follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
86SPEED
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Scion FR-S Forum | Subaru BRZ Forum | Toyota 86 GT 86 Forum | AS1 Forum - FT86CLUB > Technical Topics > Tracking / Autocross / HPDE / Drifting

Tracking / Autocross / HPDE / Drifting What these cars were built for!


User Tag List

Reply
 
Thread Tools Search this Thread
Old 08-13-2019, 10:42 PM   #1
GrabTheWheel
Senior Member
 
Join Date: Feb 2018
Drives: 16' BRZ
Location: California
Posts: 248
Thanks: 44
Thanked 107 Times in 62 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Varis version 2 hood with naca duct?

I'm curious if this hood will have a problem with the fitment because of the naca duct if I'm running an aftermarket strut bar? Should I go with version 1 without the naca duct?
GrabTheWheel is offline   Reply With Quote
Old 09-17-2019, 09:39 PM   #2
lextrueno
Senior Member
 
lextrueno's Avatar
 
Join Date: Aug 2015
Drives: 2013 Firestorm Frs
Location: Gem City, Ohio
Posts: 117
Thanks: 109
Thanked 72 Times in 43 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by GrabTheWheel View Post
I'm curious if this hood will have a problem with the fitment because of the naca duct if I'm running an aftermarket strut bar? Should I go with version 1 without the naca duct?
From what I have noticed, the NACA duct isn't intrusive into the engine bay. You may have issues routing a vent tube but most NACA ducts do not go low enough to cause issues with a strut bar. I wouldn't worry about it.

What strut bar do you have?
__________________
lextrueno is offline   Reply With Quote
Old 09-18-2019, 10:45 AM   #3
GrabTheWheel
Senior Member
 
Join Date: Feb 2018
Drives: 16' BRZ
Location: California
Posts: 248
Thanks: 44
Thanked 107 Times in 62 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by lextrueno View Post
From what I have noticed, the NACA duct isn't intrusive into the engine bay. You may have issues routing a vent tube but most NACA ducts do not go low enough to cause issues with a strut bar. I wouldn't worry about it.

What strut bar do you have?
Thanks, Iíve confirmed fitment wonít be a problem with strut bar, more worried about the hood ever actually making it here from Japan.
GrabTheWheel is offline   Reply With Quote
The Following User Says Thank You to GrabTheWheel For This Useful Post:
lextrueno (09-18-2019)
Old 09-18-2019, 12:00 PM   #4
NoHaveMSG
Senior Member
 
NoHaveMSG's Avatar
 
Join Date: Jan 2018
Drives: 13' BRZ
Location: Oregon
Posts: 1,189
Thanks: 770
Thanked 812 Times in 495 Posts
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Garage
Why would you want to bring air in from the top of your hood? There is plenty coming through the grill.
NoHaveMSG is online now   Reply With Quote
The Following User Says Thank You to NoHaveMSG For This Useful Post:
Icecreamtruk (09-18-2019)
Old 09-18-2019, 06:00 PM   #5
lextrueno
Senior Member
 
lextrueno's Avatar
 
Join Date: Aug 2015
Drives: 2013 Firestorm Frs
Location: Gem City, Ohio
Posts: 117
Thanks: 109
Thanked 72 Times in 43 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by NoHaveMSG View Post
Why would you want to bring air in from the top of your hood? There is plenty coming through the grill.

Having the vents like the ones on the varis kit, creates a nice bit of flow from the front of the car going up through the hood. This allows for better cooling and ventilation. The problem that happens is that you create a vacuum which creates a pressurized zone behind the engine. Similar to a fireplace sucking the air from other rooms.

he NACA duct itself was used for aerospace to provide a constant flow of air with no pulsation. It allow smaller amounts of positive pressure airflow to flow from the back of the engine across the coil packs and towards the front of the engine where it meets with the negative pressure area from the large front vents. The cross flow from the back to front of the engine helps cool the heat soak that typically saturates the coil packs.
__________________
lextrueno is offline   Reply With Quote
Old 09-18-2019, 06:03 PM   #6
NoHaveMSG
Senior Member
 
NoHaveMSG's Avatar
 
Join Date: Jan 2018
Drives: 13' BRZ
Location: Oregon
Posts: 1,189
Thanks: 770
Thanked 812 Times in 495 Posts
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by lextrueno View Post
Having the vents like the ones on the varis kit, creates a nice bit of flow from the front of the car going up through the hood. This allows for better cooling and ventilation. The problem that happens is that you create a vacuum which creates a pressurized zone behind the engine. Similar to a fireplace sucking the air from other rooms.

he NACA duct itself was used for aerospace to provide a constant flow of air with no pulsation. It allow smaller amounts of positive pressure airflow to flow from the back of the engine across the coil packs and towards the front of the engine where it meets with the negative pressure area from the large front vents. The cross flow from the back to front of the engine helps cool the heat soak that typically saturates the coil packs.
Didn't realize this hood was vented too, sounded like it just had naca ducts
NoHaveMSG is online now   Reply With Quote
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
MPH Carbon Fiber hood with reverse scoop and NACA ducts! xkalelx Cosmetic Modification (Interior/Exterior/Lighting) 71 07-31-2019 07:25 AM
Custom Hood vs Hood Duct Launcher Cosmetic Modification (Interior/Exterior/Lighting) 55 01-23-2018 11:24 PM
wtb varis style vis hood bjun Want-To-Buy Requests 3 12-16-2015 06:42 PM
Hood Venting, NACA Ducts Lunatic Scion FR-S / Toyota 86 GT86 General Forum 70 02-08-2015 12:10 PM


All times are GMT -4. The time now is 01:22 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Garage vBulletin Plugins by Drive Thru Online, Inc.