Chris, I would disagree, since it was Bruce that had a 4.7 dyno to see the
difference between the 5.9 and the 4.7.
What DaimlerChrysler described with the manufacture 4.7-dyno pictures was an
inaccurate. They were close on the dyno, given the 5.9 had little more
torque than the 4.7.
Dyno figures are more accurate than manufacture specs when applied here.
However, not sell the 5.9 short, it has more room for mods than the 4.7.
The cam profile was designed for bottom torque than the 4.7, which was
across the whole RPM spectrum.
Even the 5.7 hemi, was designed for bottom torque (around 1-2K RPM) but will
hold the peak until 5K range. You are right on this one, this engine will be
a good hauler engine.
--------------------------------------
Steven St.Laurent
C4i System Engineer
C4i Engineering Branch, PSD, MCTSSA
MARCORSYSCOM, U.S. Marine Corps
Office (760) 725-2506 (DSN Prefix: 365)
"Never be content with somebody else definition
of you. Instead, define yourself by your own beliefs,
your own truths, your own understanding of who
you are. Never be content until you are happy with
the unique person GOD has created you to be."
-----Original Message-----
From: Chris Currie [mailto:ccurrie@src.net]
Sent: Monday, April 29, 2002 7:09 AM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: RE: Re: Re: DaimlerChrysler 4.7 Engine Sludge Problems
It's 800 RPM's difference between the two. 2002 Ram Brochure, Dimensions and
Specifications page:
4.7 litre (287 CID) V8 240 bhp @ 4800 RPM 300 lb-ft torque @ 3200
5.9 litre (360 CID) V8 245 bhp @ 4000 RPM 335 lb-ft torque @ 3200
5.9 has 5 more bhp, and 35 lb-ft torque. 800 RPM's difference when it comes
to bhp, and same RPM's on lb-ft torque.
Chris Currie
Yeah, but did you look at where that power is made? The 5.9 makes it's
horsepower and torque at lower rpms than the 4.7 and in my opinion is better
suited to the Ram. And the 5.9 makes 10 more horsepower (245 vs 235) and 40
more lb-ft of torque (335 vs 295).
I love my 4.7 but I owned a Ram and would never put in a Ram. Too much
weight for a motor better left to lighter (Dakota) sized trucks.
Bill White - http://www.moparforme.com
2002 QC 4x4, SLT+, 4.7, 5 spd, 3.92's, Airaid, MBRP Super Single, Exhaust,
Hurst T-Handle, BFG A/T's, IAS Shocks, 180 t-stat
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