Lower restriction filter / cold air intake = better MPG?

Apr 08, 2006 24 Replies

This is another topic I'm interested in, so I'm starting another thread on it.

+-----------------------------------------+ | Charles Lasitter | Mailing/Shipping | | 401/728-1987 | 14 Cooke St | | cl+at+ncdm+dot+com | Pawtucket RI 02860 | +-----------------------------------------+

Well, yes, you can. But the modifcations to the engine would be much more far reaching than a new exhaust and/or intake system.

Perhaps - but why have all that extra HP if you don't use it. ;-)

You're absolutely correct. But when you have all that HP under your foot...

Doug

intake design is a complex subject. turbulence and resonance are

*major* factors in design that i do not see addressed in the typical "cai". if the resonance is factored right, it can redress some of the volumetric efficiency quirks any particular motor may have. conversely, a bigger pipe with incorrect bend design can cause more turbulent airflow than a narrower pipe with good bend design.

bottom line, yes, some cai's can work on some cars. detroit garbage is almost invariably advantaged. it's /not/ a given however that something with a complex tuned induction system like a honda, that replacement automatically means better results. otherwise every rice-kiddie's mickey mouse civic would spank my 1.5 dpfi. they don't, much to their annoyance. mine's old school automatic too, so it should be at a substantial efficiency disadvantage.

Of course, but when the term is used, no matter the original maker, the travesty can be imagined.. ;-(

More advertising hype, but AEM has a product advertised for trucks that uses a dry polyester filter and they claim a dust capture ability of as small as a micron ...

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| Charles Lasitter | Mailing/Shipping || 401/728-1987 | 14 Cooke St || cl+at+ncdm+dot+com | Pawtucket RI 02860 |+-----------------------------------------+

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