What would this combo do in a Hyper 7?
 

Quark Monster Pro 125B, Plettenberg BigMAXXimum, 16 IB 4200. Is this possible? Run times? Speeds? Gearing? Help me out. Thanks.

It's possible, but it's more than enough power. The Maxximum and 12 cells is all that's need to have a buggy that can beat the nitros. If you plan on racing, then Lipos would be a better choice.

Another motor choice is the Neu 1512 2.5D. It would be easier to gear in a Hyper 7 than the Maxximum since it has a lower kv.

I won't be racing. I work on race days :035: :012: . The most important thing to me is run time. My goal is 30 min. runs with 40 mph speeds. I don't need anything faster. But it would be nice. I want a set up that will be trouble free. I won't have to worry about heat or anything. I would like to avoid Lipos. What do you guys think? I have read a lot of forums. And they are all aimed towards speed. Some were only getting 10 min. runs. Granted they were flying but I will be playing with it in the back yard or local skate park when I have free time. I just don’t have the time for nitro and my neighbors don’t like all the noise.

If you want long runtimes, then a lower kv motor is probably a better choice. Lower kv means more turns (windings) which means less current and better runtimes. They generally have more torque so you can gear up (within reason) if you need to go faster. And yes, lipos would be a wise choice - they are lighter so there is less dead weight for the motor to pull around than NiMHs. At an estimate; with 6,000mAh lipos, you should be able get about 30 minutes, 8,000mAh to be safe.

An 8000mah Lipo sounds ok. What voltage? What motor would give me what I want? I really want to use the Quark Monster. I like its features. I don't want to have any problems. If I have to spend a little more to get a better product then I will. I also know nothing about buying Lipos or maintaining them. But I will ask those questions another time. I don't want to loose focus. So............ 8000mah....... Quark Monster........ Now, motor and gearing.

Well, if you're going with the Quark, I'd say go no higher than 5s. It is supposed to do 6s, but some have had problems with that voltage. 5s doesn't lend it self for even weight distribution though, which is why most buggy people go with even numbered packs, unless you plan on having the batteries on one side.

Gearing: I'm assuming you're using the stock 46T spur? Most go with 14T to 16T (and maybe a little higher, depending on the motor).

Motor: A Neu 1515 2.5d would be good on 5s for about 40mph. A Neu 1515 1y would work on 4s to maintain the 40mph range.

To get an idea of what different gearing, voltage, and motor combos can do, try out this speed calculator.

How many volts?

What do you mean? How many volts in 5s? That's 18.5v (3.7v X 5 cells).

I think you oughta take a look at mine ! Proof is in the vdo ! and the pics !

Gorilla Maxx battery straps,
Team FCR motor mount
2 x 8000mah lipos
Plettenberg maxximum with fan hp220
Quark 125B
Ubec

That should be enough for you to decide !

Scy

how many volts should i run? where can i see the video?

http://s112.photobucket.com/albums/n...gAnch=imgAnch1 thats his hyper on 4s lipo (14.8volts)

2 x 8000mah lipos
Plettenberg maxximum with fan hp220
Quark 125B
sounds perfect. what are the run times? what is your gearing? can you give me more details on the batteries? i dont know jack about lipos.

Runtimes in race condition are about 35 to 40 mins non stop. No overheating but you need to use a fan on the quark 125b and a heatsink. I use a 10 or 11t pinion. Hardened steel of course.

The lipos are from Maxamps.com and cost around 100$ each, they are 8000mah and 7.4v. I wired them in series to get a total of 14.8v and 8000mah. I find the weight pretty respectable as well !

They need to be charged using a lipo compatible charger, like a duratrax ice. (the one I use...)

I have my quark 125b for sale, including the heatsink you see in the pics that the post before showed you. I totally forgot to include the link earlier. Its got a nice heatsink and to my knowledge is still under warranty for another 3months... (6months total)

If you want to reach me about that, you can pm me or send me an email at teamfcr at excite dot com.

Thanks !

Scy

The Mamba Max esc is also rated for 4s and 100A draw, so it would be another good option for you and would not require an addit HS, and possibly not even a fan if the buggy isn't too heavy.

IMO I would pick up a MM Esc, a Nue motor, a ubec and some 8000 mah lipos (4s would be good) from Mike.

I agree that the mamba max esc is probably a better choice right now. But motor wise, nobody proved to me that the neu motors were better than the plettys. And the plettys look nice and come with a fan... which makes a nice jet engine noise at high speed... Thats gotta count for something !

Its 4 pole as well so, tons of torque.. (thats how its been explained to me)

You could get all the stuff from Mike yep, agreed. I've heard only good stuff from him. There's also Jamie at starluck rc... hes got really good stuff as well !!

Scy