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tips and tricks for all nitro

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Old 07-13-2007, 06:28 AM
  #1  
joelgould111
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Default tips and tricks for all nitro

post all of your nitro tips and tricks from bodys to fule

how to hold your fule line in place this is not my idea but traxxas made this one use a body clip to hold fuel line in place
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Old 07-13-2007, 07:16 AM
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ttoks
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Default RE: tips and tricks for all nitro

you can make excellent wheel hex pins and a arm pins out of motorbike wheel spokes, if you strip a screw, yo can very easily use a 3 mm self tapping screw to tap a new hole and secure whatever part (done this on my rear skid plate) you can easily beef up the electrical wires on the EZ start with a clip off of a 7.2 volt battery, a soldering iron and a little soldering experience (i'll post up some pictures), and finally my tuning guide

I wrote this guide a while back and just ended up saving it to my computer after a while and i post it where i feel it could be useful, with a few little tweaks depending on the problems the person i'm trying to help is having.

now, for the idle being to high or to low, first set it back to factory which is 4 turns out on the high speed needle and 1.75 turns out on the low speed, start the truck and run it around to let it warm up, once you have it warmed up bring it in and let it idle, if it's to high you will need to turn the idle screw out maybe 1/4 or 1/8th of a turn, and see how it's idling then, if you cant get the truck to start, give it a little bit of throttle, once the engine is warm it should start up very easily.

then one you have it idling you can start tuning, when your tuning, go in very small increments at a time, and ALWAYS tune the high speed needle first, i usually go by 1/12 or 1/16th of a turn at a time, but must guys go 1/8th of a turn, after each adjustment do a few high speed passes, take very careful note of 3 things.

1. the performance, has it gotten better or worse? when you start getting the rpm up does it sound like it's cutting out? if it sounds like it's cutting out then you are to lean and need to richen the HSN, if it is loading up and the performance is very sluggish then it is rich and you can go a little leaner
2. the smoke trail, there should always be a nice, clearly visible trail of blue smoke coming from he exhaust, always, if you cannot see a good trail of smoke, it is another sign of being to lean, if you ve a lot of smoke at all rpms then you can go a little leaner
3. the temperature, since this is your first nitro truck it is a good idea you get a good, reliable temp gauge, the engine should not go over 270 degrees F, if it does it is another sign of being to lean and you should richer it up just a little bit, but something most people over look is that you should not run under 190 degrees, if you do the piston sleeve doesn't expand enough and the engine will ware out very quickly.

a last note on the high speed needle is, never tune by one symptom alone, never tune just by performance, or smoke trail or temp, use at least two, so if you lean the engine out and the temps go from 220 to 230, and you notes it's a little more powerful and go a little leaner, the only time you should ever tune by using just one symptom is when:

A: you run to lean and the engine start hesitating and cutting out
B: the temp go above 290 degrees F

in both cases you need to richen the HSN by at leas 1/8th of a turn if not more.

now for tuning the low speed needle

one the high speed needle is set to where you want it, you can start with the low speed, start off at the factory setting, and just like the HSN tune in small increments of at least 1/8th of a turn, if not smaller, when tuning the low speed you are aiming for a nice crisp throttle response, if you run the low speed to lean you will eat through glow plugs very quickly and it can damage your engine.

once you start getting close to what you think is the best throttle response, tune in smaller increments, once you get it so as soon as you touch the throttle the engine start revving up and doesn't bog down at all, so as soon as you hit the gas, the truck takes off, once you get to that point do not lean it any further, and for a safe guard i like to richen it by 1/16 of a turn.

to test to see if the low speed needle is set to rich or to lean you need to do the pinch test, all you do is pinch the fuel line, and count how many seconds it takes for the engine to die, when you pinch the fuel line, the engine should idle normally for a second or two, then just before it dies it should revv up a few hundred rpm, then die on the count of 3.

if the engine dies in 2 seconds or less, or does not rev up at all, you are to lean and need to richen the low speed needle, if the engine takes more then 3 or 4 seconds to die, you are to rich and can lean the engine out a bit more.

for then engine not start, check to see if the glow plugs good, to do that just take the plug out, connect it to the blue glow wire, hold the glow plug up against the cooling head, insert the starter wand into the truck and press the red button, if the wire in the plug glows it's good, if it doesn't you need a new plug, if the plugs good it may be because the engine is flooded, so you need to take the glow plug out, pinch the flue line, turn the truck upside down and turn it over with the start wand and see if that helps.

once you have done all your tuning you might have to set the idle again, if you do just follow the steps i posted at the top of the page, you should never have to touch the idle screw unless the truck is idles high enough for the clutch to engage, or that low it wont start.

(I don’t mind if people use this guide to help people out, as long as I, Ttoks get credited as the author)

in regard to the wires for the EZ start, a good idea is to zip tie the wires securely to the starter motor to prevent the wires from moving and breaking the terminals off of the starter motor.

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Old 07-13-2007, 09:01 AM
  #3  
joelgould111
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Default RE: tips and tricks for all nitro

wow thanks for hellping another one is to hellp protect your eazy start blue wire you can use a peace of braided fule line great for long days bashing it looks great if you dont flipm the truck but if you do it looks a bit messy but your wire would be in perfect condition i will put pictures on soon im at work now


look on top of the engine that is what im talking about lol
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Old 07-13-2007, 09:18 AM
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Brent Davis
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Default RE: tips and tricks for all nitro

http://www.misbehavin-rc.com/pit-lane/tm-pit-lane.asp
Old 07-13-2007, 10:33 AM
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jarett 92
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Default RE: tips and tricks for all nitro

i put about 1/4th inch of fuel line on my shock shaft so it doesnt bottom out.
Old 07-13-2007, 06:22 PM
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drag racer
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Default RE: tips and tricks for all nitro

use a bit of fuel tubing to secure the antenna to the receiver.
use some fuel tubing instead of the brake spring to apply more pressure.
put duct tape on the inside of tires to prevent ballooning.
Old 07-14-2007, 06:22 AM
  #7  
NITROHOLICS ANONYMOUS
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Default RE: tips and tricks for all nitro

Use nail polish instead of thread lock

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