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Old 10-28-2011, 10:13 PM   #6
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Originally Posted by jmcrides03 View Post
sounds like its got some issues. knocking like a diesel at the end. i still may boost my spi got almost all the parts to do it. id say rough estimate if its at like 10 psi it should be around 170 hp and 200 torque the spis can make enough power to haul ass in stock trim+ a turbo kit but as with anything using stock internals on an fi application its all in the tune

the term turbo kit is used loosely there is no "kit" for spis
wonder what size the turbo is... you may be right assuming it's decently sized. the sohc mazda has 4 extra intake valves and .2 liters on the SPI, and makes around 175hp and 240tq on stock turbo at 10 PSI. Really curious what a T3/T4 would do to it.
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