to download the Demo version ( 2.xx std. version only demo ).
Linear encoder indicator option now included in the 199/249 Euro versions of the Program.
0.01 to 0.001 mm / equivalent " decimal resolutions supported.
Use an expensive Ono Sokki or go with a cheap "china" cnc style encoder.
Slight improvements when designing in Inches. ver. x.xx.03.
Ver. 2.00.1 1/2-2020
Now with 0.1 and 0.5 degree stepped resolutions on the designed Cams
Lift Data in the PRO version.
Ability to show comparison Cam shape (Lift, Velocity, Accelleration and
Jerk) on the Design Page.
Plus a number of other small improvements.
Increment step size adjustable, View comparison Cams on valvespring
Save comparison Cams as well as design Cam for EngMod4T.
Piston movement Page is working now.
Improvements on Compare Curves Page.
Rocker ratio influence on max. velocity line
in Design page implemented, Valve spring page better explained and step
Can draw Roller Cam shape.
Able to use
Comparison Cam 1 data to display overlayed Cam shape to visualize what
the new Basecircle must be to create the new profile.
Cam shape drawing now correct.
Load .cam files error fixed.
Duration calc error with Inch setting fixed.
Click to download the Pdf instructions.
Full version for 99.- € EURO :
Pro version with
0.1 degree resolution 149.- € EURO :
Version that includes the Cam measuring machine controls and schematics
for it etc.
costs 199.- € EURO :
Pro version that includes the Cam measuring machine controls and
for it etc.
costs 249.- € EURO :
order, the Software will be compiled with your Company name on the
download link will be mailed to the email address you have
used to order.
There are 12 months of free updates included.
You can also mail us for an upgrade price if your purchase is older than 12 months
or you want to expand your existing version to Pro :
program is able to work in both mm and inches.
Splines to generate the Valve lift curve, with this approach it is
measured Cam lift curve and then modify it or make new Cam design from
limited as the more common Polynomial curve approach and with Splines
design an asymmetric lift profile. With the adjustable 2 stage
function it’s also easy to get
low Jerk values without compromising the lift
Design Page with comparison cam shown in grey:
Zoomed in on the top of the accelleration curve, shows the difference
in 1 and 0.1 degree resolution:
Design Report Page:
Flat tappet with design Cam shown inside the old Cam with larger
Roller Cam shape shown :
Duration etc. Calc for up to 4 Cams:
Change the centerline and calculate
directly the changes in opening, closing degrees, lift
at TDC and eg. 10 deg. before/after TDC etc.
Compare Curves for up to 4 Cams at the same time:
Comparison Cam nr. 1 ( 2 and 3 ):
This Page takes its input from the lift
mm/inch with 0.1, 1 ,2, 4 or 5 degree steps data in the left Window.
For Hand measured Cams there is the
to smooth the generated lift-velocity-accelleration and jerk data.
Piston movement Page:
Visualize Valve behavior during the
Cam report Page:
Generates Cam report
and/or a Cam Card with specs.
Static Valve Spring Force Calculating Page:
Fast Fourier Tranformation analysis:
Page, only active in the 199.- and 249.- Euro version:
With Interface to the Cam measuring machine
A complete reference to parts needed
from eg. Ebay is supplied, as well as full schematics
to the wiring and firmware for the Arduino Uno board that controls the
Steppermotor/Driver and the
Excluding the Mitutoyo indicator and its SPC cable, the price of parts
from Ebay adds up
to just under 400 $ (December 2014)..
July 2020, Linear encoder indicator option included.
An example of a Cam measuring Machine made from the referenced parts (
+ an aluminium
profile cut and milled, not supplied ) :
An example of what we have done with
this program even in its early stages in 2013:
Dyno comparison of a HRC cbr600
exhaust cam (blue) and the improved version we made (red).
If you compare it to the picture below with an older comparison on a
similarly prepared engine of the same hrc exhaust cam and
the commonly used in SuperSport WC 1270 grind from England, its clear
that the 6 deg longer duration of the 1270 grind lifts
topend power but causes powerloss from the midrange and down, still
this was preferred by many teams just to get a single hp
more from 12.000 up.
Our approach was to increase the duration only 4 degrees and use an
assymetric lift curve with same closing flank as Hrc
but a slightly more aggresive opening flank (the 1270 actually had
milder flanks since it probably was only a stretced out Hrc
profile not a completely redesigned profile).
Dyno comparison of an HRC cbr600
exhaust cam (red) and a 1270 UK grind (green).