CUSTOM YAMAHA BANSHEE PORTING SERVICES
Basic woods port 60+ hp Perfect match T-6 port style version available
Big budget minded power porting fully upgradeable later if needed for even
Non 12 port style porting ...any style [except full comp drag port]
Non 12 port style Full Drag Port stock stroke $400.00
12 Port porting stock crank $445
12 Port stroker porting $475
12 Port Stroker crank porting (Our Most Popular Engine) up to
NOTE: 12 port cylinders have 2 additional finger ports installed
on each side of main intake ports and 2 window ports
machined into liners for greater fuel atomization. This requires
tig welding around both rear stud areas.
............... PLEASE READ THIS!! .................
In many cases ,I will need to see your engine,or cylinders in
order to quote for proper design correction costs if engine has
been previously modified by another builder. Previously
modified engines are almost certainly lacking in efficiency
matching, proper heat production, and dissipation of that heat.
In most cases, the engine can be corrected to where it needs
to be....at the front of the pack.
Extensive port mapping and calculation is required to properly
identify the design weakness..... so, accurate estimates are
difficult over the phone....please understand this.
Most times, the answers your looking for on previously built
engines that are NOT impressing you, don't exist until I run full
spectrum data comparison and analyze the efficiency
parameters to determine how well individual sections internally
are working with each other.. At that time I can identify every
weakness and determine proper method of correction, and
costs involved. Thank you for your understanding.
|Passion Racing Engines Tulsa, Oklahoma
When your ready for the good stuff , let our Passion
TOP END OVERHAUL PACKAGE
PRECISION BORE JOB,HONE, AND CHAMFER ,
WISECO FORGED PISTONS, RINGS,
PINS,CLIPS BASE GASKETS, REED GASKETS
AND COOL HEAD O-RING KIT
big bores slightly more, additional charges for specialty pistons
CYLINDER BORING WITH HONE AND
$65.00 PER SET
big bores additional
CRANKSHAFT TRUE AND WELD
Make sure your crank is up to the task with precision
alignment and pin welding!
Last updated 10-2012
PASSION 12-PORT OEM CYLINDER PORTING
PASSION RACING OFFERS THE ONLY PORT ,PIPE , COMBUSTION CHAMBER ,
AND INTAKE SPEC MATCHED CHEETAH CUB PACKAGES IN THE
BUSINESS...PERIOD!! ENTIRE PACKAGE IS RESONANCE MATCHED FOR
ABSOLUTELY THE MOST VIOLENT POWER DELIVERY POSSIBLE. ABSOLUTELY
THE BIGGEST BANG FOR THE BUCK IN BANSHEE HIGH PERFORMANCE
THIS ENGINEERING AND BUILD SERVICE IS AVAILABLE FOR ANY FORMAT 2 CYCLE ENGINE REGARDLESS OF APPLICATION
4 CYLINDER 1414CC BANSHEE
455 crank HP
PRECISION CASE BORING,MATCHING AND CASE TRENCHING,
RE-SLEAVING, CYLINDER GRAFTING DIFFERENT CYLINDERS TO
VARIOUS BOTTOM ENDS
CP INDUSTRIES CYLINDERS AND MONOBLOCKS
COMPUTER DESIGNED PORTING SERVICES FOR ALL CP PRODUCTS INCLUDING
OUR RMS SERIES COMP DRAG RACING DESIGNS
WORLD CLASS COMBUSTION CHAMBER DESIGN
ON OUR PIONEERED SOFTWARE
GENUINE SCIENCE INSURES A GENUINE ADVANTAGE
DON'T SETTLE FOR LESS!!!
Each engine is designed specifically for YOU and
your exact application using your current, or desired
supporting exhaust and induction components.
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kx-125 kx-500 kx-250 rz-350 porting yamaha jet-ski
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120HP CR-500 OEM BIG BORE,BIG REED, BIG
PASSION RACING SPECIALIZES IN THOSE COMPLICATED OVER THE TOP ENGINE BUILDS THAT YOU
HAVE ONLY DREAMED ABOUT...NOTHING IS OUT OF OUR REACH HERE ARE A FEW EXAMPLES
5 PARAMATER EFFICIENCY LIMITATION COMPARISON DESIGN
PROCESSES....... A PASSION EXCLUSIVE
Currently own a drag ported engine from another
builder that really runs, but half of your runs it bogs out
on the launch if the tires like the turf a little too
Let me design a engine that WILL NOT bog on the
launch, carry more tire, gear, and gain 6 bike lengths in
Are you a bigger guy with a real disadvantage in
acceleration against your light weight competitors???
Passion can correct this issue, we do it every day.
Even on smaller displacement engines, this
transformation is made possible by accurate port RPM,
and multi- parameter efficiency matching...real science
getting you back in the game!
Have an old T-REX, ESR, or Superior Sleeve
monoblock sitting around collecting dust? Let me
configure it to destroy some of the latest technology
monoblocks being produced. That old T-REX is no
joke, it just needs updated to 21st century science by
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All engine design, portwork, machine work, and
assembly is performed by James Smart.
Absolute accuracy to blueprint ,and detailed handwork
goes into every engine in our shop.
Every engine is spec built for individual customers
needs and expectations.
No trainees, part timers, or quota drivin hack artists
touch your build.
Consistency + HUGE gains in acceleration, and the
ability to carry gear ratio is what wins , and keeps
LATEST SNIPER RESEARCH CHAMBER
8 SYNCHRONIZED AMPLITUDE WAVES!!!!
CUSTOM SPEC AND
AND CONE KITS
FOR MANY APPLICATIONS
PASSION RMS 500 CC OUTLAW
KART ENGINE SHOWN WITH
SPEC MATCHED SNIPER