Duner in PHX runs a 4.7 CC, and it beats my RT at the track under the right
conditions, with little or no mods. It's a 5 speed which appears to help
out a lot compared to autos that I've seen run. (4.7) You'll be able to dig
into the 4.7 soon, but the stuff is available now for the 5.2L/5.9L.
Sam '00 RT
> -----Original Message-----
> From: owner-dakota-truck@buffnet.net
> [mailto:owner-dakota-truck@buffnet.net]On Behalf Of Kyle Kozubal
> Sent: Monday, June 11, 2001 12:34 PM
> To: dakota-truck@buffnet.net
> Subject: DML: Re: RE: 5.2L/4.7L HP/TQ
>
>
> > As figured from the RT, usually 18-20% loss through the drivetrain, with
> an
> > auto. NV3500 runs approx 15%. So a 96/97 5.2L at 230 & 295 ft lbs. =
> > 180-185 hp, and 236-250 ft lbs. My '95 SLT 5 speed did
> > 180 stock (220 hp x .82 = 180.4)...Finally got it up 220 hp at the rear
> > wheels, and 325 ft lbs. (220 / .82 = Hp at Fly wheel or
> 268-270 hp). My
> RT
> > currently is running 240 rwhp & 345 ft lbs., or 240 / .80 =
> ~300 hp & 431
> ft
> > lbs.
> >
> > Figures for the 4.7 with newer tranmission will be similar to the 5.2L,
> + -
> > 5-6 hp.
>
> Thanks for the info. From what I have read and seen, the 5.2L V8 just
> responds very well to various modifications and will yeild some impressive
> gains without having to go internal; modded TB, headers, intake
> kit/K&N open
> element, free flowing exhaust, etc. Maybe this is due to the fact though
> that the 4.7L V8 is rather new and companies are having hard
> times creating
> and implementing worthwhile modifications. I mean, from what I
> have seen the
> headers shouldnt even be touched and they exhaust system is rather decent
> also, so this really leaves just adding a TB and a cold ait intake setup,
> right? It just seems by adding some rather minor
> parts(performance-wise) to
> the 318 that the hp/torque figures rise rather nicely. Plus for
> maintenance
> is overall user friendly-ness, the 5.2L is nicer to work on. Of
> course then
> also, the 4.7L does need dist cap/rotor maintenance and the plugs
> are setup
> to run for 100,000 miles, but I am still a die hard 'old school' Magnum
> engine guy and dont mind changing things like plugs/wires/dist
> caps/rotors.
> Still waiting for someone to convince me to buy a truck with the
> 4.7L V8 in
> it..........anyone? Are there any towing/payload differences between these
> two engines?
> Kyle
> 93 Dakota 4x4 V6
>
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