russruss123 Posted March 26, 2013 Share Posted March 26, 2013 so i see these threads popping up a lot so thought i would start one . converting to brushless but dont realy know much about brushless systems . so im gonna be buying an esc and motor soon and dont realy know the crack with all these kv numbers and amps etc. i want my 1/8 buggy to be fast but not so fast im gonna be ripping tyres off every trip out . with plenty of torque. idealy from what i have already read 4s looks to be a good start point . so wat would be a good combo to be looking at ? would like to be waterproof if the price is right . any ideas guys and gals ??? Quote Link to comment Share on other sites More sharing options...
NOFX Posted March 26, 2013 Share Posted March 26, 2013 Hi. Have a look on the hobbyking site. Suicideniel'll be on this like a rash Quote Link to comment Share on other sites More sharing options...
russruss123 Posted March 26, 2013 Author Share Posted March 26, 2013 i been on there m8 but aint realy got a clue wat to get pal would probably end up with a boat motor lol another question is how long will 5000mah lipos last as the ones i use for my crawler last 3-4 hours ? Quote Link to comment Share on other sites More sharing options...
lilllad83 Posted March 26, 2013 Share Posted March 26, 2013 I get anywhere between 20 and 45 mins from my 5200's it really depends how hard u are on the throttle. I use a 120a esc 2-6s with 2200kv 4 pole motor in my buggy and is great around the track and for bashing. My son uses an 80a esc with 1950kv motor and keeps up fine (same chassis) so it really depends how you gear and how deep your pockets are. Quote Link to comment Share on other sites More sharing options...
russruss123 Posted March 26, 2013 Author Share Posted March 26, 2013 are these any good ,, HOBBYWING EZRUN WP SC8 Waterproof 120A Brushless ESC Speed Controller SL564 wat size motor can i run with one of these with 4s ? Quote Link to comment Share on other sites More sharing options...
cyronn Posted March 26, 2013 Share Posted March 26, 2013 (edited) Is this going in your hyper 7? If so, search the forum. There have been loads of hyper 7 conversions recently (2-6months old) with these questions answered in the threads of other people. Edited March 26, 2013 by cyronn Quote Link to comment Share on other sites More sharing options...
russruss123 Posted March 26, 2013 Author Share Posted March 26, 2013 is this one ok http://www.funshobby.com/index.php/product-484-1%3A8+RC+OFF+ROAD+BUGGY+COMBO+INCL.TENSHOCK+X802+V2+%2BHOBBYWING+XERUN+BRUSHLESS+150A%28FREE+SHIPPING%29.html Quote Link to comment Share on other sites More sharing options...
nitroracerdan Posted March 26, 2013 Share Posted March 26, 2013 More than okay mate, just got the same Esc for my truggy project and they get very good reviews for their price, also got a tenshock motor too which seem very good. Funshobby are a great company, i recieved my order last week from Hong Kong overnight! They use DHL for the free shipping and mark the price down so you don't pay import tax Quote Link to comment Share on other sites More sharing options...
NuttyProfessor Posted March 27, 2013 Share Posted March 27, 2013 I use a hobbyking 150a esc and a leopard 2650kv motor, motor is over a year old and still pounding on. Has severe speed when you fancy some wallop but still manageable Quote Link to comment Share on other sites More sharing options...
russruss123 Posted March 27, 2013 Author Share Posted March 27, 2013 I went for the hobbywing 150a and a tenahock 1900 kv motor. Just need lipos now is 4s 40c the ones I require? Quote Link to comment Share on other sites More sharing options...
Tug Posted March 27, 2013 Share Posted March 27, 2013 The C rating should be as high as you can afford, and aim for at least 5000 mah. 5000 divided by 1000 = 5A. 5 x 40 = 200 Amps. More than enough for a buggy. Quote Link to comment Share on other sites More sharing options...
russruss123 Posted March 27, 2013 Author Share Posted March 27, 2013 Awesome thanks for sorting that one for me Quote Link to comment Share on other sites More sharing options...
DeadMeatUK Posted March 27, 2013 Share Posted March 27, 2013 I'm using a Turnigy Nano-Tech 5000mA 35/70c and has been fine so far. Would have got a higher c rating but that's all HobbyKingUK had in stock. So happy with it that I'm going to order another one after Easter Quote Link to comment Share on other sites More sharing options...
