www.fuellesspower.com seems to be a scam site, selling a lot of "free energy" plans that do not work.
This article, http://www.keelynet.com/energy/clem1.htm, which is about the Richard Clem engine, mentiones fuellesspower.com at the end. There are other complaints about fuellesspower.com elsewhere online.
"In the last part of June 2001, Rick Harrison, president of Creative Sciences sent an email to KeelyNet saying he was prepared to sue if we did not stop 'bad-mouthing' his company. The website is http://www.fuellesspower.com and I told him go ahead, since I and many others would love to see them prove their overunity claims in court. Since then he has not responded back and the website is not responding, so I think they are changing their claims. We also have several emails from others who say Creative ripped them off and one from Brazil saying its been 60 days after he sent about $115.00 and received nothing."