I think Jon meant to say that DECREASED low-end is unavoidable w/a ported TB.
This is due to the fact that air moves slower through a larger orifice. The
benefit is higher volume potential as realized in the upper-end of the rpm scale
at a cost of low-end torque. This is also the basis of the factory "beer-keg"
intakes as installed on all 5.2 & 5.9L magnum engines. The smaller and longer
port runners give high speed airflow at low rpm's resulting in lots of low-end
torque but at the cost of limited upper-rpm flow potential.
Latr,
Shane
Jon Smith wrote:
> John, increased low end is unavoidable w/ a ported TB. If you're not
> interested in all out, every last ounce of flow (hp), then buy the least
> expensive (modded stock TB) available.... or do it yourself :-)
>
> > I am planning to change from the stock throttle body on my 3.9, and was
> > wondering in any of you have had a particular tb that works well on the
> 3.9.
> > I was looking at the ones on speed tweaks, and also mopar performance, but
> I
> > don't need a fully moded tb. I want a smoother idle and increased power
> but
> > I don't want the low end either, any suggestions. THANKS
> >
> > goodwrnch03@superpa.net
> >
> >
> >
> >
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