rev the engine to 5000 rpm before break in period
 

I took delivery of my white fr-s AT last Monday, n I took it on a little road trip this past weekend (it was a 300 miles round trip) n I had 112 miles before the road trip. I drove between 60-85 miles on the freeway, trying not to keep it at a constant speed or rpm. But on 4 occasions, I accidently rev the engine to 5000 rpm going uphill. My question may sound dumb, but I hope I did not do too much damage to the engine. N I thought engine these days are pre broken-in from the factory.

You're fine.

lol.

don't worry about it at all. My father in law, who is a cummins turbo diesel instructor and mechanic, breaks in those motors with 60+ PSI turbos with 100% load and max torque for 5 minutes and that's it. Motors these days are designed to be pushed a lot harder safely, imo.

I was tearing mine up with like 200 miles on it. I think you will be ok.

You probably need a total rebuild or a new engine

She ain't happy till she's 7000+ :)

:bellyroll: Sorry man, your engine is done!

Ooof, hopefully you didn't bend any valves. One thing is certain though, your warranty is void.







/sarcasm

Youre fine.

The flux capacitor will no longer be covered under warranty.

Accidentally I triggered warp and then hooned a worm hole - you'll get used to it in time.

Warning!!! Danger to Manifold.

Oh, n you may have damaged other parts as well.

lol @ everyone being sarcastic, Jokes aside..

Dont worry at all, you are fine. Plus, you give the piston rings a good workout. They are all happy now :thumbsup:

guys, don't be an ass, from the torque graph you can shift it at ~6400rpm. In fact, that when u get the most torque and hp.

The OP was worried about going above 4000 during the 1000 mile breakin period, which is recommended by the manual.

Though there's arguments for both the under 4K and the "Drive it like you stole it" break-in methods, I think a gentle break in with occasional runs to redline when the engine is fully warm is a good way to do it.

There is evidence that shows babying a new engine does more damage than driving it hard during breakin. I have never had any issues driving my cars hard during the breakin period.

Enjoy the car, drive it, and don't worry.

This thread is lulz.

You want to get the engine nice and warm then drive it pretty hard in a higher gear (4+) with heavy acceleration under load and engine braking. Don't abuse it but drive it hard. This helps seal/seat the piston rings and the engine braking helps remove miniscule debris from the cylinders. A car with properly broken-in piston rings will have more power, better fuel economy, reliability and burn less oil. You need to do this when the engine is brand new (~20 miles) or it doesn't really matter. After that, drive it however you want, just dont cruise constantly at the same rpm.

In the rare circumstance that something breaks, it's better to find out sooner rather than later when it's not covered by the warranty. It's either defective from the factory or it's not... it's not like part X could break at 70 miles, but then be perfectly fine forever after 1000 miles. It should be noted that every engine coming from the factory has already been redlined (and probably more).

I did a "stepped" break in in mine.

For the first 200 miles, ~50% throttle and no more then 4k rpms. 2-400miles, 60% throttle and no more then 5k rpms. So on and so forth until redline and full throttle. You're not only breaking in an engine but the entire car.

4k miles on it now and constantly taken to redline :D

That's not how you pick shift points and that's not when you have the most hp.

That only in the American manual then, because i read the manual i got with my GT86 front to back and there is no mention of any break in period in the entire manual.
I also checked with my local Toyota dealer and he also said that there is no break in for this car.
Seems strange to me that in America there is a 1000 mile break in necessary and in Europe we can go full throttle from day 1.:burnrubber:

You likely lost about 30 hp. I would get some Grimmspeed and Greddy stickers on the car asap to get your 30 hp back.

Its just there to protect toyota from lawsuits

OP: you're fine. All cars are essentially broken in at the factory. Motors are tested at low and high rpms. Maybe another reason for the break in procedure in the manual is to allow you time to get use to the car before you start drifting sideways at 7000 rpms.

You're also supposed to vary RPMs during break-in. I've heard no good argument for starting off with an extended road trip that was probably on a highway at a steady RPM. Even so, no one can really tell and it won't break anything.

me too, I think it had like 180 before its first redline lol

Mine had to be driven from a dealer 300 miles away to get the one i wanted. Immediately i took it on a road trip from Charleston to STL. bout 1000 miles one way. I now have 5k on the car and no problems. Several redlines in there too

Please tell us where you get this wrong information. Engines are assembled and installed. The only "testing" they get is as the finished car is moved around under its own power: out the door, to a storage yard, on a transporter, on a ship, in another storage yard or two on a transporter, and around the dealers lot. 20 miles tops.

Not sure if this applies to all engines built.. When I bought my last corvette, I did the museum delivery, flew out to the factory and picked up my car directly from the factory. ALL engines produced are fired up and tested using natural gas. This way they can be shipped without gasoline in them. (Engines made at different plant).
They are run to redline along with some other tests after assembly before being married to the chassis. I'm sure other OEMs use similar practices.

Our engines are also run up on natural gas, it's not a break-in procedure for the entire powertrain, it's just a quick test to QA function.

Car is totaled. I'll give you $1200 and haul it off for you.




J/K, I hit the redline on the test drive in mine. You'll be fine.

It is because America is home of the the lawyers. Lawyers in the company I work for have their hand in everything.

I know for a fact that the engine in an Audi R8 is "tested" at very high rpms prior to insertion into the car. I find it difficult to believe that a company like Toyota doesn't test their motors for QA before it goes out the door. I stand corrected if I am incorrect.:cheers:

Off the dealer alot i was revving at 6k like a boss.... Dont believe in a "break in period"

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I was told its like this in America because when they ship them overseas, they put a grease/oil on the exhaust that will burn off in higher RPMs emitting a smell. Nothing to worry about, but after 1000 miles the grease/oil should have disappeared and be fine to :burnrubber:

I checked the manual (it is the dutch version) in detail today and the break in periode is also mentioned in t he European manual. For the first 1600 km we are not allowed to go above 4000 rpm unless it is an emergency.
I think i had e few emergencies yesterday.:burnrubber:

Its mentioned in a part of a the manual where i wouldn't search for it.
Drive procedures/ driving away on a slope. :iono:

And on monday i gonna pay my dealer a visit and ask him where he got his information about het break in period.:slap:.
So it is not an American thing to cover themselfs for any lawsuits.:cry:

lol im gunna guess its about 50% of people dont go by the break in period at all and drive there car hard from the lot. its not gunna do anything, i took a silver limited on 3 test drives, redlining it everytime and it had under 50km on it, if the break in period mattered at all, the guy that bought that one would know!

I drifted my 86 in a wet parking lot the day I got it.

The only way to reset the break in is to bounce the tach needle off the redline a few times.