Bosch Motorsport Ignition Coils
These are the Bosch Motorsport Ignition
Coils that we use in our dual-plugged Turbo ORCA motors. We stock these
along with the specialzed connectors. ORCA motors use two 12mm
racing spark plugs per cylinder for bore sizes 4.000" to 4.375". We
trigger these with a Cosworth Pectel SQ6M ECU, programming four
separate spark maps, each with 25 x 25 sites, for a total of 2500
ignition points. In terms of keystrokes to enter this data...a bit shy
of 12,500 keystrokes. No one said this was going to be easy. We use
Champion 662 / A59C resistor racing spark plugs, which we also stock.
New Branch Ported S.T.D Dual Plug EVO Heads
These S.T.D. heads
are stronger than OEM Harley heads and are better suited for turbo use.
Stock heads are prone to cracking around the spark plug in turbo use.We
had Branch do a 99cc chamber and dual plug the heads. These are no
longer made and are very rare.
If you were to use them on a turbo they would require 20cc domes. We purchased the heads brand new for an 80" EVO Turbo project and had them ported by Branch O'Keefe. New Branch valve springs and valves were installed.
These are available for $1,435.00 with Free Shipping to the lower 48 states.
New RSR Wideband (Bosch LSU4.2/9) AFR Gauges
RSR Dual Air Fuel Gauges for the 18mm
LSU Wideband Sensors (20:1 to 10:1 AFR) are in production. IP67
billet enclosures these have our 10 L.E.D. interface that tells you at
a glance if your AFR is Stoichiometry (14.56:1) or peak power ratios of
13.5:1 or 12.5:1...and ratios of 11.5:1 or richer.
You cannot divert your attention to watch a digital gauge and try to read, or remember, spooling numbers. You need hysterisis at a target ratio that can be interpreted at a glance whether you are dodging cars, or going 200 mph. We just provide the AFR Gauge, not the Bosch Lambda sensors.
The white arrow indicates maximum torque and power. Easy to see at a glance at full throttle.
Left to right 10 L.E.Ds going from lean to rich: Five Green lights, Two Yellow lights, Two Orange lights and one Red light. These display the range 20.5:1 to 11.5:1The two Yellow lights L-R are 15.5:1 and 14.5:1 (Stoichiometry)
I was sleeping in Class
236hp and 328 hp Injectors
RB Racing Bosch High Impedance Injectors
rated at 236 hp or 328 hp at a duty cycle of 80%. Used in our
Harley Turbo Kits and in big inch motors. Direct insertion into stock
fuel rail/throttle body. Two or 3 Bar Map Sensors required with Delphi or aftermarket ECMs.
9.3 Gram Injectors (236 hp @80% Duty Cycle): Come with 20 gauge 22759/32 Mil-Spec Wiring Pigtails. $295.00 (pair). 03-1014. In stock shipping.
12.9 Gram Injectors (328 hp @ 80% Duty Cycle): Come with 20 gauge 22759/32 Mil-Spec Wiring Pigtails. $395.00 (pair). 03-1015. In stock shipping.
Real World Tuning Package...While you ride..Not on the Dyno
When you order a complete LSR 2-1 exhaust
with the RSR Dual Air Fuel Ratio Gauge and
The TTS MasterTune there is a $75.00 discount on the total price.
You can observe while you ride in the real world to evaluate
transitionals and wide open throttle. The RSR Dual Air Fuel Ratio Gauge
is waterproof and Harley-proof. It gives instantaneous visual
information that is available at a quick glance...No numbers, just
position and color reference (GGGYYYOORR), to tell you if your mixture
is correct. Invaluable for wide-open runs through the gears or
evaluating transitionals on your roll-ons.
The above chart gives the response times
of the 2009 and later 12mm Delphi Oxygen sensors. In actual dyno tuning
have to hold one "site", i.e. the intersect of load and rpm to get an
accurate feedback as the sensors are always "behind" due to their
response times. That's why you see Superflow engine dynos doing step
testing so things can stabilize. In a tenth of a second you could be at
any location on the fuel map...Not to mention the eight surrounding
sites that are being interpolated.
The problem with "holding things" on and eddy current dyno is that is things heat up in these air
cooled engines and the hidden code in the Delphi ecm starts changing
things. You can really only do one wide-open throtte pull on a dyno at one rpm
and load site before the engine heats up too much.
Best do real world data
recording with the TTS while you ride and then evaluate, in real time,
your map with the RSR milli-second fast RSR Fuel Ratio Gauge with
genuine 18mm Bosch O-Sensors. Real
time monitoring when you ride is the only way you can evaluate
transitionals, acceleration additives, and wide open throttle...all in
the real world moving through the air and on the road like you do
normally. All LSR 2-1 exhausts can be ordered with both 12mm and 18 mm
O2 sensor bungs.
People kept asking about RB Racing releasing LSR 2-1 exhaust systems for the new Harley Motor. Well, we are fixtured for them with a new muffler design that takes into account the increased compression and displacement, but were not releasing anything until some things settled down. No matter what people say, this is an emissions-designed engine with a lot of compression, locked in place valve adjustment and camshafts that are simply going to give you next to zero in gains for your hard earned money in just changing the exhaust. Every exhaust manufacturer wants your $$$ before things are settled down. We don't. We'll released them when there were real gains to be made.
Testing has shown cam changes need to be
made along with a 2-1 exhaust to make any appreciable gains. Go ahead
buy your $500.00 air cleaners and your $700.00 Monster Slip-Ons...keep
the economy going. Dealer level cam modifications with CNC ported heads
are showing about 130 hp...about where the TC 120R motors were.