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Re: 5.3 vortec gas mileage question
Quote:
Originally Posted by Keith Seymore
I am encouraged to see that change in philosophy since I can't see how a new air induction system could help.
I designed the original air cleaner and ductwork for the GMT800 models. We sized them to flow for the largest engine available at the time, which was the 8.1L gas engine (272 g/s at 1" Hg flow restriction, air inlet to throttle body).
The spec for the 5.3 was 225 g/s, so there should have been plenty of additional capacity.
In theory, adding a "free flow" aftermarket air induction shouldn't do a thing.
K
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Keith, glad you chimed in. Just don't go and give the guys at gmfullsize.com any fuel for the fire please!  The GMT800 intakes were a definite improvement from the days when flipping your TBI lid would make your truck scream though! Seriously though if you checked in over there you'd be an instant hero and villain all at once.
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'20 Silverado Trail Boss ~ '17 Tahoe ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '71 Cheyenne swb ~ '55 Pontiac Safari ~'50 3100 bagged ~ '80 Wife ~ Late model kids
Last edited by LEEVON; 05-24-2010 at 04:41 PM.
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