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safe to drive?
#1
Realisticly how safe is it to drive these nitro cars outside when it's cold as hell? I really like to get a tank in here and there. I know the engine has to be warmed but when you go outside it's darn 30 degrees. lol
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#2
Doesn't hurt them. It might be easier to start if you heat the block up, and try to keep it dry. You will have to richen it a little bit to keep the temps down though.
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#3
Just avoid curbs, and keep out of snow unless everything is waterproof. Make sure the engine gets up to temp even if that means putting a sock or alu. foil around the head.
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#4
if it's colder out wouldn't you lean it out a little cause the coldness will make it run cooler?
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#5
Nope, more dense air will make it run leaner. More+less fuel= hotter temps. I thought the same thing when I first ran my stuff in the cold.
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#6
hmm learned something new
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#7
Traxxas_Junkee Wrote:Nope, more dense air will make it run leaner. More+less fuel= hotter temps. I thought the same thing when I first ran my stuff in the cold.

not allways, when i ran my traxxas motors i had to richen it, but with my RB when it gets colder out i have to lean it out more.....so it depends on motor i guess
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#8
no it depends on the air its in and the air it was tuned in before hand. generallly speaking u should have to richen it and ur motors should run like 20-30 degrees cooler with the same amount of power. Cold air is usually drier aka less humidity which means more air so more fuel. like TJ said
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#9
yeah thats what i thought it was, but how come as the weather gets colder I have to lean my motor then??
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#10
Colder = Richer no matter what. Here is where temps get decieving because it may be so cold the head just doesn't heat up, even if the motor is starving for fuel.
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#11
ok so I just need to watch my smoke then right? It's a new os 18 so I really don't want to ruin it with about half a gallon on it lol
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#12
colder doesnt always mean richer dan, reread what I just posted. you dont want your motor to run at 260 outdoor then 260 indoor when its 80* colder it will be starving for fuel. tune for smoke and power not temps
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1/29/07 never forget....TTT Confusedalute:
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#13
I think you repeated what we both said....
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#14
If you do run it in that cool of temperatures, it may not run right when the temps do warm back up. I keep a winter and summer engine on hand for my trucks. My savage and mammoth will both probably be shelved for the winter since I don't feel like putting in a weak OS 21 RG just for snow. But, my revo will see some snow since I have the original 2.5R that still runs just fine. I ran the 18TM in the warmer months.

Although, I am thinking about getting a new era BB kit to install one of my extra OS 21RG's. But if I remember correctly, I had a harder time keeping the BB engines tuned last year than my SB engines. The smaller head/engine has less surface area so the temps stay more consistent. At least that's how it seemed.
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