thanks for the help....so obviously bolting up a 4 barrel intake, would
givce way to buying a matching TB??? Can anyone out there rate the
stock R/T Intake on a scale of good to bad as far as performance on the
track goes???? After the B&F TB order. I am kinda sittin around
thinking of what should go on next. I am staying out of the
supercharger stuff. I want completely Mopar Performance parts to make
'er run sweet... My first goal is to push the engine to 300 ponies and
get that low end torque up there to match... It is safe to say i have a
500 lbs weight disadvantage to those 4Duh LX models at the track....
Just about every 4Duh in O-Town runs 14.5 or lower.... My next gaol is
to figure out how to hit that 420 pony mark the SR-71 has. CAn anyone
rate our rear ends as far as handling the torque???? I think the stock
is an 8.25 inch rear end???? After last weeks track runs. I have
become very nervous about busting the rear end or drive shaft...
Several cars didn't even't make it off the line...
> -----Original Message-----
> From: Jon Steiger [SMTP:stei0302@cs.fredonia.edu]
> Sent: Saturday, February 13, 1999 3:13 AM
> To: dakota-truck@buffnet.net
> Subject: Re: DML: Engine Help
>
> I haven't seen a response to your post (I may have missed it)
> but I think I can answer at least some of your questions... If I
> screw up hopefully someone will correct me. :-)
>
> At 10:33 AM 2/11/99 -0500, you wrote:
> >I have engine questions.... Can anyone give me a good background on
> the
> >cam used in the R/T models???? I heard the Dakota R/T cam is nothing
> >special???? I was thinking about one day going the cam route if and
> >only if the R/T Dakota cam was not up to racing par. Next question,
> yep
>
> Yep, I've heard the same as well. As far as I know, the 360 in the
> R/T is just a garden variety 360 (same as you would get in a Ram) so
> you
> would definitely get some benefit from a cam change.
>
>
> >you guessed it Bone head question. What the heck is an Single plane
> >Intake Manifold???? Am I correct here, is it the thingy under
> neither
> >the TB that divides the air for each cylinder???? But what does
> single
> >vs. dual plane mean????
>
> There are basically 2 kinds of intake manifolds (there are exotic
> exceptions); single plane and dual plane. The area under the throttle
> body or carb is called the plenum, which is where the intake runners
> (which run to the valves) get their air (or air and fuel in a
> carbeurated
> engine). On a single plane manifold, the plenum is "open" such that
> all of
> the intake runners feed off of this common plenum. In a dual plane,
> the plenum is divided into two, so half of the intake runners feed
> from one half of the plenum and the other runners feed off the other
> half. The generally accepted theory is that a single plane is
> better for high rpm horsepower at the expense of low rpm torque,
> whereas a dual plane is better for low rpm torque at the expense of
> high
> rpm horsepower. This isn't always the case though. Intake design is
> sort've a black magic; you don't *really* know what is going to
> happen until you actually bolt the stupid thing onto the engine.
>
>
> > And is it true to say Single Plane 4 Barrel
> >Intake????
>
> Sure, that's one type of intake. (The M1 and MPI intakes are this
> type.) The "X barrel" part of the intake is just referring to the
> size of the opening where the carb or throttle body sits. A 4
> barrel intake accepts a 4 barrel carb or TB. The stock intakes
> on our Magnum engines are 2 barrel dual plane.
>
> [...]
> > Oh is
> >there a really kool manual for the Magnum engines. One that shows
> how
> >to service, modify, change, replace, install, and just about build
> your
> >on???? As I begin to work on the engine, I would like to have a
> manual
> >with pictures and text telling me how the engine is put together from
> >the ground up.... Oh and what is that Mopar Performance Book all
> >about????
>
> Yep, about the best you can do is to get a factory service manual
> and the new Magnum Engines book from Mopar Performance. (I can't
> find the part number, but I'm sure someone else on the list knows
> it, or you could look it up in the MP catalog.) Personally, I'm
> a little dissapointed with the magnum engines book; I expected more,
> but its better than nothing. I think the Mopar Performance book
> you're
> referring to is probably the Mopar Performance catalog. You can get a
>
> copy at any Dodge dealer for $5. Or its included if you join the
> "Mopar
> Performance Race Team" for about $18/year.
>
>
> -Jon-
>
> .--- stei0302@cs.fredonia.edu ------------------------------------.
> | Affiliations: DoD, EAA, MP Race Team, NMA, SPA, USUA. RP-SEL |
> | '96 Dodge Dakota v8 SLT CC (14.58@93.55), '96 Kolb FireFly 447 |
> `----------------------- http://www.cs.fredonia.edu/~stei0302/ ---'
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