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Joined: Jul 2004
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2002 ToYoTa Celica
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2002 ToYoTa Celica
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yea i just removed my butterfly i'm at work so i just took 10 min off and did it engine sounds a lot deeper now and a lil faster it's the best free mod ever YEA!

RECOMMENeD EVERY1 TO DO IT

just go to the intalls page and the directions are easy as hell took me 10 min to do

and yes i am a n00b at this shit so i'm glad :smile:

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that's rite~! thumbsup that's ur first step thumbsup

there's still a lota things awaiting you! grin grin Intake next!

now a Intake and butterfly is a day and night difference


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Wheezy Joe
2002 Kawasaki Ninja 250
Wheezy Joe
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Be careful when doing this, because you lose vacuum pressure at idle, and if you have ABS, when you brake in a panic situation, it will cause your car to stall out because it won't be able to maintain idle speed and power assist the ABS with the lessened vacuum pressure


To have played and laughed with enthusiasm
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To know even one life has breathed easier
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Masta OC
2003 Toyota Celica
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^^^ meh. if you worry about that sort of trivial thing, next you'll be wearing a seatbelt too.


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Wheezy Joe
2002 Kawasaki Ninja 250
Wheezy Joe
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I worry about it, because having your car stall out during a panic stop means you lose steering AND braking.

Doesn't sound like the kinda thing I'd want to have happen to me in the snow, or in the rain when I need to control the car in a skid spineyes


To have played and laughed with enthusiasm
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To know even one life has breathed easier
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Masta OC
2003 Toyota Celica
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I remember that you yanked your butterfly a while back. Did you put it back in?


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Wheezy Joe
2002 Kawasaki Ninja 250
Wheezy Joe
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yep, the second I stalled the car out from doing a really hard stop from 90 into a 15 mph blind curve.

Almost crashed the car, put the butterfly back in once I got home.


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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2002 ToYoTa Celica
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2002 ToYoTa Celica
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i have a auto will i still stall ??

damn you guys got me scared now

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ct
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2000 Toyota Celica GTS
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2000 Toyota Celica GTS
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this mod is dum thumbsdown...get an Intake. rofl

al kidding aside i have dynos that show the gains as minimal...we're talkin like .4-.7whp...at lift. i doubt a gt gets any at all. that butterfly is there for a reason.

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Masta OC
2003 Toyota Celica
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eek ack.

note to self: be careful with DIY mods


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Wheezy Joe
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it's only a big deal when you brake hard, and put the clutch in to change gears. the car drops to idle speed, and since the butterfly valve would then engage, and create more vacuum pressure, it can't maintain that level of idle, and it stalls

if you have an auto, don't worry about it because you are never going to change gears with a clutch spineyes


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Furi Kuri
2002 Toyota Celica GT
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haha, so its a better DIY for auto...in terms of stalling out. wave


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well...dont you step on clutch when you at a panic stop?

if that so, how can ur car be stalling? or is it possible to stall with the clutch in at taht situation also?


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any Performance gain???

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ct
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2000 Toyota Celica GTS
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2000 Toyota Celica GTS
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Originally Posted by ragingpaseo
any Performance gain???

here...6-sp gts. you can bet a GT 5sp or gts auto will not get the same gains.
1870157357-butterflymod.jpg

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ECelica Staff
2000 Toyota Celica GT
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Originally Posted by DiabloGTS
Be careful when doing this, because you lose vacuum pressure at idle, and if you have ABS, when you brake in a panic situation, it will cause your car to stall out because it won't be able to maintain idle speed and power assist the ABS with the lessened vacuum pressure

Did You plug the vacuum line with a shunt? That would have eliminated the vacuum leak.


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ThE iRoN mAiDeN
2003 Toyota Celica GT
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2003 Toyota Celica GT
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This mod is masturbation, leave it at a drop in filter (K&N or TRD) or get a aftermarket Intake. Not worth killing yourself just to say you have a mod. thumbsdown

Last edited by Gen7fan; Aug 6, 2004 3:57pm.

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Originally Posted by ct
Originally Posted by ragingpaseo
any Performance gain???

here...6-sp gts. you can bet a GT 5sp or gts auto will not get the same gains.

The GTS Auto & the GTS 6-sp would have EXACTLY the same gain because they are the same engine. Gearing does not determine horsepower, the motor does. You are measuring a dyno in a single gear, not the quarter mile.

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SD Syndicate
2004 Toyota Celica GT
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Its a great n00b mod, for those really getting into car modifications. I don't feel like buying a Performance filter because i'll probably be getting a CAI next. For those who don't have exhuast, Intake, or headers and want a more deeper sound than stock, this is still the ticket. thumbsup


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Masta OC
2003 Toyota Celica
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Quote
The GTS Auto & the GTS 6-sp would have EXACTLY the same gain because they are the same engine. Gearing does not determine horsepower, the motor does. You are measuring a dyno in a single gear, not the quarter mile.

