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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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Very competitive pricing
 
Harley-Davidson® High-Performance & Reliability Specialists
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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
     
Buell® / Sportster® 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.

 

BUELL ® ENGINES
74" Cubic Inches  
M2 Cylcone performance dyno run comparison to stock

74cu" Buell ®, 1200 cc
M2 Cyclone with CV carb and N2 cams

96 HP, 90 FT LBS Torque (SAE corrected)

 

84" Cubic Inches
S1 Lightning performance dyno run

84 cu" Buell ®
1999 S1 Lightning completely balanced and blueprinted

113 HP, 105 FT LBS Torque (SAE corrected)
1996 S1 All Stock Bike Makes- 75 HP, 70 ft lbs torque

XB9 SuperSport  
XB9 performance dyno run comparison to stock

984cc Buell ®
2003 XB9

86.55 HP, 67.28 FT LBS Torque (SAE corrected)
Biggest thing to look at is area under the curve!!

XB12 SuperSport  
XB12 performance dyno run comparison to stock

1200cc Buell ®
2005 XB12R

88.08 HP, 68.16 FT LBS Torque (SAE corrected)
Biggest thing to look at is area under the curve!!

SPORTSTER ® ENGINES
883-1200 Conversion  
883R, 883-1200 conversion, performance dyno run comparison to stock

883-1200 Conversion with N8 cams
2002 883R

89.02 HP, 82.98 FT LBS Torque (SAE corrected)

1200 cc

Sportster Sport performance dyno run comparison to stock

74cu" Sportster, 1200 cc
2000 Sportster Sport

Whitford's Bike - 88 HP, 84 ft lbs torque
Stock 1200 - 68 HP, 71 FT LBS Torque

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