From: HOTROD74GremlinX
To: BaadAss73Gremlin
Sent: 11/29/2009 4:05:04
P.M. Eastern Standard Time
Subj: Fwd: New announcement: CAM CHOICE BY PAW
PERFORMANCE ----CATALOG
From: electrade@xxxxxxxxxxxxx
To: HOTROD74GremlinX@xxxxxxx
Sent:
11/29/2009 2:03:19 P.M. Eastern Standard Time
Subj: New announcement: CAM
CHOICE BY PAW PERFORMANCE ----CATALOG
If your thinking about a new cam for your AMC OR JEEP,
here is some thoughts from PAW
AMC V8
Click to
download the Cams & Valve Train section of the P.A.W. catalog
PAW
PERFORMANCE CAMSHAFTS
Only PAW PRO STOCK cams cover most conceivable
performance situations -- from oval and drag racing, to street performance,
to light-truck towing applications, to marine engines, to recreational
vehicles. Whether your goal is to boost low-end torque, increase fuel
economy or just flat-out embarrass the “other guy,” You’ have found the
ideal answer right here.
But first, a few tips…and some hard-and-fast
rules:
* Your new cam must operate within a total valve
train system. As a result, it is highly dependent on the parts with which it
is matched. Don’t lose sight of your performance objective by trying to save
a few dollars on other components.
* You must, always
replace the lifters when installing a new cam. Old lifters will quickly make
their mark (literally) on the lobes of your new cam, leading to degraded
performance and premature failure.
* Always use Cam
Assembly Lube And Camshaft Brake in oil ! You Must Pre-Lube Cam lobes and
lifter bottoms.
* You must properly adjust valves before
initial firing. Improperly adjusted Valves - Valves That are To Tight will
cause a cam lobes to go flat. Being to tight will not allow lifter to spin.
You must also use the use proper valve spring / retainer combination for a
new camshaft
* Be absolutely certain there is adequate
CLEARANCE between the valves and pistons after installing your new cam.
Failure to do so could lead to unhappy (and expensive) surprises. Also make
sure the valve springs DO NOT coil bind with the new cam.
*
The first few minutes of camshaft operation are crucial to the performance
and reliability of a new cam. DO NOT allow the engine to run UNDER 1500 rpm
for the first five minutes to one hour! This prevents spalling of critical
cam surfaces, ensuring exceptional service life.
Understanding PAW
PRO STOCK Cam Ranges
To help you select the perfect part, PAW PRO
STOCK cams are organized into five distinct performance categories, from
nearly stock (Range A) to oval track and bracket racing (Range E).The
descriptions that follow cover cam performance characteristics within each
PAW PRO STOCK range. (Please note: Durations shown are at 0.050-in. cam
lift.) Recommended engine/vehicle modifications are listed to help you
achieve your performance goals.
Range A Hydraulic: Up to 195 Degree
at .050 Duration
Smooth stock type idle. Good low end torque in 1600
- 2000 RPM range. Operating power range 1000 - 3200 RPM. Best fuel economy
cam with correct equipment. Good choice for heavy towing. Will work with
stock or slightly modified engine, stock automatic or manual transmission.
Compression 9.0 to 1 or less. Recommended spring pressure 95 lbs. for valve
on seat; 240 lbs for valve open. Stock axle ratio 3.50 to 1 and lower. Not
recommended for racing.
Range B Hydraulic: 195 Degree - 210 Degree at
.050 Duration
Good to fair idle quality. Good low end torque and
response in 1800 - 2600 RPM range. Good low end and mid-range power in 1500
- 4000 RPM operating range. Good fuel economy cam with correct equipment.
Good choice for light towing. Compression 9.5 to 1 or less. Will work with
stock or slightly modified engine, stock automatic or manual transmission.
Recommended spring pressure 105 lbs. for valve on seat; 265 lbs. for valve
open. Stock axle ratio 3.20 to 4.20 to 1 range. Not recommended for
racing.
Range C Hydraulic: 210-225 Degree at .050 Duration, Solid
Lifter Camshaft 220 - 235 Degree at .050 Duration
Fair idle quality
with lope. Good mid-range torque and response in 2400 - 3200 RPM range.
Operating power range 2000 - 4800 RPM. Good fuel economy cam with correct
equipment. Good choice for light towing. Compression 10.3 to 1 or less. Will
work with stock or slightly modified engine, stock automatic or manual
transmission. Recommended spring pressure 110 lbs. for valve on seat; 280
lbs. for valve open. Axle ratio 3.70 to 1 or higher is best. Recommended for
mild bracket racing.
Range D Hydraulic: 210-225 Degree at .050
Duration, Solid Lifter Camshaft 220 - 235 Degree at .050
Duration
Rough idle quality - (Note: Intake vacuum may be too low for
power brakes, etc.) Good mid range torque in 3000 - 4000 RPM range. Good
mid-range power operating range 2200 - 5400 RPM. Average fuel economy cam
not recommended for towing. Increased compression ratio best, 10.5 to 1 or
11.0 to 1. Some engine modification required. Use manual or automatic
transmission with high stall converter. Recommended spring pressure 120 lbs.
for valve on seat; 300 lbs. for valve open. Axle ratio at 3.90 to 4.50 to 1
is best. Recommended for limited oval track.
Range E Hydraulic:
240-255 Degree at .050 Duration, Solid Lifter Camshaft 250 - 265 Degree at
.050 Duration
Rough idle quality with heavy lope - (Note: Intake
vacuum will not operate power brakes, etc.) Good mid to high RPM torque in
3800-5000 range. Good high RPM power, operating range 3200 - 6500 RPM.
Average to poor fuel economy, definitely do not use for towing. Increased
compression ratio required 10.5 to 1 to 12.0 to 1. Competition engine
modifications required. Use only heavy duty manual or automatic (with high
stall converter) transmission. Recommended spring pressure 125 lbs. for
valve on seat; 325 lbs. for valve open. Axle ratio at 4.20 to 1 is best.
Competition headers and valve job recommended. Recommended for oval track or
bracket drag racing.
Valve Spring & Retainer Chart
4 items
found. Sort: [Price Low To High | Price High To Low | Item Name
| Item # ] Change View
Item
Code Item Name Price / Unit
ELG-E1224P AMC V8 HYD. Cam .473"/.497" Range C...(more
info) $86.95
ELG-E1226P AMC V8
HYD. Cam .497"/.520" Range C...(more info)
$86.95
PAW-21587 AMC V8 HYD. Cam .426"/.426"
Range B...(more info) $77.95
PAW-22912
AMC V8 HYD. Cam .448"/.472" Range B...(more info)
$77.95
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You can view the full announcement by
following this
link:
http://www.socalamc.com/forum/index.php?topic=730.0
Regards,
The
So Cal AMC
Team.
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