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Old 04-22-2014, 01:08 PM
  #2641  
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Isn't the "c" rating more or less just a function of internal resistance?
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Old 04-22-2014, 01:38 PM
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Less droop in the front and the ballooning that you are getting is normal for truggies. Dont treat it like your buggy. You can be more aggressive with this truck.
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Old 04-22-2014, 01:50 PM
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Hey guys, What HW motor would you recommend for this beast?
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Old 04-22-2014, 02:23 PM
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Originally Posted by mechanic_dan
Less droop in the front and the ballooning that you are getting is normal for truggies. Dont treat it like your buggy. You can be more aggressive with this truck.
Yea when I first set it up just screwed in the droop screws all the way (AE screws button head down with adjustment hole in the top) Then when i went back to measure they were dead on the recommended shock lengths for stock.

I'm hoping the local BMX track will be open today and not have many bmx riders in the way. Need to practice flight control. (aka backflips)
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Old 04-22-2014, 06:59 PM
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Originally Posted by akshayp14
mah doubles up when u connect two batteries in parallel, voltage doubles up when u connect two packs in series.

C rating remains the same.

"Amp rating" doubles in parallel, mAH doubles when you connect in parallel voltage remains the same
3s 50c 5000mAH in parallel w/ same pack 3s 100c 10000mAH

"Amp rating" remains the same in series, mAH remains the same, voltage doubles in series.
3s 50c 5000mAH in series w/ same pack 6s 50c 5000mAH

Originally Posted by Mizchief
Isn't the "c" rating more or less just a function of internal resistance?
There is no true scale to rate "C's" it's, to each his own, by manufacturers.. so yes C rating is impacted by IR, but it is not solely based on it. C rating is the maximum safe discharge rate assigned by the manu or reseller.

Last edited by 8ight-e; 04-22-2014 at 08:11 PM.
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Old 04-22-2014, 07:03 PM
  #2646  
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I love this truggy more every time I drive it. Was able to run it on the bmx track. While it's a true race truck, it's also the best basher I've ever driven. When trying to drive the whole track in a circuit you really appreciate it's ability to stay on it's wheels when you have to hit some of those big jumps blind.

There was a really fun section that is supposed to be whoops/rollers for bmx, but was a nice step-up to table top, then a 6 pack of doubles followed by another step-up for the truggy.
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Old 04-22-2014, 07:13 PM
  #2647  
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Originally Posted by 8ight-e
"C rating" doubles in parallel, mAH doubles when you connect in parallel voltage remains the same
3s 50c 5000mAH in parallel w/ same pack 3s 100c 10000mAH
No. C rating doesn't change in either parallel or series. The amp discharge capability is doubled if you run 2 of the same pack in parallel, but that doesn't change the C rating.
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Old 04-22-2014, 07:49 PM
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Originally Posted by jhautz
No. C rating doesn't change in either parallel or series. The amp discharge capability is doubled if you run 2 of the same pack in parallel, but that doesn't change the C rating.
The C rating of the two packs separate doesn't change, but the two parallel packs have an effective double of the rated output. If one pack on it's own is rated for 50 and the other pack is rated for 50 the combined rating (the two packs are now sharing the load)


Edit: I see what you are saying.. yes.. you are correct, its just how we are saying it.. 50c are the packs ratings *example. This doesn't technically change but with two packs it is doubling how many amps can be drawn. 50c x 5000 = 250a 50c x 10000 = 500a

EDIT2: I fixed how I worded that above.. :P

Last edited by 8ight-e; 04-22-2014 at 08:12 PM.
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Old 04-22-2014, 07:57 PM
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How is the stock setup on dusty bumpy big jump outdoors? I'm going for a full day of testing in the morning and looking to see what people have changed to possibly try for myself if I run into problems. Also shock length...120 and 135? I have it on the setup station now. Going -2 all around for camber and 1out for toe as a base. Starting at 10/10/5 diffs other than that all per manual. What about the steering stops, are people running those screws? Do all brands run higher diff oil than a buggy or is that tekno specific suggestion? Is that because of the bigger tires or what? Any setup sheets anywhere? I can only find one from anybody on petit
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Old 04-23-2014, 12:32 AM
  #2650  
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Originally Posted by 8ight-e
"Amp rating" doubles in parallel, mAH doubles when you connect in parallel voltage remains the same
3s 50c 5000mAH in parallel w/ same pack 3s 100c 10000mAH

"Amp rating" remains the same in series, mAH remains the same, voltage doubles in series.
3s 50c 5000mAH in series w/ same pack 6s 50c 5000mAH



There is no true scale to rate "C's" it's, to each his own, by manufacturers.. so yes C rating is impacted by IR, but it is not solely based on it. C rating is the maximum safe discharge rate assigned by the manu or reseller.
I'm not sure whether connecting two packs is usually parallel or series ... If I were to connect two packs (typical layout two plugs from esc connecting to two separate packs), would my run time double (i.e: 5000*2 = 10000mah)??
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Old 04-23-2014, 02:34 AM
  #2651  
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Usually the two packs are connected in series. That means that from two 2S 50C 5000mAh packs you get a 4S 50C 5000mAh batery unit.
Series connection means that:
the negative wire from the ESC is connected to the negative pole of the first pack,
the positive pole from the first pack is connected to negative pole of the second pack and
the positive pole of the second pack is connected to positive wire of your ESC.
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Old 04-23-2014, 03:08 AM
  #2652  
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Originally Posted by RKK_J
Usually the two packs are connected in series. That means that from two 2S 50C 5000mAh packs you get a 4S 50C 5000mAh batery unit.
Series connection means that:
the negative wire from the ESC is connected to the negative pole of the first pack,
the positive pole from the first pack is connected to negative pole of the second pack and
the positive pole of the second pack is connected to positive wire of your ESC.
Oh ok. I dont know why I always thought id get added mah and a longer run time ... my bad.
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Old 04-23-2014, 05:31 AM
  #2653  
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Took my ET48 out for the first time yesterday to bash around the house for a bit. I was really surprised how fast it was with the T8 2250 and a 15t pinion. I'm running a totally box stock setup to get a baseline at the track next week but it's amazing how nimble such a big truck can be! I'm not sure how its going to be on the track but I think I might need to go up to yellow rear springs, the greens felt a little soft but things change a lot from the back yard to the track. In case anyone was curious I'm also running an RX8 2, Protek 130t (excellent servo at 7.4 volts, but I am worried about it after reading all the comments), Vant 7500 4S, super soft AKA Cityblocks and a 4PL radio. I bought the ET48 only because I have been racing the SCT410 for over a year and I have only changed out the axle stubs and carrier bearings (shock and diff oil of course), everything else is still tight. Teknos are absolute tanks!
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Old 04-23-2014, 06:45 AM
  #2654  
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Originally Posted by mamdot91
I'm not sure whether connecting two packs is usually parallel or series ... If I were to connect two packs (typical layout two plugs from esc connecting to two separate packs), would my run time double (i.e: 5000*2 = 10000mah)??
This should help you understand...
Attached Thumbnails Tekno ET48 Thread-series-v-parallel.jpg  
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Old 04-23-2014, 11:27 AM
  #2655  
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Buildin my new kit and the caphead screw the holds the rear turnbuckle to the shock tower has no threads....ugh
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