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Discussion Starter #1
OK, so to gain 20hp from your mazdaspeed 3 heres a simple mod.

"According to a dyno test done at BEGI in Texas just three hours before I wrote this,
simply opening the airbox lid on a Mazdaspeed 3 gains 20hp." -dave/eyesoreracing

Kay, so I was a little skeptical when i tried this but i kinda feel the power. Oh yeah, and the stock BOV is loud as shit now!!!

i just unhooked the metal latches to the air box, kinda gave it some room to breathe and thats it.
So as i accelarate, i noticed a little more power, then in second... psshhhh

if someone can tell me how much power is gained from this id appreciate it
go try it :D :D :D :D
 

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thats basically the same thing as gutting your airbox...


idk about 20hp tho.
 

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The 20hp is what BEGi did on the dyno on the MS3 with the airbox cover off, there stock dyno was like 240whp

The CAI does close to the same, i dont know how it looks on the dyno but both are close to the same
Wonder if CAI installed makes the BOV alot louder also? Probably
 

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[quote author=araw at bituin link=topic=67604.msg1163302#msg1163302 date=1169514160]
OK, so to gain 20hp from your mazdaspeed 3 heres a simple mod.

"According to a dyno test done at BEGI in Texas just three hours before I wrote this,
simply opening the airbox lid on a Mazdaspeed 3 gains 20hp." -dave/eyesoreracing

Kay, so I was a little skeptical when i tried this but i kinda feel the power. Oh yeah, and the stock BOV is loud as shit now!!!

i just unhooked the metal latches to the air box, kinda gave it some room to breathe and thats it.
So as i accelarate, i noticed a little more power, then in second... psshhhh

if someone can tell me how much power is gained from this id appreciate it
go try it :D :D :D :D
[/quote]

Hey there smart guy...If you unhook the latches on your airbox you're bypassing the air filter and letting air go directly from the engine bay into the MAF and throttle.

That's a great way to get dirt and debris into your intake manifold and into the cylinders. Foul up your MAF and damage your compressor too.

Good thinking.
 

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noway...is that what an air filter does? filter out dirt and debris?? Amazing. I learn something new everyday on this forum. :lol:
 

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[quote author=AG DesignWorks link=topic=67604.msg1163598#msg1163598 date=1169521577]

Hey there smart guy...If you unhook the latches on your airbox you're bypassing the air filter and letting air go directly from the engine bay into the MAF and throttle.

That's a great way to get dirt and debris into your intake manifold and into the cylinders. Foul up your MAF and damage your compressor too.

Good thinking.
[/quote]

You took the words right out of my mouth.
 

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[quote author=araw at bituin link=topic=67604.msg1163302#msg1163302 date=1169514160]
OK, so to gain 20hp from your mazdaspeed 3 heres a simple mod.

"According to a dyno test done at BEGI in Texas just three hours before I wrote this,
simply opening the airbox lid on a Mazdaspeed 3 gains 20hp." -dave/eyesoreracing
[/quote]
I'm sure that you would get an immediate increase in HP as the increased airflow would lean out the air/fuel mixture. However, the ECU would adapt to some degree (by altering the long term fuel trim) after driving the car for awhile and "re-richen" the air/fuel mixture.
 

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Discussion Starter #9
[quote author=small town king link=topic=67604.msg1163329#msg1163329 date=1169515001]
thats basically the same thing as gutting your airbox...


idk about 20hp tho.
[/quote]

ooo, thats true. but im too scared to gut my air box :(
 

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Discussion Starter #10
[quote author=AG DesignWorks link=topic=67604.msg1163598#msg1163598 date=1169521577]
[quote author=araw at bituin link=topic=67604.msg1163302#msg1163302 date=1169514160]
OK, so to gain 20hp from your mazdaspeed 3 heres a simple mod.

"According to a dyno test done at BEGI in Texas just three hours before I wrote this,
simply opening the airbox lid on a Mazdaspeed 3 gains 20hp." -dave/eyesoreracing

Kay, so I was a little skeptical when i tried this but i kinda feel the power. Oh yeah, and the stock BOV is loud as shit now!!!

i just unhooked the metal latches to the air box, kinda gave it some room to breathe and thats it.
So as i accelarate, i noticed a little more power, then in second... psshhhh

if someone can tell me how much power is gained from this id appreciate it
go try it :D :D :D :D
[/quote]

Hey there smart guy...If you unhook the latches on your airbox you're bypassing the air filter and letting air go directly from the engine bay into the MAF and throttle.

