Skeptical
I'm new to the forum and had a question regarding Tad's reply about the cooling fix. For the M7 where has it been 100 degrees this time of year to conduct the test? Is it simulated numbers? I'm having issues believing that the minimal changes made can improve cooling to the level that a pro driver can run a full tank of gas with 100 degree temps when 15' and 16' Z's will go limp with amateur drivers in 85 degree temps.
Thanks in advance for any feedback. I'm on the fence about purchasing a 17' Z M7 and can't pull the trigger because I'm buying it mainly for track use and don't want to be disappointed.





Pretty much any fast car with a supercharger bolted to it that is designed for general public consumption is going to overheat when driven hard on a race track in 100 degree temperature. You ever see the cooling systems designed on actual race cars? Google "C7R".
If you plan to heavily track any street car, then plan on addressing many things. Tires, brakes,, suspension, cooling, safety would be a good place to start.
That said, the aux radiator, tilted bricks and bigger supercharger cover on the 17 model year have shown to help, as shown by data posted on these forums. But if you are running in very hot weather and plan to run hard, then you should also plan on contacting GSpeed or LG for their full cooling package.
Pretty much any fast car with a supercharger bolted to it that is designed for general public consumption is going to overheat when driven hard on a race track in 100 degree temperature. You ever see the cooling systems designed on actual race cars? Google "C7R".
If you plan to heavily track any street car, then plan on addressing many things. Tires, brakes,, suspension, cooling, safety would be a good place to start.
That said, the aux radiator, tilted bricks and bigger supercharger cover on the 17 model year have shown to help, as shown by data posted on these forums. But if you are running in very hot weather and plan to run hard, then you should also plan on contacting GSpeed or LG for their full cooling package.
Good points, I'm aware of boosted cars overheating I guess my expectations for the Z are a little higher, but in the end a car is a car. I've been looking into cooling upgrades but don't want to void the warranty. I spoke with a salesman at a local dealership and he said any mods will void the warranty or at least give GM an excuse to not honor the warranty. I'm in Texas so temps will be 100+ during the summer so upgrading the cooling isn't really an option if you plan on hitting the track.
I would still get a 2017 M7. Try it out then if needed go to Gspeed and they will solve your cooling problem.
I wouldn't worry too much when it comes to cooling upgrades and warranty. Extra Cooling actually protects the car. You are not adding HP or changing stock tune. GM (not the dealer) would have to prove that your upgrade had caused a failure.
I would still get a 2017 M7. Try it out then if needed go to Gspeed and they will solve your cooling problem.
I wouldn't worry too much when it comes to cooling upgrades and warranty. Extra Cooling actually protects the car. You are not adding HP or changing stock tune. GM (not the dealer) would have to prove that your upgrade had caused a failure.
Thanks for the feedback I appreciate it especially regarding the tune not having to be changed I was wondering about that.
Think some (not op ) expect way too much from these cars, some even have the ac on and complain. Video games are cheaper







