If you want to double the power of your winch

If you want to double the power of your winch, or if the anchor point is too close to let out enough cable for a strong pull, use a snatch block to double the line. Using a winch snatch block will double your load capacity and will allow you to spool out more cable to reach the maximum rating of your winch. For even more power, you can rig up a triple line pull. However, use caution with double and triple lines. As the strength of the pull increases, so does the amount of stress placed on each rigging point. Make sure your anchor point is rock solid and can withstand the force of the pull.
The length of cable you spool out also affects the power of the pull. All electric winches are rated based on only one full wrap left on the drum. The less line you reel out, the less power you'll get. For a maximum power pull, unwind enough cable to leave only one layer on the drum. If your anchor point is too close to spool out enough rope, double the line with a snatch block.