I own a 98 impreza L with a naturally aspirated EJ22, and while looking the motor over I noticed a hole with a cap bolted to the engine. It looks like where a turbo would go, but I am not sure?

I think you need to read up on turbo's and how they work.

http://auto.howstuffworks.com/turbo.htm

Just leave it alone. If you want a turbo then go buy one that's already got it. You don't just "install" a turbo. The whole engine has to be replaced with a turbo version. There is no easy way to do that unless you buy a wrecked WRX, etc and install the whole drivetrain. The EJ22T is not an OBD-II (95+) engine and will not work easily in your car. The last year of production on it was '94. It's also not a powerful engine without modification. It makes 165 HP to your 135. Changing the whole drivetrain for 30 HP is kindof a waste.

 

If you really want more power - look into the frankenmotor swap - using a 2.5 bottom end under your existing heads, intake, and electronics. It's about 180 to 200 HP and no turbo is needed.

 

The cap which you refer to is on the back of the passenger side head? That's where the distributor goes for versions of that engine sold in countries where a carburetor is installed instead of the fuel injection - South America, parts of Europe, etc.

 

GD

Just leave it alone. If you want a turbo then go buy one that's already got it. You don't just "install" a turbo. The whole engine has to be replaced with a turbo version. There is no easy way to do that unless you buy a wrecked WRX, etc and install the whole drivetrain. The EJ22T is not an OBD-II (95+) engine and will not work easily in your car. The last year of production on it was '94. It's also not a powerful engine without modification. It makes 165 HP to your 135. Changing the whole drivetrain for 30 HP is kindof a waste.

 

If you really want more power - look into the frankenmotor swap - using a 2.5 bottom end under your existing heads, intake, and electronics. It's about 180 to 200 HP and no turbo is needed.

 

The cap which you refer to is on the back of the passenger side head? That's where the distributor goes for versions of that engine sold in countries where a carburetor is installed instead of the fuel injection - South America, parts of Europe, etc.

 

GD

 

You don't know how much money he has. He could always buy this:

 

http://www.avoturboworld.com/avoshop/impreza-turbo-p-124.html

 

Jacob

If you really want more power - look into the frankenmotor swap - using a 2.5 bottom end under your existing heads, intake, and electronics. It's about 180 to 200 HP and no turbo is needed.

 

GD

 

Mind if I ask where that HP figure comes from? I'm just curious - not about to dispute it.

He's getting it from where I've told everyone to look if they have questions about this build: The High Compression Frankenstein thread on NABISCO. Here's one bit of info from it:

 

http://forums.nasioc.com/forums/showpost.php?p=30122540&postcount=8

 

Jacob