A billet CONE, that's bolted in the middle of the M1. It
turns the flat bottom of the M1-4bbl intake, into a curved
surface to help the intake flow evenly into each cyl.
Pretty basic design, but helps. My low end is less than
the barrel intake, but once I hit 2500 rpm the truck really
opens up... 3000 rpm the 1.7s give it a good kick, and then
a 3400 it rushes forward (M1) all the way to 5200 rpm (my
shift point). With a 2400 rpm stall converter, and a cam
more matched to the intake, the truck will really scream.
You 5 speed guys with 5.9Ls and 4-bbl M1 need to try the
turtle... if you don't like it, and plan on selling your
4-bbl for a 2-bbl, you'll get your money back on the resell
anyway.
Sam '00 RT
14.6 @ 95.5
--- Sam South <sawcut64@mediaone.net> wrote:
> Huh? Can you elaborate on this "turtle" intake mod.
> Sam South
> ET 13.61,MPH 105.88
> 95 Dak, 5.9L,3.90 LSD,5-speed
> http://people.mw.mediaone.net/sawcut64/home.html
>
http://www.twistedbits.net/WWWProfile/dakota/Mt5J8FaDfVCv6/
>
>
> ----- Original Message -----
> From: "Bernd D. Ratsch" <bernd@texas.net>
> To: <dakota-truck@BUFFNET.NET>
> Sent: Sunday, September 30, 2001 11:02 AM
> Subject: DML: RE: Now intake selection, was: rocker arm
> ratio and cams
>
>
> > Mark,
> >
> > You got the "turtle" in your 4BBL M1? If not, it's a
> really old trick
> > (just a simple cone design) that slips into the
> manifold and helps
> > restore the bottom performance as well...without a
> sacrifice on top-end.
> >
> > - Bernd
> >
> > -----Original Message-----
> > From: owner-dakota-truck@BUFFNET.NET
> > [mailto:owner-dakota-truck@BUFFNET.NET] On Behalf Of
> Mark Kuzia
> > Sent: Sunday, September 30, 2001 9:14 AM
> > To: dakota-truck@BUFFNET.NET
> > Subject: DML: Now intake selection, was: rocker arm
> ratio and cams
> >
> >
> > Whatever you do, get the 2bbl MPI intake, not the 4bbl
> MPI. I have the
> > 4-bbl intake and it makes incredible top end power, but
> at the sacrifice
> > of low end torque. Back when I bought it in December
> 1999, it was the
> > only one available, but now you have a choice. Another
> interesting note
> > was that the engine makes peak HP at 5400 rpm but was
> still making power
> > at engine cut-off. The bad thing is that the cam makes
> power from
> > 3000-5400 rpm, a mis-match is what I suspect with the
> two because the
> > intake wanted to rev, and the cam wanted to quit. I
> plan to either
> > switch to a 2-bbl MPI or finish building my stroker
> 406, which would be
> > perfect for the airflow of the intake. If I had a 406,
> I feel it would
> > work perfectly, but after experiencing the torque of
> Sam's motor, I
> > would rather have the torque.
> >
> > For dyno results, go to:
> > http://people.mw.mediaone.net/flyboy01/main.html
> > and click on "TECHNICAL"
> >
> > Mark Kuzia
> >
>
>
>
=====
Sam '00 RT
(14.667@93 mph)
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