hmmm, will a ported throttle body with custom air intake, keep the low-end
about the same?
I also have a cat-back which took some low end!!
----- Original Message -----
From: "Shane Moseley" <smoseley@ix.netcom.com>
To: <dakota-truck@buffnet.net>
Sent: Thursday, February 14, 2002 10:16 AM
Subject: DML: Re: Throttle Body question
> 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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