You're making me 2nd guess some of my projects. Cut it out!
From the day I saw my Sport Fury on Ebay, I was prepared to swap in a big
block. Because I began messing with cars in my teens - when I had a lot of
ambition & very little money - putting in a big block meant building a big
block. As I stand at the midway point of my 426wedge build, with a zillion
parts & calculations staring me in the face, still trying to make a
decision on connecting rods, I wonder why I placed myself in this
mess(sound familiar, people?).
So, I hop into my polyFury & crank it up. Ten miles down the highway, the
temperature needle is jumping. I pull into the nearest gas station, pop
open the hood & watch the steam pour out. What a depressing smell! Then I
see something I've never seen; a hole in the top of the water pump
housing. It looks like someone struck an arc, then drove a welding rod
through the casing. Perfect.
Longer story shortened, I towed the car to my shop believing that the next
time I drive it, it'll be with the 426w. Then, you publish those dyno
numbers. Not just respectable numbers, mind you, @#$%^ awesome
performance!
Anybody else living my life, right now? LMAO
Well done, Gary!
Mike
--- On Fri, 6/13/08, Gary Pavlovich <glpavlovich@xxxxxxx> wrote:
From: Gary Pavlovich <glpavlovich@xxxxxxx>
Subject: Poly Stroker dyno test today
To: 318poly@xxxxxxxxxxxxxxx, 1962to1965mopars@xxxxxxxxxx
Received: Friday, June 13, 2008, 10:51 PM
Just thought I would let the group know about the latest
Poly Stroker (actually 396 cid) with my favorite 4"
crank that I built and dyno'd for a customer today.
I used a "small cam" and experimented with two
radically different carbs after the engine break-in. The
results surprised me so I thought some of you would find it
interesting; parameters are as follows.
My customer has a '66 Charger with high rear end gears
(numerically low), 727 automatic, and wanted a mid-level
Stroker build more for cruising & reliability than
perfomance. He wanted a mild idle, cast iron dual plane
Poly intake, and all power in before 5000rpm (remember its
a street cruiser).
We made 441Torque @ 3500rpm
357HP @ 5000rpm
with a 750 double-pumper Holley on a stock OEM cast iron
Poly intake w/ four-hole adapter and [email protected]" lift
Hydraulic cam (280/.480" advertised).
Next pull with my "experiment" carb netted
440Torque @ 3500rpm
357HP @ 5100rpm
with my 500cfm Edelbrock AFB; one of the two dual quad
carbs destined for my next Poly Stroker build.
The Poly achieved 98.6% volumetric efficiency and used
501cfm with the Edelbrock carb and achieved 99.8%
volumetric efficiency and used 497cfm with the 750Holley
double-pumper carb.
Air/Fuel ratio on each carb was perfect and near identical.
I was surprised to see how well the small 500cfm Edelbrock
did on a near 400cubic inch motor. The butterfly
shaft/choke and "stuff" was removed from the
Edelbrock for improved flow.
Now mind you, this is just an engine dyno and the smaller
carb would probably react differently on the street.
FYI,
Gary Pavlovich
[Non-text portions of this message have been removed]
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----
Please address private mail -- mail of interest to only one person --
directly to that person. I.e., send parts/car transactions and
negotiations as well as other personal messages only to the intended
recipient, not to the Clubhouse public address. This practice will protect
your privacy, reduce the total volume of mail and fine tune the content
signal to Mopar topic. Thanks!
'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html.
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