That's a great way to get dirt and debris into your intake manifold and into the cylinders. Foul up your MAF and damage your compressor too.

Good thinking.
[/quote]

:tongue:
warranty? i duno, but i doubt that THAT much dirt and stuff will get "sucked" into a hole that small.
 

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Discussion Starter #11
[quote author=Boost Addict link=topic=67604.msg1163726#msg1163726 date=1169525809]
...which is why you would want a mod-specific tune (i.e.: COBB) to be getting the most efficient power out of your mods.
[/quote]

too much cash for me right now :cry:
 

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[quote author=Mattleegee link=topic=67604.msg1163397#msg1163397 date=1169516766]
The 20hp is what BEGi did on the dyno on the MS3 with the airbox cover off, there stock dyno was like 240whp

The CAI does close to the same, i dont know how it looks on the dyno but both are close to the same
Wonder if CAI installed makes the BOV alot louder also? Probably
[/quote]

Yeah matt... CAI's and even SRI's will give you more of an induction sound, especially during plumb back... I believe theres a video on CP-Es website of a CX-7 with their intake... you can hear the blow off valve sound, expect the speed3s to sound similar, just more isolated/defined, as the CX-7 was an automatic.
 

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IN -> PROCESS -> OUT

ha - so...I hope you got that cover back on.
on that note, if you ever do anything to your engine that increases the quality of fuel/air mix or anything along those lines. you have to upgrade your exhaust as well. to take care of the extra volume of gases going out.

something I learned when reading about four-stroke internal combustion engines when I was 14.
 

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if you bypass the filter, anything that you would normally see in the filter, will go directly into the engine. not good. and not worth 20hp even if it gives you that as your motor won't last long.
funny thing. I testdrove a civic si a few years back. the knucklehead salesman stopped me 1/2 through the testdrive to pull the air filter. he got back in and said, now try it!!! I felt bad for the guy who was going to end up buying the car.
 

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[quote author=araw at bituin link=topic=67604.msg1163791#msg1163791 date=1169527562]
:tongue:
warranty? i duno, but i doubt that THAT much dirt and stuff will get "sucked" into a hole that small.
[/quote]

So, by 'a hole that small' you mean the INTAKE TUBE LEADING TO THE TURBO??

It's called path of least resistance, you retard. If you open up the airflow AFTER the filter, your engine will not work to suck air through the air filter, it will draw from the free-flowing, dirty air from the atmosphere. Hence, all air going into the turbo will be from the engine bay, not from the filter.

Get a clue. Or, enjoy the turbo damage.
 

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wow that was harse, but I agree you don't want to damage your turbo or engine, the filter is there for a reason.
 

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[quote author=AG DesignWorks link=topic=67604.msg1164228#msg1164228 date=1169565361]
[quote author=araw at bituin link=topic=67604.msg1163791#msg1163791 date=1169527562]
:tongue:
warranty? i duno, but i doubt that THAT much dirt and stuff will get "sucked" into a hole that small.
[/quote]

So, by 'a hole that small' you mean the INTAKE TUBE LEADING TO THE TURBO??

It's called path of least resistance, you retard. If you open up the airflow AFTER the filter, your engine will not work to suck air through the air filter, it will draw from the free-flowing, dirty air from the atmosphere. Hence, all air going into the turbo will be from the engine bay, not from the filter.

Get a clue. Or, enjoy the turbo damage.
[/quote]

take a deep breath... exhale....
relax
 

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He was likely just messing around. I doubt anyone would run without a airfilter for long on purpose. Just for a while to feel the extra power that is potentally there from a better flowing intake. Like 5 minutes. Give the guy a break, after all it is called an "air filter". He obviously knows that dirt will go strait in to the engine bypassed. :dur:
 

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Discussion Starter #20
[quote author=AG DesignWorks link=topic=67604.msg1164228#msg1164228 date=1169565361]
[quote author=araw at bituin link=topic=67604.msg1163791#msg1163791 date=1169527562]
:tongue:
warranty? i duno, but i doubt that THAT much dirt and stuff will get "sucked" into a hole that small.
[/quote]

So, by 'a hole that small' you mean the INTAKE TUBE LEADING TO THE TURBO??

It's called path of least resistance, you retard. If you open up the airflow AFTER the filter, your engine will not work to suck air through the air filter, it will draw from the free-flowing, dirty air from the atmosphere. Hence, all air going into the turbo will be from the engine bay, not from the filter.

Get a clue. Or, enjoy the turbo damage.
[/quote]

hey man, calm down. no need for harsh language like that.
did i offend you by opening my air box filter or something?
 
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