Free dyno for stock 370z

tjlazer

Not sure about Cobb but they said they do tuning. You looking to do a tune?

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2009 370Z Monterey Blue,Nismo Conversion,RE-11's, K&N Typhoon intakes,Blue Kickplates,Homelink,FI 18" CBE,ERZ HFCs,Hotchkis sways, Swift Spec-R, EVO-R Highwing, UPREV

azn370z

No I don't need a tune. But I wonder if adding an intake will make it run lean. I kind of want the aem intake but probably won't get it.

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2010 k23
H&R sport springs / Spc rear camber arms / SSR SP1 / Berk cbe / Varis cf lip / Nismo S-Tune side skirts

Titan1080

Anytime you add a CAI with a larger intake tube, you're going to run a little leaner, basic fluid mechanics at work here. By enlarging the intake tube, the air velocity slows, similar to removing a nozzle from a hose. There's a larger volume of air moving through the tube and the engine is getting more air but at a slower velocity. What's creating the lean situation is that mass air sensors measure air velocity and the ECU calculates the air mass based on factory parameters for the stock intake and delivers fuel accordingly. It's possible, I would assume, for the most modern ECU to correlate the mass air sensor data with the O2 sensors in the exhaust, and I'm not as familiar with the VHR, but my Titan's ECU is not capable of adjusting for that on the fly, which my tuner noticed when he watched the datalogs on the dyno and had to enrichen the fuel delivery to account for my intake/exhaust setup.

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2009 370Z w/ Sport