Dual intake cones? Just an idea. - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Trashed675 · 01-23-2013, 10:33 PM

I've been playing with the idea of doing some kind of DIY intake system and thought i'd bounce my latest idea off the general public. Here is a list of parts that i've found in order coming off the throttle body.

For the vacuum line:
http://www.jegs.com/i/Spectre/865/8707/10002/-1
MAF sensor:
http://www.jegs.com/i/Spectre/865/94...-1#accessories
"Y" pipe:
http://www.jegs.com/i/Spectre/865/94...oductId=769283
45's:
http://www.spectreperformance.com/in...-polished.html
And a couple of K&N cones:
http://www.knfilters.com/search/prod...x?Prod=RR-3003

obviously i'll have to make my own brackets, but that shouldn't be too difficult. I know i know, the performance gains will be minimal at best, but i've always like the look of this type of setup.

Can anybody see any totally obvious "cons" that i'm overlooking?
What do you all think of the idea?

dorifuto · 01-23-2013, 10:51 PM

Maf placement is critical. It takes Alot of r&d to make a functional intake that actually makes power. I you have access to a dyno or software that can show if you are leaning out then go for it.

Visconti · 01-23-2013, 10:53 PM

Looks cool

GTB/ZR-1 · 01-23-2013, 10:54 PM

These were common in the Vette world. They really didn't offer any additional gains over single-cone systems. My .02 & YMMV...

They do look neat, though!

Trashed675 · 01-23-2013, 11:06 PM

Quote:

Originally Posted by dorifuto

Maf placement is critical. It takes Alot of r&d to make a functional intake that actually makes power. I you have access to a dyno or software that can show if you are leaning out then go for it.

I've got the torque app and a bluetooth ODB2 adapter so i'll be sure to check the AF ratio's before and after. Sadly, no dyno anywhere nearby.

Flat Black VW · 01-23-2013, 11:23 PM

I dont know much about how it would work or how to tune it properly but I say go for it, would be interesting and its always good to see more people trying new things

Trashed675 · 01-24-2013, 12:38 AM

Quote:

Originally Posted by Flat Black VW

I dont know much about how it would work or how to tune it properly but I say go for it, would be interesting and its always good to see more people trying new things

Thats kind of been my only reservation, the closest place to get anything tuned is from Perrin about 4 hours north of me. Not exactly convenient.

wWaldo · 01-25-2013, 03:52 AM

common on BMW 335s ...

Ravenlokk · 01-25-2013, 04:21 AM

Seems like heat could be an issue or do you have plans for heat shielding and/or venting ?

Trashed675 · 01-25-2013, 07:13 PM

Quote:

Originally Posted by Ravenlokk

Seems like heat could be an issue or do you have plans for heat shielding and/or venting ?

I wouldn't think it would be any more of an issue then any other CAI/short ram. But a heat shield wouldn't be a difficult addition.

JDMenrique · 01-25-2013, 07:23 PM

What did you attach? I can't see it

Trashed675 · 01-25-2013, 08:20 PM

Something along these lines:
http://i151.photobucket.com/albums/s...Buick074-1.jpg

Basti · 01-27-2013, 12:51 PM

I'd thought about something similar already, too.
However, for the left side, I'd prefer a mirrored OEM airbox as an addition.
The space behind the bumper seems to be laid out exactly like the one on the right (where the airbox originally sits), so that should be practical.
However, there's the issue of a mirrored airbox not actually being available...

Alternatively, one may stick to the Y-design for the intake but move the filter to the center joint and have the left and right ducts act as intake pipes only...

xcelir8brz · 01-27-2013, 05:18 PM

Tried it this summer already. The car bogged (i.e. too much air flow). This was part of my R&D intake venture.

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01-23-2013, 10:51 PM	#2
dorifuto If in doubt,flat out Join Date: Oct 2012 Drives: 2013 brz Location: colorado Posts: 260 Thanks: 56 Thanked 211 Times in 75 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Maf placement is critical. It takes Alot of r&d to make a functional intake that actually makes power. I you have access to a dyno or software that can show if you are leaning out then go for it.

01-23-2013, 10:53 PM	#3
Visconti Banned Join Date: Apr 2012 Drives: 05 STi Location: Norwalk, CT Posts: 2,843 Thanks: 196 Thanked 3,188 Times in 1,197 Posts Mentioned: 375 Post(s) Tagged: 2 Thread(s)	Looks cool

01-23-2013, 10:54 PM	#4
GTB/ZR-1 Senior Member Join Date: Oct 2012 Drives: '13 BRZ in WRB--let's mod!!! Location: Central, FL Posts: 1,224 Thanks: 317 Thanked 449 Times in 262 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	These were common in the Vette world. They really didn't offer any additional gains over single-cone systems. My .02 & YMMV... They do look neat, though!

01-23-2013, 11:23 PM	#6
Flat Black VW Senior Member Join Date: Jun 2012 Drives: 2013 Subaru BRZ Location: NOVA Posts: 894 Thanks: 227 Thanked 343 Times in 202 Posts Mentioned: 8 Post(s) Tagged: 1 Thread(s)	I dont know much about how it would work or how to tune it properly but I say go for it, would be interesting and its always good to see more people trying new things

01-25-2013, 03:52 AM	#8
wWaldo Banned Join Date: Oct 2012 Drives: Asphalt Frs Location: Montreal Posts: 134 Thanks: 4 Thanked 8 Times in 7 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	common on BMW 335s ...

01-25-2013, 04:21 AM	#9
Ravenlokk Senior Member Join Date: Aug 2012 Drives: 2013 Raven FR-S Location: Vancouver, Canada Posts: 265 Thanks: 34 Thanked 68 Times in 47 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Seems like heat could be an issue or do you have plans for heat shielding and/or venting ?

01-27-2013, 12:51 PM	#13
Basti Senior Member Join Date: Jan 2013 Drives: BRZ Location: Germany Posts: 120 Thanks: 9 Thanked 13 Times in 12 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I'd thought about something similar already, too. However, for the left side, I'd prefer a mirrored OEM airbox as an addition. The space behind the bumper seems to be laid out exactly like the one on the right (where the airbox originally sits), so that should be practical. However, there's the issue of a mirrored airbox not actually being available... Alternatively, one may stick to the Y-design for the intake but move the filter to the center joint and have the left and right ducts act as intake pipes only...

01-27-2013, 05:18 PM	#14
xcelir8brz Senior Member Join Date: Jun 2012 Drives: 2013 BRZ Limited Location: Earth Posts: 1,029 Thanks: 45 Thanked 235 Times in 157 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Tried it this summer already. The car bogged (i.e. too much air flow). This was part of my R&D intake venture.

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