MR2 Roadster Owners Club

The Workshop => Performance Related => Topic started by: ninjinski on July 31, 2005, 17:11

Title: e-RAM Supercharger
Post by: ninjinski on July 31, 2005, 17:11
http://www.electricsupercharger.com/eram2.php

Has anyone any ideas what this would be like in the 2? Would it damage the engine for example and would it work?

What perf could you expect to see?

Can be seen here too http://www.akamoto.co.uk/electric-supercharger.asp
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Post by: Anonymous on July 31, 2005, 17:13
It's what is known as 'A Complete Waste Of Money And Could Actually Make You Lose HP Due To Obstruction In The Intake Pipe'.


Or ACWOMACAMYLHPDTOITIP for short.   s:wink: :wink: s:wink:
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Post by: ninjinski on July 31, 2005, 17:15
But its actually blowing more air into the engine than normal using an electric motor?
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Post by: Anonymous on July 31, 2005, 17:17
Not necessarily: That fan is causing one hell of an blockage in the pipe, meaning less air can get in.
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Post by: aaronjb on July 31, 2005, 17:33
Quote from: "ninjinski"But its actually blowing more air into the engine than normal using an electric motor?

Only if it can shift anything close to the enormous volumes of air that an engine consumes when running..

I seem to recall someone once working out that to run a suitable fan at a suitable speed, you'd be consuming some 70A of current, which would be more of a load on the engine than you'd gain  s:lol: :lol: s:lol:

Basically.. snakeoil. Same as magents on fuel lines, things that clip around your spark plug leads and many other things of that ilk.

Buy one and we'll point & laugh  s;) ;) s;)
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Post by: Tem on July 31, 2005, 19:42
Quote from: "ninjinski"But its actually blowing more air into the engine than normal using an electric motor?

Is it...?

Think about it. We have a 1.8l engine that revs to 7000rpm. It's a 4-stroke engine, so it inhales 1.8l of air 3500 times per minute. Or a bit over 100 liters of air every second. Do you really think a tiny 12V computer fan can move that amount of air?  s;) ;) s;)
(the above assumes 100% efficiency, which isn't true in real life, but you get the point)

And even if it could, it's one thing to move air through a fan and completely different thing to actually force air to make pressure. Fan like that could never create any pressure.


There are electric superchargers that actually work. They are actually normal superchargers, but instead of a belt from the engine, they are spun by 3 starters motors. Needless to say they consume huge amounts of power to work, but they do work. Check this page:
 m http://www.boosthead.com/home.php (http://www.boosthead.com/home.php) m
(http://home.comcast.net/~adisak/TKT/ESC-550.jpg)
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Post by: ninjinski on July 31, 2005, 21:32
I live and learn   s:D :D s:D    s:D :D s:D