Bishop's Performance
(313)537-5026

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Site last updated on
04/06/08

 

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© Bishop's Performance

Evolution

Twin Cam Evolution Sportster Break-In

These are the basic parts that we use in our most popular packages.
Some parts may vary by model and/or personal preference.
Additional parts and/or machining may be involved.
Optional items are marked with a #.   SE = Screamin' Eagle
®

Package #1 Low-End Torque
(Great for Dressers)
Approximately 70-75* hp and 80* ft-lb torque
Heads Stock, Stage 1 or 2 "HammerHeads"
Pistons Stock
Cam Andrews EV23
Air Cleaner SE -or-  Ness Big Sucker
Intake Carb = SE intake manifold, ported
EFI = stock throttle body or ported
Fuel Management Carb = Stock Carb w/ Keihin Jet Kit
EFI = Tunable system
Clutch # Stock -or- Extra-Plate Kit
Exhaust # V&H -or- Cycle Shack slip-on mufflers,
V&H Pro-Pipe  -or-  Thunderheader 2-1
Examples of
Evo Package #1
3 bikes with EVO Package #1

Package #2 Mid-Hi Hp/Torque
Approximately 80-85* hp and 85-90* ft-lb torque
Heads Stock, Stage 2 "HammerHeads"
Pistons SE Hi-Compression Cast
Cam V-Thunder EVL3030
Pushrods Adjustable,  SE  -or-  S&S
Air Cleaner SE -or-  Ness Big Sucker
Intake Carb = SE intake manifold, ported
EFI = Bored/ported throttle body
Fuel Management Carb = Stock Carb, bored w/ Keihin Jet Kit
        -or-  SE 44mm CV
EFI = Tunable system
Clutch Extra-Plate Kit
Exhaust # V&H -or- Cycle Shack slip-on mufflers,
V&H Pro-Pipe  -or-  Thunderheader 2-1
Examples of
Evo Package #2
2 bikes with Evo Package #2 2 bikes with Evo Package #2

Package #3 Hi Hp/Torque
Approximately 90* hp and 90* ft-lb torque
Heads Stock, Stage 2 "HammerHeads"
Pistons SE Hi-Compression Cast
Cam V-Thunder EVL3060
Pushrods Adjustable,  SE  -or-  S&S
Air Cleaner SE -or-  Ness Big Sucker
Intake Carb = SE intake manifold, ported
EFI = Bored/ported throttle body
Fuel Management Carb = Stock Carb, bored w/ Keihin Jet Kit
        -or-  SE 44mm CV
EFI = Tunable system
Clutch Extra-Plate Kit
Exhaust # V&H -or- Cycle Shack slip-on mufflers,
V&H Pro-Pipe  -or-  Thunderheader 2-1
Examples of
Evo Package #3
Petie's dyno graph Rich's dyno graph

Package #4 89" Stroker
Approximately 85-100* hp and 90-100* ft-lb torque
Heads Stock, Stage 2 "HammerHeads"
Crankshaft Ultima Stroker Flywheels & Rods
Pistons Ross/Ultima
Cam (we've used several different ones) Andrews EV27, S&S 600, HD SE60,
V-Thunder EVL 3040 or EVL3070
Pushrods Adjustable,  SE  -or-  S&S
Air Cleaner SE -or-  Ness Big Sucker  -or- "Forcewinder"
Intake Carb = SE intake manifold, ported
EFI = Bored/ported throttle body
Fuel Management Carb = SE 44mm CV Carb,
SE or tunable ignition & coil
EFI = Tunable system
Clutch Rivera Pro-Clutch
Exhaust # V&H Pro-Pipe  -or-  Thunderheader 2-1
Examples of
Evo Package #4
3 bikes with 89" Stoker Package, 3 different cams Danny W's dyno graph, SE60 cam

* Actual results may vary.

Twin Cam Evolution Sportster Break-In

 

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