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Old 01-21-2013, 12:35 AM   #1
Llama_
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Hello, I have a hatch sti that currently has 92x miles. Did I mess up the break in procedure by going 70% throttle at 92x miles on the odo? Or did I not mess it up considering I am so close to 1k?

Thanks

Ps: the car manual told me not to go past 4k rpm for the first 1k
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Last edited by Llama_; 01-21-2013 at 01:18 AM.
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Old 01-21-2013, 12:45 AM   #2
the suicidal eggroll
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Seriously?

You're fine, 5.5k is nothing, and I hope you've been giving it boost during the break in process, otherwise you didn't do any breaking in. The point of the break in is to seat the rings without glazing the cylinder walls. That means lots of boost, lots of vacuum, and keeping the heat down. Don't granny it or you'll wear down the cross hatching without doing any break-in, and don't do 160+ mph pulls or you'll glaze the cylinder walls and prevent break-in. Other than that you're pretty much A-ok.
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Old 01-21-2013, 12:57 AM   #3
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Quote:
Originally Posted by the suicidal eggroll
Seriously?

You're fine, 5.5k is nothing, and I hope you've been giving it boost during the break in process, otherwise you didn't do any breaking in. The point of the break in is to seat the rings without glazing the cylinder walls. That means lots of boost, lots of vacuum, and keeping the heat down. Don't granny it or you'll wear down the cross hatching without doing any break-in, and don't do 160+ mph pulls or you'll glaze the cylinder walls and prevent break-in. Other than that you're pretty much A-ok.
I've been driving on S and shifting at either 2.5 or 3.5. Thanks for the info, ill start shifting a little higher as i get closer to 1l
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Old 01-21-2013, 01:09 AM   #4
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As "the suicidal eggroll" said, high boost which means anything above 3.5 rpms. usually the rule of thumb with any new car under 1,000 miles is the do mid rpms for the first 500 miles and then regular driving. then when your first oil change comes up run a magnet through the oil and see how many metal shavings you pick up. if none than you didn't run it hard enough, if a lot of thick metal shaves are picked up you ****ed your motor. but with just about every stock-slighty modded wrx I've seen peak boost comes around 3.5k rpms. And besides that car was designed to get a beating so have fun with it. good luck and keep us posted on your future endevores with it.
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Old 01-21-2013, 01:10 AM   #5
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Quote:
Originally Posted by Llama_ View Post
I've been driving on S and shifting at either 2.5 or 3.5. Thanks for the info, ill start shifting a little higher as i get closer to 1l
Drive it harder and get some boost in there. Hopefully it's not too late, otherwise you'll have a low compression oil burner for life.
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Old 01-21-2013, 01:13 AM   #6
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OP your fine, its a car not some graham cracker house.
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Old 01-21-2013, 01:36 AM   #7
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Thank you for the tips. I have always felt boost but today was the first time I ever got the true taste of what I will be experiencing when I can go WOT.

As I stated, the manual told me not to go past 4k rpm and I've always shifted at 3.5 or 2.5. I checked my oil levels last night and its still at the perfect level so maybe i was doing it right and isn't a oil burner
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Old 01-21-2013, 01:55 AM   #8
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I currently have 4XX miles on mine (WRX), and I usually shift right below 4 every time I'm accelerating (which is a LOT, tons of start/stopping in my town). I also usually do 100% throttle once per trip... I've only hit 5k once on accident, and 4.5k about 3 times.

Going by the responses to this it seems like I'm fine, but just to make sure; Am I pushing it too hard?
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Old 01-21-2013, 02:17 AM   #9
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Quote:
Originally Posted by Llama_ View Post
Hello, I have a hatch sti that currently has 92x miles. Did I mess up the break in procedure by going 70% throttle at 92x miles on the odo? Or did I not mess it up considering I am so close to 1k?

