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Message: <blockquote data-quote="turbology" data-source="post: 354263" data-attributes="member: 10223">I thought, racing car dont' need VANOS because they simply dont' need it. They rarely get below 4000RPM, and having less moving parts in engine mean faster rebuilt and cheaper cost. And durability.I had various experience in turbocharging a car. From building my own exhaust manifold (log types of course), install emanage, turbo, injectors, welding the intake and exhaust, to tuning the car myself. But I am still far from calling an expert. I am planning to add SC down the road. But for now I want a system than I can log the data (throttle, duty cycle, O2, and etc).  For what you said at earlier post, what I know about tuning, I need to throw it all out and relearn. So getting a system that I can log the data sure will help me.The other reason: I am not sure how great is the stock DME mapping, but for most JDM cars, you can sqeeze few more hp using piggyback. Most stock ECU suck big time. (7x7 fuel map compare to 16x16). I hope to get few more hp from the hiop exhaust manifold that was installed in my car by previous owner. And I can put my Wideband O2 sitting in my home in good use.Thanks. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" /></blockquote>