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Old 03-04-2005, 04:33 PM   #6
Fletcher
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Join Date: Jul 2004
Location: Salida, Ca
Posts: 64
Mixed feelings.....

After speaking to Rob at scargo last summer about his intake much of what he said made sense. I know they try and mimic the expansion chamber by the throttle body and use multi size/shaped tubing for the intake. Evo by the way now uses the oem expansion chamber at the throttle body, so this is obviously one of the good design areas. I know from modding many cars (last one was a Mini Cooper S) that a well designed intake can give some power increase at the expense of noise. In some cases ECU reflash is needed to take full advantage of this. Rob at scargo also made this clear to me.
That being said the Euro tuners largely use BMC filters and that's all. A slight increase in flow to complement higher exhaust flow is probably in order but by itself is probably a wash. Many subjects claim to feel an increase in performance with the evo. In the real world maybe they do (most get the ecu done at some point). Can a dyno duplicate a real road experience, maybe half way. This could explain some of what clubhead has seen with his dyno results. The lack of true air flow is the biggest difference (around engine and into engine intake). Fans just cannot duplicate rolling down the road especially at higher speeds. Is it a waste of money....who knows. Sure, before and after dyno runs can tell alot but don't deliver the whole picture (a graph based on third or fouth gear full acceleration run, usefull but not tell all). And dyno's differ like you cannot believe. Mustang dyno's are much less likely to show a few h.p. while a dynojet can show 1-2 h.p. on it's graph easliy. Maybe there is more to be said for the fanny dyno after all. It is tuned for your car and experience after all isn't it. I am sure we will see more dyno plot's soon for intakes like the evo and scargo and I may well buy one at some point. Whether I will dyno or not is VERY debatable in my own mind. For every subjective fanny dyno that is out of calibration, there is at least one real dyno's that has issues of it's own (lack of high power fan's, corrected h.p?, .not to mention the typist behind the keyboard...no offense intended). They are all just tools and need to be put in there proper place in our minds.
"The truth is out there" Mulder said. It's just that every case may present a slightly different truth.
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