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tuning questions..

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Old 01-07-2008, 12:21 AM
  #1  
neupane00
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Default tuning questions..

hey guys, i am trying to tune my truck and i have few questions.. i will try to tune tomorrow but since its monday, i wont have any open parking lots and such.. is it okay to tune with wheels off ground? will it have bad effect on engine?
next question, if my wheels are off ground, how would i tune high speed needle? this is my first time trying to tune engine so please help.

from what i learned by reading and watching videos. i should tune the high speed needle first. and start leaning out little by little till i see no performance increase. is that right? but now if i am tuning wheels off, how can i tell this?

next steps on instruction is to tune idle speed. to do that, decrease the idle till it dies. and the increase by half the amount you decrease and try again. (i guess i can do that wheels off)

third.. low speed needle.. when idling, pinch the line going to carb with needle nose plier.. and engine should run about 4 seconds. ( this too can be done wheels off)..

does this sound right? and if so and i need to follow above, how do i tune wheels off?

last question.. on properly tuned engine. if u throttle up (wheels off), do you see mist of nitro ( enough to make pavement look kinda wet) coming off the exhaust? like if u put a finger near exhaust how much nitro/oil/wetness do you see on ur fingers?
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Old 01-07-2008, 12:42 AM
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Elite_Tux487
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Default RE: tuning questions..

do NOT tune with the wheels off the ground for one..you may end up overreving the engine and possibly doing damage...and its pretty hard to judge performance....if you cant see it moving...
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Old 01-07-2008, 12:46 AM
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Default RE: tuning questions..

it sounds like you have the right idea about tuning. but definitely DO NOT tune with wheels off the ground. make small adjustments at a time...1/8 turn of the needles max. and keep going till you see the performance peak out. with time you'll be a master at it
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Old 01-07-2008, 12:47 AM
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Default RE: tuning questions..

Also..when tuning the high speed for performance..run the truck up and down a straight section so u can visually see the fastest it will go then its a good idea to back off the needle 1/8 turn richer. As for the idle..leave enough so its still running properly and not enough as to where the truck is going to start moving on its own. By the way...this guide should give you all of the rest of the information you will ever need to tune a nitro engine. http://www.*********.org/cars_eng-tuning.htm
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Old 01-07-2008, 08:32 AM
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Default RE: tuning questions..

thanks guys
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