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Breaking in New Engine

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Team 17

Team 17

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I HAve a new Nova M-12 engine for my Mugen MTX-3 that I need to break in. Every car that I've had the Manufacturer has different ways to breaking in their engine. My didn't give insta. to do it. Can u guys help??
 
standard breakin proceedures would be as follows:

- start first tank of fuel with engine as rich as it can be without stalling. usually in the range of 3 turns out on the HSN. run the vehicle with the body off, on pavement, and 1/4-1/2 throttle only.
- Repeat for second tank of fuel.
- Third tank - keep needle valves the same, but begin to give a lil more throttle in short bursts.
- fourth tank of fuel - lean out the hsn 1/8th turn, and repeat previous steps.
- fifth tank - lean out another 1/8th, and repeat.
- sixth tank - begin to tune for power. make any ISS adjustments.
- seventh through 10th tanks. tune for optimum power.
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this may be a lil overkill - but in my last 3 mills, i have done just what i typed, and have had NO problems with any of them!
 
Originally posted by Nitroaddict
standard breakin proceedures would be as follows:

- start first tank of fuel with engine as rich as it can be without stalling. usually in the range of 3 turns out on the HSN. run the vehicle with the body off, on pavement, and 1/4-1/2 throttle only.
- Repeat for second tank of fuel.
- Third tank - keep needle valves the same, but begin to give a lil more throttle in short bursts.
- fourth tank of fuel - lean out the hsn 1/8th turn, and repeat previous steps.
- fifth tank - lean out another 1/8th, and repeat.
- sixth tank - begin to tune for power. make any ISS adjustments.
- seventh through 10th tanks. tune for optimum power.
------------
this may be a lil overkill - but in my last 3 mills, i have done just what i typed, and have had NO problems with any of them!
Click to expand...

Everyone breaks in engines differently. My break in is similar to NA, I just make my piston is at BDC during cooling. Here's mine:

Tank 1-Blip the throttle and gently brake for about 3 mins. Don't go above quarter throttle. Shut off the engine and let it completely cool with the piston at BDC. Continue this process until the 1st tank is almost empty.

Tank 2-Lean out the hsn just a little about an 1/8. Go up to half throttle. After tank is almost empty, shut it off and completely cool at BDC.

Tank 3-Same as previous but, lean out hsn about an 1/8. Also go to about 3/4 throttle.

Tank 4-6- Same as previous and lean out the HSN after every tank. Just make sure you get good smoke and keep the temps down. You're going to want run below 270.

Tank 7- Tune for performance.

Tip: Whenever you cool the motor during break in always make sure the piston is at BDC.
 

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