I do the same question.

OP said he was not running ponzi scheme. But not explained how generates high returns for investors ...

170% in one week is an extremely risky plan and your website does not have information on activities which justify OP has the means to pay investors without using money from other investors.

Many owners of sites that promise high returns over 150% in 4 or 7 days already used various methods to become "sustainable" their sites:

One of these "methods" is to make reset every cycle (someone correct me if I'm wrong), and even with this "method" sites have collapsed.

what methods you will use to prevent your site from collapsing in about 7 days?