I believe the R/T has a 9.25 rear end.
Chad
Jason Jennings wrote:
>
> 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/ ---'
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:12:35 EDT