Twin air ducts

Elmo370z · 10-02-2014, 08:21 AM

Just have a basic question about twin air ducts. Do they really help increase hp? I have stillen gen 3 intakes installed.

synolimit · 10-02-2014, 08:46 AM

The bumper vents?

Elmo370z · 10-02-2014, 10:35 AM

They are two carbon fiber cut outs they go in the bumper

Akurei · 10-02-2014, 11:28 AM

As far as I'm aware, if the cut outs are at the bottom corners of the bumper, they are brake ducts. If it is the cut outs above where the license plate should be, it will give more airflow and cooler air into your CAI. Not sure if it does anything noticeably dramatic. But you will indeed have cool air come in and possibly cool your engine a little more since you have to cut the styrophone. Probably have a good gap in there

DR_ · 10-02-2014, 02:43 PM

I think he means these. They should help.

dmhenderson · 10-03-2014, 01:38 PM

Oh hey, those are actually pretty neat. Dunno how much it would help a FI car but if I were still NA Id be all over that

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Jordo! · 10-03-2014, 01:52 PM

They should also duct cooler air to the OEM boxes too -- the OEM boxes pull air from ductwork that leads into the bumper, it's NOT open to the underhood heat.

Buuuutttt.... I'm not sure I'd want to drive through a heavy rainstorm or go through a carwash with those...

What would be nice is if they came with little airtight covers so you could have them open on nice days and seal them up when it rains. Don't think there's anything like that, tho'.

OP, unless you are Russia, I'm guessing FL. Imagine a wall of rain (the whole week, the Tampa area has had nonstop torrential rain...) and you have two openings to your intakes... that could be a bad day if it draws in water.

dmhenderson · 10-03-2014, 02:05 PM

Would these be of any benefit to a FI car? They look slick but if they're not functional, I don't think I'd be interested in carving my bumper up any further

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Jordo! · 10-03-2014, 02:13 PM

Quote:

Originally Posted by dmhenderson

Would these be of any benefit to a FI car? They look slick but if they're not functional, I don't think I'd be interested in carving my bumper up any further

Sent from my iPhone using Tapatalk

Sure -- so long as the duct leads to the intake, so it depends where the intakes are routed (and whether or not you actually pull in cooler air).

Cooler air going in means less heat for the IC to remove.

dmhenderson · 10-03-2014, 02:17 PM

So hypothetically speaking (of course), where could I get these ducts and what would I need hardware-wise to make them functional?

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rAiN · 10-03-2014, 02:53 PM

been running this varis duct for 6 months, went through some heavy summer rain storm and still holding up fine without any problems. oh but bad thing is that your engine bay gets DIRTY like a whore in 14th street under the bridge.

lj909 · 10-03-2014, 03:04 PM

^--Ha ha. Here in Riverside the whores line up on 14th St as well

Jordo! · 10-03-2014, 03:10 PM

Quote:

Originally Posted by rAiN

been running this varis duct for 6 months, went through some heavy summer rain storm and still holding up fine without any problems. oh but bad thing is that your engine bay gets DIRTY like a whore in 14th street under the bridge.

Hey man, if possible, would you mind taking a pic that shows where the air is actually ducted to?

This may require an "in the duct" shot rather than "under the hood", but if you can get a reasonably clear picture that would be much appreciated

dmhenderson · 10-03-2014, 03:52 PM

Quote:

Originally Posted by lj909

^--Ha ha. Here in Riverside the whores line up on 14th St as well

Also in DC. 14th and K.

dmhenderson · 10-03-2014, 03:54 PM

Y'know now that I look at the first picture closer, it looks an awful lot like someone took my RC ducts and slapped them onto the top of the bumper instead of connecting them to the rotors.

Thinking those Varis ducts may be the way to go. Just wish they were a little more cosmetic.

Edit: Also echoing what someone said earlier, I'd love to see the hardware behind the ducts. If they are just bumper holes I'm not going to be super stoked.

For reference, here's what they are supposed to look like:

10-02-2014, 08:21 AM	#1 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,707 Drives: 09 nissan 370z Sp M6 Rep Power: 295377	Twin air ducts Just have a basic question about twin air ducts. Do they really help increase hp? I have stillen gen 3 intakes installed.

