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You're right these cars run hot. When I get caught in traffic, sometimes I get a little nervous and click the AC on then off, just to activate the electric cooling fan. I've seen coolant temp up as high as 235. 😳
@@Cokie907 I was doing the same thing for a while turning on my AC just to kick on the fans. It really is crazy that they set the second fan to come on at 235!
Great vid! Simple and easy to understand for any C5 - C6 Vette owner. However, an additional yearly maintenance item was missed. At vid time 1:18 the chance to explain about cleaning the radiator - and showing the dust or debris that gets trapped on the radiator was missed. It clearly shows 1/3 of the radiator covered with environmental dust that will prevent air flow, hence, adds to over heating & cooling the engine. Regardless, I do agree with changing the settings of the fans to help cool the engine sooner. Nice job.
Don't know if you know that the build sheet is stuffed into the front part of the frame (rectangle steel ) nothing to do with the heat but I was glad to find out "02" convertible owned since 1/2005
That’s not why they “run hot”. The cooling system is reversed from most other small blocks. The thermostat is after the radiator, not in front of it, and the extra temp is helpful for the engine’s efficiency. If your temp gauge is below the redline, it’s not running hot. Anything that makes fans come on faster or putting on a “cooler” thermostat just makes your engine burn fuel less efficiently longer.
@@jrbdtx during normal driving the C5 operates around 190-210 F. This is the temperature they are designed to run during driving with the stock valence that I mentioned. Without it, the car increases in temperature significantly while driving. But the temperatures of 235 are seen at idle, not when driving so your “efficiency” argument doesn’t really make sense. Also the thermostat does not make an engine run hotter or colder. All coolant in the system will hit an equilibrium set by air flow through the radiator regardless of what type of thermostat is in the car.
@@jrbdtx not to mention, the PCM pulls timing to avoid detonation after 235. So obviously this is hot enough to still be concerning. And heat soak after shutting off the car can also cause damage depending on how hot the system gets. The efficiency that you are referring to is negligible compared to the damage that could be caused if the car is being run hard at the track, so for my use it’s best to keep it mildly cooler
finally , a reply with some reasonable thought. While not every design is perfect, running the product in death Valley to check for any cooling system problems is a good final test and used by every manufacturer I have heard of selling into the U.S. market.
I found that installing the Dewitt radiator and fan upgrade kit with 160 thermostat and new factory air dam with additional big mouth air dam I run 180-195 on the hottest days in so cal note all parts are direct fit but not cheap neither is your engine
Wow, I have the same color and rims on my vett, mine is a 2000 and if you reverse the intake dam it scoops up the air and it's only a few degrees but it helps
My C5 is stock height but the air dam was scraping sh*t all the time so I had the bottom 1.25 inches shaved off now its fine. And no inceaseed engine temps. Do it !
My 14 Camaro SS doesn’t even get to halfway on the gauge. 160 degree thermostat and Melling high volume oil pump. Also you can set your fans to come on when you want through tuning.
@@TJsVette yeah I did back in January of this year but literally 3 hours before this video I took it on a dirt road right after it rained so that’s why it looks so bad 🤣
Gotcha hahaha. Living in Florida where the temps get over 100 in the summer, I decided to upgrade my radiator to a dewitts. Hot days it stays around 195 to 205 with no tuning. Def worth the price.
Just disovered your channel. A few years ago, I was having bad overheating issues with my 1998 C5. After seeing a video of a shop replacing a C5s Radiator. And after the mechanic took the old one out, he held it upright on the garage floor and let it fall. It blew my mind how much dirt & sand was in it! So I knew after 12 years of ownership, mine was probably that bad. I decided to replace my radiator with a DeWitt. I also decided to replace my condenser, fans and air dam (just due to age). I showed my mechanic that video and asked if he would make a video of mine. He did and it was horrible! No more overheating after that 👍 But I haven't done any mods to my engine. Love your C5. Mine is Artic white with pops of red 😎
@@ahappyimago that’s a great question! Usually when cruising around these cars tend to stay around the 195-200 degree temperature range. To me that seems like the ideal temperature for the C5. Because of how hot it gets here during the summer and the constant stop and go traffic, in my opinion I think 235 degrees is too hot for the engine. Especially since I drive it hard and bring it to the track occasionally I would like to give myself more of a buffer so I don’t have to worry about overheating. Obviously the stock settings work okay, but I like to be on the cautious side of things when I can!
@@milehighmisfits if you think running outside of the design specifications is cautious or has some kind of advantage for you, live it up. maybe after more time investigating the design, you will be better informed , and then might not follow your opinions or give advice about unknown system design goals.