Nitroholic Posted March 27, 2013 Share Posted March 27, 2013 The important thing is matching components, so they all work together A motor should have a max current draw listed in it's spec. The ESC shuold be able to cope with that and more for a bit of headroom. They have a high burst rating for shock loads, but your ESC won;t last long if it has to give 100% all the time. Then you make sure your batteries can supply what your ESC can draw and your motor needs. If your ESC can pull 150A, then your batteries have to be able to supply that or you could end up with puffed and dead LiPos It's like a jigsaw puzzle.....only without a picture to follow. I went for a Leopard 4082 2000KV motor for my truggy. The specs on this show it can handle 25V and 140A. So I went for a 150A ESC...the XERun150A. That can take 150A constant plus 950A burst, so is bigger than the motor. Then I went for 5000Mah 40C batts, which can handle 200A ...which exceeds the constant supply the ESC can handle and exceeds the need for the motor. Then it's just a question of gearing it right Quote Link to comment Share on other sites More sharing options...
Rosc0PColtrane Posted March 27, 2013 Share Posted March 27, 2013 Surely it's the motor that draws the current, the esc has to be able to handle it and the batteries need to supply it? Quote Link to comment Share on other sites More sharing options...
suicideneil Posted March 27, 2013 Share Posted March 27, 2013 ^What he said; the motor draws the current, the esc just has to be able top 'pass' it along without cooking in the process, same too with the batts ( that's the simplified explanation anyway ). It's a technicality but an important one... *burn him!* Quote Link to comment Share on other sites More sharing options...
russruss123 Posted March 27, 2013 Author Share Posted March 27, 2013 so i ordered a 150a esc and a 1900kv motor. so nano tech 5000mah 35-70c should be ok should i get a 15 t pinion or a start Quote Link to comment Share on other sites More sharing options...
DeadMeatUK Posted March 27, 2013 Share Posted March 27, 2013 Nano-Tech batteries was recommended to me but I've only charged it 5 times so early days.... If they have stock, I would recommend the 45/90c to increase the safety margin, only $10 more! Quote Link to comment Share on other sites More sharing options...
russruss123 Posted March 28, 2013 Author Share Posted March 28, 2013 can i use some xt60 connectors for this application or will i require different ? for $10 extra i will try the 45/90 c lipos Quote Link to comment Share on other sites More sharing options...
suicideneil Posted March 29, 2013 Share Posted March 29, 2013 can i use some xt60 connectors for this application or will i require different ? for $10 extra i will try the 45/90 c lipos I would go for the XT90 connectors or the EC5 connectors- better current handling as they use larger bullets inside. Depends if you prefer blue or yellow really- the xt90 are neater looking by a little harder to solder maybe, the EC5s you solder the wire to the bullet first, then insert it into the plastic housing. Quote Link to comment Share on other sites More sharing options...
barnetbasher Posted March 29, 2013 Share Posted March 29, 2013 xt60s are hideous....get any lipo and you'll have to chop down the wires to fit those poxy bullets... EC5s are gorgeous...you can store the lipos anywhere and they cant short....and you can connect/disconnect them in the dark/with one hand....sorted Quote Link to comment Share on other sites More sharing options...
russruss123 Posted March 29, 2013 Author Share Posted March 29, 2013 Cheers guys went fir the ec5 connectors they look better than the xt 90 also they look easier to solder. Quote Link to comment Share on other sites More sharing options...
russruss123 Posted March 29, 2013 Author Share Posted March 29, 2013 how long run times could i expect from a 5000mah 45-90 c nano tech ? Quote Link to comment Share on other sites More sharing options...
suicideneil Posted March 30, 2013 Share Posted March 30, 2013 how long run times could i expect from a 5000mah 45-90 c nano tech ? How long is a piece of string? It depends on a lot of things- gearing, model weight, terrain, ambient temps, throttle smoothness & usage- anywhere from ~20 minutes up to nearly an hour if you don't drive like a loon.... Quote Link to comment Share on other sites More sharing options...
russruss123 Posted March 30, 2013 Author Share Posted March 30, 2013 lol i drive reckless how it should be done mate . cause i got a 1900 kv motor would i be better going 5s or 6s even . or should i go 4s with a bigger pinion say 19 t or bigger . Quote Link to comment Share on other sites More sharing options...
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