Ok using the bmep method I only need 68psi to equal the same torque my engine has now. I was also thinking of using liquid nitrogen under pressure as the compressed air part. From what I've read liquid nitrogen will expand from one cubic mm to one cubic meter, there's suppose to be 1000 cubic mm to a liter of liquid nitrogen so I believe that means it has 27,000cf and I found one liter of it for $2 the only other problems I can think of at that point is the pressure, the temperature it will be at and the cost of tanks that can withstand that pressure!any more ideas???
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