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Joined: Apr 2005
Posts: 124
Member
2005 Toyota Celica SX
Member
2005 Toyota Celica SX
Joined: Apr 2005
Posts: 124
hey all i have heard that removing the intake butterfly improves sound and performance any help??? and downsides to it? and could someone tell me how to do it as well??? thx all


"girls like it when you have a six pack but not after you have finished one"

Joined: Apr 2005
Posts: 78
Member
2005 Toyota Tacoma XRunner
Member
2005 Toyota Tacoma XRunner
Joined: Apr 2005
Posts: 78
Do you mean the butterfly plate in the throttle body...HAHAHAHAHAHA
if you did that your car would be at WOT at all times and would not run...i dont own a celica so I dont know if there is anything else that is referred to as a butterfly in airbox

Joined: Jun 2004
Posts: 3,744
CF Connoisseur
2004 Toyota Celica
CF Connoisseur
2004 Toyota Celica
Joined: Jun 2004
Posts: 3,744
here is the uninstall:
https://celicahobby.com/ubbthreads/thread.f_57307_0_collapsed_2__1.html

I did it before my intake. It was a tad louder. Power i didnt feel any. Now there is a dyno on the other site showing a .2 hp increase i bleive rofl

But if your not getitng an intake any time soon i woudl do it jsut for the bit of better sound smile

Here is the dyno:
1953555700-dyon.JPG

Joined: Jun 2004
Posts: 1,694
Metal Storm 2040
2000 Toyota Celica
Metal Storm 2040
2000 Toyota Celica
Joined: Jun 2004
Posts: 1,694
yeah you get like 1 torque, thats it.

Joined: Jun 2004
Posts: 3,744
CF Connoisseur
2004 Toyota Celica
CF Connoisseur
2004 Toyota Celica
Joined: Jun 2004
Posts: 3,744
hey .2 hp is more then enough rofl

Joined: Oct 2004
Posts: 211
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2001 Toyota Celica GT
Member
2001 Toyota Celica GT
Joined: Oct 2004
Posts: 211
.2 rofl thats great, i gotta do this to my intake right now!!( sarcasim)

Joined: Aug 2002
Posts: 1,093
Black Sheep
2000 Toyota Celica GT
Black Sheep
2000 Toyota Celica GT
Joined: Aug 2002
Posts: 1,093
potato in the exhaust, alota back presssure = more hp thumbsup grin

Joined: Dec 2003
Posts: 487
Senior Member
2003 Toyota Celica
Senior Member
2003 Toyota Celica
Joined: Dec 2003
Posts: 487
Project Celica: Part 2
The Dawn of Celica Tuning

http://www.sportcompactcarweb.com/projectcars/0010scc_projcelica/

"Last month we tried removing the flap door assembly and thought we felt a significant improvement in both power and drivability, but subsequently found no power on the dyno. We then tried swapping the flap door in and out without telling the driver and found that nobody could really tell the difference. Our conclusion? Taking out the flap door doesn't hurt, and may or may not improve drivability."

Here are parts 1 and 3 of the article series:

http://www.sportcompactcarweb.com/projectcars/0009scc_projcelica/

http://www.sportcompactcarweb.com/projectcars/0106scc_projcelica/

Several people on this site have reported problems with stalling after sudden stops as a result of removing the butterfly valve assembly.

It's purpose is to act as a kind of choke to help the engine idle better when starting, particularly when it is cold outside.

A small controlled amount of air constriction at low RPMs is actually better for low end torque.

It's one of those mods that dose very little if anything for performance and actually has the potential to compromise over all reliability of the car. Really not worth it in my opinion.

Joined: Jun 2004
Posts: 3,744
CF Connoisseur
2004 Toyota Celica
CF Connoisseur
2004 Toyota Celica
Joined: Jun 2004
Posts: 3,744
yea it is essentiually a choke for when its cold. but here in florida its never cold wink its a good little steppingstone mod between stock and cai wink Pair this with a K&N filter you may boost that up to a .3 difference+ filter smile

Joined: Apr 2005
Posts: 124
Member
2005 Toyota Celica SX
Member
2005 Toyota Celica SX
Joined: Apr 2005
Posts: 124
.3!!!!! wow i can now do a 7 sec 1/4 mile!!! (safcasim) lol rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl rofl rofl:rotf: rofl rofl


"girls like it when you have a six pack but not after you have finished one"

Joined: Apr 2005
Posts: 124
Member
2005 Toyota Celica SX
Member
2005 Toyota Celica SX
Joined: Apr 2005
Posts: 124
looks gay lol rofl


"girls like it when you have a six pack but not after you have finished one"

Joined: Jun 2004
Posts: 3,744
CF Connoisseur
2004 Toyota Celica
CF Connoisseur
2004 Toyota Celica
Joined: Jun 2004
Posts: 3,744
lol

Joined: Jul 2004
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Likes: 1
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Specialist
Joined: Jul 2004
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It doesn't add anything, but it sure sounds cool. I posted a vid of the butterfly mod, but I haven't got time to search for it.

Joined: Apr 2005
Posts: 124
Member
2005 Toyota Celica SX
Member
2005 Toyota Celica SX
Joined: Apr 2005
Posts: 124
WELL GREAT HELP!!! LOL rofl


"girls like it when you have a six pack but not after you have finished one"

Joined: Jan 2005
Posts: 51
Member
2005 Toyota Celica GT
Member
2005 Toyota Celica GT
Joined: Jan 2005
Posts: 51
I removed the butterfly valve for some time, but put it back again as I did not like the cars behavior (I want power at lower RPM). My experience on a 2005 GT is as follows:

1) Removing the valve will cause a deeper sound
2) It will possibly cause loss of power at lower RPM (that is what I noticed)
3) but will possibly give a slight gain at higher RPM
4) Car got a little harder to start.

Basically, the butterfly valve works as a tuned intake runner - see
http://auto.howstuffworks.com/question517.htm
for more information.


*** Wars cannot be won, only survived ***

Joined: Apr 2005
Posts: 124
Member
2005 Toyota Celica SX
Member
2005 Toyota Celica SX
Joined: Apr 2005
Posts: 124
well fuck i have auto so low rpm is needed ohh well ile just wait till i get a CAI or SRI


"girls like it when you have a six pack but not after you have finished one"

Joined: Jun 2004
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Specialist
2000 Toyota Celica
Specialist
2000 Toyota Celica
Joined: Jun 2004
Posts: 1,869
Likes: 1
I removed mine and I am not getting loss of power at lower rpm. Maybe it is because my low RPM sucks to begin with since I do have a GTS. But the sound is there and lift kicks a bit harder (might be my imagination).

I suggest that you try it out for 1 day or 2 and see if you like it. If you have problems, then put it back on. It is not like you are chopping off tubes and relocating anything. The removal is very easy, just make sure you use a fat enough screw to plug up the hose.

You can do this for a time being until you await for your intake. You gotta do a bit more work installing a CAI or a SRI anyways so take this as a practice run on messing around with that part of the engine bay.


Aggressively Driven
2000 Celica GT-S 6 Speed

Joined: Jan 2005
Posts: 51
Member
2005 Toyota Celica GT
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2005 Toyota Celica GT
Joined: Jan 2005
Posts: 51
I agree, give it a try, it is an easy mod. I had my valve off for several weeks, then reinstalled it. And I notice that my car gained a tiny bit in the lower RPM. But this was using the butt dyno.

No change in gas mileage, both gave med around 36-38 mpg on highway on my auto.

For me, I will get an AEM CAI later on. Just need to save up some money first... (just bought sway bars...)


*** Wars cannot be won, only survived ***
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