NA8 BP05 cap idle air with filter?
I’ve got an MS2 and I’m building the intake for a non-turbo build (replacing MAF with the GM IAT) but I’m having clearance issues with getting a nipple in to route a hose to the IAC.
Can I get away with just capping the IAC with a filter? Or, still ghetto, but less so (?), can I route a long hose with a filter so it’s roughly near the main intake filter? I’m [naively] assuming that the idle control is really only for cold-starts and under hot load, this circuit isn’t sucking any air. At this point it’s not lost on me that I should’ve just done the head swap to get all the benefits of the 4W throttlebody…. Appreciate all help and suggestions in advance. Thanks. |
You can put an NB throttle body on your NA head. The IAC is always allowing air flow at idle. It needs filtered air.
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With speed density while naturally aspirated, you can use a small filter right on the IAC input port. This is not an option for FI without a check valve, or on a metered (AFM or MAF) configuration.
Edit: I should note that you will not be getting accurate IAT like this, and are more likely to heat soak the IAT sensor during extended idle periods. |
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