View Poll Results: If you've Overheated What is Your Stage Aero 1, 2 or 3
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ZO6 overheating issues ***MEGA Merge***
04-30-2015, 02:17 AM
#2021
guys,there was a trick -back in the day,
on overheating panteras,leave the hood on the safety latch[raising it up 1-2'']we would jam a pop can wrapped in a rag under it,doing this forced air out the back side of the engine compartment,,this would be a free try to see if any more airflow would help or hurt
gm spend millions on airflow thou
an other trick might be ,just remove the hood
on overheating panteras,leave the hood on the safety latch[raising it up 1-2'']we would jam a pop can wrapped in a rag under it,doing this forced air out the back side of the engine compartment,,this would be a free try to see if any more airflow would help or hurt
gm spend millions on airflow thou
an other trick might be ,just remove the hood
04-30-2015, 08:41 AM
#2025
I applaud Bob for creating this thread with proposed solutions. Those shroud pieces *might* be there to direct water/snow/ice away from engine components that could have a detrimental impact over the life of the car. Frankly I don't know.
While we can speculate as to whether or not it will work it seems like this is fairly easy to test. Folks that are tracking the car and having overheating issues try removing those pieces at the track after you start having issues. Let's see if it helps.
The same goes for Lawdogg's trick of removing the weatherstrip at the base of the windshield.
I'll have my C7Z at VIR at the end of May and end of June. If I start having temp issues I'll try it myself.
While we can speculate as to whether or not it will work it seems like this is fairly easy to test. Folks that are tracking the car and having overheating issues try removing those pieces at the track after you start having issues. Let's see if it helps.
The same goes for Lawdogg's trick of removing the weatherstrip at the base of the windshield.
I'll have my C7Z at VIR at the end of May and end of June. If I start having temp issues I'll try it myself.
04-30-2015, 08:52 AM
#2026
Scraping the splitter.
I applaud Bob for creating this thread with proposed solutions. Those shroud pieces *might* be there to direct water/snow/ice away from engine components that could have a detrimental impact over the life of the car. Frankly I don't know.
While we can speculate as to whether or not it will work it seems like this is fairly easy to test. Folks that are tracking the car and having overheating issues try removing those pieces at the track after you start having issues. Let's see if it helps.
The same goes for Lawdogg's trick of removing the weatherstrip at the base of the windshield.
I'll have my C7Z at VIR at the end of May and end of June. If I start having temp issues I'll try it myself.
While we can speculate as to whether or not it will work it seems like this is fairly easy to test. Folks that are tracking the car and having overheating issues try removing those pieces at the track after you start having issues. Let's see if it helps.
The same goes for Lawdogg's trick of removing the weatherstrip at the base of the windshield.
I'll have my C7Z at VIR at the end of May and end of June. If I start having temp issues I'll try it myself.
S.
04-30-2015, 09:46 AM
#2027
Advanced
Not to sound like a jerk, but the only way I see this working is if there is an inherent tradeoff between downforce and cooling. If removing the duct improves both, GM would have done it. It makes no sense to make additional parts to achieve all around less output. They can sell Corvettes with or without a heat shroud. It's all under the hood anyway. It has no marketing purpose.
If you remove that duct you are essentially removing a clean, unrestricted airway, without it you will almost certainly kill front end downforce. I won't deny that it has a chance of cooling the engine compartment, but I'd rather take it easy on the throttle than mess with the aero on one the most balanced cars around.But, in the name of science, go for it! Analysis means nothing without experimental data.
04-30-2015, 12:32 PM
#2028
05-02-2015, 09:55 PM
#2030
Le Mans Master
Overheating TODAY......at MSR Cresson
Our local club had a track day at MSR Cresson. Ambient temperature was about 82 degrees F. A C7 (Z51) M7 StingRay overheated and spit water out the overflow at the end of a 20 minute session. THEN, at the end of the next session, the driver told me that he was experiencing "significantly over 300 degrees OIL temperature..." (in 20 minutes???).
05-03-2015, 05:47 AM
#2033
Because there is no Z51 section perhaps? And Z51 is a track pack and most people who post in the other C7 sections do not seem to post much about the track while lots of track related posts in this section. Maybe we need a section on called C7 on Road Racing Tracks.
05-05-2015, 10:56 PM
#2037
I tried this today
Removed the duct and the hood shroud as well as the weatherstripping on the firewall. Lowered my temps 10 degrees - with ac on - 210 max temp. With AC off the temp was fluctuating between 195 and 205, would stay mostly around the 200 mark (15 - 20 degree drop).
I noticed a few really good things - first: when the fan comes on a massive amount of air comes through the hood that was previously trapped in the engine bay. Second: the air intake was cooler because the air being pushed by the fan was getting out of the engine bay.
I noticed no difference in noise, rattles, or anything like that when driving
It too a total of 5 minutes to remove the parts, and would take about 10 minutes to put back on. For the drop in temps I would say this is a good mod.
I'm going to be playing around with a few things with the car - I believe that there are a few basic and easy things that can be done to this car to keep it really cool. I have the spacers and the tank from Formatto coming and a 170 thermostat as well. E85 will be added, and maybe even some meth - this should keep this beast super cool and consistent.
Removed the duct and the hood shroud as well as the weatherstripping on the firewall. Lowered my temps 10 degrees - with ac on - 210 max temp. With AC off the temp was fluctuating between 195 and 205, would stay mostly around the 200 mark (15 - 20 degree drop).
I noticed a few really good things - first: when the fan comes on a massive amount of air comes through the hood that was previously trapped in the engine bay. Second: the air intake was cooler because the air being pushed by the fan was getting out of the engine bay.
I noticed no difference in noise, rattles, or anything like that when driving
It too a total of 5 minutes to remove the parts, and would take about 10 minutes to put back on. For the drop in temps I would say this is a good mod.
I'm going to be playing around with a few things with the car - I believe that there are a few basic and easy things that can be done to this car to keep it really cool. I have the spacers and the tank from Formatto coming and a 170 thermostat as well. E85 will be added, and maybe even some meth - this should keep this beast super cool and consistent.
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Harbgrogan (08-02-2019)
05-05-2015, 11:13 PM
#2039
Racer
Member Since: Jun 2014
Location: Panama City Florida
Posts: 495
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Not to sound like a jerk, but the only way I see this working is if there is an inherent tradeoff between downforce and cooling. If removing the duct improves both, GM would have done it. It makes no sense to make additional parts to achieve all around less output. They can sell Corvettes with or without a heat shroud. It's all under the hood anyway. It has no marketing purpose.
Easy enough to undo, I suppose, so try it and let us know
05-05-2015, 11:26 PM
#2040
Safety Car
TRACK DAY STUFF:
I like the suggestion above (dmaxx3500) of wedging the rear of the hood open some for additional underhood air/heat removal. No removal of parts and very quick to return to stock; also the removing of the firewall weather stripping will do the same but no where as large of a rear opening as wedging the rear of the hood open.
Last edited by C7/Z06 Man; 05-06-2015 at 12:16 AM.