Thanks

Ps: the car manual told me not to go past 4k rpm for the first 1k
You're fine. Break-in procedure however is varied. Some will tell you to follow manufacturer to the book some will tell you to break the engine hard and some will tell you to do a mix of both. All sides have had great success and rare failure. For my car I chose to follow what my manual says. They made the car so obviously they would know about it better than some garage mechanic.

Seems like you've been driving it quite a bit. I hit 4.5k-5k rpm a few times now and I think it's fine. It's a $30K+ car that was built for speed not some toy. Although I do shift really late. I usually wait until 3k-3.5k rpm to shift. I just want to have that boost all the time haha. And while driving around city I often keep the rpm around 2.7k-3k rpm right now just so I have that constant power. I know it gives me bad gas mileage but w/e gas is getting cheaper.

Quote:
Originally Posted by manualmotive View Post
I currently have 4XX miles on mine (WRX), and I usually shift right below 4 every time I'm accelerating (which is a LOT, tons of start/stopping in my town). I also usually do 100% throttle once per trip... I've only hit 5k once on accident, and 4.5k about 3 times.

Going by the responses to this it seems like I'm fine, but just to make sure; Am I pushing it too hard?
Occasionally hitting revs over 4k during break in isn't gonna hurt it. But I'm wondering why do you do a 100% throttle once per trip? It's a new car so doing pull with 100% will be a bit harsh on it. Actually it's harsh on any car new or used.
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Old 01-21-2013, 03:24 AM   #10
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Quote:
Originally Posted by luan87us View Post
Occasionally hitting revs over 4k during break in isn't gonna hurt it. But I'm wondering why do you do a 100% throttle once per trip? It's a new car so doing pull with 100% will be a bit harsh on it. Actually it's harsh on any car new or used.
I wasn't too worried about the occasional 4+, but I wasn't sure how bad flooring it was at this stage. It's usually not that hard of an acceleration, just if I'm at 2k going 40 and want my tiny fix for the day... But I'll stop doing it until I'm out of the break in zone if it's that bad for the car. Thanks for the info! I'm gonna go apologize to my baby now
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Old 01-21-2013, 09:28 AM   #11
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Your car gonna blow up brochachooooooo
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Old 01-21-2013, 09:40 AM   #12
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You're screwed. At EXACTLY 1k miles, not a mile before or after, your pistons turn into pumpkins. Then and only then, is it broken in.
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Old 01-21-2013, 09:42 AM   #13
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My first GC8 had exactly 300 miles on it when I brought it to the track for the first time. I hit the rev limiter maybe 30 times over the course of the day. Also hit 8000 rpm with a mis-shift at Lime Rock. Ho hum.
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Old 01-21-2013, 09:51 AM   #14
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Quote:
Originally Posted by jewbaru42 View Post
As "the suicidal eggroll" said, high boost which means anything above 3.5 rpms. usually the rule of thumb with any new car under 1,000 miles is the do mid rpms for the first 500 miles and then regular driving. then when your first oil change comes up run a magnet through the oil and see how many metal shavings you pick up. if none than you didn't run it hard enough, if a lot of thick metal shaves are picked up you ****ed your motor. but with just about every stock-slighty modded wrx I've seen peak boost comes around 3.5k rpms. And besides that car was designed to get a beating so have fun with it. good luck and keep us posted on your future endevores with it.
I don't know where you learned this, but please either a) forget it, or b) keep it to yourself.

No production vehicle meant as a daily driver has ever been designed for that.
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Old 01-21-2013, 10:03 AM   #15
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Quote:
Originally Posted by jewbaru42 View Post
As "the suicidal eggroll" said, high boost which means anything above 3.5 rpms. usually the rule of thumb with any new car under 1,000 miles is the do mid rpms for the first 500 miles and then regular driving. then when your first oil change comes up run a magnet through the oil and see how many metal shavings you pick up. if none than you didn't run it hard enough, if a lot of thick metal shaves are picked up you ****ed your motor. but with just about every stock-slighty modded wrx I've seen peak boost comes around 3.5k rpms. And besides that car was designed to get a beating so have fun with it. good luck and keep us posted on your future endevores with it.
This post doesn't make any sense. Ignore this guy.

