WEB-CAM
has been hard welding and grinding cams since 1945. With their knowledge, and long time involvement with the racing industry WEB-CAM has
proven to be the best.
The
nickel based hard facing alloys are homogeneous materials containing complex
microscopic bi- and tri-metallics. These weld
overlays greatly enhance the erosion and abrasion resistance of the hard welded
parts. In addition, they offer very high thermal fatigue resistance.
During
the welding process a metallurgical bond is achieved
with the substrate. The overlay’s natural lubricity and their resistance to
galling coupled with low RMS finishes mean less wear on both the cams and your
mating surfaces.
WEB-CAM
is constantly designing new profiles for new applications, so if you want up to
the minute information please don't hesitate to call us directly, we are here
to help you.
Our
web site lists our most popular products and services. Many of our products
have helped racers win national championships and set national and world
records. The top professionals have put their trust in WEB-CAM constant
research and development program that includes race track
and dyno testing.
Whether
you choose a cam for normal off-road or racing, you can be certain the same
attention to detail is given to all applications.
The
entire crew at WEB-CAM has a dedication to top quality workmanship and reflects
the owners dedication to quality, performance and
innovation.
GLOSSARY AND CAM TUNING
INFORMATION:
1. Max Lift
or Nose
2. Flank
3. Opening
Clearance Ramp
4. Closing
Clearance Ramp
5. Base Circle
6. Exhaust
Opening Timing Figure
7. Exhaust Closing Timing Figure
8. Intake
Opening Timing Figure
9. Intake Closing Timing Figure
10. Lobe Separaion
VARYING
LOBE SEPARATION ANGLE |
|
Tighten |
Widen |
Moves Torque to Lower RPM |
Raise Torque to Higher RPM |
Increases
Maximum Torque |
Reduces
Maximum Torque |
Narrow Powerband |
Broadens Power Band |
Builds Higher Cylinder Pressure |
Reduce Maximum Cylinder Pressure |
Increase Chance of Engine Knock |
Decrease Chance of Engine Knock |
Increase Cranking Compression |
Decrease Cranking Compression |
Increase Effective Compression |
Decrease Effective Compression |
Idle Vacuum is Reduced |
Idle Vacuum is Increased |
Idle Quality Suffers |
Idle Quality Improves |
Open Valve-Overlap Increases |
Open Valve-Overlap Decreases |
Closed
Valve-Overlap Increases |
Closed
Valve-Overlap Decreases |
Natural EGR Effect Increases |
Natural EGR Effect is Reduced |
Decreases Piston-to-Valve Clearance |
Increases Piston-to-Valve Clearance |
LOBE
SEPARATION ANGLE |
Above 114
Deg. = Extremely Wide |
114-112
Deg. = Wide |
112-110
Deg. = Moderately Wide |
110-108
Deg. = Moderate |
108-106
Deg. = Moderately Tight |
106-104
Deg. = Tight |
Below 104
Deg. = Extremely Tight |
ADVANCING
/ RETARDING CAM TIMING |
|
ADVANCING |
RETARDING |
Begins Intake Event Sooner |
Delays Intake Event Closes Intake |
Open Intake
Valve Sooner |
Keeps Intake Valve Open Later |
Builds More Low-End Torque |
Builds More High-End Power |
Decrease Piston-Intake
Valve Clearance |
Increase Piston-Intake Valve Clearance |
Increase
Piston-Exhaust Valve Clearance |
Decrease
Piston-Exhaust Valve Clearance |