Hey Rich,
I know that you know a lot about engines so don't think I'm trying to say
otherwise. When people customize their camshaft, they generally listen to a
lot of hype about high lift, high duration, overlap, etc. The principles
behind the 4-stroke engine are varied and numerous but they all come down to
the basics. The more radical you make your cam the less efficient your
engine is on the low end. There is an excellent article written by Dema
Elgin (yes, he makes cams) but don't read it because he's trying to sell you
a cam, read it because he gives an extremely good overview and beyond of
4-stroke engines and why they run like they run. I've read his article many
times and each time I figure out something I didn't know before. A lot of
what he says probably applies in your case. I don't know if any of this
will help you solve your problem but it may help you to see what it is. The
link is: http://www.elgincams.com/campaper.html
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 Wisotzkey, Rich
Sent: Saturday, June 02, 2001 8:35 AM
To: 'dakota-truck@buffnet.net'
Subject: DML: RE: RE: Vacuum Help Please
Ron,
I installed a rather large cam. That's what is pulling it down.
Rich
-----Original Message-----
From: Ronald Wong [mailto:ron-wong@home.com]
Sent: Saturday, June 02, 2001 11:06 AM
To: dakota-truck@buffnet.net
Subject: DML: RE: Vacuum Help Please
That doesn't sound right. Why would your vacuum change because of mods?
Sounds like you have a leak somewhere.
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 Wisotzkey, Rich
Sent: Friday, June 01, 2001 7:43 PM
To: 'dakota-truck@buffnet.net'
Subject: DML: Vacuum Help Please
Is anyone familiar with how to increase your engine vacuum? After my last
round of 318 engine mods, I discovered I'm only pulling 11-11.5in of vacuum
at idle. This doesn't work on the street. Any suggestions on what I can do
to bring it up?
Thanks,
Rich - Ashburn, VA
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