preping my car for turbo

Information on the naturally-aspirated KA24E and KA24DE engines.
574-240sx
Posts: 9432
Joined: Sun Dec 01, 2002 6:27 pm
Car: Nissans, Toyotas, Subaru

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well this weekend I will be mounting the intercooler and installing the 370cc injectors, taping the oil pan, tuning the injectors down with the SAFC II. Monday I'm getting my JGS manifold. I have one question where to place stock o2 sensor on my downpipe. I was even thinking about not even installing it. I know it might run a little rich but it shouldn't effect timing right? I have no emmision here in northern Indiana. I'm planning on ordering the innovative LM-1 wideband unit Friday. Any ideas on if I should put in my o2 sensor? Thanks. Nick


:: orion ::
Posts: 1483
Joined: Fri May 23, 2003 4:40 pm
Car: '96 240SX, with KA-T @ 12psi...
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Yes...use the O2 sensor.

Under load and boost, it's ignored...but any ther time, such as part throttle cruising, highway driving, etc...you'll need it for any fuel economy.

Just weld a bung into the downpipe, at least ~12" from the turbine.

Put an extra one further downstream for the wideband, to extend the sensors life.

- Brian

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JDizzle
Posts: 127
Joined: Wed Jul 14, 2004 12:52 pm
Car: 1995 Nissan 240SX

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Why only 370cc injectors?

574-240sx
Posts: 9432
Joined: Sun Dec 01, 2002 6:27 pm
Car: Nissans, Toyotas, Subaru

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370cc to get the car running then I will take the step to 550cc if it holds for a while. is it possible to tune 550cc injectors with a safcII. Nick


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