Change out the PCM or add a Jet Chip and you will have the same results.
This engine was designed for a flatter curve and to utilized the torque
across the RPM Spectrum.
-------------------------------------------
Steven St.Laurent
Test Engineer
Test Branch, GSD, MCTSSA
MARCORSYSCOM, USMC
760-725-2506 (DSN 365-2506)
Work:mailto:stlaurents@mctssa.usmc.mil
Home:mailto:saint1958@home.com
-----Original Message-----
From: Will Coughlin [mailto:willcoughlin@hotmail.com]
Sent: Wednesday, December 20, 2000 8:27 AM
To: dakota-truck@buffnet.net
Subject: Re: DML: 4.7 Dyno Run - Matt
I think if you see a dyno sheet and the tq/hp lines never cross,it is not
really accurate.If it is measured correctly,the tq/hp lines will ALWAYS
cross each other at 5250 rpm.I have seen this printed and spoken by engine
builders and dyno test engineers.Just something to keep in mind,I could be
wrong about this,just like anything else,but I am pretty sure about it.TTYL,
Will Coughlin willcoughlin@hotmail.com
'00 reg.cab,2wd,4.7L/hd5-spd/3.92sg(9.25")
http://www.geocities.com/willcoughlin/index.html
----Original Message Follows----
From: Stlaurent Mr Steven <STLAURENTS@mctssa.usmc.mil>
Reply-To: dakota-truck@buffnet.net
To: "'dakota-truck@buffnet.net'" <dakota-truck@buffnet.net>
Subject: DML: 4.7 Dyno Run - Matt
Date: Wed, 20 Dec 2000 07:00:43 -0800
Matt, I have noticed on your dyno sheets and now mine, we share a torque
line through out the RPM range and beneath it the horsepower never seem to
cross at any point. These two lines never seem to intersect from the
beginning to the end. Something I haven't seen before on the 5.2 and 5.9.
Yahoo! You can gun the motor and have that available torque at any RPM
range. The engine designer was right on the 4.7.
Also I have noticed with all the 4.7 dyno runs, there is a slight dip on
both the HP/TQ line at 2700 through 3000 RPM. I need to have Bruce figure
what is going on or contact Mike (Chrysler engineer) for answer.
After this the next item to tinker with is that nylon intake. I will need
to purchase one from Chrysler and see what can be done.
-------------------------------------------
Steven St.Laurent
Test Engineer
Test Branch, GSD, MCTSSA
MARCORSYSCOM, USMC
760-725-2506 (DSN 365-2506)
Work:mailto:stlaurents@mctssa.usmc.mil
Home:mailto:saint1958@home.com
-----Original Message-----
From: WMBARRET@aol.com [mailto:WMBARRET@aol.com]
Sent: Wednesday, December 20, 2000 5:08 AM
To: dakota-truck@buffnet.net
Subject: Re: DML: AHHH!,I finally got on my truck a little!
WILL !!!, Come on man, you did'nt even get into the power at 3900, bring
that
thing up to 4900, hold on tight !! ;) Put it this way, I've dumped the
clutch a many a time with slicks at 3500 !!, yea, it did finally break, but
after 130+ times, bawa haa haa.
The 4.7 will pull over 200 rwhp from 4000 to 5000. Believe me, you ain't
gonna hurt it, no way.
Mine has seen 4500 rpms everyday for the past year!
Matt Y2K-HEMI
'00 RC 4.7L 5 spd
14.23 @ 94.49
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