Car was retuned with Okada coil and HKS racing plug(Mao has sent the order, and HKS replied my email saying it's suitable for e85. so I decide to give heat range 8 a shot).
With a hot tmic (heat soak) car made 410whp at 1.4 bar aiming 11.4-11.6 afr, with zero knock court. Water spray was disabled since bonnet was opened.
The new coil seems made the mid range better on light to mid throttle, and no more misfiring. I will keep an eye on spark plug fouling.
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MY08 STI 422whp at 1.5bar on E85, built by Diversion Garage, assembled and tuned by EvoR
Update from new owner: 375whp at 1.4bar on 98, at Tokyo Motorsport
Last edited by s20525xxx; 30-11-2015 at 02:47 PM.
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