Previous Thread
Next Thread
New Reply
Print Thread
Joined: Jun 2004
Posts: 1,003
Sancho
SD Syndicate
Sancho

SD Syndicate
2004 Toyota Celica GT

Joined: Jun 2004
Posts: 1,003
San Diego, CA
Jul 25, 6:05pm - #232153 
Butterfly valve

Just removed the butterfly valve from my air box. I've been procrastinating long enough, so just ripped it out in a couple minutes. Can't notice too much of a difference in sound, but i'll try it again tomorrow. CEL didn't come on, so all is good. My question is, what should I do with this valve? Anybody want it? I could sell it to you for the cost of shipping and handling. rofl thumbsup


[Linked Image]
2004 Toyota Celica GT
***Blue Batmobile sponsored vehicle***

Joined: Jul 2004
Posts: 2,016
Haulin_A_Doo
Specialist
Haulin_A_Doo
Specialist

Joined: Jul 2004
Posts: 2,016
Ontario
Jul 25, 6:35pm - #232154 
Probaby not worth anything because everyone had taken them off their celi's. Toss it in the trunk for the next owner incase they live in Michigan & need it for the cold winters. grin

Joined: Jun 2004
Posts: 1,870
Chelica815
Specialist
Chelica815
2000 Silver Toyota Celica
Specialist
2000 Toyota Celica

Joined: Jun 2004
Posts: 1,870
San Francisco -The Bay
Jul 25, 7:26pm - #232155 
I still have mine installed. Would it void warranty if I was to take it off? What does it do anyways?


Aggressively Driven
2000 Celica GT-S 6 Speed
Joined: Jul 2004
Posts: 2,016
Haulin_A_Doo
Specialist
Haulin_A_Doo
Specialist

Joined: Jul 2004
Posts: 2,016
Ontario
Jul 25, 7:28pm - #232156 
It reduces air flow when its cold. Kinda works like a choak, changing the air fuel mixutre.

I don't think it would void your warrantee if you removed it.

Joined: Jun 2004
Posts: 1,696
Polykarb
Metal Storm 2040
Polykarb

Metal Storm 2040
2000 Toyota Celica

Joined: Jun 2004
Posts: 1,696
Tampa, Florida
Jul 25, 8:23pm - #232157 
nah, that valve has nothing to do with emissions. Will not void warranty


FF TWINCAM BEAUTY: CELICA
Joined: Jun 2004
Posts: 1,003
Sancho
SD Syndicate
Sancho

SD Syndicate
2004 Toyota Celica GT

Joined: Jun 2004
Posts: 1,003
San Diego, CA
Jul 25, 9:43pm - #232158 
Originally Posted by Polykarb
nah, that valve has nothing to do with emissions. Will not void warranty


Originally Posted by isaac
The "butterfly is a plastic part located inside the air box that is recognizable by the small white flap in the middle. This is a very minor modification which has not shown any significant power gains but results in a deeper sound when accelerating it was placed there by Toyota to help MPG by reducing the amount of air that enters the engine & to keep the car a little quieter at RPMs below 3500.


idunno


[Linked Image]
2004 Toyota Celica GT
***Blue Batmobile sponsored vehicle***

Joined: Mar 2004
Posts: 647
hector
Senior Member
hector

Senior Member
2001 Toyota Celica GT

Joined: Mar 2004
Posts: 647
san bernardino, california
Jul 25, 9:47pm - #232159 
whats the butterfly valve...anyone have pics? never heard of this... spineyes

Joined: Apr 2003
Posts: 2,451
DiabloGTS
Wheezy Joe
DiabloGTS

Wheezy Joe
2002 Kawasaki Ninja 250

Joined: Apr 2003
Posts: 2,451
Lafayette, LA
Jul 25, 9:48pm - #232160 
it also steadies the idle on a GTS at low rpm's

If you remove it, you will lose vacuum pressure on the GTS when coming to a stop and the power brakes activate.

