Oh really?
http://en.wikipedia.org/wiki/Pseudoscience
Do you honestly believe that an intake gained him 36% more horsepower? 34 HP from an intake in a car without a bad intake system to begin with. 34 HP on an engine that gets ~93 hp from the factory with JUST an intake? 57.9% increase in fuel economy????????? Heck 20% over the EPA rating is pretty hard to buy. The car gets 26mpg from the factory, therefore he is claiming to have gotten an additional 5mpg over stock by just putting on an intake, and he is claiming an intake is giving him 12mpg over what he was getting. He must have gotten one of those intake tornadoes and fuel line magnets
i honestly believe the airbox on his car was crap ... just like ours is. That tiny hole in the airbox is defeninately a bottle neck.
i also believe the forward facing scoop is far better than the wheel well filter arrangement that so many members have .. that is from my own experience too. Check out open wheel racing formula... they all have forward facing airscoops/intakes ... the inlet size of which is regulated to restrict power levels.
What this guy has claimed .. ie better fuel economy and lower running temperatures is what i have found too. Not what he claims but an improvement. Personally my mpg was closer to the stock stated mpg afterwards, but it was below before. He didn't post a dyno sheet so he's talking at best odometer/gas in tank comparisons.
The findings that pipe sizes and bends affect airflow seem sensible. Also, siting and angle of scoop don't fly in the face of reason.
If his engine was down on fuel economy and power in the first place, then to end up 5% better fuel economy from where he was doesn't seem too massive a claim (depending on what kind of journeys the fuel economy was measured on). Heck my car was running in the low 20s and after putting the cold air on, the trip was claiming mid 30's ... i didn't believe that, i took from that, that my fuel consumption was moving in the right direction.
Reading that article i see the guy's findings consistant with what i found. I didn't for one second assume that the power gains he claimed would be directly transferable to my engine ... just like the ebay stuff claims figures very few achieve.
I understand your dismissive attitude towards the guy's claims .. but if you take from it that there are improvements from opening up the intake then you will be looking at it sensibly. Maybe i should have put a disclaimer that i don't vouch for the guy's results and that everyone should make their own before and after readings.
If i've misled anyone in any way (by saying the guy had done the math) that was not my intention. I was refering to the pipe and bends aspect, but i didn't say that so your reaction is understandable. .... I can say that broadly speaking, what that article says is what i have found myself.
to make one of these intakes is cheap and easy ... so no harm can come from trying ... i'd be interested if others find as i did .... G.
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