Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB

- Forced Induction (https://www.ft86club.com/forums/forumdisplay.php?f=78)

- - Vented hoods and turbos (https://www.ft86club.com/forums/showthread.php?t=39897)

I noticed a temp decrease switching from the siebon TS hood to the Varis Arising 2 hood with Naca duct by about -5F while moving.

Stand still, no difference, all fans.

Quote:

Originally Posted by mike the snake (Post 1760182)

I'd like to know people's thoughts on which of these hoods would work best with a front mounted turbo like FB.

VS style: http://seiboncarbon.com/store/produc...ubaru-brz.html

TS style: http://seiboncarbon.com/store/produc...ubaru-brz.html

DV style: http://seiboncarbon.com/store/produc...ubaru-brz.html

TM style: http://seiboncarbon.com/store/produc...ubaru-brz.html

VT style: http://seiboncarbon.com/store/produc...l#!prettyPhoto

Carbon Creations hood: http://www.carid.com/2013-subaru-brz...-15930380.html

Amazon.com: 2013-2014 Scion FR-S Subaru BRZ Carbon Creations 86-R Hood - 1 Piece: Automotive

The only ones I like are the TS and VT styles. The rest don't seem like they have enough ventalation. The VT style scoop in the back might be useful if there was some custom ducting under it to direct the air to functional side vents.

Top pick would be TS, second would be VT, if I had to choose a third it would be a Varis Arising hood.

This was coolant temps? Or engine bay temps?

Quote:

Originally Posted by Ironsquid (Post 1761379)

I noticed a temp decrease switching from the siebon TS hood to the Varis Arising 2 hood with Naca duct by about -5F while moving.

Stand still, no difference, all fans.

Quote:

Originally Posted by dwx (Post 1759919)

Is that the one with the six side vents or the big vent in front? Hot air rises so it's not surprising at all. I'd be interested if air is being pulled out under speed.

Yes it is the one with the 6 vents 3 on each side.

I also have the cooling plate up front which "somewhat" helps with the direction of the air flow towards the vents.

Quote:

Originally Posted by mike the snake (Post 1761763)

This was coolant temps? Or engine bay temps?

Coolant temps ~25-40mph, can probably assume due to less radiant heat from underhood.

I don't have a way currently of measuring underhood temps, and then I don't have the data from stock/seibon hood to compare to.

Quote:

Originally Posted by Ethan (Post 1598569)

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

http://i73.photobucket.com/albums/i2...psac2eb89a.jpg

Any chance of getting a shot inside the hood? Looks great!

I got a chance to see some vented hoods in person, and the VIS AMS hood looked to have a LOT more venting area , much bigger openings (6).

Quote:

Originally Posted by bama_brz (Post 1853592)

Any chance of getting a shot inside the hood? Looks great!

X2...

Quote:

Originally Posted by bama_brz (Post 1853592)

Any chance of getting a shot inside the hood? Looks great!