Hot News..Latest From RB Racing
Sturgis Bike Week 2018
No we are not going to Bike Week at
Sturgis...We stay in La La Land and work...But we know someone who
would like to go who has never made the trip. Email us at
firstname.lastname@example.org if you for some reason cannot go, or if you
have a spare room in the middle of the mixture of two-wheeled mania and
mayhem. Rather interesting participant who wades right in.
13 More Milwaukee-8 Acronyms
: FXBB 
: FXLR 
: FLSL  Floor Boards
: FXFB  / FXFBS 
: FLDE  Floor Boards
: FLSB  Bags
: FLFB  / FLBS  Floor Boards
: FLHC /FLHCS  Bags; Floor Boards
: FXBR  / FXBRS FXBB
New LSR 2-1 Turn Outs and Slash Cuts: New Part Numbers and Prices
Add these 13 new bits of alphabet soup to your memory bank to impress your fellow riders.
165HP @ 9 PSI Boost... 95 Cubic Inches
Torque is the game..Take it
to 4 or five psi of boost, short shift, and do it again...80 mph
instantly. Or, if the handlebar adjustable boost control knob is set at
9 PSI, get 165 hp now. Torque allows you to effortlessly roll-on and
pass that line of Semis, or leave the other bikes behind. RB Racing Turbos.
Perry on his 95" Twin Cam
with his OEM Delphi controller reprogrammed with RB Racing's 236hp
Injectors (9 gram/sec).
New Indian Chief LSR 2-1 Pro Stock Exhausts
New Indian Chief LSR 2-1 Pro Stock Exhaust Systems.
The Indian Chief is a "from the ground
up" interpretation of the classical V-Twin, kept alive for over 100
years by Harley-Davidson, the sole survivor. In 111 or 116 cubic inch
formats it's short on horsepower and long on clean sheet engineering.
Indians are here to stay this time around after several aborted
attempts to revive the marque.
Beautiful paint and chrome and true
"Indian Heritage" styling it's a more modern interpretation of the
classical V-Twin...This time around with three camshafts and some pushrods as straight
as an Indian's arrow .
The OEM exhaust has little in the way of
performance tuning. We've got that covered with a pure merge collector
LSR 2-1 design. Maximum benefit with Stage 1/2/3 and larger throttle body (60mm) modifications past 130 horsepower.
Prices are on our Part
Number Price Page. We build to order. Payment at time of shipment.
Dual Coat Black Ceramic or Silver Ceramic with a choice of black or
chrome heat shields.
Follow this link for specials on some LSR 2-1 Exhausts
Diana Sterk Photography
We run into all sorts of people along
the way in this go-fast game...Some good, some bad, some interesting,
some we'd like to forget. We met Diana on a Race Project, since ended. She is definitely interesting and creative. Check
out Diana's Photography on Facebook
and her Smugmug
page... Bikers, Harleys, C&W and Hard Rock Bands, Nature, Horses, Old
Cars, The Homeless, Architecture...whatever catches her eye.
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 11.5:1
The two Yellow lights L-R are 15.5:1 and 14.5:1 (Stoichiometry)
The two Orange lights L-R are 13.5:1 and 12.5:1 (Maximum torque and power)
The Red light is 11.5:1
Part Number 06-1026. PDF Instructions. $295.00
I was sleeping in Class
from the man...Panheads forever. Who the hell cares about laws anyway?
You're an outlaw and laws regarding sines and cosines just don't figure
into the picture. Well, get out your tape measure and enter some
numbers. Stay away from the chalkboards and that money you were going
to pay your rent with is better spent on a new set of tires. The road
RB Racing offers over 40 free online calculators
to figure out all sorts of things like rake and trail, compression
ratio, camshaft data, boost, airflow and horsepower requirements and
many others. All free online at
https://www.rbracing-rsr.com/calculations.htm...or click on the
"Calculations" link above.
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.
It's still an air-cooled 45 degree V-Twin
no matter what they say about water or oil cooling. BTUs are BTUs...It
just has less flexibility in terms of modification than
EVOs or Twin Cams at this time. Another expensive puzzle. Does have more torque than before with the compression.
People tend to forget these are heavy couches. Adding weight is a
no-no. One of our M-8 test bikes came in with a V&H Duals that,
we removed them, weighed 41 pounds!!
Our M-8 exhaust weights far less than Half of that and the Pro Stocks
1/3 of that. Power to weight ratio. Heavy couches.
The Milwaukee-8 is a taller, heavier
engine with the O2 sensors moved upstream, closer to where they should
have been. Earlier LSR 2-1 designs will not fit this motor. We supply a
different saddlebag mount system for our under the bag designs like the
Pro Stock Spyder and Black Hole. All systems also have a three point
laser-cut mount off of the transmission.
