reducing C6 under hood temperature
Thread Starter
Instructor
Joined: Oct 2013
Posts: 208
Likes: 4
reducing C6 under hood temperature
2011 GS/6m AHR headers /induction shroud/ tune ......I am trying to reduce under hood temp, I do not want to wrap or ceramic coat my headers ( I know it's a very good idea)....I have a starter heat shield,, an insulator for the air intake.
thinking about 160 degree stat ( I assume there are downsides to this) and wonder about removing the decorative, fuel rail engine covers (heat trap).... the idea is to cool intake air. It's hot in So. Florida. Suggestions please....
thinking about 160 degree stat ( I assume there are downsides to this) and wonder about removing the decorative, fuel rail engine covers (heat trap).... the idea is to cool intake air. It's hot in So. Florida. Suggestions please....
Thread Starter
Instructor
Joined: Oct 2013
Posts: 208
Likes: 4
Heatshield Products : Is this the company? reviewed 3/2016 Motortrend
Heatshield Products I-M Shield
Test: More Horsepower for Less
More Horsepower for Less: Heatshield Products I-M Shield thermal barrier can add 20 hp and 20 lb-ft of torque to your Vette for just $50! Test showed 43 degree temp drop on intake manifold
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,104
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
Simplest and least expensive method ($0) is to remove the rear (cowl) rubber seal. While stopped and at low speeds heat escapes out the top and at higher speeds cooler air enters and pushes the hot air out the bottom.
BTW, while the annual average temp in Miami is higher than Phoenix, Florida's state record high is only 109F. Phoenix averages over 20 days annually of temps of 110 or more. To paraphrase the Wendy's commercial "We have the HEAT".
BTW, while the annual average temp in Miami is higher than Phoenix, Florida's state record high is only 109F. Phoenix averages over 20 days annually of temps of 110 or more. To paraphrase the Wendy's commercial "We have the HEAT".
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
7 Bolt-On Upgrades From Extreme Online Store to Level Up Your C6 Corvette
Pouria Savadkouei
Advanced
Joined: Jun 2020
Posts: 94
Likes: 51
2011 GS/6m AHR headers /induction shroud/ tune ......I am trying to reduce under hood temp, I do not want to wrap or ceramic coat my headers ( I know it's a very good idea)....I have a starter heat shield,, an insulator for the air intake.
thinking about 160 degree stat ( I assume there are downsides to this) and wonder about removing the decorative, fuel rail engine covers (heat trap).... the idea is to cool intake air. It's hot in So. Florida. Suggestions please....
thinking about 160 degree stat ( I assume there are downsides to this) and wonder about removing the decorative, fuel rail engine covers (heat trap).... the idea is to cool intake air. It's hot in So. Florida. Suggestions please....
Article from Hot Rod.
Coatings: Are They Worth It?
As a part of our test, we wanted to quantify the benefits of a coated header versus a plain uncoated black painted header. A thermal barrier ceramic coating adds considerably to the price of any header, often doubling the price. We tested two otherwise identical Hooker 1⅞-inch headers with surprising results. Running on the dyno, we found the power numbers virtually unchanged (see Average Power table on next page). Where the ceramic coating made a remarkable difference is in the heat transferred by the header. We tested the header temperature immediately after a run, and then one minute after shutdown. The coated headers measured 258 degrees F dropping to 195 degrees F a minute after shutdown. In contrast, the uncoated header measured a scalding 870 degrees, retaining 520 degrees a minute after shutdown. We didn’t need a heat gun to tell the difference in the test cell.
Last edited by HYRYSC; Mar 22, 2021 at 01:12 PM.
any performance difference???
Advanced
Joined: Jun 2020
Posts: 94
Likes: 51
Obviously there is a big difference between manifold vs headers. As far as coated headers vs uncoated, I will have to defer that to folks with more experience than myself.
Just an FYI, they quoted in the article that it could add a substantial cost to the headers and it they are coated at the factory, then that is what I found too, but I ordered mine as stainless and had them coated locally for $250 and would absolutely do this again without thinking about it.
Advanced
Joined: Jun 2020
Posts: 94
Likes: 51
Advanced
Joined: Nov 2021
Posts: 52
Likes: 23
I just removed mine last night and will see how it does later today.
Pro
Joined: Jun 2022
Posts: 749
Likes: 254
From: Florida
Changing your thermostat to a cooler one is worthless at reducing under hood temperatures. Also unless you tune the car to adjust the temperature the fans kick on at it is a waste of money. Not to mention potential lack of heat in the winter (if you live in a state you.can drive a vette in the winter). The temp of the thermostat is the.temp it opens at. The car can and will exceed that temp without an issue
Safety Car
Joined: Sep 2005
Posts: 4,203
Likes: 643
From: Orange County Ca
Mostly, a thermostat just regulates the minimum engine temp. I doubt that a lower rated thermostat will make any difference in your normal running temps.
As mentioned above, are you experiencing any heat related problems or just generally want to cool things off?
As mentioned above, are you experiencing any heat related problems or just generally want to cool things off?