Yup...totally agree with Bob on the PreCats. They are not as
restrictive as some would think.
Two '01 R/T's, both with identical mods (nitrous as well), one with no
PreCats and the other with them in tact...1/10th difference in the 1/4
mile. (That's nothing)
...and the 4.7's do make power past 4500rpm.
- Bernd
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Bob Mankin
Sent: Sunday, April 27, 2003 9:08 PM
To: dakota-truck@dakota-truck.net
Subject: DML: RE: Re: Re: 206 cams?
I would hope that is a typo. Not likely the mapping for the 4.7L stops
at 4500 because the stock auto shifts higher than that. Probably other
reasons for the dive on the dyno sheets. That whole table mapping thing
got started based on some comments by Marty of KRC, but I'm fairly sure
the cutoff point is much higher than 4500 rpms.
The pre-cats things gets more play than it should as well. They are not
that restrictive. Bone stock R/Ts have been dyno'd many times and you
don't see any significant HP or torque loss between '00 models which
have no pre-cats and the '01+ models which do.
Bob
This archive was generated by hypermail 2b29 : Fri Feb 06 2004 - 11:46:13 EST