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RE: What MPG and HP increasing devices NOT to buy!
I have done and still do the acetone in my car. It had no noticable effect on my MPG, however I did notice an increas in power.
As for K&N, screw that! K&N sucks big balls, if you have a K&N on your car you might as well take it out and leave it open.
This is an independant studdy on several filter brands, including K&N.
This study proves that,
-K&N lets an enormous amount of dirt through
-K&N has negligable increase in flow (especialy at the rates that most of our engines run)
-K&N is more restictive than other brands as it gets dirty
And that in general K&N sucks. If you want a filter get an AC Delco filter, that is 150 times more effective at dirt removal than K&N, and does not require rutine mainainance.
RE: What MPG and HP increasing devices NOT to buy!
i increased mileage by changing oil when time is due, fuel injector cleaner, headers, CAI, o/r pipe, and flows. went from 14 to 16-18 (depends how hard i drive)
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RE: What MPG and HP increasing devices NOT to buy!
The airtemp intake chip does work. You can feel it right away. Ya just have to watch which ones you buy. There is alot if junk on ebay with price ranging from 1.00 to 100.00 they are basicly just a resistor that tricks your computer into more air and timing advance. I got mine through A&A the brand escapes me now. They are a snap to put in and mine came with all wires and crimp connectors. This one dosent abandon existing ATS it wires in parrell with it which was different from most. Im sure some guys will blow holes in this chip, all I can say is the proof is in the way it accelerets compaired to before. Anyhow for 50.00 its cheap horsepower and about the same MPG.
RE: What MPG and HP increasing devices NOT to buy!
good question. same as when all the hybrid cars, such as the prius, came out saying 72 mpg now they claim way less. they prob. test the product in optimal coditions. they prob. used a vehicle with the wind pushing at their back going down slope, with stuff like synthetic oil, lucas injection cleaner, octane booster, etc...that's my theory on it. or instead of using a car, they just put it on an engine dyno and ran it at low rpm's constantly. i was reading an article about how they were able to make such claims on the hybrids, they used only dry conditions, with winds at the car's back on down slopes, with smaller tires, and some other crap.
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RE: What MPG and HP increasing devices NOT to buy!
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