View Poll Results: Did You Follow 500 Mi. Break In ???
Voters: 227. You may not vote on this poll
How many of you followed the 500 mile break-in procedure?
#21
#22
Team Owner
Member Since: Aug 2007
Location: I live my life by 2 rules. 1) Never share everything you know. 2)
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St. Jude Donor '11-'12-'13, '16-'17-'18
#23
[QUOTE=Skid Row Joe;1598915997]250 miles here. But I drive like I stole it![/
1/2 throttle doesn’t count as “ driving it like you stole it”
1/2 throttle doesn’t count as “ driving it like you stole it”
#27
Tech Contributor
Member Since: Oct 1999
Location: Charlotte, NC (formerly Endicott, NY)
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Picked up my car on a Monday evening with 15 miles on the odometer, drove it 167 miles to get home. I drove the car everyday after that and went over 500 miles that weekend. I had in for the 500 mile oil change with about 600 miles on the odometer the following Tuesday. All within GM's guidelines. Took it fairly easy for another 1000 miles and had it on a track at about 1800 miles (per the OM the track break in period is 1500 miles not 500). First track event saw many laps where speeds exceeded 150. Been run hard since then.
Bill
Bill
#29
I did my first oil change at 505 miles. Close enough.
#30
Somewhat.
#31
Picked up my car on a Monday evening with 15 miles on the odometer, drove it 167 miles to get home. I drove the car everyday after that and went over 500 miles that weekend. I had in for the 500 mile oil change with about 600 miles on the odometer the following Tuesday. All within GM's guidelines. Took it fairly easy for another 1000 miles and had it on a track at about 1800 miles (per the OM the track break in period is 1500 miles not 500). First track event saw many laps where speeds exceeded 150. Been run hard since then.
Bill
Bill
..
#32
Safety Car
Now that I am older and wiser I followed the recommendations exactly.
However that was not always the case. I took delivery of my first LS1 in late August of 97. It was a Camaro 1LE. I picked it up on a Saturday evening. I drove it 10 miles home. Let the diff cool and put another 10 miles on it that evening. Woke up very early Sunday morning and headed to Sacramento (90 miles) where I ran a 5 run autocross at Mather AFB in the morning. Won my class. From Mather it is only a short shot straight South to Sacramento Dragway. Stopped there and made 3 passes in the 13 sec flat 106 mph range and headed back to the Bay Area. On the way home I stopped at a buddies shop in Fairfield and put it on his DynoJet. The Camaro LS1 was rated at 305 hp, the Corvette at something like 315 hp. I pulled 314.6 rwhp on the dynojet that afternoon. Lou Gigliotti had picked up his LS1 Camaro on Friday and put it on his DynoJet on Saturday and it pulled 305 rwhp. I figure my extra 10 hp was the way I broke it in.
By the way the 97-98 Corvette were dynoing about 285-290 rwhp stock. I don't know that we ever figured out why the F body LS1s were so much stronger as there was little difference other than the F body had a much larger oil pan than the Y body due to packaging.
However that was not always the case. I took delivery of my first LS1 in late August of 97. It was a Camaro 1LE. I picked it up on a Saturday evening. I drove it 10 miles home. Let the diff cool and put another 10 miles on it that evening. Woke up very early Sunday morning and headed to Sacramento (90 miles) where I ran a 5 run autocross at Mather AFB in the morning. Won my class. From Mather it is only a short shot straight South to Sacramento Dragway. Stopped there and made 3 passes in the 13 sec flat 106 mph range and headed back to the Bay Area. On the way home I stopped at a buddies shop in Fairfield and put it on his DynoJet. The Camaro LS1 was rated at 305 hp, the Corvette at something like 315 hp. I pulled 314.6 rwhp on the dynojet that afternoon. Lou Gigliotti had picked up his LS1 Camaro on Friday and put it on his DynoJet on Saturday and it pulled 305 rwhp. I figure my extra 10 hp was the way I broke it in.
By the way the 97-98 Corvette were dynoing about 285-290 rwhp stock. I don't know that we ever figured out why the F body LS1s were so much stronger as there was little difference other than the F body had a much larger oil pan than the Y body due to packaging.
#35
Le Mans Master
Member Since: Nov 2015
Location: Lake Havasu City Arizona
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I drove mine hard and fast right off the lot. 91,300 miles and the only repair was a belt tensioner pulley. Never burns a drop of oil for every 7,500 miles or so for oil changes. Can I recommend my procedure? No. But I couldn't help myself. Most reliable car I have ever had.
#36
Followed Motoman break in. (as i have for the last 20 years with all engines.)
Yes it got some full throttle, yes it did see near red line rpm's.
No it doesn't burn oil, no it didn't melt, or break. No it's not abusive...
Yes it got some full throttle, yes it did see near red line rpm's.
No it doesn't burn oil, no it didn't melt, or break. No it's not abusive...
#38
Me, too. Mine now has 30k+, runs strong and doesn't burn any oil. Mine was on the track a Bowling Green before it had 100 miles on it.
#39
E-Ray, 3LZ, ZER, LIFT
Member Since: Sep 2007
Location: NE South Carolina
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First it's more than the engine that needs to break-in! The dif and trans gears also need time to eliminate "hot spots" that are inevitable on meshing gears. That must be done with cool fluid. An example, when we were a sponsor of the Petty Team in the early days they were still building their own engines in Level Cross. I would visit with the fellow who was responsible for engine assembly and testing. Recall when they started, like most, to "rent engines" when the restrictor plate engines were different than road course engines versus for ovals etc they were using one of their engine dyno's to slowly break in rear ends! That assured longer life and less hp loss.
The web info on, "Why it's better to seat rings with aggressive initial operation," relates to racing motorcycle and other racing engines that they break in on dyno's. Turns out ring seating is very dependent on the surface finish hone used on those versus stock engines that are expected to last many miles. Prostock Drag Race engines use a finish hone significantly different than a passenger car. They could care less about long term life as that is only a few races! The extra hp for those races is there only concern.
Reminded of Dale Inman's (the Petty Crew Chief when we started as a minor sponsor) response to my question about the 000 or some such name oil weight they were using to gain hp. I asked if that was sufficient for wear. He said, "It's good enough for the 500 miles we need!"
My Cousin John (left in pic,) an avid car racing fan, (Le Mans, Silverstone F1, Daytona 24 hour, Laguna Seca every year etc etc) now lives in Bristol VA and was recently at the Bristol NASCAR race. Dale Inman was there and looked great at ~82 (right in pic.) He remembered from years ago when I told him a company top secret that we were changing machine colors and brand name. Asked if we could take the ~30 welding and cutting machines and paint them the new colors. He wanted to know the color, which I told him it was my rule but I'd have to fire myself for the leak before we told distributors! I told him! He then said "Just send me new machines (they were about 8 years old at the time.) I asked what would he do with the old ones? He said I'll figure that out! Gave him all new machines and as recall some of the old ones went to the Petty Driving Experience fab shop and we painted some of those, "Yellow."
Sorry if facts spoil some folks fun, but whatever!
Last edited by JerryU; 02-21-2019 at 09:20 AM.
#40
Drifting
I had to drive from Atlanta to Columbus, Ohio. Knowing that the engine is not supposed to run at a constant RPM, I never used the cruise control, and always varied my speed.
Somewhere between 500-600 miles, I had my first oil change.
I now have close to 5,000 miles on it, and everything is working great (yes, I've had my 2nd oil change).
Somewhere between 500-600 miles, I had my first oil change.
I now have close to 5,000 miles on it, and everything is working great (yes, I've had my 2nd oil change).