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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