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Originally Posted by Dfishrmn
Real interesting thread, don't know how I overlooked this weeks ago. I did this mod about 6 months ago and had it listed on my custom tune sheet when I got my 87 performance tune. My setup is almost identical to Jack's second version except with flat black paint and the painted hose clamp. I also am using an AEM DryFlow panel filter which makes quite a difference over the stock panel filter acording to my "seat of the pants" dyno. I have confirmed this when I removed the AEM to wash it and put the stock filter in until the AEM dried. One other difference I did was to plug the factory baffles from the inside instead of removing them. In theory this should give a smoother air flow over the stock setup (Jack your thoughts?). It does give it a little more "throat" in sound when you open it up. All said and done I've spent less than $5 on parts and about 1 hour in time on the original setup with a little tweaking later. Was definitely worth the effort in my opinion and alot of fun to do!  |
I think you're talking about the "resonators" here? Those three weird things I had no idea what they were for until I started reading forums and learned about intake noise?
I'm quite certain they are "dampers" to reduce intake noise. If I'm right, they produce shock waves that cancel the ones that appear in the intake due to the inlet air flow. I doubt plugging them has had much effect except to make your intake louder. I left mine open, and, I think my intake noise is somewhat louder also, but not much. It's possible, quite probable really, that with a different intake area, you might need a different damper configuration. It might be instructive to block them one, two or three at a time in all seven (did I get that right?) combinations. I may try that if I get into a really experimental mood. I really don't think they have much of any effect on the air mass into the throttle body though, so I'd leave them open in the meantime.
Oh, and I've painted my hose clamp too. I know that's added 30 HP and 25 ft-lbs of torque!
- Jack