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10-06-2009, 02:42 PM | #37 | |
Drives: 07 sedan Join Date: Jun 2007
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Quote:
We don't have emissions testing so I don't care about them. |
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10-06-2009, 02:45 PM | #38 |
Drives: 07 sedan Join Date: Jun 2007
Location: Home
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I have other stuff to do, so post away, I will be back later.
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10-06-2009, 02:46 PM | #39 |
Drives: 2007 Yaris LB Join Date: Mar 2007
Location: San Jose, CA, USA
Posts: 685
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Alright, here they come:
California has special requirements for gasoline, which makes it more expensive because of less availability. We also use different blends for winter vs. summer. That's what I was referring to when I said "grade". Never thought or meant octane, you did. http://www.physics.uci.edu/~silverma/gasoline.html Here is the article on cold air intakes on Wikipedia (I really don't know what will convince you because you seem so arrogant as to believe that you and only you know the truth). The first sentence is: Standard air intake systems tend to be very restrictive, in order to eliminate engine noise. The whole article: http://en.wikipedia.org/wiki/Cold_air_intake I remember seeing a video interview with an engineering expert, when I was shopping for my intake and he was saying the same thing. That's the main reason, noise. I did not come up with this in my dreams. Unfortunately, I can't find the link to the video right now, but I will eventually and will post it here, so you can be enlightened as well. |
10-06-2009, 02:48 PM | #40 |
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Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
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@ camelll:
You said: It WON'T pass. I said: They do pass. You are incorrect that "it won't pass". That is not a factual statement. You can say "it won't legally pass", which I would agree with. But you didn't. done.
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Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific. |
10-06-2009, 02:48 PM | #41 | |
Drives: 2007 Yaris LB Join Date: Mar 2007
Location: San Jose, CA, USA
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10-06-2009, 02:49 PM | #42 | ||
Start another Oil Thread!
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then they add air chambers for low end torque then they add baffles to make them quieter IMO an intake on an econobox was designed FIRST to be cheap, Second to be quiet, and Third (waaaay out there) to make power.
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10-06-2009, 02:50 PM | #43 | |
Start another Oil Thread!
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explain how an intake can reduce or increase emissions please.
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10-06-2009, 03:00 PM | #44 |
Drives: 2007 Yaris LB Join Date: Mar 2007
Location: San Jose, CA, USA
Posts: 685
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Well see that's camell's point, I never said a CAI had anything to do with emissions. I said the stock intake's main purpose the way it is (different from a CAI) is to reduce noise.
So I believe you and I are on the same page here. But camell keeps stating that it's the emissions, which I disagree with. |
10-06-2009, 03:03 PM | #45 | ||
Start another Oil Thread!
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but from the aspect of "air quality" emissions, i have no idea how an intake would cause your car to blow out more "bad" gasses. now, if you're bypassing your PCV setup with your intake (dumping oily air into the environment) that could affect emissions, but it would not be measurable at the tail pipe with a sniffer.
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10-06-2009, 03:07 PM | #46 | |
Drives: 2007 Yaris LB Join Date: Mar 2007
Location: San Jose, CA, USA
Posts: 685
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That's what I think, too, it's the air/fuel ratio, the gasoline itself and the catalytic converter which determines what comes out the exhaust, not the air intake. |
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10-06-2009, 03:22 PM | #47 |
Drives: 2007 Yaris LB Join Date: Mar 2007
Location: San Jose, CA, USA
Posts: 685
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Camelll, here is more technical info, from www.autoanything.com:
Automakers design your vehicle's intake tube to be the quietest possible unit that can fit in your engine compartment. The complete link for your reading pleasure: http://www.autoanything.com/air-intakes/50A5A115A1.aspx |
10-06-2009, 04:07 PM | #48 |
Super Moderator
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Moved previously OT posts to this thread. Have fun fellas.
For the record, I'm 100% sure I can pass emissions with my Simota CF box filter.
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10-06-2009, 04:45 PM | #49 |
resident senior
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I say the primary function is shared .
In a cold air system there isn't any "box" or baffles to help muffle or deflect (maybe redirect is the proper term) the sound waves coming from the engine . Actually the exhaust and intake work almost identically , with the exception of the temps and flow direction . Take off your muffler and what happens ..... That's right... it gets louder . Same with the intake box . CAI are designed to increase flow . Sure your filter may be away from the engine or even shielded from the engine , but the actual intake tube is still being heated by means of convection (air flowing through radiator ) and conduction ( you know , those explosions that are generated in the cylinders ) not to mention friction . A true CAI would address all heat issues . A refrigerated wrap around ( the intake tube ) blanket comes to mind . As for emissions , that's easy . Add more air (CAI) and the ecu will compensate by adding more fuel . Which in turn means more pollution . A turbocharger or supercharger is a perfect (extreme) example of this . Yes I understand that a Turbo or SC forces air into the engine , but my point is more air = more exhaust . Keep in mind , any engine , is nothing but an air pump with accessories attached .
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10-06-2009, 05:00 PM | #50 |
Drives: 2007 Yaris LB Join Date: Mar 2007
Location: San Jose, CA, USA
Posts: 685
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But you don't need a CAI for that, just press the gas pedal harder and you'll get more air into the engine So what's the difference in the end?
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10-06-2009, 05:06 PM | #51 | ||||||||
Drives: 07 sedan Join Date: Jun 2007
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" This article or section has multiple issues. Please help improve the article or discuss these issues on the talk page. * It does not cite any references or sources. Please help improve it by citing reliable sources. Tagged since July 2008. * It may contain original research or unverifiable claims. Tagged since July 2008. * It may require general cleanup to meet Wikipedia's quality standards. Tagged since July 2008. Quote:
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If you removed your cats and did a sniff test with the stock box and then removed the stock box and put a cai on your emissions will be higher. The debate is not about if your catalytic converters do their jobs it is if the air intake will affect emissions. |
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10-06-2009, 05:09 PM | #52 |
Drives: 07 sedan Join Date: Jun 2007
Location: Home
Posts: 108
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Your getting more warm air into the engine with the stock box, you are getting more cold air with a cai, cold air is denser than warm air.
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10-06-2009, 05:14 PM | #53 |
Drives: 2007 Yaris LB Join Date: Mar 2007
Location: San Jose, CA, USA
Posts: 685
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So, I shouldn't believe Wikipedia, I shouldn't believe AEM, I shouldn't believe autoanything.com, but I should believe YOU, because YOU put my best interest at heart, while everyone else is just trying to trick me into buying their product.
Sure... |
10-06-2009, 05:19 PM | #54 |
Drives: 07 sedan Join Date: Jun 2007
Location: Home
Posts: 108
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No you believe what you want. That wiki entry is not reliable because: "It does not cite any references or sources. Please help improve it by citing reliable sources. Tagged since July 2008.
It may contain original research or unverifiable claims. Tagged since July 2008." No one has been able to verify the claims and if it has no references to back up its claims then it is a moot point. People that are selling you products are out to make money, not to give you the best advice possible. Again if a cai did not affect emissions then why would carb bother with it? You can believe what you want I have no benefit from telling you this. An easy way to prove this about a company is to dyno your car with your stock box on and then put the cai on and dyno it again. You are not going to get 5 hp from your intake. Do you have a cai or a sri? |
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