Postby JPaps1 » May 14th, 2021, 5:33 pm
You wouldn't get much more power from doing bolt-on mods to the GA15. It's tuned for economy so even putting a turbo on it, all the work considered (drilling, upgrading fuel system, buying a turbo, intercooler, piping etc) won't be worth it. After doing all that you would probably only get an extra 40 or so HP, then there is the risk of your engine dying prematurely because it just wasn't designed to take boost. The best thing to do, if you want to run a turbo is to buy a SR20DET conversion kit from a scrap yard dealer. That's the cheapest option I'm aware of and your car would be making double the power- and you can always experiment with a bigger turbo / external boost controller to up the boost slightly for even more power if you want. But.... You'd have to run premium gas- that's something most people don't consider when turboing, and gas getting real expensive these days