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The Harley-Davidson ® High - Performance Cylinder Head Design and Engine Modification Shop
Complete Engine Rebuilds - Fuel Injection and Carburetor Tuning - Chassis Work - Parts - and More ..
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johnson engine technology, high performance, performance modifications, contact information, parts, service, performance pacages, how to schedule an appointment, testimonials, dyno runs, photos, job status, warranty information
     
Twin Cam Dyno Runs
All J.E.T. dyno runs are a result of work done by Johnson Engine Technology.  Click on the run to get a closer look.  If you are having trouble loading any of the images, try clicking the refresh button at the top of your page.

 

 

95" Cubic Inches  
dyna high performance, efi

95cu" EFI Twin Cam with Rinehart Exhaust
2005 Dyna with stock comparison

 

98.51 HP and 105 FT LBS Torque (SAE corrected)

95 twin cam - fuel injected - HP - torque

95cu" Carbureted Twin Cam
44 CV carburetor and Rinehart Exhaust
2004 Roadking

100.23 HP and 111.55 FT LBS Torque (SAE corrected)

johnson engine technology vs S&S cycle 95 package, dyno comparison J.E.T. 95cu" carbureted bike vs S&S Cycle 95cu" carbureted bike
Roadkings
(all runs SAE Corrected)

J.E.T. =100.23 HP, 111.55 FT LBS Torque
S & S Cycle = 92 HP, 102 FT LBS Torque
STOCK= 67.37HP, 75.28 FT LBS Torque

103" Cubic Inches
carbureted roadking performance dyno run, 103 cu", 101HP and 114 torque

103 cu" Carbureted Twin Cam
44 CV carb and Cycle Shack Pipes
2003 SE Roadking Special Edition with stock comparison

101.27 HP and 114.02 FT LBS Torque (SAE corrected)

106" Cubic Inches  
nightrain dyno run comparison to stock, 105 hp, 122 torque

106 cu" Carbutereted Twin Cam with Thunderheader
2001 FXSTB NightTrain with stock comparison

105.41 HP, 121.88 FT LBS Torque (SAE corrected)

2006 fatboy custom efi, high performance, dyno run for fatboy efi

106 cu" EFI Twin Cam with Cycle Shacks
9.5:1 compression
2006 Fatboy Custom with stock comparison

107.33 HP and 117.08 FT LBS Torque (SAE corrected)

106 cu" dyna, performance dyno run comparison to stock, bassani pipes

106 cu" EFI Twin Cam with 2-into-1 Bassani
9.5:1 compression
2001 FXD Dyna

104.12 HP and 111.9 FT LBS Torque (SAE corrected)

116" Cubic Inches  
116 cu" package, 131 hp 141 torque, performance dyno runs

116 cu" Twin Cam with all the J.E.T. fixins'

 

131 HP, 141 FT LBS Torque

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