Boost seats the rings. Any time I get asked about break in procedures I always say, drive it like its going to be driven from day one. By that I mean; if you're going to autox and hit the rev limiter everyday, that's how you should break it in. It's proven that motors, when broken in like this, make 10-15% more power.
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Old 01-21-2013, 11:20 AM   #16
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Ever been to a engine or vehicle production plant? I have. At the end of the production line are a set of chassis dynos called "rolls". Every vehicle will have it's very first start for the rolls. The vehicle is immediately run up to 80 or so MPH to check speedo calibration and other stuff. They don't ***** foot it up there either. WOT is pretty common.

I personally wouldn't track a car for the first 500miles, but I wouldn't hesitate if I had to.
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Old 01-21-2013, 11:28 AM   #17
the suicidal eggroll
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Quote:
Originally Posted by luan87us View Post
You're fine. Break-in procedure however is varied. Some will tell you to follow manufacturer to the book some will tell you to break the engine hard and some will tell you to do a mix of both. All sides have had great success and rare failure. For my car I chose to follow what my manual says. They made the car so obviously they would know about it better than some garage mechanic.
Remember, the manual is NOT telling you how to break in your engine so that it makes the most power, consumes the least oil, and lasts as long as possible. The manual is telling you how to break in your engine so that it will last through the warranty period so they don't have to pay to replace anything. This is the same manual that says consuming 1 quart of oil per 1k miles is perfectly acceptable...
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Old 01-21-2013, 11:32 AM   #18
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Quote:
Originally Posted by the suicidal eggroll View Post
1 quart of oil per 1k miles is perfectly acceptable...
I still think that's the most ridiculous standard ever. If my engine was burning 1qt every 1k I would be rebuilding it.
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Old 01-21-2013, 11:32 AM   #19
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Originally Posted by Badler View Post
You're screwed. At EXACTLY 1k miles, not a mile before or after, your pistons turn into pumpkins. Then and only then, is it broken in.
This. I've been pulling pumpkin seeds out of my engine for 2 years now. Not fun!
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Old 01-21-2013, 11:36 AM   #20
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This. I've been pulling pumpkin seeds out of my engine for 2 years now. Not fun!


This was you, wasn't it?
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Old 01-21-2013, 11:50 AM   #21
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Yes. And you should have seen my engine bay when that all popped.
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Old 01-21-2013, 12:13 PM   #22
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I only have about 150 miles on the odo and I've been over 4K. The sales guy said take it easy but don't baby it the whole time.
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Old 01-21-2013, 01:06 PM   #23
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I hit 5K pulling out of the dealer's lot w/ only 20 miles on the ODO. Depending on my mood I shifted anywhere from 3 to ~5.5K w/o regard to how many miles I had left until break-in was finished.
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Old 01-21-2013, 01:35 PM   #24
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Originally Posted by Schikane View Post
I hit 5K pulling out of the dealer's lot w/ only 20 miles on the ODO. Depending on my mood I shifted anywhere from 3 to ~5.5K w/o regard to how many miles I had left until break-in was finished.
Vin Diesel approves.
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Old 01-21-2013, 03:28 PM   #25
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Originally Posted by the suicidal eggroll View Post
Remember, the manual is NOT telling you how to break in your engine so that it makes the most power, consumes the least oil, and lasts as long as possible. The manual is telling you how to break in your engine so that it will last through the warranty period so they don't have to pay to replace anything. This is the same manual that says consuming 1 quart of oil per 1k miles is perfectly acceptable...
Manuals are written by engine majors who are taking their direction from marketing and warranty departments. At no point in the process do the guys who designed the engine really have any say in the matter.
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