Re: Why the stock 4.7 air hat is special

From: Marty Galyean (mgalyean@acm.org)
Date: Wed Sep 20 2000 - 14:00:53 EDT


Cool, good info. The chamber could very well be tuned (or de-tuned, depending on
how you look at it) for noise reduction rather than performance.

Tim J Koth wrote:

> I have a completely non-scientific observation relating to this. I have a
> po-boy on my 2K 4.7 4x4 5speed. I removed it recently and put it back to stock
> because I had to take it in the shop with the check engine light on. When I
> had first put the po-boy on, I reset the computer like everyone said I should
> and drove for a while. It seemed to lose a little low-end right off the bat,
> but not alot. But after driving for 5000 miles and then putting the stock one
> back on I can tell you that I lost a wazoo-load of both low and upper end by
> going back to the factory air setup. I drove it that way for about 500 miles
> and have now put the po-boy back on. This time I did not reset the computer.
> Well we are back in the learning stage and the truck is getting faster and
> more responsive again the more I drive it. I think if you want it to get
> stronger you have to drive the hell out of it :-) Thats just the way
> my truck seems to be anyway....



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