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I just saw a review on the ZR1 saying the power is limited until 500 miles in the car. Is this true? If so, what is the power limited to before the 500 miles break in?
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17,'22-'23
I know the tach redline is at 4500 until 500 miles when it moves to 6500, watch for it! I really don't believe the hp is limited prior to that though and don't forget the oil change.
Some people are easily fooled and believe because the tach shows a lower red line until 500 miles are reached that power is limited. However, the tach red line is only a mark/color on the tach. The driver can go past it if they want to.
I've been saying this was a myth since the Z06s... I had my C7 within the first couple of months of them being out, so I never could remember on that one. But my ZR1 did not have any redline restrictions when picking it up. You can see here with just 77mi on the odometer, that redline is still 6500 RPMs on the maiden voyage home from Detroit. Does anyone have a pic showing otherwise? I was calling in favors (and being told NO LOL) before ordering asking for the PCM to be unlocked and the car could be built without 4G wifi and could have the warranty voided off the line. Not going to lie, when my 4G and NAV didn't work the entire drive home, I had high hopes! LOL But I can indeed show you at least mine had no lower redline.
^^^ It actually does though. It’s the thin yellow/orange/red line above the hash marks that’s is the temporary lower “redline”. That thinner section disappears after 500 miles. Go take a look at your car now and it will be gone.
Last edited by Steve Garrett; 08-19-2018 at 04:56 PM.
Here is a close up. 84 miles ZR1 and the redline starts at 4500. The HUD shows it better. I have the close up of my 4400 miles Grand Sport at the bottom photo where the redline starts at 5800.
Some people are easily fooled and believe because the tach shows a lower red line until 500 miles are reached that power is limited. However, the tach red line is only a mark/color on the tach. The driver can go past it if they want to.
Bill
Yup, it's merely an rpm limit suggested on the display, for breakin purposes. After breakin, it will still show up prior to the engine warming up to the point that GM wants it thrashed.
^^^ It actually does though. It’s the thin yellow/orange/red line above the hash marks that’s is the temporary lower “redline”. That thinner section disappears after 500 miles. Go take a look at your car now and it will be gone.
ahh yes I can't believe I didn't notice that haha... thanks!
i wish I could afford one, but when I log on there is a first page that has a few stories on it, before I jump to forums. Sometimes I click on like with Leroy going 7s. Just above it was a story about an orange R1 from some dude in blue or something or something. In that particular story it says the car was at 640 until after 500miles then jumped to 700. Just repeating what I read......... Ron
OK, so the OP question was answered.
Next question is what damage/negative impact happens if you go ABOVE the temporary tach line during the first 500 miles?
I’m sure this topic has been beat to death over in the C7 General Discussion forum 4 years ago when the C7 was introduced.
I’ve had 2 ZO6s and accidentally gone above it during breakin with no negative effects......I take delivery of #792 next week and am thinking the same experience as the ZO6s will happen.
Ben@WeaponX seen any issues? You’re the pro here.....
OK, so the OP question was answered.
Next question is what damage/negative impact happens if you go ABOVE the temporary tach line during the first 500 miles?
I’m sure this topic has been beat to death over in the C7 General Discussion forum 4 years ago when the C7 was introduced.
I’ve had 2 ZO6s and accidentally gone above it during breakin with no negative effects......I take delivery of #792 next week and am thinking the same experience as the ZO6s will happen.
Ben@WeaponX seen any issues? You’re the pro here.....
Thanks
Hawkbarr
Nothing will happen if you exceed the recommended rpm limit during break-in. If they were really concerned about it they would actually change the rev limit. Remember, many people buy new cars without ever reading the owners manual and drive it however they want with no adverse consequences.
i wish I could afford one, but when I log on there is a first page that has a few stories on it, before I jump to forums. Sometimes I click on like with Leroy going 7s. Just above it was a story about an orange R1 from some dude in blue or something or something. In that particular story it says the car was at 640 until after 500miles then jumped to 700. Just repeating what I read......... Ron
Engines will make more power once broken in, but it's certainly not 10% and there is no secret unlocked power after 500 miles. So, guessing what you read was someone's wishful thinking
Originally Posted by Hawkbarr
OK, so the OP question was answered.
Next question is what damage/negative impact happens if you go ABOVE the temporary tach line during the first 500 miles?
I’m sure this topic has been beat to death over in the C7 General Discussion forum 4 years ago when the C7 was introduced.
I’ve had 2 ZO6s and accidentally gone above it during breakin with no negative effects......I take delivery of #792 next week and am thinking the same experience as the ZO6s will happen.
Ben@WeaponX seen any issues? You’re the pro here.....
Thanks
Hawkbarr
No, there are a lot of different views on this. Some engine builders will tell you to bring it up to temp a few heat cycles, change out the break in oil, and give it hell. Others will say break it in for 500 miles.
personally, on a new car I change the oil after 100 miles, then again at 500, and give it hell. I certainly did go over the 4500 rpm point on my 3 hour drive back from Detroit to Cincinnati, but it wasnt anything excessive. I currently have the quickest at 9.97 and fastest at 140mph quarter mile times, and I did a compression test at 3000 miles and all is good!
I'm surprised more aren't concerned with the Mag Ride 1500 mi break in period. Reading that surprised me as that's a long one for a guy who bought the car for just that.
I know this is an old thread but wanted to give my personal experience. Prior to 500 miles i gave her 5 or 6 pulls from about 15 miles per hour. It never broke loose in 1st although i rolled on the throttle. Tonight she finally crossed 500. At approximately 500.25 miles i floored it in 1st from the same speed. Totally broke loose and the rear stepped out. The engine sounded a lot meaner and it also appeared to rev quicker.
In my case full power was available after 500 miles.
I know this is an old thread but wanted to give my personal experience. Prior to 500 miles i gave her 5 or 6 pulls from about 15 miles per hour. It never broke loose in 1st although i rolled on the throttle. Tonight she finally crossed 500. At approximately 500.25 miles i floored it in 1st from the same speed. Totally broke loose and the rear stepped out. The engine sounded a lot meaner and it also appeared to rev quicker.
In my case full power was available after 500 miles.
Any difference in traction you experienced had nothing to do with the engine providing more power after you crossed 500miles. Cars have been on dynos before 500 miles and they are putting out full power, and I think Tadge has even addressed this. I’m sure you don’t think Chevrolet did something special for JUST your single car.
Any difference in traction you experienced had nothing to do with the engine providing more power after you crossed 500miles. Cars have been on dynos before 500 miles and they are putting out full power, and I think Tadge has even addressed this. I’m sure you don’t think Chevrolet did something special for JUST your single car.
Interesting. The car sure felt radically different.
I've read a few things where M7 cars are torque limited in the first 3 gears or something so you don't wreak havoc on the M7 trans, what's the deal with that?
cman, With the m7 under 2,500 rpm at WOT you don't get full boost like you get with the Z06 and thus torque in this operating range is "restricted". I think at under 500 miles at WOT you don't quite get full power as timing is pulled although once over 500 miles with premium fuel then you get full power, although the difference isn't huge. I think at around 10,000 miles the car engine/drivetrain is at optimal break in and best performance is achieved. These cars can take a lot of abuse new from the factory as in 2015 you can see the new Z06 delivery from parking lot burnout
08-18-2018, 06:58 PM
Is ZR1 power limited until 500 miles?