@@sipnscoot3049 i mean yes, but what’s the fun in having a car like this if you don’t modify it? That’s pretty boring. Plus engineers don’t always get things right the first time. (LS1 rocker arm needle bearings for example)
@@milehighmisfits in this case they did. The way they wanted the air to come from underneath the car, they engineered that way. Arrow dynamics. Has its purpose.
@@milehighmisfits I would point out the obvious fact that the needle bearings were a manufacturing problem, not a design flaw. If you choose to change away from the original design specification on any system, have fun. But modern cars are designed to squeeze the utmost efficiency out of every ignition event, so if you change something away from stock , there is a good chance you are screwing up the as designed efficiency . And efficiency is power.
@@milehighmisfits just because one doesn't investigate the design doesn't mean they know enough to improve it. Believe me, a design engineer job at GM is not filled by scrubs.
If you want to order one of the C5 Corvette "Millennial Paycheck, Boomer Taste" T-Shirts,
or New Edge Mustang "Boosting My Ego One PSI at a Time" T-Shirts,
Reach out to MHM on Instagram and we will get one shipped out to you!
Follow the link here to message us and order! --------> instagram.com/milehighmisfits/
Each shirt is $25 USD SHIPPED!
You're right these cars run hot. When I get caught in traffic, sometimes I get a little nervous and click the AC on then off, just to activate the electric cooling fan. I've seen coolant temp up as high as 235. 😳
@@Cokie907 I was doing the same thing for a while turning on my AC just to kick on the fans. It really is crazy that they set the second fan to come on at 235!
I replaced my thermostat and radiator and it fixed the issue. It was diagnosed by a professional mechanic
Great vid! Simple and easy to understand for any C5 - C6 Vette owner. However, an additional yearly maintenance item was missed. At vid time 1:18 the chance to explain about cleaning the radiator - and showing the dust or debris that gets trapped on the radiator was missed. It clearly shows 1/3 of the radiator covered with environmental dust that will prevent air flow, hence, adds to over heating & cooling the engine. Regardless, I do agree with changing the settings of the fans to help cool the engine sooner. Nice job.
My C4 ran super hot, 160 degree thermostat, Callaway radiator, and chip turning the fan on sooner fixed it.
You turn the AC ON? I live in Texas. Bought my Corvette in May. I don't think I've ever turned the AC OFF.
Don't know if you know that the build sheet is stuffed into the front part of the frame (rectangle steel ) nothing to do with the heat but I was glad to find out "02" convertible owned since 1/2005
That’s not why they “run hot”. The cooling system is reversed from most other small blocks. The thermostat is after the radiator, not in front of it, and the extra temp is helpful for the engine’s efficiency. If your temp gauge is below the redline, it’s not running hot. Anything that makes fans come on faster or putting on a “cooler” thermostat just makes your engine burn fuel less efficiently longer.
@@jrbdtx during normal driving the C5 operates around 190-210 F. This is the temperature they are designed to run during driving with the stock valence that I mentioned. Without it, the car increases in temperature significantly while driving. But the temperatures of 235 are seen at idle, not when driving so your “efficiency” argument doesn’t really make sense. Also the thermostat does not make an engine run hotter or colder. All coolant in the system will hit an equilibrium set by air flow through the radiator regardless of what type of thermostat is in the car.
@@jrbdtx not to mention, the PCM pulls timing to avoid detonation after 235. So obviously this is hot enough to still be concerning. And heat soak after shutting off the car can also cause damage depending on how hot the system gets. The efficiency that you are referring to is negligible compared to the damage that could be caused if the car is being run hard at the track, so for my use it’s best to keep it mildly cooler
I prefer it running at 228, get the oil temp hotter to burn off any moisture you have in the oil.
Call me crazy, but it almost seems like the engineers knew what they were doing! 😁
@@JustSomeJoe-dp5rp yes the air valence does its job well!
finally , a reply with some reasonable thought. While not every design is perfect, running the product in death Valley to check for any cooling system problems is a good final test and used by every manufacturer I have heard of selling into the U.S. market.
I found that installing the Dewitt radiator and fan upgrade kit with 160 thermostat and new factory air dam with additional big mouth air dam I run 180-195 on the hottest days in so cal note all parts are direct fit but not cheap neither is your engine
I put a Dewitt radiator in my C6 zo6 and it run 20 degrees cooler it runs 205 all day long the stock is one core with plastic ends GM junk!!!!
My c4 runs hot in heavy traffic, i just stopped taking the bad routes during rush hour, pretty simple fix.
Another simple fix is to turn on the AC.
