Is there any concern for damage? I'm not planning to
do anything more than the cams and manifold,maybe the
TB later. I've already done just a cat-back exhaust
and a cold-air intake tube from Jon. Should no more be
done to a stock Dakota 4.7? Thanks!
Steve P.
--- "Bernd D. Ratsch" <bernd@dodgetrucks.org> wrote:
>
> It depends on the engine tune, weather conditions,
> driving style, and PCM
> program. What it did for my co-workers WJ may not
> be the same on your
> Dakota. The WJ's are a little lighter than the
> Dakota's as well.
>
> The HO cams, intake, and throttle body will
> definitely wake up the 4.7L
> though. Keep in mind that while the HO cams do
> work, they're designed for a
> 4.7L with higher compression and a different PCM
> program than the non HO
> engines.
>
> - Bernd
>
> -----Original Message-----
> From: Steve Preston [mailto:steveophonic@yahoo.com]
> Sent: Tuesday, August 21, 2007 7:23 PM
> To: dakota-truck@dakota-truck.net
> Subject: Re: DML: RE: RE: RE: 4.7L V8 TB Spacer
>
>
> 2 mpg gain?? Would it work on my 2001 4.7 Dak?
>
> Thanks! Steve P.
>
> P.S. HO cams and manifold on the way for it. :)
>
>
> --- "Bernd D. Ratsch" <bernd@dodgetrucks.org> wrote:
>
> >
> > Going by my experiences at the track, dyno, and
> > watching the fuel economy
> > with the modified TB's - they work. Too many
> people
> > have noticed the same
> > thing as well to say that they don't work.
> >
> > The 4.7L HO WJ that one of our sales people has
> > (with Fastman TB)...well,
> > again - the "doesn't work" theory is out. It made
> > an almost 2mpg gain and
> > the performance off the line and crusing is
> > noticeably better than with the
> > stock TB.
> >
> > The spacers - yup, make a nice whisteling noise
> but
> > do nothing else.
> >
> > - Bernd
> >
> > -----Original Message-----
> > From: Ray Block [mailto:bpracing@worldnet.att.net]
> > Sent: Tuesday, August 21, 2007 5:16 PM
> > To: dakota-truck@dakota-truck.net
> > Subject: DML: RE: RE: 4.7L V8 TB Spacer
> >
> >
> >
> > > -----Original Message-----
> > > From: Bernd D. Ratsch
> > >
> > > I've heard both good and bad on them - I do know
> > that they don't work on
> > > the
> > > Hemi's. ;)
> > >
> > > Personally, i'd save the $80 on the spacer and
> put
> > it towards a good
> > > modified throttle body.
> > >
> > > - Bernd
> >
> > Personally, having extensively drag strip (and
> > street) tested a stock 68 mm
> > throttle body vs. a Fastman ported 68 mm on my
> 4.7L
> > GC, I'd say save your
> > money again. On an internally stock motor a
> larger
> > throttle body doesn't
> > make any difference. FWIW, I stand by that
> > statement on the 5.2L magnums
> > as well.
> >
> > Ray
> > 2000 Grand Cherokee 4.7 - 15.40 @ 85.70
> > http://www.dragtruk.com/ENTRIES/20KM1FD2KWBP.html
> >
> >
> >
> >
> >
>
>
>
>
>
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>
>
>
>
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