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Erick
Bread Fishing..
Erick May 12, 5:50am - #177034 

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2001 Toyota Celica GT

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Bay Area, CA
CAI will decrease performance w/ stock exhaust?

So will a (AEM) CAI decrease Performance w/ stock exhaust??

I came across this thread:
GreyStreet posted
request...how a CAI will make a GT sound

and some members said it would and some said it wouldn't decrease Performance with a stock exhaust?? confused

LNK
"you only need something when you know it exists..then it becomes a want"
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ReX
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ReX May 12, 7:52am - #177035 
2003 White Toyota Celica GT
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2003 Toyota Celica GT

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Northern California
From personal experience I would say no. I have a GT when I put mine on I just had the stock exhaust & I could tell right away that the Performance was better. By better I mean more low end torque and a lil more HP that you could feel. Not a whole bunch but enough that you can tell the difference.
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spaztikid
dikitzaps
spaztikid May 12, 8:04am - #177036 
dikitzaps
1974 Toyota Celica

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LA
read what i said in the other thread...
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Erick
Bread Fishing..
Erick May 12, 8:23am - #177037 

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2001 Toyota Celica GT

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Bay Area, CA
What spaztikid said in the other thread thumbsup

Originally Posted by Eyger
Im not 100% sure, but I don't think it's a wise idea to put a cold air on your car with the stock exhaust. I would believe that it could decrease Performance due to the fact that you are taking in more air than you can put out. I think you should get an exhaust first!


Originally Posted by spaztikid
thats not true...


and as for the sound... deep.

LNK
"you only need something when you know it exists..then it becomes a want"
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Erick
Bread Fishing..
Erick May 12, 8:23am - #177038 

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2001 Toyota Celica GT

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alright sounds good then..just was feeling a tad bit worried that a decrease in Performance would actually happen..

thanks thumbsup

LNK
"you only need something when you know it exists..then it becomes a want"
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Speed4TheNeed
Caleb
Speed4TheNeed May 12, 11:13am - #177039 

Caleb
2000 Toyota Celica

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New Orleans, LA
it won't decrease Performance. if you need proof..i have a few dynos of celicas with only CAI's and as you will see..there is a slight torque increase and a slight whp increase, definately not a decrease thumbsup
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Caleb
Speed4TheNeed May 12, 11:14am - #177040 

Caleb
2000 Toyota Celica

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New Orleans, LA
here is one of a celica gts with only an AEM CAI:
1869985057-aemcai.jpg
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Speed4TheNeed
Caleb
Speed4TheNeed May 12, 11:16am - #177041 

Caleb
2000 Toyota Celica

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Posts: 6,372
New Orleans, LA
and here's another with only the Injen CAI:
1869985058-injencai.jpg
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GQ540
Member
GQ540 May 12, 2:41pm - #177042 

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2000 Toyota Celica GT

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Posts: 165
Houston, TX
No, it will not decrease Performance. I recently put in an AEM CAI on my auto GT, still running with the stock exhaust. I immediately noticed a difference in hp and torque beginning at around 3500 RPMs. Also, the higher the RPMs you go, the louder and sweeter it sounds. thumbsup

"Dream as if you'll live forever; live as if you'll die today." - the original Rebel
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ct
C'mon & hit me!
ct May 12, 2:46pm - #177043 

C'mon & hit me!
2000 Toyota Celica GTS

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Woodland Hills, CA
i think what people mean by decrease is that somemtimes Intakes bog even CAI systems and there are some dips in the power band compared to stock...but this is neglegible...mid-hi range CAI have been proven Performance-wise! thumbsup

Originally posted by SKOOF:
yoru such a clown, i wish you lived in nyc, i would love to just give you the beating that youve probably never gotten in your life.
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Erick
Bread Fishing..
Erick May 12, 3:42pm - #177044 

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2001 Toyota Celica GT

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Bay Area, CA
alright the proof is there.. I'll go with that

I'll save those dynos for future reference grin

thanks all thumbsup

LNK
"you only need something when you know it exists..then it becomes a want"
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JAIMEJAMES
Senior Member
JAIMEJAMES May 12, 4:11pm - #177045 

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2000 Toyota Celica

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Posts: 699
NorCal, Bay Area
Originally Posted by ct
i think what people mean by decrease is that somemtimes Intakes bog even CAI systems and there are some dips in the power band compared to stock...but this is neglegible...mid-hi range CAI have been proven Performance-wise! thumbsup
the bogging seems to have to do with the placement of the maf. you'd think AEM, Injen and the rest could do better "engineering" to prevent this. they probably believed the problem is so minor they felt the positives outweigh the negatives.

