Originally Posted by sirbrit
hmmm, unfortunate.. can anyone recommend reading material or video on understanding turbo and its effects hows and whys. and superchargers. looks like if I am going to do this later I am gonna have to learn some new stuff.
I would much rather do the work myself.. but I will have to get a much better grasp on terminology and such
Sirbit you are standing on the edge of a very high, very slippery slope.
I hope you base jump off it like most of us did here.
Having a goal is the most important thing in my opinion. Figuring out a plan that gets you to your goal is going to take a while if you want to educate yourself. Read, read, read.
I can tell you that power adders for the Miata are about as cheap as they come, due to the small size of the car. A mainstream full turbo system (kit) or a full supercharger kit will cost you just shy of $4000.
If your motor has high mileage, higher power levels may cause you reliability problems.
For 150whp, an MP45 supercharger kit will do what you want. I agree that getting a MegaSquirt is a good idea - the fuel/timing management that comes with the supercharger kits does the job but not elegantly. If you have any plans to start with 150 and maybe increase in the future... go with the MS. If you want the power and want to spend an absolute minimum of your time and involvement, buying an off the shelf kit is the way to go.
Anything above 250whp would benefit from forged rods & pistons plus a full upgraded fuel system, which significantly increases the cost. Most guys see this as the ceiling for power on a stock Miata motor. This is why having a goal is good - it starts narrowing down the options.