00-1396 LSR 2-1 Pro Stock Spyder exhaust with 2" primaries and four
All of our M-8 exhausts should be compatible with Harley's 2017 Cool Flow Fan. Hot puppies these are.
Milwaukee-8 LSR 2-1's
for Dressers in production
Milwaukee-8 exhaust LSR 2-1,
00-1306 Pro Stock Challenge in 2". Coated in Dual-Coat Black
for a customer who wanted a "Really loud racing exhaust". At the dealer
level cnc ported heads, cams and bigger bore kits are up to about 130
hp. When you consider an 80" EVO was about 58 HP with 175 to 200F oil
temperatures it's no wonder these run closing in on 300F hot.
Milwaukee 8 Exhausts: 12mm and 18mm O2 Sensor Ports Standard
All LSR 2-1 Milwaukee 8
Exhausts come standard with both 12mm and 18mm O2 ports. This gives
customers the choice to run either the OEM 12mm or 18mm O2 ports (or
both with our RSR Air Dual Fuel Ratio Gauges) and tune with various
narrowband or wideband options on the market. Screamin' Eagle Smart
Tune PRO Automatic Tuning Module shown above. RSR Wideband Dual O2 Air
Fuel Ratio Meters are used wuth the Bosch LSU4.2/9 Wideband sensors.
We have also created additional LSR 2-1 designs: 00-1393, 2" LSR
Outs; 00-1394, 2" LSR 2-1 Slash Cuts; 00-1395, 2"LSR 2-1 +5"
Cuts; 00-1396, 2" LSR 2-1 Pro Stock Spyders; 00-1397, 2" LSR 2-1 Black
Holes; and 00-1398 2" LSR 2-1 Pro Stock Systems.
Most orders are for
Dual-Coat Black Ceramic. Chrome and Silver Ceramic finishes can also be
ordered. All M-8 exhausts come with both 12mm and 18mm O2 Ports standard.
00-1393 in stock 45 degree 2" Turn Out in Chrome/Chrome Shields
00-1393 in stock 45 degree 2" Turn Out in Dual Coat Black Ceramic/Black Shields
00-1395 in stock +5" Slash Cut 2" in Dual Coat Black Black Ceramic/Black Shields
00-1397 in stock LSR 2-1 Black Hole 2" in Dual Coat Black Ceramic/Black Shields
No More Dynas.... Hello Eight New 2018 Softail Models
Bye Bye Dya...Adios the wannabe FXR.
Hello monoshocks that handle and are lighter with the M-8 Engine. Dyna as well as Softail names
have been preserved to smooth egos.
We are gearing up for these with our full product line from Pure Racing
LSR 2-1 Turn Outs and Slash Cuts to our LSR 2-1 Pro Stocks as well as
our sophisticated LSR-1 Black Hole and LSR 2-1 Pro Stock Spyder designs.
These big M-8 engines love our 2" primaries. M-8's are now out to 117" in CVO models.
Something like our Bol D'Or Monoshock frames
from 40 years ago. Triangles and stiffness never go out of style.
Exhausts in progress for:
2018 Softails: Mid peg Models; Street Bob, Low Rider
2018 Softails: Floorboard Models; Softail Slim, Fat Boy, Softail Deluxe, Heritage Classic
2018 Softails: Forward Controls; Fat Bob, Breakout
Turbo Kits Shipping
Racing Turbo kit
is for a 2003 Twin Cam Dresser headed for a customer who intends
to run 8 psi on his stock TC88 motor. There is a lot of custom
fabrication and machining in these. The large intercooler keeps inlet
temperatures close to ambient. RSR Dual Air Fuel Ratio Gauge, TTS
MasterTune and injector / throttle body upgrades. Kits ship with rider adjustable boost 5 to 25 psi.
How much horsepower?...Well, at low boost (9 psi) 165 hp and 164
ft lns torque on a 95" Twin Cam.You can go as high as 25 psi.
One turbo kit: Three double wall boxes with all parts individually packaged. 76 pounds off to a customer.
Turbo Fuel Control
This sure does get complicated since
we've been at it for way over 30 years....From draw through SU
carburetors in 1980, to blow-though carburetion, to making our own
closed loop RSR Fuel Injection to advanced Pectel-Cosworth electronics
as well as adapting to the ever-changing Harley OEM efi systems.
We have a number of options these days...It all depends on the year of
the bike. Injectors to cover from 236 to 328 hp @ 80% Duty Cycle.