First the accuracy is a understatement when you realize the 295lb tq is more
like 3xx and the 235 is more like 255 range when converting to SAE after a
clean dyno run.
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net]On Behalf Of WMBARRET@aol.com
Sent: Wednesday, January 10, 2001 6:10 AM
To: dakota-truck@buffnet.net
Subject: Re: DML: RE: Mike Leach PCM program (and other 4.7 rants)
Crit, Those graphs on the DC web site are terrible, you can't go by those.
If
you'd like to see some real dyno graphs email me at
matt_barret@earthtech.com and I'd be glad to send you all the dyno graphs
and info that go along with each. Bottom Line is the Leach PCM gave me 8
RWHP, and 9 RWTQ (dynoJet). It does'nt ping, and I've seen no noticable
change in fuel economy.
Matt Y2K-HEMI
'00 RC 4.7L 5 spd
In a message dated Wed, 10 Jan 2001 12:48:30 AM Eastern Standard Time, Crit
Bennett <crit@engineer.com> writes:
<< Steven, what do you mean about having it resettled? The rev limiter can
be
bumped up or that the powerband is shifted? As far as Leach's unit goes, he
can change fuel maps, rev and speed limiter, and timing, correct? What are
the
impact to:
1.) Pinging (I know Will has no problems, but anyone else?)
2.) Power (what are the gains, and where)
3.) Fuel Economy (also, do you HAVE to run 93, or is it only if you play
with
the timing x no. of degrees?)
AND WHY THE HELL DOESN'T HE HAVE A WEBPAGE. Sorry, but I want to talk to
the
guy and don't have an outlet, so how about contact info instead - somebody?
Another thing that has irked me for a while has to do with Dodge's 4.7 Dyno
picto-makebelieve-graph. If you go to the website and check it out, the
torque
curve is very nonlinear, which looks like tuning for power and economy in
different rev bands, but it's really funky. Can anyone that's looked at a
real
4.7 torque (not hp) curve comment on Dodge's accuracy?
Also, does anyone know what's been said about the 4.7 H.O. changes, if
anything? I hate the idea of the newcomer 3.7 making only 20 horses less,
given the nearly-identical design and I want to make a H.O. when it happens.
Okay, (catching my breath) I think I'm done
Crit
-------------------------
Yes and including the rev limiter or you can have it resettled at a higher
RPM range.
-------------------------------------------
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: George S Willhite [mailto:gswillhite@ualr.edu]
Sent: Tuesday, January 09, 2001 3:21 PM
To: dakota-truck@buffnet.net
Subject: DML: Mike Leach PCM program was: TSB #18-023-00, Rev. A. Re: Crit
Matt, does the Mike Leach reprogram get rid of
the speed limiter? Is this for the 4.7s only? Cost?
Sorry for all the questions, but need to know.
Thanks
GS -
'98 5.2 5spd
>>
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