Somewhat related, I remember a long time ago someone did a test on a 2002 LS1 Trans Am with the WS6 and without (keep in mind its N/A). The car had to go over 120mph for the Ram Air to add anything.
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Factory optioned WS6 vs the regular Trans Am. In order for ram air to be effective (at least for N/A gas) it has to be a completely sealed system, which it looks like yours is.In that experiment they Probably just used a tube of some sort mounted behind the grill or in a headlight recess. I've seen some still do it that way with PVC pipe, but isn't very effective like you said... The duct that I used is 8 in across, then tapers down to 3in so it's gathering a lot more air and force feeding it.:ft:
What's the gain sucking through 3" tube?
more peace of mind for me I guess when driving offroad and not sucking dirty air from the engine bay or wheel wells. Also better looking/stealthy than a snorkel
Probably nothing... But, I won't be sucking dirty air and dust an engine.