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Old 03-11-2011, 01:00 AM   #1 (permalink)
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an intersting read if you have the time (ram intake air claims about fuel economy)

Ram Air Project

so performance ir filters CANgive you fuel economy improvements if done right,

i like how he discusses the angle of piping ad how it can reduce efficiency. i thought it was quite interesting

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Old 03-11-2011, 03:28 AM   #2 (permalink)
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Very interesting, I'm going to look under my hood by curiosity

Denis.
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Old 03-11-2011, 06:20 AM   #3 (permalink)
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Oh NO, not the Dodge!

I came across that many years ago...

That "piece" is so bogus I ain't even gonna read it again.

Well... maybe later, for entertainment, if I get bored.
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Old 03-11-2011, 07:25 AM   #4 (permalink)
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Quote:
Originally Posted by Frank Lee View Post
That "piece" is so bogus I ain't even gonna read it again.
Franck, for the no-knowledge man I am, could you please give some examples.

Thanks in advance,

Denis.
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Old 03-11-2011, 07:53 AM   #5 (permalink)
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Quote:
I saw a 57.9% increase in fuel economy (but I wasn't getting the stock EPA fuel economy rating, it nets a 20% improvement over the EPA rating). Horsepower based on 1/4 mile time says I gained 36.6% (34 HP), which I account mainly to the very poor breathing of the stock 2.2.
Look at these claims, all from bits of dryer hose. No porting, no camming, no nothing except this hose. I don't think so.
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Old 03-11-2011, 08:22 AM   #6 (permalink)
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Thanks.

While reading I simply ignored the amount of improvement and just read the numbers as a positive/negative improvements.

The rest of the document, all numbers replaced by 'positif' or 'negatif', seams correct to me.

Denis.
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Old 03-11-2011, 05:53 PM   #7 (permalink)
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Plug his numbers into a turbo boost calculator... I did it once back in the day re: this very article. To get that kind of HP increase require much more boost than available from "subsonic" atmospheric ram pressure.
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Old 03-12-2011, 12:12 AM   #8 (permalink)
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frank

i see where your coming from, the improvements are bogus but he took the time to show you how much air vilocity you lose if you have turns in your piping etc... it just got me thinking
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Old 03-12-2011, 12:39 AM   #9 (permalink)
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You'll like this then:

http://autospeed.com/cms/title_RamAi...4/article.html
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Old 03-12-2011, 02:51 PM   #10 (permalink)
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Ram air has been a big thing in motorcycle circles some years ago, leading to heated debates

It seems to help, if you drive at speeds that no hypermiler wants to go, and where fuel efficiency has already long gone down the drain.

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