Does the Z/28 Heat Extrator Hood work? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Doug Halsey · 08-16-2015, 12:27 PM

Sorry for the stupid question, but I just bought a 2015 Z/28 and when I asked my dealer about the hood's heat extractor, he said it was fake (just for looks)!

I won't think it was fake, but I couldn't find anything specific on the Z/28 hood heat extractor via Google. I did however, find info on other Camaros (on this forum). Saying the heat extractor's blocked appearance was to manage water / heat extraction.

Can anyone confirm this?

Z28pex · 08-16-2015, 12:59 PM

Follow this link to the Z/28 documents
You can read about the aero and see an illustratiion of the hood vent
http://www.camaro5.com/forums/showthread.php?t=323419

Also from the Camaro Z/28 TRACK PREPARATION document
Section 4. Engine Coolant ...... and increase underhood airflow by removing the water deflector on the engine side of the hood scoop
https://www.chevrolet.com/content/da...PREP_Final.pdf

Zslash28 · 08-16-2015, 01:27 PM

Your dealer needs to be educated. Lol. Send those links to them. When the water tray is removed, the extractor will work as advertised.

Stephen12ZL1 · 08-16-2015, 03:27 PM

Not fake...it is a big hole in the hood to allow heat to escape. Once the water deflector is removed, it works well.

URBAN LEGEND · 08-16-2015, 04:12 PM

Mine has been off since day one. You can see heat waves coming out in stop and go traffic. It works.

Doug Halsey · 08-18-2015, 06:20 PM

Thanks that helps!

Unreal · 08-21-2015, 05:17 PM

That being said, it is more for aero, not for heat removal. That is just one good side effect. A vented hood reduces front end lift which is why the car has a vented hood.

sh233252 · 08-21-2015, 06:39 PM

Quote:

Originally Posted by Unreal

That being said, it is more for aero, not for heat removal. That is just one good side effect. A vented hood reduces front end lift which is why the car has a vented hood.

While you are correct in the aerodynamics, everything is tied in to make the car more functional. It is in fact for heat removal as well as stated by Al Oppenheiser. The cars front splitter and rear spoiler (and wicker bill) are used to apply the downforce and balance the car!

L99CAMA2011 · 08-21-2015, 08:16 PM

Quote:

Originally Posted by Doug Halsey

Sorry for the stupid question, but I just bought a 2015 Z/28 and when I asked my dealer about the hood's heat extractor, he said it was fake (just for looks)!

I won't think it was fake, but I couldn't find anything specific on the Z/28 hood heat extractor via Google. I did however, find info on other Camaros (on this forum). Saying the heat extractor's blocked appearance was to manage water / heat extraction.

Can anyone confirm this?

Here ya go

URBAN LEGEND · 08-21-2015, 08:59 PM

It's in the manual as well.

LateralG · 08-22-2015, 07:57 AM

Any thoughts about the risks i.e. water in engine compartment, of leaving the water deflector off completely?

Zslash28 · 08-22-2015, 09:23 AM

Quote:

Originally Posted by LateralG

Any thoughts about the risks i.e. water in engine compartment, of leaving the water deflector off completely?

Other than water and more dust/dirt, maybe easier for critters. I would consider how much time the car sits outside and how much time do you want to spend cleaning the engine.

Z28pex · 08-22-2015, 10:54 AM

Quote:

Originally Posted by Z28pex

Follow this link to the Z/28 documents
You can read about the aero and see an illustratiion of the hood vent
http://www.camaro5.com/forums/showthread.php?t=323419

Also from the Camaro Z/28 TRACK PREPARATION document
Section 4. Engine Coolant ...... and increase underhood airflow by removing the water deflector on the engine side of the hood scoop
https://www.chevrolet.com/content/da...PREP_Final.pdf

To be a little more specific, there is quite a bit of content at the link:

If you go to this link:
http://www.camaro5.com/forums/showthread.php?t=323419

then go to the document library at the bottom of the page and locate the camaro z28 tech background pdf and scroll down through the pages....

http://www.camaro5.com/forums/attach...6&d=1383603599

08-16-2015, 12:27 PM	#1
Doug Halsey Toy Collector Drives: 2015 Camaro Z/28 Join Date: Aug 2015 Location: Brunswick GA Posts: 133 View My Garage	Does the Z/28 Heat Extrator Hood work? Sorry for the stupid question, but I just bought a 2015 Z/28 and when I asked my dealer about the hood's heat extractor, he said it was fake (just for looks)! I won't think it was fake, but I couldn't find anything specific on the Z/28 hood heat extractor via Google. I did however, find info on other Camaros (on this forum). Saying the heat extractor's blocked appearance was to manage water / heat extraction. Can anyone confirm this? __________________

08-16-2015, 12:59 PM	#2
Z28pex Drives: 2015 Z28 Join Date: Jul 2015 Location: Alabama Posts: 47	Follow this link to the Z/28 documents You can read about the aero and see an illustratiion of the hood vent http://www.camaro5.com/forums/showthread.php?t=323419 Also from the Camaro Z/28 TRACK PREPARATION document Section 4. Engine Coolant ...... and increase underhood airflow by removing the water deflector on the engine side of the hood scoop https://www.chevrolet.com/content/da...PREP_Final.pdf Last edited by Z28pex; 08-16-2015 at 01:12 PM. Reason: correct spelling

08-16-2015, 03:27 PM	#4
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,816	Not fake...it is a big hole in the hood to allow heat to escape. Once the water deflector is removed, it works well. __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

08-16-2015, 04:12 PM	#5
URBAN LEGEND Drives: 20 X3M CP & 19 ZL1 1LE A10 Join Date: Jun 2013 Location: Brenham, TX Posts: 3,517	Mine has been off since day one. You can see heat waves coming out in stop and go traffic. It works. __________________ 🔺22 RS E TRON GT 🔺21 Model S Plaid

08-18-2015, 06:20 PM	#6
Doug Halsey Toy Collector Drives: 2015 Camaro Z/28 Join Date: Aug 2015 Location: Brunswick GA Posts: 133 View My Garage	Thanks that helps! __________________

08-16-2015, 01:27 PM	#3
Zslash28 Jumanji Drives: '14 Z/28 - AGM - No A/C Join Date: Mar 2014 Location: Alaska Posts: 1,688	Your dealer needs to be educated. Lol. Send those links to them. When the water tray is removed, the extractor will work as advertised.

08-21-2015, 05:17 PM	#7
Unreal Drives: 2006 Z06 Join Date: Oct 2010 Location: Gilbert, AZ Posts: 5,712	That being said, it is more for aero, not for heat removal. That is just one good side effect. A vented hood reduces front end lift which is why the car has a vented hood. __________________ Nick Corvette Z06 -1200ish rwhp

08-21-2015, 08:59 PM	#10
URBAN LEGEND Drives: 20 X3M CP & 19 ZL1 1LE A10 Join Date: Jun 2013 Location: Brenham, TX Posts: 3,517	It's in the manual as well. __________________ 🔺22 RS E TRON GT 🔺21 Model S Plaid

08-22-2015, 07:57 AM	#11
LateralG Drives: 2014 Camaro Z28 Join Date: Jan 2015 Location: Southeast PA Posts: 45	Any thoughts about the risks i.e. water in engine compartment, of leaving the water deflector off completely? Last edited by LateralG; 08-22-2015 at 08:35 AM.