Contour Enthusiasts Group Archives Forums Modifications Forced Induction My e-Ram IS a dud!!

Originally posted by Paul Kienitz:

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I notice that there is a scraped spot on the inside where apparently the fan blades rubbed during operation at least once, but I'm pretty sure it was not pinched there in its working install position... or was it?

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Even on the old metal ones you could tighten the hose clamps tight enough to make the fan blades scrape the housing. In fact, that's how I lost mine... because I was scared of over tightening them and I ended up leaving them to loose.

As for the difference in wattage Kermit, look at the post above yours for the words "custom winding". Most likely they rewound it with a slightly thicker gauge to handle the 12V car battery and it's different amperage discharge rates when compared to the 7.2V or 8.4V batteries most model engines are designed for.

Originally posted by bnoon:

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As for the difference in wattage Kermit, look at the post above yours for the words "custom winding". Most likely they rewound it with a slightly thicker gauge to handle the 12V car battery and it's different amperage discharge rates when compared to the 7.2V or 8.4V batteries most model engines are designed for.

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The stock FAI-15 is meant for 9.6 to 12.0 volts, so they probably used thicker gauge to draw more current.

Besides the custom winding, also keep in mind that the 375 watt rating is, I believe, for continuous duty. When used for short periods, typical electric motors can often handle twice the wattage they would be safe with for long runs.

That's one thing that's cool about electric cars... a motor rated for as little as 40 horsepower can give you adequate driving acceleration, because it's only applied briefly.

that's what i figured , just wanted to make sure...

i know this is a little off topic but i'm having problems with my Tornado system...

Paul is trying something pretty new. At least one member dyno'd a gain w/ this thing (on a different engine, though). I'm giving him props. I hope it works out. Even if it doesn't, I'll still give him props for 1) trying something new, and 2) letting us know about "snake oil"

Well, the e-RAM guy bench-tested my unit and says it's working up to spec, drawing 47 amps and putting out the expected thrust, so he's sending it back.