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removing the intake butterfly improves intake sound, performence #434544 Apr 4, 7:12am Apr 4, 7:12am
Joined: Apr 2005
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australia
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2005 Toyota Celica SX
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removing the intake butterfly improves intake sound, performence
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"
Re: removing the intake butterfly improves intake sound, performence [Re: MUNTED] #434545 Apr 4, 7:26am Apr 4, 7:26am
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Posts: 78
Pittsburgh PA
05XRunner
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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

Re: removing the intake butterfly improves intake sound, performence [Re: 05XRunner] #434546 Apr 4, 7:31am Apr 4, 7:31am
Joined: Jun 2004
Posts: 3,748
Gainesville, FL
hombredelassrtas
CF Connoisseur
2004 Toyota Celica
hombredelassrtas
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here is the uninstall:
https://www.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
Re: removing the intake butterfly improves intake sound, performence [Re: hombredelassrtas] #434547 Apr 4, 7:41am Apr 4, 7:41am
Joined: Jun 2004
Posts: 1,696
Tampa, Florida
Polykarb
Metal Storm 2040
2000 Toyota Celica
Polykarb
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yeah you get like 1 torque, thats it.


FF TWINCAM BEAUTY: CELICA
Re: removing the intake butterfly improves intake sound, performence [Re: Polykarb] #434548 Apr 4, 10:24am Apr 4, 10:24am
Joined: Jun 2004
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Gainesville, FL
hombredelassrtas
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hombredelassrtas
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hey .2 hp is more then enough rofl

Re: removing the intake butterfly improves intake sound, performence [Re: hombredelassrtas] #434549 Apr 4, 10:40am Apr 4, 10:40am
Joined: Oct 2004
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Salt Lake City, Utah
sekytwo
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2001 Toyota Celica GT
sekytwo
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.2 rofl thats great, i gotta do this to my Intake right now!!( sarcasim)

Re: removing the intake butterfly improves intake sound, performence [Re: sekytwo] #434550 Apr 4, 10:50am Apr 4, 10:50am
Joined: Aug 2002
Posts: 1,096
818, CA
Eman
Black Sheep
2000 Toyota Celica GT
Eman
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Joined: Aug 2002
Posts: 1,096
818, CA
potato in the exhaust, alota back presssure = more hp thumbsup grin


Ima TuRD fa life
Re: removing the intake butterfly improves intake sound, performence [Re: Eman] #434551 Apr 4, 11:38am Apr 4, 11:38am
Joined: Dec 2003
Posts: 487
Portland, Oregon
GTS2003BLK
Senior Member
2003 Toyota Celica
GTS2003BLK
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Posts: 487
Portland, Oregon
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.

Re: removing the intake butterfly improves intake sound, performence [Re: GTS2003BLK] #434552 Apr 4, 11:57am Apr 4, 11:57am
Joined: Jun 2004
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Gainesville, FL
hombredelassrtas
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2004 Toyota Celica
hombredelassrtas
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Gainesville, FL
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

Re: removing the intake butterfly improves intake sound, performence [Re: hombredelassrtas] #434553 Apr 5, 5:38am Apr 5, 5:38am
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australia
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.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"
Re: removing the intake butterfly improves intake sound, performence [Re: MUNTED] #434554 Apr 5, 5:40am Apr 5, 5:40am
Joined: Apr 2005
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australia
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looks gay lol rofl


"girls like it when you have a six pack but not after you have finished one"
Re: removing the intake butterfly improves intake sound, performence [Re: MUNTED] #434555 Apr 5, 6:28am Apr 5, 6:28am
Joined: Jun 2004
Posts: 3,748
Gainesville, FL
hombredelassrtas
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Posts: 3,748
Gainesville, FL
lol

Re: removing the intake butterfly improves intake sound, performence [Re: hombredelassrtas] #434556 Apr 6, 3:58am Apr 6, 3:58am
Joined: Jul 2004
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Ontario
H
Haulin_A_Doo
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Haulin_A_Doo
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Ontario
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.

Re: removing the intake butterfly improves intake sound, performence [Re: Haulin_A_Doo] #434557 Apr 6, 8:35am Apr 6, 8:35am
Joined: Apr 2005
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australia
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WELL GREAT HELP!!! LOL rofl


"girls like it when you have a six pack but not after you have finished one"
Re: removing the intake butterfly improves intake sound, perform [Re: MUNTED] #434558 Apr 6, 10:21pm Apr 6, 10:21pm
Joined: Jan 2005
Posts: 51
Walnut Creek, CA
Carbonblue2005GT
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2005 Toyota Celica GT
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Walnut Creek, CA
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 ***
Re: removing the intake butterfly improves intake sound, perform [Re: Carbonblue2005GT] #434559 Apr 7, 6:56am Apr 7, 6:56am
Joined: Apr 2005
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australia
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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"
Re: removing the intake butterfly improves intake sound, perform [Re: MUNTED] #434560 Apr 7, 9:38am Apr 7, 9:38am
Joined: Jun 2004
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San Francisco -The Bay
2000 Silver Toyota Celica
Chelica815
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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
Re: removing the intake butterfly improves intake sound, perform [Re: Chelica815] #434561 Apr 7, 12:01pm Apr 7, 12:01pm
Joined: Jan 2005
Posts: 51
Walnut Creek, CA
Carbonblue2005GT
Member
2005 Toyota Celica GT
Carbonblue2005GT
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Joined: Jan 2005
Posts: 51
Walnut Creek, CA
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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