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Have a 2016 M7 and have tracked it quite a bit with no overheating.
Like Bill said in post# 15, the secondary radiator lowers the engine temps. I did a couple track events before installing the secondary radiator in my 2016, but didn't have any issues prior to the install. Afterwards things are cooler, so I'm happy with having installed it.
But, based on no problems prior, I think the M7 just doesn't have the overheating problem of the A8.
I've instructed in 3 or 4 student's A8 Z06's, and everyone has overheated. And I've talked with probably 5 or 6 owners of A8 Z06's in the pits at track events who have overheated.
sorry, no issues with my A8 2015 Z06. Live in Northeast Texas. Actually had her out today for a spirited ride. BTW never have to put her to sleep in ET.
This poll is useless. I had a 2014 Z51 which failed due to overheating issues every time I took it to the track, AFM actuators failed every single time, a part the Z06 does not have. But my M7 car also pinned the transmission temperature gauge and the car's cooling system overheated giving me the " Engine overheating - Idle Engine" warning. GM knew this was an issue, and offered me a buyback, and refused to sell me a Z06 as they said through my dealer that they estimated I would "have issues with it" as well. But my buddy with his Z06 M7 did not overheat on track, because unlike me, he simply did not drive the car near its limit, but he drove fast as the Z06 is a very fast car on track. He usually short shifted, did not use 2nd gear, and just did not run the fastest laps the car was capable of. I drove my C7 at its limit, and it just overheated every day I took it to the track, so I got rid of it. If you drive on the street or like 95% of drivers on the track that do not push their car's to its limit, you will not overheat. But if you drive the car really fast, things start to unwind. A general poll of Z06 owners will simply not tell you that the car has insufficient cooling to run flat out on track, which it does, and I personally had 3 Z06's with manual transmissions on a track I regularly run on, all fast drivers.
Last edited by descartesfool; 12-21-2017 at 07:07 PM.
This poll is useless. I had a 2014 Z51 which failed due to overheating issues every time I took it to the track, AFM actuators failed every single time, a part the Z06 does not have. But my M7 car also pinned the transmission temperature gauge and the car's cooling system overheated giving me the " Engine overheating - Idle Engine" warning. GM knew this was an issue, and offered me a buyback, and refused to sell me a Z06 as they said through my dealer that they estimated I would "have issues with it" as well. But my buddy with his Z06 M7 did not overheat on track, because unlike me, he simply did not drive the car near its limit, but he drove fast as the Z06 is a very fast car on track. He usually short shifted, did not use 2nd gear, and just did not run the fastest laps the car was capable of. I drove my C7 at its limit, and it just overheated every day I took it to the track, so I got rid of it. If you drive on the street or like 95% of drivers on the track that do not push their car's to its limit, you will not overheat. But if you drive the car really fast, things start to unwind. A general poll of Z06 owners will simply not tell you that the car has insufficient cooling to run flat out on track, which it does, and I personally had 3 Z06's with manual transmissions on a track I regularly run on, all fast drivers.
You missed the point of the poll. It has nothing to do with "only on the track." It is to measure the general population of Z06's being used however they get used against general public perception of the C7Z06 overheating issue, which is that there is concern they can't make it to Starbucks. Please read the thread before commenting, I haven't said anything new in this post. Thanks.
I've had two C7Zs, one A8 and one M7 and I would honestly never consider it a track car just because it bears the Z06 badge, because it has a supercharger and it's been common knowledge for at least 50 years that blowers on a road course don't mix....not to mention torque converter automatics lopped on top of that.
15 Z06 M7 I have it at the dealership now. I do spirited driving and really never look at the temps but it is in bursts...
Street temps haven't tracked yet but it will over heat for sure.
Has it over heated or went into Limp mode.. NO I haven't pushed but I know it will.
113* day in Vegas sat at 133* on freeway going 20-30 mph. Cranked heater to help keep it cool. If no heater it probably would of over heated.
88* in So Cal freeway driving 60 mph runs at 122* No spirited driving.
