Breaking it in

[JARHEAD0311]

What's WOT ?

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[Clink]

What's WOT ?

Wide Open Throttle....pedal to the floor

 

[Getz5.0]

"Groot" arrived with 6 miles on him and I did a "Hard" Break-in for the first 500 miles.

-I made sure the car was fully warmed up at idle
-I stayed under the Rev Limiter at WOT
-I used "Sport Mode"

First 500 miles:

5 mph slow roll first gear/Full Throttle Shifting through gears to 90 mph (staying under the rev limiter)/Shift to 6th gear or Neutral to slow down x 10 runs and cool down overnight. (After the WOT runs I just drove it normally until I got home for the day.)

I found a nice stretch of road to do this, either a onramp/offramp or area where you can put the car through the gears to do a proper ring seal. The goal was to put a load on the engine going through the gears WITHOUT using the engine to downshift to slow the car down. The car really came alive once I hit 120 miles on the odometer. I now have 550 miles on it and it flat out rips up the street! First oil change will be next week at around 600 miles and then the Mods will begin!

 

[Ruby305GT]

I've done a hybrid break in. Taken most opinions from people here and the coyote break in link posted earlier in the thread. So far I have 115 miles on it.
-always let it warm up to good temp before taking off
- don't REV past 4k the first 100 miles. I would do "hard" accel (1/2 gas pedal or less) then change gears right or before 4k RPM.
- I've driven a lot of highway, but constantly changing between 6 > 5 > 4 then back up every few minutes, lots of work but won't keep it at steady speed/rpm
- once I hit 100, the last 15 miles or so I have taken it up to 5k RPM or so on a few passes, at about 2/3 throttle. I have yet to floor it or do a WOT run.
-I say another 400-500 miles I'll do a near redline pass every week or everyone couple days.
- change the oil with M1 EP at 1k miles, then open her up for real!

This is my first NEW car I get to break in, i usually buy a year or 2 old, under 15k miles. I hope I am doing it justice and a good job. I plan to come my baby for a long time
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[evo8904]

It sounds like most people are overthinking a break-in. This will actually be my 16th new car. Just do the regular maintence and your car will be fine. Also, drive the car normal. This driving like a granny is a joke.

 

[Ruby305GT]

It sounds like most people are overthinking a break-in. This will actually be my 16th new car. Just do the regular maintence and your car will be fine. Also, drive the car normal. This driving like a granny is a joke.

I haven't necessarily driven like a granny, just haven't floored it or done WOT passes as the "by the book" recommends. Real life driving I just drive, heck I even stepped on it a bit before 100 miles were up. Wasn't a WOT pass but I've given it juice and it just wants more.


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[evo8904]

My break-in will include a line lock and installing a supercharger prior to 500 miles.

 

[Ruby305GT]

My break-in will include a line lock and installing a supercharger prior to 500 miles.

Cool man, to each their own. There are people that smoke their whole life and die of a heart attack, then there are those that die from lung cancer a year later.


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[Cj4428]

IMO drive it like you stoled it,these cars are not fragile!

 

[wireless]

The first 1000 miles on my Ecoboost were extremely hard miles. Took me about 2 weeks lol. I'm at 2k miles and I've had the car since 12/2 and I've loved it.

 

[Pharmer John]

Cool man, to each their own. There are people that smoke their whole life and die of a heart attack, then there are those that die from lung cancer a year later.


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Not sure what point you're trying to make here, as smoking, along with obesity, is one of the biggest preventable causes of coronary artery disease. Smoking does more than mess up your lungs (also increase risk for any number of other cancers such as pancreatic cancer and liver cancer).

 

[JimmyTwoTimes]

Not sure what point you're trying to make here, as smoking, along with obesity, is one of the biggest preventable causes of coronary artery disease. Smoking does more than mess up your lungs (also increase risk for any number of other cancers such as pancreatic cancer and liver cancer).

I would imagine the point he's making is that improper break-in procedures are one of the biggest causes of catastrophic engine failure.

 

[Pharmer John]

I would imagine the point he's making is that improper break-in procedures are one of the biggest causes of catastrophic engine failure.

When I read it, it sounded to me like he was trying to make the point that some people smoke all their lives (improperly break in their engines) and don't have any problems/live to be 90 while others get lung cancer and die at a young age (have engine problems from impropper break-in). The problem was how he phrased it, as a heart attack can definitely be caused by smoking, so it wasn't clear to me if this was the point he was trying to make or not.

If he was trying to say, "Some people don't follow the break-in procedure and have no problems while others have tons of issues, why take the chance?" and use the smoking analogy, a better way to phrase it would be to say, "Some people smoke all their lives and live to be 90 while others get cnacer and die at 50."

Not trying to be nit-picky, just wanted to make sure I understood what point he was trying to make as it was kind of ambiguous as written.

 

[Ruby305GT]

The point I was trying to make is that "to each their own" and the smoking/cancer/heart attack example was that; whether you break in the engine as per the book or line locking at the dealership delivery, engine can break right away or last forever regardless of the break in procedure. Meaning the break in might not even be the issue at hand, whether performed correctly or incorrectly. I guess it was correlated incorrectly on interpretation.

i.e.

- Some people smoke all their lives and die of a heart attack > Break in engine incorrectly or "not by the book" and engine breaks from bad gas, faulty QA, incorrect tune, whatever else….
- Some people smoke all their lives and die of lung cancer a year later > Break in engine incorrectly or “not by the book” and the engine dies from piston rings not sealing correctly, causing excessive blow by within its lifetime...

That’s a one to one relation above, but the gist of it was that no matter what you may do, the reason for failure may be totally unrelated to the initial break in or lack thereof.

I hope that clears it up a bit.

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