blown camaro after 79 miles!!

[Russell James]

I'll bet it dropped a valve. Anything mass produced has variation. Take it easy and follow proper break in procedures and that little variation is 99.99% not a problem. But when a tight fitting valve stem winds up in a tight valve guide and some yahoo takes that motor to max stress on day one = infant mortality. Valve and guide start galling, seize up, piston kisses valve - done.

That same motor if broken in properly probably would be running perfect today. A little run time at low to moderate load and then easing into heavier loading, goes a long way to helping motor parts wear into each other properly before seeing max load/heat. Taking a brand new motor to max load on day one is just moronic. The fact that most survive that abuse is a testament to modern production. But get one with parts on the tight side and taking that motor to red hot on day one is asking for problems.

[Moriartii]

Since I plan I keeping my Camaro for 10 years I will see you then I and I can guarantee will not be having an issue through any fault of mine. I understand how an internal combustion engine works I also understand why the break in procedure is there. Given the two and a little common sense, breaking a motor in is not rocket science. See you in ten.
K

[black 2ss/rs]

140mph after 79 miles driven is pretty close to 50-60mph cycling for the first 250 miles right? By the way your friend with the blown engine (motors are electric) is going to have lots of problems with the rest of the vehicle. His rear dif is now unevenly pitted and is most likely going to clunk and rattle. He probably was abusing the hell out of the synchro's... Luckily the car has a self adjusting clutch. Your friend is not impatient, he's an idiot.

[OminouSS]

Originally Posted by black 2ss/rs

140mph after 79 miles driven is pretty close to 50-60mph cycling for the first 250 miles right? By the way your friend with the blown engine (motors are electric) is going to have lots of problems with the rest of the vehicle. His rear dif is now unevenly pitted and is most likely going to clunk and rattle. He probably was abusing the hell out of the synchro's... Luckily the car has a self adjusting clutch. Your friend is not impatient, he's an idiot.

Does that happen on these cars without a solid axle? I've not seen the rear unit. Does it have a typical R&P gear?

Hey Milk - classic statement.

Just looked at my manual and I don't see anything saying you should not drive 140mph. Hmmmm.

Warranty will cover is my guess. Now the dude with the top run 180+, maybe not; tune = Fail. I think GM screwed us with the 100k mile warranty thing. That's WAY too long to wait for a tune

[TJ91]

You know people who build engines encopurage people to do the hard break in. I did the OE break in and i regret doing soo.
Not only does my car feel slow, it also had the worst mlage for quite a bit of time.
Like some one stated, its not the engineers who wwrite the manual
People who have done the easy break in and have dynoed their cars, have shown less hp then those who have broken in their cars hard.
But there is a right way of breaking in the car hard

[Russell James]

Originally Posted by TJ91

You know people who build engines encopurage people to do the hard break in. I did the OE break in and i regret doing soo.
Not only does my car feel slow, it also had the worst mlage for quite a bit of time.
Like some one stated, its not the engineers who wwrite the manual
People who have done the easy break in and have dynoed their cars, have shown less hp then those who have broken in their cars hard.
But there is a right way of breaking in the car hard

If your car is slow, it has nothing to do with an easy break in. Maybe some low octane gas was used and the low octane map is now being used. Have you tried the fuse/batt disconnect thing?

People that break their cars in hard think they have a really fast car because they went through some double secret internet hard break in process. In reality, their cars are fast because they always have the throttle floored. 400 + hp does feel fast when your always beating the bejesus out of it.

I've had plenty of cars - vettes, fbodies, trucks.... that I just drove normally during the break in period. They all performed perfectly. And when dyno'd after having a few thousand miles on them, made roughly the same numbers as anyone else.

If the powertrain engineers thought there was something better to do to a new vehicle, they would tell you. But there are some areas of the vehicle I'll bet you an actual engineer will never tell you should be abused when brand new. Ever hear a professional ring and pinion/differential builder tell you to take this new gear set and go beat the hell out of it? No.
From the engine perspective what happens if those brand new valves are a hair tight in the guides, or the pistons are a hair tight in the bores? Take that extra tight motor to max load and heat on day one is not going to be doing it any favors.

I'd bet your break in was just fine. Time to check out some other reason for it being slow and getting bad mpgs. I'd bet it's running on the 87 map.

[black 2ss/rs]

on the first page of break in procedure, the manual states "do not excede 100 mph" and "do not excede 4000 rpm"

[TooCool5]

Originally Posted by Moriartii

Since I plan I keeping my Camaro for 10 years I will see you then I and I can guarantee will not be having an issue through any fault of mine. I understand how an internal combustion engine works I also understand why the break in procedure is there. Given the two and a little common sense, breaking a motor in is not rocket science. See you in ten.
K

I keep my cars more than 25 yrs and always followed the GM break in procedure with no problem. Never touched the blocks or internals.

[CaMeRoN187]

i thought your sposed to wait 1500 miles to go over 80ish

[The_Blur]

At least he didn't try to port and polish the engine like this guy.

Originally Posted by Oldrocker

I think he is referring to the movie 2012 or the fact that the Mayan calendar only goes up to 2012, making some believe that the world is ending then.

Originally Posted by ls7camaro

promod55, he means the whole world ending in 2012 thing

Both of these posts are incorrect. The Mayan calendar only makes 2012 important because it represented the 9th age of their religion. Since their number system only had 9 number instead of 10 like ours, the number 9 was very important. As a result, the year 2012 would have been a year of celebration. The Mayan calendar goes on for a very long time after 2012, long enough to suggest they stopped writing because they had gotten multiple millennia into the future and got tired of writing. I'll bet you my entire income and net worth that the world does not end before 2012.

[jrc1122]

Originally Posted by The_Blur

I'll bet you my entire income and net worth that the world does not end before 2012.

Soo................If the World does not end, you would collect and pay nothing out.
If the World does end in 2012- THE WORLD ENDS and you will not have to make good on your bet..

lol


I like your odds
________
Gong Bong

[camaro5]

Starting and
Operating

New Vehicle Break-In

Notice: Follow these
recommended guidelines during
the first 2 414 km/1,500 miles of
driving this vehicle.

Parts have a
break-in period and performance
will be better in the long run.

• For the first 2 414 km/
1,500 miles:

• Avoid full throttle starts and
abrupt stops.

• Do not exceed
4,000 engine rpm.

• Avoid driving at any one
constant speed, fast or slow.

• Do not drive above 160 km/h
(100 mph).

http://content.gmownercenter.yahoo.c...aro_owners.pdf

[The_Blur]

Originally Posted by jrc1122

Soo................If the World does not end, you would collect and pay nothing out.
If the World does end in 2012- THE WORLD ENDS and you will not have to make good on your bet..

lol


I like your odds

[Mr Smith]

Originally Posted by camarogolfguy

What gear was he in?

He had it in "R" for race....