It's the reason the cars bog down to 400 RPM


To have played and laughed with enthusiasm
and sung with exultation
To know even one life has breathed easier
This is to have succeeded.
Joined: Jun 2004
Posts: 1,003
Sancho
SD Syndicate
Sancho

SD Syndicate
2004 Toyota Celica GT

Joined: Jun 2004
Posts: 1,003
San Diego, CA
Jul 25, 10:13pm - #232161 
Originally Posted by hector
whats the butterfly valve...anyone have pics? never heard of this... spineyes


Linked Image

The white thing in the air box wave

Heres the uninstall
https://www.celicahobby.com/ubbthreads/thread.f_57307_0_collapsed_2__1.html


[Linked Image]
2004 Toyota Celica GT
***Blue Batmobile sponsored vehicle***

Joined: Jun 2004
Posts: 1,870
Chelica815
Specialist
Chelica815
2000 Silver Toyota Celica
Specialist
2000 Toyota Celica

Joined: Jun 2004
Posts: 1,870
San Francisco -The Bay
Jul 25, 11:33pm - #232162 
So removing it will give me better sound but worst MPG?


Aggressively Driven
2000 Celica GT-S 6 Speed
Joined: May 2004
Posts: 15
jrock
Member
jrock
2004 black Toyota Celica
Member
2004 Toyota Celica

Joined: May 2004
Posts: 15
us
Jul 26, 1:32am - #232163 
hey diablo, could you clarify that for me, cause i have a gts; it bogs it down...me lost now

Joined: Nov 2003
Posts: 35
nyckaminari
Member
nyckaminari
2002 Silver Toyota Celica GT
Member
2002 Toyota Celica GT

Joined: Nov 2003
Posts: 35
NYC
Jul 26, 7:29am - #232164 
The MPG was about the same when I removed mines. It will be slightly louder and adds 1-2 hp, I heard...

Joined: Jun 2004
Posts: 1,003
Sancho
SD Syndicate
Sancho

SD Syndicate
2004 Toyota Celica GT

Joined: Jun 2004
Posts: 1,003
San Diego, CA
Jul 27, 5:44pm - #232165 
Originally Posted by Chelica815
So removing it will give me better sound but worst MPG?


Yep! It was there as a choke to control air flow. Fast cars have bad MPGs, while economy cars are the opposite. Let more air in, you're burning fuel faster (Need oxygen to fuel fire, same with combustion). The sound is similar to a CAI, but not as deep. Better off getting a new Intake and ripping the airbox out for more gains. 1-2 hp gains without the butterfly are bs. It hasn't been dyno'd.


[Linked Image]
2004 Toyota Celica GT
***Blue Batmobile sponsored vehicle***

Joined: Oct 2003
Posts: 1,154
Larry_GTS
Specialist
Larry_GTS
2003 Yellow/Red Toyota Celica
Specialist
2003 Toyota Celica

Joined: Oct 2003
Posts: 1,154
Texas
Jul 27, 5:55pm - #232166 
I did that today to

Joined: Mar 2004
Posts: 84
TheAnswer
Member
TheAnswer

Member
2000 Toyota Celica

Joined: Mar 2004
Posts: 84
Wisconsin
Jul 27, 6:41pm - #232167 
So in general you should leave it on or remove it?

Joined: Jun 2004
Posts: 1,298
sickcelica696
Specialist
sickcelica696
2000 Liquid Silver Toyota Celica
Specialist
2000 Toyota Celica

Joined: Jun 2004
Posts: 1,298
Annapolis, MD
Jul 27, 6:53pm - #232168 
remove it

Join the conversation - Register Now or Log In to add your comment


Moderated by  isaac 

Member Spotlight
Mike00
Mike00
2000 Toyota Celica
Newtown/PA

Posts: 209
Joined: May 2003
Show All Member Profiles 
Shout Box
Recent Topics
E-brake and seized brake caliper
by osirhc17. 04/27/2017 10:27 AM
TradingGTS for GT what should I know.
by GTS25430. 04/24/2017 5:19 PM
Does 01' corolla struts swap in an 01' celica GT?
by Frostysnowman92. 04/24/2017 1:22 PM
WTB: 00-02 amp bypass harness
by MJ00GTS. 04/18/2017 7:36 PM
Does not seem to be much activity for the 5th gens???
by Coop301. 04/18/2017 7:51 AM
Cold wet weather hesitation
by GTS25430. 04/17/2017 6:15 AM
00-02 premium 8spkr 2din gps solutions?
by MJ00GTS. 04/17/2017 2:24 AM
WTB: valve assy, vacuum switch
by hydraea. 04/15/2017 5:32 PM
Customize Your Toyota Celica Privacy Policy · About · Contact
Privacy Policy · About · Contact
CelicaHobby.com is an independent Toyota Celica enthusiast website. CelicaHobby.com is not sponsored by or affiliated with Toyota Motor Sales, USA, Inc. in any way. The Toyota and Celica names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.
© CelicaHobby.com, 2001-2017
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Snapshot build 20170416)