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ct
C'mon & hit me!
ct May 12, 4:21pm - #177046 

C'mon & hit me!
2000 Toyota Celica GTS

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Posts: 2,139
Woodland Hills, CA
Originally Posted by JAIMEJAMES
Originally Posted by ct
i think what people mean by decrease is that somemtimes Intakes bog even CAI systems and there are some dips in the power band compared to stock...but this is neglegible...mid-hi range CAI have been proven Performance-wise! thumbsup
the bogging seems to have to do with the placement of the maf. you'd think aem, injen and the rest could do better "engineering" to prevent this. they probably believed the problem is so minor they felt the positives outweigh the negatives.


this is true...blue bomber from NC has resolved this with a CAI modification...people have tried it with amazing results. thumbsup

Originally posted by SKOOF:
yoru such a clown, i wish you lived in nyc, i would love to just give you the beating that youve probably never gotten in your life.
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Posts: 199
CelicaTC
Member
CelicaTC May 12, 5:40pm - #177047 
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2003 Toyota Celica GT

Joined: Nov 2002
Posts: 199
Belgium
Quote:
[i]Originally posted by Erick]
What [b]spaztikid
said in the other thread thumbsup

Quote:
[b][i]Originally posted by Eyger]
Im not 100% sure, but I don't think it's a wise idea to put a cold air on your car with the stock exhaust. I would believe that it could decrease Performance due to the fact that you are taking in more air than you can put out. I think you should get an exhaust first!


Quote:
[b][i]Originally posted by spaztikid]
thats not true...


and as for the sound... deep.


How can an engine suck more in then it let out?? confused
Piston goes down and pushes the gasses out.
Piston goes up and sucks the gasses in.

Or am I wrong.

An aftermarket exhaust can reduce restrictions --> little more flow.
An aftermarket Intake can reduce restrictions --> more flow.

And thus it creates more power (but it is not much, unless the stock Intake and exhaust had a lot of restrictions).

BUT if the exhaust can not remove the gasses quick enough it could be possible that the engine can not suck more air in (even with an aftermarket Intake) and thus it would not create more power. I'm not saying this is with a GT but it could be possible. Just find out what the bottleneck of the 1zz engine is.
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slidr
Specialist
slidr May 12, 10:20pm - #177048 

Specialist
2000 Toyota Celica

Joined: Sep 2003
Posts: 3,077
Saint Louis, MO
Originally Posted by sPeEd4tHeNeEd
here is one of a celica gts with only an aem cai:
I think they may need to check the machine they used to get these results, or perhaps the dyno is a fake, but 10 horsepower increase after adding a CAI? wtf

Aqua Teen Hunger Force...number one in the hood, G
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spaztikid
dikitzaps
spaztikid May 12, 10:26pm - #177049 
dikitzaps
1974 Toyota Celica

Joined: May 2003
Posts: 5,346
LA
Originally Posted by CelicaTC

How can an engine suck more in then it let out?? confused
Piston goes down and pushes the gasses out.
Piston goes up and sucks the gasses in.

Or am I wrong.

An aftermarket exhaust can reduce restrictions --> little more flow.
An aftermarket Intake can reduce restrictions --> more flow.

And thus it creates more power (but it is not much, unless the stock Intake and exhaust had a lot of restrictions).

BUT if the exhaust can not remove the gasses quick enough it could be possible that the engine can not suck more air in (even with an aftermarket Intake) and thus it would not create more power. I'm not saying this is with a GT but it could be possible. Just find out what the bottleneck of the 1zz engine is.



our stock exhausts can let enough air flow... you can have a Turbocharged celi and stock exhaust and it will still flow the air...

aftermarket exhausts are just less restrictive.
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