03-11-2011, 02:00 AM
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#1 (permalink)
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EcoModding Apprentice
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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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03-11-2011, 04:28 AM
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#2 (permalink)
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X-Frenchy: very
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Very interesting, I'm going to look under my hood by curiosity 
Denis.
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03-11-2011, 07:20 AM
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#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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03-11-2011, 08:25 AM
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#4 (permalink)
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X-Frenchy: very
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Quote:
Originally Posted by Frank Lee
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.
__________________
Save money & CO2 at home : http://ecorenovator.org/
Created and managed by the creators of http://ecomodder.com/
---
Earth and health are priceless, so are kilotank and AT-PZEV
Best Mégane tank: 1268.9mi @ 77.847 MPG(US)
2008/06-2011/10 saving: - 5725.5 kg CO2 (5342.6+382.9)
- Diesel / Money: 42.17% = 2446.25€ = 3357.26$
---
megane : thread - kill switch.
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03-11-2011, 08:53 AM
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#5 (permalink)
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Quote:
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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.
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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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03-11-2011, 09:22 AM
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#6 (permalink)
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X-Frenchy: very
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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.
__________________
Save money & CO2 at home : http://ecorenovator.org/
Created and managed by the creators of http://ecomodder.com/
---
Earth and health are priceless, so are kilotank and AT-PZEV
Best Mégane tank: 1268.9mi @ 77.847 MPG(US)
2008/06-2011/10 saving: - 5725.5 kg CO2 (5342.6+382.9)
- Diesel / Money: 42.17% = 2446.25€ = 3357.26$
---
megane : thread - kill switch.
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03-11-2011, 06:53 PM
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#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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03-12-2011, 01:12 AM
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#8 (permalink)
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EcoModding Apprentice
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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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03-12-2011, 01:39 AM
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#9 (permalink)
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03-12-2011, 03:51 PM
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#10 (permalink)
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Master EcoModder
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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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