[babydoll]

I just bought a 1987 nissan pulsar nx 5 speed, it's a nice car, real clean, but the performance is lousy, very slow. Can anyone tell me why and how to improve the horsepower, if I can?

 

[Sixways]

Your kinda screwed with that motor (ga16i right?) there is NO after market support for that motor. I know, I have one. The only way you can get it to be faster is if you do a motor swap. If that would be some thing your interested in there are a few different motors and variants that will work in a pulsar. you can always put a new exhaust on your car, that offers some hp gain for a small price. but sence there are no companys that produce one for us, you'll have to go to a local muffler shop. I know there is a place around my house that will do a 2" exhaust for $60, then you need a muffler so +40-200 depending on how high of quality you want. But it'll pep up your ride a bit.