if you're going the turbo route, just get an entire 2.5" exhaust to replace it. custom pipes and a muffler is the cheapest option you have. The only bad thing about that manifold is that it's a very weird flange (3 bolt). The flange is the same as on the 3000gt vr4s so, if you can find a tdo4 13g and use that, you'd have a nice small turbo to use. However, If your friend can get you some nice mandrel bent tubing, going for a custom manifold that can use a standard mitsu flange (4 bolt)
Unfortunately I haven't seen off-the-shelf pistons and rods available for the 4g37 motor. You can always go custom on those as well, it's not cheap.
The stock maf will get overrun in a turbo application, you can choose what you want. Whether it be a turbo maf, gm maf + translator, or a VPC setup.
Also be sure to read the turbo FAQ in this section, it will answer every question you could come up with for building up and turbo'ing a 4g37.
With all I've said, I recommend doing your maitenance first. Proportioners are relatively cheap, usually around $40.00 and then I'd recommend getting your rotors turned, new brake pads and bleed the entire brake system with brand new fluid.
I'll be honest with you, a 1.8 was my first car, and I still have it to this day, its a damn good daily driver. However, it's going to be more expensive to mod than a turbo AWD to get the results that a turbo AWD car will get with less than $1000 invested. I'm not going to tell you to sell it for a turbo, I don't know how old/young you are, but insurance for a new driver on a turbo car isn't exactly cheap.
And most of all, have fun and welcome to the site.
Unfortunately I haven't seen off-the-shelf pistons and rods available for the 4g37 motor. You can always go custom on those as well, it's not cheap.
The stock maf will get overrun in a turbo application, you can choose what you want. Whether it be a turbo maf, gm maf + translator, or a VPC setup.
Also be sure to read the turbo FAQ in this section, it will answer every question you could come up with for building up and turbo'ing a 4g37.
With all I've said, I recommend doing your maitenance first. Proportioners are relatively cheap, usually around $40.00 and then I'd recommend getting your rotors turned, new brake pads and bleed the entire brake system with brand new fluid.
I'll be honest with you, a 1.8 was my first car, and I still have it to this day, its a damn good daily driver. However, it's going to be more expensive to mod than a turbo AWD to get the results that a turbo AWD car will get with less than $1000 invested. I'm not going to tell you to sell it for a turbo, I don't know how old/young you are, but insurance for a new driver on a turbo car isn't exactly cheap.
And most of all, have fun and welcome to the site.
