motors, but the kv ranges have me worried. The kv's seem way too high for actual 1/18th sized tracks. I'm currently running a Hacker 4200kv motor in my rc18r, and its plenty for a normal sized 1/18th track. People try to run mamba 8000kv's on the track and they are all over the place. You know a noob has shown up when he busts out the 8000kv motor for a track that only has a 25 foot straight...

BlackedOutREVO 04.16.2008 06:52 PM

Those look good, but a bit to wide, im really looking for a short narrow pack, I dont mind buying 2 of those hyperion packs and wiring them in 2P.. But a good choice for sure!

When I race, it will be with 6 cells and a stock 18R motor, this is to have some cheap fun with while my TC is charging. I race 10.5 or MOD sedan, so no on the racing 18R with them lol

I love the range of KV, My back straight is 164 ft!!!! Y E A H ! NEED motor lol my track is darn big, and theres a perfect sweeper at the end of the straight, so motor is def needed, and with the mongoose being a 380 can, it should be a torquey motor, So im hoping I can gear it pretty high, in case I need more speed

rschoi_75 04.16.2008 07:52 PM

Ok, that makes sense.

How about this one. Its pretty narrow:
http://epyaya.com/product_info.php?c...oducts_id=2531

BlackedOutREVO 04.16.2008 09:40 PM

Man, how do you know of all these LOL?

I like that pack! Id run that in 1P, so I think id do 3s, its illegal any way with lipos, so might as well have a efficient system right?

I think I might try those out! Thanks!

kulangflow 04.16.2008 10:22 PM

rschoi is the king of 1/18th scale from what I've read ...

BlackedOutREVO 04.16.2008 10:24 PM

Possibly

I see him posting on one18th alot, im Money is the Key there BTW

hoober 04.17.2008 07:54 AM

Does this help?

http://www.progressiverc.com/Research.html

Sammus 04.17.2008 08:28 AM

Quote:

Originally Posted by lincpimp (Post 157680)
Unless neu make a small high powered motor!

Neu 1100 series are pretty close to 280 size - theyre 29mm diam. I was thinking of getting an 1107/1.5Y for my MLST2, and maybe an 1105 for the mini-t.

Probably wont have a whole lot of room for the gearing with a big motor like that though, and thats assuming the motor holes line up the same.

lutach 04.17.2008 08:33 AM

Quote:

Originally Posted by Sammus (Post 163976)
Neu 1100 series are pretty close to 280 size - theyre 29mm diam. I was thinking of getting an 1107/1.5Y for my MLST2, and maybe an 1105 for the mini-t.

Probably wont have a whole lot of room for the gearing with a big motor like that though, and thats assuming the motor holes line up the same.

With the 54T spur, the smalled I can fit with the Mega ACn16 is a 27T pinion. I didn't try my Neu 1107, but you can try a 29T or 30T pinion.

lutach 04.17.2008 08:55 AM

What about this one: http://www.rcmodelland.com/index.php...at0=15&lang=en

I have a 3S 2900mAh from them (They don't carry that anymore) and it is pretty good. Now I have a 3S 1600mAh from Kong Power and it is pretty small and can fit an 18R. The only problem is that Kong Power doesn't list them anymore in their site and Air Thunder has them, but only is 2S http://www.airthunder.com/1600mah74v...tterypack.aspx.

lutach 04.17.2008 10:40 AM

Quote:

Originally Posted by BlackedOutREVO (Post 157054)
The limn look nice, nice mah to!

im looking on the site, found these so far

http://www.hobbycity.com/hobbycity/s...idProduct=6305

http://www.hobbycity.com/hobbycity/s...idProduct=5263

http://www.hobbycity.com/hobbycity/s...idProduct=6472

The 3rd link, I could buy 2 of them, and run them in 2P

http://www.hobbycity.com/hobbycity/s...idProduct=6519

http://www.hobbycity.com/hobbycity/s...idProduct=6426

Thanks guys! And ignore all the links, there more for me to remember, but if you want to help me decide, feel free =)

http://www.hobbycity.com/hobbycity/s...idProduct=6264

skellyo 04.17.2008 11:11 AM

Quote:

Originally Posted by Sammus (Post 163976)
Neu 1100 series are pretty close to 280 size - theyre 29mm diam. I was thinking of getting an 1107/1.5Y for my MLST2, and maybe an 1105 for the mini-t.

Probably wont have a whole lot of room for the gearing with a big motor like that though, and thats assuming the motor holes line up the same.

The 11xx series of Neu motors has 16mm mounting holes, so they'll line up just right.

Also, FWIW, an 1105 would be way overkill in a Mini-T. It's not too hard to even run a Mamba motor in a Mini-T without temp issues. Heck, I've run a Mamba 6800 in my RC18T without temp issues...gearing is a huge factor with those little motors.

skellyo 04.17.2008 11:17 AM

The Apogee 1500's linked earlier in this thread should fit in the 18R without issue. If for some reason you buy a battery that is a little too wide though, you can always shave down the lip on the chassis and fabricate a lip extending from your battery strap to hold it in. Or just pony up the $ and buy a Diggity Designs or Exotek chassis for more room for a Lipo pack.

BlackedOutREVO 04.18.2008 01:42 AM

Did you read my first post LOL? I already have the R18 chassis here, I just need the rest =)

the pack cant be more then 80 mm, I need 26mm for a RX, which will go on the batt site, I hate stacking stuff, or putting stuff on the top deck, so the motor, esc, servo on one side, batt and RX on the other

The link to all the lipos is AWESOME! Thanks! BIG BIG help, now to find the perfect pack

Thanks a TON for the help guys!

BlackedOutREVO 05.16.2008 12:46 AM

Ok, back for more LOL

The Mongoose keeps getting bumped back, so I am having second thoughts here, get a Mamba micro pro, and a NEU 1105 or so

But with the NEU, id expect my car to be a rocket ship, and I have a few concerns on that, one being it wont be smooth throttle control, and 2 it will be sucking juice

I want to be able to motor the MOD TC's, and a MOD TC motor is 10,000 KV plus, on 2s lipo, so what is going to give me the crazy speed like that? I might be able to find a Tekin R1PRO for cheap, and do that instead of a mamba, but IDK if it will be smooth or not

Any imput?


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