Sure, it's the cam. No getting around that. The 1.7s give you more
lift, not duration. The drop off isn't as abrupt as with the stock 1.6
ratio, but is still there just higher in the rpm band. Also, with the
M1 4bbl.. you get a kick in the pants at 3000 rpm (1.7s), then ANOTHER
shove as you hit 3500 rpm (4bbl M1)... I'm going with a cam that will
take those two 'hits', and put them closer together, and give higher rpm
HP without sacrificing low end drivability (and not piss off the
computer in the process!)
Loving the power!
Sam
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net] On Behalf Of
Anthony_Gonatas@ars.aon.com
Sent: Friday, December 07, 2001 6:20 AM
To: dakota-truck@buffnet.net
Subject: Re: DML: RE: RE: Stainless Steel Roller Rocker Question
Sam,
Are you saying even with the M1 4bbl your engine still drops off
around
5000 rpm's? Maybe it's due to the cam, if I'm reading your post
correctly.
"Sam Parthemer" <srp@home.com> on 12/06/2001 07:34:01 PM
Please respond to dakota-truck@buffnet.net
To: dakota-truck@buffnet.net
cc: (bcc: Anthony Gonatas/KS/ARS/US/AON)
Subject: DML: RE: RE: Stainless Steel Roller Rocker Question
I run the M1 4bbl now, and feel that the engine pulls stronger, and has
the same drop off around 5000 rpm now (perfect for me , as I shift at
5300)...
Sam
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net] On Behalf Of George S Willhite
Sent: Thursday, December 06, 2001 10:24 AM
To: dakota-truck@buffnet.net
Subject: DML: RE: Stainless Steel Roller Rocker Question
I wonder how much of that tapering off at 4600 rpms
is due to the stock manifold...I have (and love) my MPI
4 barrel. ;)
Thanks Sam
GS -
>>>>>>>>>>>>>>>
>For applications below 5500 rpm (most), you are fine with stock
springs/keepers.
Power on 1.7s with stock cam comes on at 3000 rpm, and tappers off at
4600 rpm. The problem with people bending valves, and other problems
were due to improper installation. I have put 28k miles on my set,
with daily shifts to 5300 rpm (PCM)... Sold dozens of sets.
Call me for lowest prices.
Sam Parthemer
(619) 723-8679<
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