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Joined: Jul 2004
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Haulin_A_Doo
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Haulin_A_Doo Aug 22, 11:40am - #256066 
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Ontario
Butterfly Mod

Just for a lark, I did the butterfly mod & threw in my old K&N Air Filter. I was suprised how loud it got. On the highway in some cases its loud constantly & becomes annoying. Otherwise it sounds pretty cool. thumbsup

GT automatic, stock exhaust, butterfly valve removed & K&N:
https://www.celicahobby.com/ubbthreads/attach/1870176269-Haulin_A_Doo-Vid02.mpg
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Virgilson
TheFilipinoCrew
Virgilson Aug 22, 4:58pm - #256067 

TheFilipinoCrew
2000 Toyota Celica GT

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Pomona, CA
dude thats a big difference in sound.
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Sancho
SD Syndicate
Sancho Aug 22, 6:54pm - #256068 

SD Syndicate
2004 Toyota Celica GT

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Posts: 1,003
San Diego, CA
It really is!!! thumbsup

I felt a little sum sum extra in accel too when I step on the gas. Maybe 1 hp, but its something. I'm looking to get a K&N filter, but Pep Boys and Autozone don't have the serial # i'm looking for. 33-2041-1. I had to order it and i'm waiting. frown

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2004 Toyota Celica GT
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Haulin_A_Doo
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Haulin_A_Doo Aug 22, 8:32pm - #256069 
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Ontario
This no hp gains though, in fact it might have caused a minor amount of bogging at lower rpms. Its a sound only mod.

The K&N is not worth the money. I got mine for free and hours after I installed it, the AIC went. Its a $600 repair to replace it. I never did have it repaired.
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oas
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oas Aug 22, 9:51pm - #256070 
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wath is AIC?
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Haulin_A_Doo
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Haulin_A_Doo Aug 22, 11:59pm - #256071 
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Ontario
I donno, I have never seen it. Its an Air Intake Control valve/sensor doohicky. Its somewhere around the throttle body.
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2003cbgts
Specialist
2003cbgts Aug 23, 12:52am - #256072 

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2003 Toyota Celica

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South Carolina
i did the flutterby mod yesterday on my gts. sounded pretty good, but im a worry freak so i put it back in. the whole screw in the vacume tube is whats sketches me out. dont want to suck it in the engine or anything.
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Haulin_A_Doo
Specialist
Haulin_A_Doo Aug 23, 12:55am - #256073 
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Ontario
Originally Posted by 2003cbgts
i did the flutterby mod yesterday on my gts. sounded pretty good, but im a worry freak so i put it back in. the whole screw in the vacume tube is whats sketches me out. dont want to suck it in the engine or anything.


The head on the screw should be too big to be sucked in. I don't get it? Just tape the plugged vaccum line outside of the airbox.
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hephaestus
Specialist
hephaestus Aug 23, 3:00am - #256074 
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New Jersey
The sound of our engines (2ZZ) unbaffled sounds amazing at least to me. Check the install section to see were the AIC valve is. It's a slit at the bottom of the inside of the throttle body and looks like a screw from the bottom outside on the throttle body. I just recently blasted that son of a goat again, just for my own boredom and pleasure.
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celicagirlie
Member
celicagirlie Aug 23, 3:47am - #256075 

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2000 Toyota Celica GT

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Seattle,Wa
doo? why do you only take pics of your car at night? LOL confused grin
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hephaestus
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hephaestus Aug 23, 4:00am - #256076 
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New Jersey
It gives that extra mystique. A question of knowing of what is, what will be, or what is realy true. Hell, a Celica's headlights are sexy at night. Who can deny that. That reminds me. I need to check on my own status.
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Haulin_A_Doo
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Haulin_A_Doo Aug 23, 6:44am - #256077 
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Ontario
Originally Posted by hephaestus
The sound of our engines (2ZZ) unbaffled sounds amazing at least to me. Check the install section to see were the AIC valve is. It's a slit at the bottom of the inside of the throttle body and looks like a screw from the bottom outside on the throttle body. I just recently blasted that son of a goat again, just for my own boredom and pleasure.


Actually mine's a 1ZZ automatic.

Originally Posted by celicagirlie
doo? why do you only take pics of your car at night? LOL confused grin


Cause I don't wash it. laughsilly
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2003cbgts
Specialist
2003cbgts Aug 23, 7:23am - #256078 

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2003 Toyota Celica

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South Carolina
people can talk shit all they want, that sounds like one mean ass auto gt you got there doo!!
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Haulin_A_Doo
Specialist
Haulin_A_Doo Aug 23, 9:25am - #256079 
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Ontario
Originally Posted by 2003cbgts
people can talk shit all they want, that sounds like one mean ass auto gt you got there doo!!


