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Originally Posted by Dean
While the STI is up at respectable 1 Bar of boost at 14.5 PSI, the EVO is at a whopping 1.34 BAR or 19.5 PSI. The later leaves litle to no room for additional tuning, and to be honest, I'm amazed they can run that much boost on our crappy west coast 91 octane oxygenated gas. The ECU must and knock sensors must be working overtime to avaoid the engine banging itself to death.
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You're exaclty right. On 91 gas, the EVO is down something like 30hp!! Plus it knocks all the time. All this according to Shiv's initial reviews after running the EVO on his dyno over at Vishnu. However, I hear they've sorted all that out and have a Stage 0 out for the car that boosts power on 91 octane and smooths everything out.
I think the STi's the better overall car... just throw a stiffer rear bar on it, and that should take ot the understeer that C&D was bitching about. Then the only thing missing is the 13:1 steering ratio.