![]() ![]() This low end and mid range helps the car rocket out of the turns.Īt this point our HKS GT turbo is close to its flow limit. This is nowhere close to the most powerful Evo IX but we bet that its is one of the most driveable ones. The power comes on strong as well with the engine pulling hard from 3000 rpm all the way to 8000 rpm! That is one super wide powerband. The tuning when combined with the HKS ball bearing turbo and Full Race Manifold produces boost instantly, almost in sync with your throttle foot. Our cars driveability with the MIVEC system functional is amazing, the engine now has gobs of bottom end torque, to the point where it no longer feels like a 4 cylinder but a large displacement engine. We were previously running 27.8 psi peak falling to 22.7 psi with the stock turbo. Note that we are making over 100 hp more than our previous iteration of the engine with less boost. The turbo ran out of capacity and the boost fell to 21 psi at higher rpm although our top end power didn’t really fall off, thanks to our Cosworth M2 cams and MIVEC. This level of power and torque was obtained with 25 psi of peak boost that was purposely reduced at lower RPM to reduce torque to save the bottom end. Our car now made 479 wheel hp and 418 lb/ft of torque! Jason tuned the car to hold the torque down to below 420 lb ft to limit stress on our stock bottom end. ![]() The results of our tuning were pretty epic. Project EVO IX, Getting Lots of Power From the 4G63 With Link Engine Management Part 2
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