Vented hoods and turbos - Page 10 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Ironsquid · 03-03-2014, 12:10 PM

Quote:

Originally Posted by blackfireball5

Ironsquid, do you prefer the Varis hood that has the small scoop with the vents over the one that has only the vents? How large of a difference does that small scoop make you think?

The naca scoop will direct air into the engine bay, the side vents pull air out. Without the naca scoop you wont have a circular air venting system and you'll just have to rely on heat rising out the vents.

blackfireball5 · 03-03-2014, 12:44 PM

I remember reading something about making any kind of scoop would disrupt the flow of air going through the radiator and that having vents alone are more effective at keeping the air flowing through the radiator and out the vents? Or maybe that was speculation and there isn't that big of a difference.

Sent from my Nexus 5 using Tapatalk

Ethan · 03-04-2014, 01:10 AM

I replaces my BRZ faux vents with the Prova real ones. I had a body shop do the work. It looks completely stock unless you are a twins owner and know what you are looking at. All it took was cutting a hole and then sealing the newly exposed metal with primer. The Prova replacement part took a bit of sanding on the backside too to get a factory looking fit. As to how much heat does it evacuate? I did not do a before and after on engine bay temps so could not really say. I can tell you that when it is 80 degrees outside and I drive the car hard, after I park I will put my hand over the vent and the heat is substantial. I presume that when I am moving, even more heat is being sucked out because of negative pressure created by the shape of the molding in front of the vent opening. If anyone knows of a tape that changes color based on temp, I would get some and stick it to the vent as a test.

As to potential water damage, I don't think so. Water would have to be going at a weird upwards angel to get into the engine bay through the side vent. I would worry about a vented hood and water damage, but not the side vents.

Finally, the real reason I did it was I hated the faux vent.

Element Tuning · 03-04-2014, 02:24 AM

Scoops bad, vents good. Anything you can do to exhaust the fenders and the engine bay will improve cooling and downforce.

Ethan · 03-14-2014, 02:03 AM

Here is a pic of my conversion. You can't tell, but the fender is cut behind the mesh of the new functional vent.

cdrazic93 · 03-14-2014, 03:23 AM

Quote:

Originally Posted by Ethan

Here is a pic of my conversion. You can't tell, but the fender is cut behind the mesh of the new functional vent.

how much did that cost? if its less than a vented hood then that's definitely do able as a cooling option for me.

King Tut · 03-14-2014, 11:12 AM

Quote:

Originally Posted by cdrazic93

how much did that cost? if its less than a vented hood then that's definitely do able as a cooling option for me.

The Prova vents are about the price of a vented hood.

http://www.rallysportdirect.com/Prov...rld-Rally-Blue

mike the snake · 03-14-2014, 12:12 PM

If you are handy with a dremel, you can make basically the exact same vents out of the BRZ fender garnishes for no $$.

mrk1 · 03-14-2014, 12:27 PM

Quote:

Originally Posted by King Tut

The Prova vents are about the price of a vented hood.

http://www.rallysportdirect.com/Prov...rld-Rally-Blue

I was all for the Prova vents and cutting the fender till I saw that price

cdrazic93 · 03-14-2014, 02:28 PM

Those are fine, I was talking like Seibon CF vented hood price lol

Sportsguy83 · 03-14-2014, 03:39 PM

Like a BOSS.

SmsAlSuwaidi · 03-14-2014, 03:43 PM

@Sportsguy83 ricer.........

Jk

Sportsguy83 · 03-14-2014, 03:45 PM

Quote:

Originally Posted by SmsAlSuwaidi

@Sportsguy83 ricer.........

Jk

I love me some R.I.C.E.!!

mike the snake · 03-14-2014, 04:59 PM

That looks SICK!

My BRZ is the same color. Did you have any trouble color matching?

Quote:

Originally Posted by Sportsguy83

Like a BOSS.