Wow, I have the same color and rims on my vett, mine is a 2000 and if you reverse the intake dam it scoops up the air and it's only a few degrees but it helps
My vette is pretty low so I just trimmed my air dam by maybe an inch or so and the splitter I have also helps direct airflow
@@c5mourn great idea! Honestly I might have to do that on mine!
My C5 is stock height but the air dam was scraping sh*t all the time so I had the bottom 1.25 inches shaved off now its fine. And no inceaseed engine temps. Do it !
I have a Diablo Sport U7198 performance tune loaded & I’ve never seen over 190°.
the tigershark body kit should solve all the cooling problems! 😂
My 14 Camaro SS doesn’t even get to halfway on the gauge. 160 degree thermostat and Melling high volume oil pump. Also you can set your fans to come on when you want through tuning.
Set your fans to come on at 195 and 205
Damn, that C5 looks similar to my C5. I have a few old videos that I posted years back.
@@josels1292 oh yeah very similar! Even has a sticker in the same spot! Lol just two different types of C6 wheels
Why you already have merch with less than 2,000 subscribers?
@@mcdonalds8979 TH-cam isn’t the only place we have videos, friend. And there’s no minimum subscriber requirement to make some bad ass shirts!
You need to clean your radiator out for sure. You can see the dirt lol
@@TJsVette yeah I did back in January of this year but literally 3 hours before this video I took it on a dirt road right after it rained so that’s why it looks so bad 🤣
Gotcha hahaha.
Living in Florida where the temps get over 100 in the summer, I decided to upgrade my radiator to a dewitts. Hot days it stays around 195 to 205 with no tuning. Def worth the price.
@@TJsVette I've heard great things about the dewitts radiators! I might need to invest in one of those!
Just disovered your channel. A few years ago, I was having bad overheating issues with my 1998 C5. After seeing a video of a shop replacing a C5s Radiator. And after the mechanic took the old one out, he held it upright on the garage floor and let it fall. It blew my mind how much dirt & sand was in it! So I knew after 12 years of ownership, mine was probably that bad. I decided to replace my radiator with a DeWitt. I also decided to replace my condenser, fans and air dam (just due to age). I showed my mechanic that video and asked if he would make a video of mine. He did and it was horrible!
No more overheating after that 👍 But I haven't done any mods to my engine.
Love your C5. Mine is Artic white with pops of red 😎
@@lorigilbert3173 awesome! Well I’m glad you got the issue sorted out! And thank you very much, I do love the arctic white! 😁
Why wouldn’t they just do it themselves? Surely there was a reason they let it get that hot?
@@ahappyimago that’s a great question! Usually when cruising around these cars tend to stay around the 195-200 degree temperature range. To me that seems like the ideal temperature for the C5. Because of how hot it gets here during the summer and the constant stop and go traffic, in my opinion I think 235 degrees is too hot for the engine. Especially since I drive it hard and bring it to the track occasionally I would like to give myself more of a buffer so I don’t have to worry about overheating. Obviously the stock settings work okay, but I like to be on the cautious side of things when I can!
@@milehighmisfits weird I would think the manufacturer thought the same
@@ahappyimago yeah it’s something that makes a lot of people uncomfortable!
It's for emissions reasons... Well known and easy work around
@@milehighmisfits if you think running outside of the design specifications is cautious or has some kind of advantage for you, live it up. maybe after more time investigating the design, you will be better informed , and then might not follow your opinions or give advice about unknown system design goals.
That’s why engineers, engineer the car. All its parts have a purpose. Don’t mess with it!!
@@sipnscoot3049 i mean yes, but what’s the fun in having a car like this if you don’t modify it? That’s pretty boring. Plus engineers don’t always get things right the first time. (LS1 rocker arm needle bearings for example)
@@milehighmisfits in this case they did. The way they wanted the air to come from underneath the car, they engineered that way. Arrow dynamics. Has its purpose.
@@milehighmisfits I would point out the obvious fact that the needle bearings were a manufacturing problem, not a design flaw. If you choose to change away from the original design specification on any system, have fun. But modern cars are designed to squeeze the utmost efficiency out of every ignition event, so if you change something away from stock , there is a good chance you are screwing up the as designed efficiency . And efficiency is power.
@@richardelliott8352 please refer to my comment on your main post
Are you implying engineers design perfect systems? If so, then you are naive. As well as @richardelliott8352
Theyre designed to run that hot.
@@ah4800 just because it is designed that way doesn’t mean it’s good unfortunately
@@milehighmisfits just because one doesn't investigate the design doesn't mean they know enough to improve it. Believe me, a design engineer job at GM is not filled by scrubs.
They are supposed to run hot. Duh!