150HP? Options

[Spartacus94]

Ok so i have a 1994 celica ST with 165k miles. I know the engine puts out roughly 110 HP and I'd like to increase it to 150ish without having to supercharge or turbo it, most of the turbo celicas around here sound and look very bad and beat up, and honestly i don't want to spend the money. So what are my options to increase horsepower?

[blu94gt]

I don't know the specific options for the ST, but you'll probably spend about as much as you would for a turbo-setup to get that kind of power without a turbo. I'm guessing things like forged pistons and rods, machining the crank, regrinding cams, light flywheel, port and polish head and intake, full exhaust, custom intake, probably a valve job on the head, maybe a shaved head or thinner head gasket to increase compression. Probably lose options like AC and power steering, rebuild the power steering rack without the seals so it's a manual rack, etc. Then to help get the power you want you'd want some lightweight wheels, probably custom axles, good tires, etc.

There are some good custom turbo setups here, it's all about your own quality of work if you do it yourself, and your patience to do things right instead of just rigging things together.