03-03-2014, 12:44 PM	#128
blackfireball5 Senior Member Join Date: Jun 2012 Drives: Scion FRS Firestorm Location: Cleveland, Ohio Posts: 538 Thanks: 459 Thanked 102 Times in 74 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	I remember reading something about making any kind of scoop would disrupt the flow of air going through the radiator and that having vents alone are more effective at keeping the air flowing through the radiator and out the vents? Or maybe that was speculation and there isn't that big of a difference. Sent from my Nexus 5 using Tapatalk __________________ Wheelwell Profile Use code TWW-BOO5TED when shopping at Wheelwell to receive 10% off your order.

03-14-2014, 02:28 PM	#136
cdrazic93 Junior Join Date: Aug 2013 Drives: a car Location: Probably at school Posts: 4,341 Thanks: 3,184 Thanked 2,512 Times in 1,502 Posts Mentioned: 20 Post(s) Tagged: 0 Thread(s)	Those are fine, I was talking like Seibon CF vented hood price lol __________________ "Ah! What music! They could have never imagined, those pioneers who invented the automobile, that it would posses us like this, our imaginations, our dreams. Men love women, but even more than that, men love CARS!"-Lord Hesketh

03-14-2014, 03:43 PM	#138
SmsAlSuwaidi Boosted Join Date: Feb 2013 Drives: Not a supra....yet Location: Riverside,CA/ Abu Dhabi,UAE Posts: 2,925 Thanks: 487 Thanked 1,203 Times in 812 Posts Mentioned: 90 Post(s) Tagged: 2 Thread(s)	@Sportsguy83 ricer......... Jk __________________ https://www.facebook.com/Smsalsuwaidiracing/

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03-04-2014, 01:10 AM	#129
Ethan Member Join Date: Jul 2012 Drives: Subaru BRZ Location: San Diego, CA Posts: 85 Thanks: 56 Thanked 40 Times in 26 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I replaces my BRZ faux vents with the Prova real ones. I had a body shop do the work. It looks completely stock unless you are a twins owner and know what you are looking at. All it took was cutting a hole and then sealing the newly exposed metal with primer. The Prova replacement part took a bit of sanding on the backside too to get a factory looking fit. As to how much heat does it evacuate? I did not do a before and after on engine bay temps so could not really say. I can tell you that when it is 80 degrees outside and I drive the car hard, after I park I will put my hand over the vent and the heat is substantial. I presume that when I am moving, even more heat is being sucked out because of negative pressure created by the shape of the molding in front of the vent opening. If anyone knows of a tape that changes color based on temp, I would get some and stick it to the vent as a test. As to potential water damage, I don't think so. Water would have to be going at a weird upwards angel to get into the engine bay through the side vent. I would worry about a vented hood and water damage, but not the side vents. Finally, the real reason I did it was I hated the faux vent.

03-04-2014, 02:24 AM	#130
Element Tuning Senior Member Join Date: Jun 2012 Drives: Hydra EMS Powered FRS Raven Black Location: Maryland Posts: 839 Thanks: 54 Thanked 1,021 Times in 365 Posts Mentioned: 61 Post(s) Tagged: 2 Thread(s)	Scoops bad, vents good. Anything you can do to exhaust the fenders and the engine bay will improve cooling and downforce.

03-14-2014, 02:03 AM	#131
Ethan Member Join Date: Jul 2012 Drives: Subaru BRZ Location: San Diego, CA Posts: 85 Thanks: 56 Thanked 40 Times in 26 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Here is a pic of my conversion. You can't tell, but the fender is cut behind the mesh of the new functional vent.

03-14-2014, 12:12 PM	#134
mike the snake Senior Member Join Date: Jul 2013 Drives: 2013 BRZ Location: Norcal Posts: 1,592 Thanks: 1 Thanked 623 Times in 378 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	If you are handy with a dremel, you can make basically the exact same vents out of the BRZ fender garnishes for no $$.

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