Thank you, I like it. smile

I think the GT auto gets a bum rap over all. The auto is slow from a dead stop, but once your moving it holds its own just fine. The torque rating is good. The passing times are respectable & it gets great gas mileage. The automatic always shifts 600 early so you save the motor a bit. Automatic is smooth, no lurching back and forth like in a standard. The thick tires on a GT give a nice smooth comfortable ride, you don't feel every crack in the road like with low profiles. The GT looks awesome and its cheap! I didn't buy mine to race, I bought mine for transportation. Overall its a cool car for the money. thumbsup
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Haulin_A_Doo
Specialist
Haulin_A_Doo Aug 24, 1:58am - #256080 
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Ontario
Originally Posted by hephaestus
Check the install section to see were the AIC valve is. It's a slit at the bottom of the inside of the throttle body and looks like a screw from the bottom outside on the throttle body. I just recently blasted that son of a goat again, just for my own boredom and pleasure.


I'll have to check that out. I'd like to see how it works & stuff. Thanks. thumbsup
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slidr
Specialist
slidr Aug 24, 2:07am - #256081 

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2000 Toyota Celica

Joined: Sep 2003
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Saint Louis, MO
Originally Posted by 2003cbgts
people can talk shit all they want, that sounds like one mean ass auto gt you got there doo!!
I agree. I'd never thought I would have sounded like that.

Aqua Teen Hunger Force...number one in the hood, G
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Designer_GTS
Member
Designer_GTS Aug 24, 8:42am - #256082 
2000 Carbon Blue Toyota Celica
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2000 Toyota Celica

Joined: Mar 2004
Posts: 242
St. Louis
I just did this tonight. Super easy. I like how it is louder just when I above 3500 rpms so it doesn't get annoying when i'm just driving around town. I don't know if this was just my imagination, but I thought the car drove more smoothly.
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Haulin_A_Doo
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Haulin_A_Doo Aug 24, 2:31pm - #256083 
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Ontario
Originally Posted by Designer_GTS
I just did this tonight. Super easy. I like how it is louder just when I above 3500 rpms so it doesn't get annoying when i'm just driving around town. I don't know if this was just my imagination, but I thought the car drove more smoothly.


Yah, its your imagination. thumbsup But none the less, its good clean fun. grin
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simonw
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simonw Oct 1, 2:48am - #256084 
2001 White Toyota Celica ZR
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2001 Toyota Celica ZR

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I've heard removal of butterfly valve can stall the engine. Maybe is not worth for 1hp gains.
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Duy
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Duy Oct 1, 7:06am - #256085 
2000 Carbon Blue Toyota Celica
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2000 Toyota Celica

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Posts: 207
San Diego
u should hear the butterfly off in lift =]

Celicas are sexy. Me in a Celica is DAMN sexy.
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AzNRaCeR
Senior Member
AzNRaCeR Oct 1, 1:30pm - #256086 
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2000 Toyota Celica GTS

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Posts: 412
Ft. Laud. FL/FSU Tallahassee
if you think that was loud, wait till you get a CAI...it screeeeeeaaaaaams!

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DiabloGTS
Wheezy Joe
DiabloGTS Oct 1, 3:20pm - #256087 

Wheezy Joe
2002 Kawasaki Ninja 250

Joined: Apr 2003
Posts: 2,451
Lafayette, LA
Your AIC is not busted, the magnet that allows it to actuate is stuck from the oil from the K&N filter.

Spray some WD40 into the hole inside the throttle body, and it will loosen it right up (make sure you do this with the engine running, and give it a little gas so it doesn't stall)

To have played and laughed with enthusiasm
and sung with exultation
To know even one life has breathed easier
This is to have succeeded.
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yellowgt
Member
yellowgt Oct 1, 6:52pm - #256088 
2002 Super Yellow Toyota Celica GT
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2002 Toyota Celica GT

Joined: Jul 2004
Posts: 20
Alberta, Canada
I removed the butter assy from my 2002 gt and it is great. I did notice a little difference in responce for the better and it does sound better! There is nothing to worry about. It has been going good for a couple weeks now. I am waiting to see if it hurts the MPG. I get about 650KM on a tank of regular.
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Posts: 528
renfield90
Senior Member
renfield90 Oct 1, 6:55pm - #256089 

Senior Member
2001 Toyota Celica GT

Joined: May 2004
Posts: 528
Tempe, AZ
It won't noticeably affect your gas mileage, unless you constantly floor it to hear the great sound grin I took a trip from here to California and still got over 40 MPG. On normal street conditions I still get about the same.

EDIT: meant to say I get the same on the street after the mod as I did before.
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