Carb needle
04-13-2007, 02:40 AM
#31
Originally Posted by wandzul
i think maybe the low needle he said is actually mixture screw.. 
my gs15r got mixture screw.. i usually dont mess with it, but only high & idle screw.. 
my 2 cents
my gs15r got mixture screw.. i usually dont mess with it, but only high & idle screw.. my 2 cents
04-13-2007, 02:52 AM
#32
Originally Posted by TeeKuang
Nope, that is really low needle as mentioned in CEN web site, I'm using NT16 engine, which is stock engine. 0.16 cubic inch, 2.67c.c.
04-13-2007, 02:56 AM
#33
Originally Posted by wandzul
hehe.. i'm not saying u're wrong.. for my kyosho it's for altering the mixture.. its situated at the same exact spot as ur NT16.. i'm just saying that i just flush the screw & proceed with altering high speed & idle screw only.. i dunno whether its the same or not with ur engine.. maybe its slightly differ..
. the sleeve and piston kits expensive or not? how much roughly?
04-13-2007, 03:00 AM
#34
Originally Posted by TeeKuang
Aihhh.. I'm pening already la . the sleeve and piston kits expensive or not? how much roughly?
. the sleeve and piston kits expensive or not? how much roughly? toycity got cen parts but they're overpriced.. i dunno the price, maybe around rm250-300.. sifu-sifu who know any lhs carrying cen parts pls help.. 
04-13-2007, 05:46 AM
#35
when i was cen that time, toycity technical help me tune , n said to me: "once everything well set, u just need set the highspeed needle from time to time to suits ur weather , power etc etc... ", but that doesnt means that other needle dun border, just less sentuh ...
n just to inform u nt16 very makan nitro~even i had lean it that time~
n just to inform u nt16 very makan nitro~even i had lean it that time~
04-13-2007, 06:18 AM
#36
Originally Posted by tancp81
when i was cen that time, toycity technical help me tune , n said to me: "once everything well set, u just need set the highspeed needle from time to time to suits ur weather , power etc etc... ", but that doesnt means that other needle dun border, just less sentuh ...
n just to inform u nt16 very makan nitro~even i had lean it that time~
n just to inform u nt16 very makan nitro~even i had lean it that time~
04-13-2007, 10:02 AM
#37
Originally Posted by TeeKuang
lean it? how many round you turn the hi speed needle out?
ps: if u are asking me how many turns, i dunno... my buddies help me that time~
04-14-2007, 04:12 AM
#38
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Originally Posted by TeeKuang
lean it? how many round you turn the hi speed needle out?
NEVER EVER go a full rotation when tuning an engine, they only need an 8th of a turn (1 hour increments) at a time, be patient, small things make a huge difference, big things blow up............its that simple. Like I said previosly, ensure your engine is warm before attempting any tuning.
If you are having major dramas with tune, it sometimes helps to check your clutch. Sounds silly but if it is worn, it will engage too early and give a false tune. By this I mean you will be chasing the high speed, low speed (hi end low end) needles for power, especially the low end and it affects this needle more. You will also think it is reving too high and and try to adjust the idle.
If you have oil coming out the stinger, your running rich, too rich an enginge can also give you problems in the long term, as it can couse carbonisation, and the result is fouling of the plug (minor problem) and fouling of the top of the piston. This can lead to, too much compression (if left) and a popped engine(worst case).
There is a fine line between good tuning and bad tuning, I personlly like a light trail of aqua blue smoke whatever the speed my buggie is going. You wont necesarily see smoke when idling.
Hope this helps,
Darrin
04-14-2007, 06:09 AM
#39
Originally Posted by dirtdustingdavo
Mate,
NEVER EVER go a full rotation when tuning an engine, they only need an 8th of a turn (1 hour increments) at a time, be patient, small things make a huge difference, big things blow up............its that simple. Like I said previosly, ensure your engine is warm before attempting any tuning.
If you are having major dramas with tune, it sometimes helps to check your clutch. Sounds silly but if it is worn, it will engage too early and give a false tune. By this I mean you will be chasing the high speed, low speed (hi end low end) needles for power, especially the low end and it affects this needle more. You will also think it is reving too high and and try to adjust the idle.
If you have oil coming out the stinger, your running rich, too rich an enginge can also give you problems in the long term, as it can couse carbonisation, and the result is fouling of the plug (minor problem) and fouling of the top of the piston. This can lead to, too much compression (if left) and a popped engine(worst case).
There is a fine line between good tuning and bad tuning, I personlly like a light trail of aqua blue smoke whatever the speed my buggie is going. You wont necesarily see smoke when idling.
Hope this helps,
Darrin
NEVER EVER go a full rotation when tuning an engine, they only need an 8th of a turn (1 hour increments) at a time, be patient, small things make a huge difference, big things blow up............its that simple. Like I said previosly, ensure your engine is warm before attempting any tuning.
If you are having major dramas with tune, it sometimes helps to check your clutch. Sounds silly but if it is worn, it will engage too early and give a false tune. By this I mean you will be chasing the high speed, low speed (hi end low end) needles for power, especially the low end and it affects this needle more. You will also think it is reving too high and and try to adjust the idle.
If you have oil coming out the stinger, your running rich, too rich an enginge can also give you problems in the long term, as it can couse carbonisation, and the result is fouling of the plug (minor problem) and fouling of the top of the piston. This can lead to, too much compression (if left) and a popped engine(worst case).
There is a fine line between good tuning and bad tuning, I personlly like a light trail of aqua blue smoke whatever the speed my buggie is going. You wont necesarily see smoke when idling.
Hope this helps,
Darrin
Is it ok to use 25%nitro fuel on my stock NT16 engine? I'm using Morganfuel's Sidewinder 25%. I've been using it for half gallon already, I hope it didn't hurt the engine.
04-14-2007, 07:59 PM
#40
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Originally Posted by TeeKuang
Thanks Darrin, you've been helping me alot Is it ok to use 25%nitro fuel on my stock NT16 engine? I'm using Morganfuel's Sidewinder 25%. I've been using it for half gallon already, I hope it didn't hurt the engine.
Is it ok to use 25%nitro fuel on my stock NT16 engine? I'm using Morganfuel's Sidewinder 25%. I've been using it for half gallon already, I hope it didn't hurt the engine. I dont know much about the NT16 engine, is it an on road engine?
I race 1/8 buggies with an AXE Rossi Cobra 21 turbo. I only use 20% nitro as I fing that this is plenty for me. I was using 25% with my last engine which popped just the other day on the starter box of all things. But that engine had seen nearly 40lt of fuel go through, so it had a good life.
From what I understand is on road only use 16% (something to do with their rules). Buggies,truggies amd monster trucks are pretty much unlimited.
Whatever you use, just ensure that the head is shimmed enough and the pluh is suitable,IE the more nitro the colder the plug should be.
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