Mitsubishi Mirage This sport compact offers economy without compromising comfort.

4g15 SOHC conversion to DOHC

Old 11-30-2008, 06:48 PM
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Join Date: Nov 2008
Posts: 1
Default 4g15 SOHC conversion to DOHC

I bought a 2001 mirage about 3 days ago. Found out that it does lack power but i dont have money to put a new engine in it. It came with a big ol' bumblebee exhaust and a large air intake. the engine is a 4g15 SOHC. i read somewhere that the engine can be converted to a DOHC to squeeze out some more horsepower. How is this done? How much would it cost? Please help me out.
Old 12-05-2008, 07:33 PM
Join Date: Jul 2006
Posts: 728
Default RE: 4g15 SOHC conversion to DOHC

The DOHC conversion is a bit of a job, and to my knowledge there are fewer than 3 DOHC converted 4g15's stateside. RPW is the only company that I know of that makes the conversion kit, and essentially you're swapping out everything but the bottom end on the car. While it's a cool idea, you're better off swapping to a 4g93 and modding from there.
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