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Tuning question nitro 4 tec
I had my local hobby shop tune it for the break in ,
I am now 5 tanks in and ready to retune .... my question is do I just lean it out a bit by adjusting the needle? or do both needles need to be adjusted? the small screw is just idle correct?<br type="_moz" /> |
RE: Tuning question nitro 4 tec
I typically break mine in, and then start leaning it out. I start with the HSN, and then the LSN, I do some high-speed runs (leaning out 1/4 turn) until I lean it too much, then go back about 1/2 turn. Then, let idle for 10 seconds, and give it full throttle, and begin the LSN leaning. You are going to find a slew of responses. The bottom line is that tuning is really not that difficult. If it's sluggish and lots of smoke, it is too rich. If it's choppy with little to no smoke, it's too lean. And yes, the small screw is just the idle-stop. I would not mess with it unless you have problems starting or it won't idle right.</p> |
RE: Tuning question nitro 4 tec
Tuning of the traxxas engines is fairly easy once they are broke in. Most you probably ever will need to adjust is the High Speed Needle.Counter Clockwise willrichen the air fuel mixtureand Clockwise willlean the mix. The Traxxasmanual comes witha few tips on weather conditions for different days.You may need to perform alittle tweaking of the HSNif you have drastic tempature changes. Fixed Typo on needle settings. Looking another post you made in another part of the forum says you have owned nitros before so this is just information for others that may not know this http://www.rcuniverse.com/forum/js/f...wink_smile.gif I am new to this forum and just starting to look around how I can help others with questions with my 12+ years of R/C experience. I generally spend a few minutes warming up theengines I own then tweak them for the day. Does not take too long in the first 5 minutesyou will learn from the sound and trail of smoke how it is running. As John says you always want to have a healthy trail of smoke when running. One of the things I like to suggest is cut a 1 inch round hole in the windshield to increase air flow to the engine. This improves coolingof the engine. I own the original Nitro 4 Tec with the Pro .15 engine and have had it since 1999. I have not run it in about6 years butit ran strong the last time I fired it up. Since you are new I will provide a little more information on care of the engine. After running for the day run the fuel tank dry or pour out the extra fuel of the tank then start it a few times to get all of the fuel out of the engine. Let it cool for a bit then clean around the air filter and remove it. Disconnect the blue wire than Pour in some after run oil and use the easy start to move the oil through the engine. Just a few seconds is all you need. Clean the air filter of all the dirt it collected while you played. I like to do this in a sink with dish soapand dry it. This is a recomendation purchase some extra air filters so you can put a clean one in with fresh oil on it. Once it is dry reoil it with the Air Filter Oil that came in your kit. I like to move the piston to the bottom of the compression stroke until the next time I go to play. The engines use what is called a pinch type seal instead of rings on the piston so moving the piston to the bottom of the compression stroke will assist in keeping your engine healthy and strong for many gallons of fuel. Hope all this information helps you out http://www.rcuniverse.com/forum/js/f...wink_smile.gif</p> |
RE: Tuning question nitro 4 tec
ORIGINAL: JoeMaxx Tuning of the traxxas engines is fairly easy once they are broke in. Most you probably ever will need to adjust is the High Speed Needle. Clockwise will richen the air fuel mixture and Counter Clockwise will lean the mix. The Traxxas manual comes with a few tips on weather conditions for different days. You may need to perform a little tweaking of the HSN if you have drastic tempature changes. Looking another post you made in another part of the forum says you have owned nitros before so this is just information for others that may not know this [img][/img] I am new to this forum and just starting to look around how I can help others with questions with my 12+ years of R/C experience. I generally spend a few minutes warming up the engines I own then tweak them for the day. Does not take too long in the first 5 minutes you will learn from the sound and trail of smoke how it is running. As John says you always want to have a healthy trail of smoke when running. One of the things I like to suggest is cut a 1 inch round hole in the windshield to increase air flow to the engine. This improves cooling of the engine. I own the original Nitro 4 Tec with the Pro .15 engine and have had it since 1999. I have not run it in about 6 years but it ran strong the last time I fired it up. Since you are new I will provide a little more information on care of the engine. After running for the day run the fuel tank dry or pour out the extra fuel of the tank then start it a few times to get all of the fuel out of the engine. Let it cool for a bit then clean around the air filter and remove it. Disconnect the blue wire than Pour in some after run oil and use the easy start to move the oil through the engine. Just a few seconds is all you need. Clean the air filter of all the dirt it collected while you played. I like to do this in a sink with dish soap and dry it. This is a recomendation purchase some extra air filters so you can put a clean one in with fresh oil on it. Once it is dry reoil it with the Air Filter Oil that came in your kit. I like to move the piston to the bottom of the compression stroke until the next time I go to play. The engines use what is called a pinch type seal instead of rings on the piston so moving the piston to the bottom of the compression stroke will assist in keeping your engine healthy and strong for many gallons of fuel. Hope all this information helps you out [img][/img]</p> Im sure it was a typo but turning the needles clockwise leans it and does NOT richen it. |
RE: Tuning question nitro 4 tec
Good first post JoeMaxx. Welcome to the forum!
To the OP, one hint that helped me remember which way to turn when I want to richen/lean, was to think of it like a water faucet. CCW to turn increase the water, and CW to decrease the water. Same thing here. CCW to turn on more fuel (richen) and CW decrease the flow of fuel (lean). |
RE: Tuning question nitro 4 tec
This video is helpful for any nitro r/c
[youtube]http://www.youtube.com/watch?v=ma2_CghxiUk[/youtube] |
RE: Tuning question nitro 4 tec
HI Guys,
Yes it was a typo so I fixed my Typo on the fuel mix settings thanks for catching that http://www.rcuniverse.com/forum/js/f...wink_smile.gif |
RE: Tuning question nitro 4 tec
I agree, that is a good tuning video. I actually have that DVD (with a whole lot of other HPI 'stuff' on it) and as ashamed as I am to admit it, on nights when I can't sleep, I will throw it on the 60" big screen and get my nitro fix. ;-)
I just noticed the OP stated he has his LHS "tuned it for break in". I know nothing about Traxxas engines....does this indicate his LHS just richened it for him? Sir, I hope you did not pay them for this service. |
RE: Tuning question nitro 4 tec
I just picked up a HPITrophy Truggy that came with that video. Ionly got thru 4 tanks of the breakin process before the weather turned and need to finish it up in the spring before I take it out for full all out running.
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