While driving it to the dealer Monday. 55* 40-50 mph runs at 195-197* Stop at stop light climbs to 203* would probably go higher if lights were longer.
15 Z06 M7 I have it at the dealership now. I do spirited driving and really never look at the temps but it is in bursts...
Street temps haven't tracked yet but it will over heat for sure.
Has it over heated or went into Limp mode.. NO I haven't pushed but I know it will.
113* day in Vegas sat at 133* on freeway going 20-30 mph. Cranked heater to help keep it cool. If no heater it probably would of over heated.
88* in So Cal freeway driving 60 mph runs at 122* No spirited driving.
While driving it to the dealer Monday. 55* 40-50 mph runs at 195-197* Stop at stop light climbs to 203* would probably go higher if lights were longer.
sounds like its running at operating temperature.....thermostat doesn't even begin to open until 195 and is not fully open until 205 or so....
hopefully you voted no, based on your reality rather than your fears. this is a perfect example of the perception issue. you don't have a problem even remotely but you think you do or will. let us know when you experience limp mode.
sounds like its running at operating temperature.....thermostat doesn't even begin to open until 195 and is not fully open until 205 or so....
hopefully you voted no, based on your reality rather than your fears. this is a perfect example of the perception issue. you don't have a problem even remotely but you think you do or will. let us know when you experience limp mode.
I didn't vote, I did mess up and have my temps off by 100*
So 233 with heater on is normal? 222 driving on freeway normal? But I was under the impression the thermo is a 180*.
I didn't vote, I did mess up and have my temps off by 100*
So 233 with heater on is normal? 222 driving on freeway normal? But I was under the impression the thermo is a 180*.
Is it "normal," yes....Does it make you feel warm and fuzzy? Well warm yes, fuzzy, doubt it....
Have a look at this pic, the car isn't even really trying to cool off until over 225 and at low load, low speed, and some of the highest ambient temps in the country I am not surprised your car was running 233, heater or not. There was no airflow over the cooling system, something you get a lot of at speed, the ECM is programmed to run hot at low load, and the stock fans don't spin up until 225.
A 160 thermostat in your climate would make a big difference, coupled with programming the fans to come on accordingly (I know I know you shouldn't have to do anything it should be perfect from Chevrolet). Let's think about that, perfect from Chevrolet, lol.....
Most cars have dummy gauges, I bet that all the cars around you going slow in the heat are running just as hot but they have no way of knowing so they simply don't care.
Guys there is a sticky with over 5000 posts on this issue at the top of the page. Of course these cars over heat on track, do we really need a new thread on it?
I've had two C7Zs, one A8 and one M7 and I would honestly never consider it a track car just because it bears the Z06 badge, because it has a supercharger and it's been common knowledge for at least 50 years that blowers on a road course don't mix....not to mention torque converter automatics lopped on top of that.
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Mine's overheated, A8, only on the track and when it was stock. These cars require a little work if you're going to push them to the limit on the track, we all know that.
Guys there is a sticky with over 5000 posts on this issue at the top of the page. Of course these cars over heat on track, do we really need a new thread on it?
It's a poll, you can vote and not type out a post. This thread is not meant to discuss overheating, it's supposed to be binary. Of course, you can expect people will want to weigh in or give their opinion on the matter, that's how the world and humanity works. Let me guess, you're in IT. ;-)
Last edited by Higgs Boson; 12-22-2017 at 10:23 AM.
Mine's overheated, A8, only on the track and when it was stock. These cars require a little work if you're going to push them to the limit on the track, we all know that.
I agree, I am not asking because I am curious. The poll is just to illustrate a ratio not clouded by repeat posts and mixed arguments.
If 14% of Z06 owners are going into limp mode regardless of use that is a LOT, more than I would have expected. However, I really would like to get over 1000 polled but maybe there aren't as many Z06 owners here as I have assumed.....
Personally I think there is a lot of interesting things that can be learned from this.
12-21-2017, 05:46 PM
