NB8B CAI

Engines, Transmissions & Final Drive questions and answers

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aviper4u
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Re: NB8B CAI

Postby aviper4u » Tue May 24, 2011 12:10 pm

sliq wrote:
aviper4u wrote:saw an intake in a pic where it ran completely on the intake side down the front bumper near the fog lights, only downside was that the wiring had to be extended, anyone know which CAI this is?



pics?


tried to look on google while posting couldnt find again.....:(
if i find i will post, though it makes the engine bay look so much cleaner
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Re: NB8B CAI

Postby aviper4u » Wed May 25, 2011 12:53 pm

anyone using the below?
http://maverikmx5.blogspot.com/2010/03/waiting-cobalt-cold-air-induction.html
seems ok as it suck low and far away from headers

its official the cold side one i saw previously has disappeared from the internet :(
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Re: NB8B CAI

Postby sliq » Fri May 27, 2011 6:30 pm

err... that's an NC intake......

i remember roadster garage had an intake that was plumbed right behind the radiator. custom made.
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Re: NB8B CAI

Postby aviper4u » Fri May 27, 2011 8:27 pm

sliq wrote:err... that's an NC intake......

i remember roadster garage had an intake that was plumbed right behind the radiator. custom made.


yea that's right.

best one iv seen is that jackson racing one though from what i recall it only for na's
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NB8B CAI

Postby gslender » Fri May 27, 2011 8:32 pm

The JR CAI like on my blog is for the NA & NB.

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Re: NB8B CAI

Postby aviper4u » Fri May 27, 2011 8:57 pm

excellent decision made!

where did you get it from?
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Re: NB8B CAI

Postby Locutus » Fri May 27, 2011 10:57 pm

don't think that JR makes that intake for NBs. IL makes a similar one that looks less efficient so not sure if it'sworth the $$$
http://www.good-win-racing.com/Mazda-Pe ... takes.html

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Re: NB8B CAI

Postby NitroDann » Sat May 28, 2011 12:21 am

The Jackson racing cai IS a cold air intake but it takes air from a low pressure area... Just Sayin...

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Re: NB8B CAI

Postby aviper4u » Sat May 28, 2011 10:11 am

NitroDann wrote:The Jackson racing cai IS a cold air intake but it takes air from a low pressure area... Just Sayin...

Dann


so you are hinting at the one that needs a hole drilled through the firewall?
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NB8B CAI

Postby gslender » Sat May 28, 2011 10:51 am

I'm not convinced Dan is right.... There is an air gap where air would be sucked from in front of the radiator. Both cold and high pressure. If it was sucking from a hole (flush with bonnet) it would then be low pressure...but it isn't.

BTW I've got one so I could be either biased or just correct.... I can't tell.

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Re: NB8B CAI

Postby aviper4u » Sat May 28, 2011 11:00 am

hmm these guys seem to have used sensors?
http://autospeed.com.au/cms/title_Siting-Cold-Air-Intakes/A_1023/article.html

i like the idea of intake down low and far from headers also not close to cabin as i dont want any added noise (old man side of me talking) lol
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Re: NB8B CAI

Postby NitroDann » Sat May 28, 2011 12:48 pm

The best intake would be a duct in front of the radiator, making a cold very high pressure zone, then you plumb a sealed pipe into it.
The cowl ones work genuinely as they are in a cold high pressure area. jackson racing ones I am just not convinced that because its professionally made that it works.

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Re: NB8B CAI

Postby aviper4u » Sat May 28, 2011 8:44 pm

NitroDann wrote:The best intake would be a duct in front of the radiator, making a cold very high pressure zone, then you plumb a sealed pipe into it.
The cowl ones work genuinely as they are in a cold high pressure area. jackson racing ones I am just not convinced that because its professionally made that it works.

Dann


i agree something down low would be great though looks like there are no "of the rack" products as such, probably because CAI's only increase HP by very small amounts but ill take what i can get eh

This has guy has the cold side idea down pat
http://www.google.com.au/imgres?imgurl=http://img.photobucket.com/albums/v391/EmMi_SoN/DSC_0004.jpg&imgrefurl=http://forum.miata.net/vb/showthread.php%3Ft%3D314998&usg=__zZS1x7JG-OgMnLuZ4s7e7vpaNs8=&h=532&w=800&sz=112&hl=en&start=20&zoom=1&tbnid=M4G6dPrM6HeaTM:&tbnh=134&tbnw=193&ei=38PgTcnjHImWvAOSwrjCBg&prev=/search%3Fq%3Dmiata%2Bcold%2Bside%2Bcold%2Bair%2Bintake%26hl%3Den%26biw%3D1280%26bih%3D886%26gbv%3D2%26tbm%3Disch&itbs=1&iact=hc&vpx=127&vpy=499&dur=12&hovh=183&hovw=275&tx=158&ty=89&page=2&ndsp=30&ved=1t:429,r:24,s:20&biw=1280&bih=886
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Re: NB8B CAI

Postby Locutus » Sun May 29, 2011 1:00 am

you don't want a short intake like that. you want to INCREASE the volume of air between the filter and the throttle body in order to improve mid range torque & throttle response. google/search for the arc intake chamber.

not sure if you remember the intake on my old car, but when i replaced the stock cross pipe behind the radiator with an enlarged version from mania, mid range torque improved noticeably on the butt dyno.

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Re: NB8B CAI

Postby sliq » Sun May 29, 2011 10:28 am

that shorty cold side one you listed is the same as the autoexe (except the autoexe has a CF cowl).
HKS also make a short cold side intake. try looking it up on importmonster.

like locutus says. do not go down the short cold side.

and yes, it is noticeable.
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