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Old 08-04-2008, 11:16 AM   #1
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Default nimh battery capacity vs weight and 1/12th

specifically in my 12R5 i am running some trinity EP4600 and it looks like my final car weight will be between 900-920g. i think the class minimum is 880. i am running a plastic geared servo, 16awg wire, spektrum 3100 rx. about the only thing that i can think that might add weight is the associated chassis protector tape and the extra 15g from running brushless.

i saw somewhere on the forums that some people's 1/12 are under 800g. how much extra weight am i gaining from running 4600's instead of 4200's or 3800's?
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Old 08-04-2008, 11:23 AM   #2
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I know that in our local spec TT-01 class we had a guy put in a venom 1800 and was underweight and put in EnerG 4600 and was way over weight so i dont know if it is the brand, the chemicals they put in or what but it was totally different.

Honestly, 12th scale cars can weigh from 800 grams to a whopping 930 grams so if you are just 20 grams above weight dont worry about it. Just drive a clean line, hold your line and force someone to work to get around you and trust me you will win races.
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Last edited by #88driver; 08-04-2008 at 09:50 PM.
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Old 08-04-2008, 11:37 AM   #3
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I don't know of any 12th cars at the moment that are actually under weight ready to run with brushless. It's pretty common to have a car that's well over the minimum weight.

A light weight speedo and motor will be a huge help in the weight department.
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Old 08-04-2008, 12:06 PM   #4
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i am running the novak mongoose speed control and novak 17.5. the mongoose is technically meant for 1/18 or smaller so i am pretty sure its ligher than the GTB possibly even the 4cell version.
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Old 08-04-2008, 12:43 PM   #5
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Default Uk weight

In the Uk weight is 800 gms not 880.
My 12R5 weighs in at 842 ready to go.Using Shoo batteries they weigh 40 grams less than most other batteries.
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Old 08-04-2008, 01:02 PM   #6
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Keys to low weight...

16g wire, and as little as possible. No receiver pack - not needed for anything over 5.5BL or 12T BR. Aluminium screws. Lightweight bodyshell. 9602 or similar servo. Small tyres (42/45mm dia).

My car weighs 848g with Energ 4600s. Our National Champion's car weighs over 870g, he regularly thrashes me at our Club! Don't sweat it, weight isn't the issue, driving ability is. HTH
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Old 08-04-2008, 09:09 PM   #7
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Choose here!
you can get what you want!
http://www.rc-mall.net/productlist_a...d=battery_lipo
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Old 08-05-2008, 09:17 AM   #8
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Quote:
Originally Posted by SlowerOne View Post
Don't sweat it, weight isn't the issue, driving ability is. HTH



I agree, my brushless car is at 911g and to be honest it could do with shedding a wee bit of weight but then i can't be bothered as it runs brilliantly and the only thing slowing the car down is me and my knackered batteries. When you start to get faster then look at loosing a bit of weight but just remember this weight equals downforce which equals grip, "in a manor of speaking"

Good luck
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Old 08-05-2008, 11:16 AM   #9
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i really should be practicing instead of talking about all this little stuff. my driving is barely worthy of a T-maxx.
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Old 08-05-2008, 12:38 PM   #10
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why do you have a chassis protector on it??? you can run 1/12th on asphalt???
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Old 08-05-2008, 12:49 PM   #11
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yeah. we sugar coat the track with grape soda. the cars drift a little like 1/8 nitro onroad. atleast thats what it looks like. its been 2 months and i still havent put my car down on the track.
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Old 08-05-2008, 02:01 PM   #12
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Thats awesome i didn't think the cars are big enough to drive on asphalt. I would try to get people to do it at my track but are track is a bowl.
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Old 08-05-2008, 02:49 PM   #13
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Quote:
Originally Posted by beta bob View Post
Thats awesome i didn't think the cars are big enough to drive on asphalt. I would try to get people to do it at my track but are track is a bowl.
12th on asphalt is the bomb. The tire wear isn't that cool but the driving is.
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Old 08-05-2008, 03:12 PM   #14
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Man i really want to try this now.
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