ACTUALLY... grin

The drivetrain loss is different. People have posted auto GTS dyno's before, and they are substantially less than 6-speeds. (my celi is auto, btw).


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2001 Toyota Celica GT
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^^ how do you dyno an auto?

anyway, I agree with Sancho. I pulled mine out for the sound, and if you've never done mods on a car before but want to start, it's a good way to get your feet wet.

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Masta OC
2003 Toyota Celica
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Originally Posted by renfield90
^^ how do you dyno an auto?

anyway, I agree with Sancho. I pulled mine out for the sound, and if you've never done mods on a car before but want to start, it's a good way to get your feet wet.

Same way they dyno the 900 HP auto Supras grin


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Quote
The GTS Auto & the GTS 6-sp would have EXACTLY the same gain because they are the same engine. Gearing does not determine horsepower, the motor does. You are measuring a dyno in a single gear, not the quarter mile.

ACTUALLY... grin

The drivetrain loss is different. People have posted auto GTS dyno's before, and they are substantially less than 6-speeds. (my celi is auto, btw). [/quote]

Ya, but the drivetrain loss is a constant. The gain would not change.

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Masta OC
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...but isn't drivetrain loss expressed as a percentage of total HP, not a constant number?

Sorry, could be wrong on this one...


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Originally Posted by RevMonster
...but isn't drivetrain loss expressed as a percentage of total HP, not a constant number? Sorry, could be wrong on this one...

I don't know. Okay 180HP flywheel less 20HP = 160HP ground
Is it: 1) Turbo to 240HP flywheel less 30HP = 210HP ground
Or: 2) Turbo to 240HP flywheel less 20HP = 220HP ground

Either way, I guess its symantecs considering we are talking about a 0.7HP gain.

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Masta OC
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Yeah, I think it's a ratio of the total HP produced... so your net HP loss in the drive train increases with Performance mods.

But you are right... we're arguing about .1 HP difference (or less) either way. I just like being right. laughsilly


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I wonder how many dynos it would take to prove the 0.1HP?

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Masta OC
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I'm pretty sure that's well within the margin of error.

I guess you could dyno a 6-speed with the mod 10 times and average out the gain... then an auto 10 times and average it out. Still, I don't think anyone here has that much free time on their hands. rofl


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This is a stupid mod.

If you feel any difference in power, then please buy a $50 chip off of me to boost your flywheel horsepower by 50 BHP!

The dyno for this mod says it gives a gain of 1hp. Whoopie! You can't even feel 1hp. The same effect can be felt when you are low on gas, or you take your bookbag out of the trunk of your car.

Also, let it be known that a gain of 1hp is not even really a gain most of the time because the margain of error on a dynometer can ofter be a few horsepower.


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seabass
2000 Toyota Celica GTS
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Originally Posted by DiabloGTS
I worry about it, because having your car stall out during a panic stop means you lose steering AND braking.

Doesn't sound like the kinda thing I'd want to have happen to me in the snow, or in the rain when I need to control the car in a skid spineyes

make sure your clear on this you loose abs and power steering not steering all togeather

if i can wrestle a 5k pound ramcharger with 33's on it to a controled stop with no power the celica should be a cake walk


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Wheezy Joe
2002 Kawasaki Ninja 250
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CID, plugging the tube isn't what goes wrong.

The engine runs out of air, because the valve closes at idle, making the air come in at a higher velocity.


To have played and laughed with enthusiasm
and sung with exultation
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Originally Posted by Gen7fan
This mod is masturbation, leave it at a drop in filter (K&N or TRD) or get a aftermarket Intake. Not worth killing yourself just to say you have a mod. thumbsdown

i got the trd Performance Intake filter, but when i was doing the install i decided to take out the butterfly too... shouldnt the guys who have taken it out with there CAI's have problems too?? with braking??

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Taking out the butterfly is more of a sound thing than a Performance thing...

I took my butterfly out (about 1-2 weeks before my CAI went in smile ), and I didn't have any trouble at all. But I've yet to be in a situation where my ABS needed to kick on (in the Celi, that is!).


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ct
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2000 Toyota Celica GTS
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too much thought went into this thread... thumbsdown rofl

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Adrenaline
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Adrenaline
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Originally Posted by CelicaRacer05
Originally Posted by Gen7fan
This mod is masturbation, leave it at a drop in filter (K&N or TRD) or get a aftermarket Intake. Not worth killing yourself just to say you have a mod. thumbsdown

i got the trd Performance Intake filter, but when i was doing the install i decided to take out the butterfly too... shouldnt the guys who have taken it out with there CAI's have problems too?? with braking??

i'm in the same boat as you, with a CAI they ditch the whole airbox, but would you still have this problem?

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