Required for high powered vehicle
dynamometer testing with limited contact area.
Used for decreasing the amount of unnatural down force required for
traction on dyne systems (as is the case with knurled drive rollers and high hp
Used to decrease the percentage of tire creepage and slippage during
Empirically derived optimal ratio of "slot vs. surface area"
ratio for optimal traction and longest roller life. Factory Pro actively
protects this patent.
The patent essentially covers adding (welding) or subtracting
(milling, slotting or drilling) roller surface material to improve
traction or lower effective spinning inertial mass. It does not cover a
simple "knurled" driver roller surface, as is allowed on other dyne
This patent covers adjustable ignition
timing devices (rotor or plate, for example).
Current motorcycle / automotive
internal combustion engine ignition timing is based on a "fixed",
non-adjustable "ignition triggering" device, commonly / usually a coil
and a ferrous trigger. Current systems to change the initial
"trigger" timing, are either a replacement "fixed offset" triggering
rotor or a user selectable, "adjustable ignition advancer" (actually
adjusts + or -). The problem with the "fixed" units is that the tuner is
prevented for finding the individual engine's best ignition timing
settings. The problem with current "adjustable ignition advancers"
(example) , is that they all feature multiple exposed screws that
can loosen and fall into the engine's crankcase and that the "amount" of
"advance" or "retard" must be set by "eyeballing" slots, with a usual 2
degree resolution, timing errors are compounded by parallax error.
This patent method improves current
methods by eliminating both parallax induced timing errors and also
eliminates the problem of exposed screws added to the internal areas of
This improved method features a
single, captive "indexing screw".
To select, in 1 degree increments
(+/- 1/8 degree) increments. Simply unbolt the rotor assembly, lift the
2 rotor plates apart, move the captive "index screw" to the new setting
screw hole (to select new timing desired) and replace the top rotor
It is impossible to lose any small
parts, or have parallax errors in ignition timing. A far superior
This patent covers any "vernier" or
"alternate mounting holes" for different timing" arrangement.
This patent provides easily tuneable,
improved fuel atomization fuel delivery in an MC type carburetor.
Improved fuel atomization results in improved power, performance,
improved mileage and reduced vehicle emissions (as tested with Factory
Pro's integrated 4 gas EGA).
Engine tuners are constantly trying to improve the delivered fuel
state for the above mentioned reasons.
Current improved efforts involved using a hollow tube (Yoshimura
MJN) with cross drilled holes in a "CV type" carb (example).
While that implementation did indeed tend to atomize fuel as
well as or slightly better than a traditional "needle" type
carburetor arrangement , it always resulted in the tuner being
unable to tune the low speed circuits for best part throttle
performance on every application (as you can't easily change the
hole location or size on a tube).
The second problem is that the system's series of micro holes up
the tube didn't allow the tuner, without redrilling (not realistic
or practical) the ability to tailor the optimal fuel delivery rates
for each rpm area.
A third problem with the "MJN" hollow needle is that the high
rpm "fuel delivery curve", from upper mid to high rpm is totally
dependent on the hole pattern and size of hole that the "MJN"
manufacturer decided what "right" for every bike.
The system doesn't work 100% as described and even some of the
concepts are incorrect - of which some might be the results of "cut
and paste" and some might be refinement issues.
We did some testing and research on an "MJN" equipped
Kawasaki ZX6r and found that we could actually improve power output
1%, 2% and even 3% by improving the atomization of the "MJN's" fuel
delivery - but were unable to correct the incorrect the poor high
rpm fuel delivery curve without starting with a completely blank
The "HDJ" system addresses all of the negative "MJN" issues and
retains the positive feature.
The "HDJ" system provides a ring of super micro orifices that
are located AROUND the "needle jet", providing very highly atomized
fuel, improving power, response, mileage and decreasing vehicle
The HDJ system retains a traditional "tapered needle" and adds
an additional circuit, fuel atomizing holes, allowing:
Needle Base diameter is still used to change low rpm
cruise and full throttle / low rpm tuning.
Float height still is used to adjust low rpm operation
Needle Height still changes the full throttle midrange fuel
Main jet still affects the full throttle / high rpm without
greatly affecting low and mid rpms.
Main Air Jet (MAJ) air correction circuit is still
used to optimize the fuel delivery curve at high rpm.
Most all of the "MJN" liabilities were addressed by moving
fuel delivery holes from the "needle" to the "needle jet".
A motorcycle engine cover bumper device (10) includes a road
engagement member (12) joined to an outer wall (16) of a motorcycle
engine cover (18) such that the road engagement member (12) engages
a road surface before the motorcycle engine cover (18) thereby
preventing damage to the cover when...
A method for maximizing internal combustion engine horsepower for a
preselected RPM range, said method comprising the steps of: providing a
plurality of individual
velocity stacks for an air box portion of the internal
combustion engine; providing means for removably and independently securing
said individual velocity stacks to the air box portion while the air box
portion is secured to the internal combustion engine, said securing means
being deformable to prevent air leakage and to promote quick replacement of
said individual velocity stacks;
We use a variety of proven drills and training techniques.
Practicing these techniques with our Yamaha dirt track trainers will
enhance your abilities both on the track or the street.
It doesn't matter what you ride or race, the Rich Oliver Mystery School
improves everyone's skill level and mindset!
WW2 vintage flying Special
Book a sightseeing flight over the Wine Country
or a Kamikaze aerobatic flight or a biplane flight over famous
the Golden Gate Bridge and the San Francisco Bay for one or two during
the spring and get a free souvenir t shirt!
(NEW! Ask about the P-40 flights!)
707 938 2444
Just tell them that you
saw this on the Factory Pro website!
Northern California's most unforgettable flying experience. No
experience required. Open weekends!
The extension of the laboratory
for engines of the Swiss Federal Institute of Technology was completed
in about 1935. Its architect was Rudolf Otto Salvisberg (1882-1940).
He had a successful career in Berlin but returned to Switzerland after
the advent of the Nazis. His architectural style was somewhat similar
to that of Erich Mendelsohn. The staircase of the laboratory is in normal
use but well preserved.
Edited to the tunes of Chemical Residue by Herbie Hancock.