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Redline changes as engine warms up

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Old Sep 5, 2019 | 11:50 AM
  #1  
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Default Redline changes as engine warms up

I was watching a youtube video from heather - she sells lambos in Canada and makes videos on features of the cars etc...it is fun to watch while at work. She mentioned in the lambo the redline increases in range as the engine warms up. I thought to myself that is pretty cool wish the corvette had that.

The other day it was cool enough in the morning when I was taking the corvette and saw the redline was at about 4,000 in the main dash and the hud. A few minutes later at around 6,0000 - so it looks like the corvette has the feature.
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Old Sep 5, 2019 | 12:04 PM
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Yes it most certainly does
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Old Sep 5, 2019 | 12:48 PM
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Been that way since the C7 came out.
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Old Sep 5, 2019 | 02:42 PM
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And you just noticed this wow.
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Old Sep 5, 2019 | 02:51 PM
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I've also noticed a blue line appearing I believe at around 3500 rpm. Always wondered its purpose.
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Old Sep 5, 2019 | 05:20 PM
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The blue line shows your rpm when you shifted. It goes away after a few seconds.
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Old Sep 6, 2019 | 11:16 AM
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Blue telltale line on shift will only show when shift point is >3000 RPM.
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Old Sep 6, 2019 | 11:57 AM
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Yep, Lambo copied Chevy! LoL...
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Old Sep 6, 2019 | 01:02 PM
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Actually quite common. The E39 series (1999 - 2003) M5 had the same feature.
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Old Sep 6, 2019 | 01:06 PM
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Originally Posted by 2ZORNOT2Z
Yep, Lambo copied Chevy! LoL...
Pretty much if Chevy has something, a Euro car had it 10+ years ago. Chevy isn't first to the table with anything.
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Old Sep 6, 2019 | 01:23 PM
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But I wonder if the Lambo actually has a lower rev limit on a cold engine, versus just showing a visual difference on the tach? If a manufacturer really wanted to protect a cold engine they would make the actual rev limit lower until the oil gets up to a safe temperature.
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Old Sep 6, 2019 | 01:41 PM
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I had no idea
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Old Sep 6, 2019 | 01:56 PM
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Originally Posted by speed4tu
Pretty much if Chevy has something, a Euro car had it 10+ years ago. Chevy isn't first to the table with anything.
Oh yes they are................first with Service bulletins..
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Old Sep 6, 2019 | 01:57 PM
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Originally Posted by Patman
But I wonder if the Lambo actually has a lower rev limit on a cold engine, versus just showing a visual difference on the tach? If a manufacturer really wanted to protect a cold engine they would make the actual rev limit lower until the oil gets up to a safe temperature.
They did. My 2013 C6 GS had that and I mentioned it in past threads. I could get no more than 3800 rpms on a cold motor. You tried to get on that cold motor and at about 3800 it cut off. I had a very knowledgeable forum member explain to me how it was built into the tuning from GM.
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Old Sep 6, 2019 | 03:40 PM
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Originally Posted by speed4tu
Pretty much if Chevy has something, a Euro car had it 10+ years ago. Chevy isn't first to the table with anything.
Well, almost. Corvette is first to the table with a much more affordable price.
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Old Sep 6, 2019 | 11:41 PM
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I just got my C7 and noticed that right away.
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Old Sep 7, 2019 | 05:43 PM
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The reduced yellow/red arc on our 2017 Z51 A8 goes away when the oil temperature is still down around 120'F, and coolant not much higher.
The idea of flogging the engine when the fluids are that cool sounds like a bad idea, has GM ever offered any explanation for their numbers?
Or has any outsider with good credentials commented on the GM numbers?
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To Redline changes as engine warms up

Old Sep 8, 2019 | 08:48 AM
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For those of you who bought brand new cars; did you notice the redline was low for the first 500 miles? Electronics did a little change "dance" at exactly 500 miles?

I probably wouldn't have noticed, but had a seasoned owner riding with me from Texas to Indiana and back when we picked up my new Z06!
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Old Sep 8, 2019 | 09:30 AM
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Default Euro First

Originally Posted by speed4tu
Pretty much if Chevy has something, a Euro car had it 10+ years ago. Chevy isn't first to the table with anything.
Yep, BMW is certainly first with making a whole host of cooling system components become maintenance parts by making them out of poor quality plastic. Nothing like having your expansion tank rupture and the resulting catastrophic loss of coolant end your day on the side of the road. Plastic water pump impellers....and on and on.

Mag shocks as we have them today were a Delphi imvention...the snot brands bought the technology from them...
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Old Sep 8, 2019 | 09:43 AM
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Originally Posted by dave_2012_tt
redline increases in range as the engine warms up.
It is based on coolant temperature. Watch the digital readout of water temperature and you will see the redline goes to its highest setting when the coolant reaches 175 degrees.
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