I'm not so sure that will solve all your problems, Jay. There's more to it
than just exhaust. If the engine is as restricted as you say it is (and I
tend to agree with you) then just freeing up exhaust, especially with
headers and/or high flow cats, will just further deteriorate the scavenging
effect causing less available power rather than more. I think you're going
to need TB, head work, valves, maybe a little beefier cam, then the headers.
Ron
00 PB SLT QC 4X2 5.9 46RE 3.92 LSD
For modifications see my DML Profile (URL follows)
http://www.twistedbits.net/WWWProfile/dakota/Kw9pV1EkFeOYY
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net]On Behalf Of Woodruff, Jason P
Sent: Friday, February 23, 2001 11:21 AM
To: DML (E-mail)
Subject: Re: DML: 4.7 liter performance (bad andy)
My opinion differs here. I think the 4.7L is choked all through the air
flow system. Especially the 3 cat models ('00 cali and all '01's). Steve's
research came up with the answers of more air more, air and more air to get
more performance out of the 4.7. The reason changing out the exhaust has
little effect is it's still choked up at the headers, Y-pipe and cats. Even
changing the headers won't cure this, but it helps. I bet you'll see huge
gains when replacing the final pieces of the exhaust system.
Jay W
4.7L Auto Sport+ C.C. 2wd Black
Mods Profile page at
http://www.twistedbits.net/WWWProfile/dakota/Re5X8z5la@Ix2/profile.htm
>Date: Fri, 23 Feb 2001 07:22:07 EST
>From: Y2KDakuda@aol.com
>Subject: DML: 4.7 liter performance (bad andy)
>
>HP incresses are little with exhaust on the 4.7. your looking at 4 or 5
RWHP and the headers are >only putting out 7 or 8 RWHP. Everyone that I have
talked to said that the 4.7 flows so well its >hard to get HP out of the
Exaust...
>-------------------------------------------------
>Chris Lambert
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