10-02-2014, 08:46 AM	#2 (permalink)
synolimit A True Z Fanatic Join Date: May 2013 Location: Columbus, OH Posts: 5,051 Drives: 2013 Silver 370z Rep Power: 3388	The bumper vents? __________________ 13 370z-

10-02-2014, 11:28 AM	#4 (permalink)
Akurei Enthusiast Member Join Date: Feb 2014 Location: California Posts: 319 Drives: 14 370z Rep Power: 11	As far as I'm aware, if the cut outs are at the bottom corners of the bumper, they are brake ducts. If it is the cut outs above where the license plate should be, it will give more airflow and cooler air into your CAI. Not sure if it does anything noticeably dramatic. But you will indeed have cool air come in and possibly cool your engine a little more since you have to cut the styrophone. Probably have a good gap in there carlitos_370z likes this.

10-02-2014, 02:43 PM	#5 (permalink)
DR_ Track Member Join Date: Jul 2009 Location: Dallas Posts: 981 Drives: Touring/Sport M6 PG Rep Power: 16	I think he means these. They should help. Elmo370z likes this.

10-03-2014, 01:38 PM	#6 (permalink)
dmhenderson A True Z Fanatic Join Date: Feb 2011 Location: Maryland Posts: 5,930 Drives: AWD TT 370z Rep Power: 26	Oh hey, those are actually pretty neat. Dunno how much it would help a FI car but if I were still NA Id be all over that Sent from my iPhone using Tapatalk __________________

10-02-2014, 10:35 AM	#3 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,707 Drives: 09 nissan 370z Sp M6 Rep Power: 295377	They are two carbon fiber cut outs they go in the bumper

10-03-2014, 01:52 PM	#7 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 417	They should also duct cooler air to the OEM boxes too -- the OEM boxes pull air from ductwork that leads into the bumper, it's NOT open to the underhood heat. Buuuutttt.... I'm not sure I'd want to drive through a heavy rainstorm or go through a carwash with those... What would be nice is if they came with little airtight covers so you could have them open on nice days and seal them up when it rains. Don't think there's anything like that, tho'. OP, unless you are Russia, I'm guessing FL. Imagine a wall of rain (the whole week, the Tampa area has had nonstop torrential rain...) and you have two openings to your intakes... that could be a bad day if it draws in water. Smashley likes this. __________________ Enjoy it. Destroy it. Last edited by Jordo!; 10-03-2014 at 01:55 PM.

10-03-2014, 02:05 PM	#8 (permalink)
dmhenderson A True Z Fanatic Join Date: Feb 2011 Location: Maryland Posts: 5,930 Drives: AWD TT 370z Rep Power: 26	Would these be of any benefit to a FI car? They look slick but if they're not functional, I don't think I'd be interested in carving my bumper up any further Sent from my iPhone using Tapatalk __________________

10-03-2014, 02:17 PM	#10 (permalink)
dmhenderson A True Z Fanatic Join Date: Feb 2011 Location: Maryland Posts: 5,930 Drives: AWD TT 370z Rep Power: 26	Twin air ducts So hypothetically speaking (of course), where could I get these ducts and what would I need hardware-wise to make them functional? Sent from my iPhone using Tapatalk __________________

10-03-2014, 02:53 PM	#11 (permalink)
rAiN Track Member Join Date: Jan 2009 Location: va Posts: 721 Drives: 2012 370z mt Rep Power: 17	been running this varis duct for 6 months, went through some heavy summer rain storm and still holding up fine without any problems. oh but bad thing is that your engine bay gets DIRTY like a whore in 14th street under the bridge. beauz likes this.

10-03-2014, 03:04 PM	#12 (permalink)
lj909 Track Member Join Date: May 2014 Location: Riverside Posts: 584 Drives: 40th 370Z Rep Power: 11	^--Ha ha. Here in Riverside the whores line up on 14th St as well __________________ PW 07 HR350Z R.I.P. Totaled by 82yr old woman 2010 40th Anniversary 370Z

10-03-2014, 03:54 PM	#15 (permalink)
dmhenderson A True Z Fanatic Join Date: Feb 2011 Location: Maryland Posts: 5,930 Drives: AWD TT 370z Rep Power: 26	Y'know now that I look at the first picture closer, it looks an awful lot like someone took my RC ducts and slapped them onto the top of the bumper instead of connecting them to the rotors. Thinking those Varis ducts may be the way to go. Just wish they were a little more cosmetic. Edit: Also echoing what someone said earlier, I'd love to see the hardware behind the ducts. If they are just bumper holes I'm not going to be super stoked. For reference, here's what they are supposed to look like: __________________ Last edited by dmhenderson; 10-03-2014 at 03:58 PM.

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