So I just swapped a b20b2 into a 1998 honda civic coupe. I was wondering if anyone could tell me the WHP to the car now. Comparing it to the stock d16 that was in it. And the light weight of the car. As well as the torque without using the dyno. How much of an increase am I looking at.

 

Put it on a dyno. We don't do bench racing questions here. Your answer is easily found on Wikipedia.

 

Weight is not part of the calculation for horsepower. As grumble said, the power of your motor is easily found on Wikipedia with less than 30 seconds of searching.

 

EJ's are not lightweight.