Hey Scotty, I just recently bought my first car, a 2005 mazda miata with a 1.8L naturally aspirated engine, and I have a two fold question
first, the car is well taken care of and the engine sounds and runs great! However, it has 146000 miles and only 5 gears on a manual transmission, and the way the gearin is set up I'm pulling about 4100 rpm at 80 mph on the interstate. It has a 7000 rpm redline, but I wanted to know if that high of an rpm would end up damaging the engine over time or increase wear at an alarming rate, is there anything I can do to combat that aside from driving in the right lane? Also along the same vane, I plan on turbocharging it at some point in time. It has 10:1 compression, how much boost would you recommend if any at all?