How much boost is too much boost?

cjausfahl221
Tue, 03 Oct 2023 16:13:16 +0000
Power/Fuel

Hi, I’m a little bit newer on the car scene in the sense that my current car, a 1994 Mitsubishi Eclipse GS, is my first project car to really modify. I’ve been in and around cars and modifications for years, but no one’s ever really explained the process of figuring out how much/to boost a (for all intents and purposes, stock) engine.

How do you know where to start with numbers on pressure and horsepower increases? How do I know whether or not while my crank and connecting rods might be fine, maybe the engine spools too much and runs at much too high RPMs?

edit: the motor in my Eclipse is a NA 2.0L I4 16V DOHC, if that gives any helpful context

13 posts - 9 participants