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techtalk:ref:perf01 [2017/03/19 08:00] – created ixl2relaxtechtalk:ref:perf01 [2024/01/19 15:26] (current) – hippysmack
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-Start Here+[[:techtalk:menu|{{  :techtalk:gototechnicalmenu.jpg|}}]] 
 +====== REF: Engine Conversions & Upgrades ====== 
 + 
 +====== Performance Upgrades ====== 
 +Typical Staged Sportster Engine Upgrades ((Freud- XLFORUM)) 
 + 
 + 
 +===== Paying Taxes ===== 
 + 
 +Stage 0: Stock = HP- 40 for 883, HP- 50 for 1200 (average) 
 + 
 +Stage 0.5 (also known as “The Harley Tax”)= HP- 50 for 883, HP- 60 for factory 1200 (Example)((Freud-http://xlforum.net/forums/showthread.php?t=1606840)) 
 + 
 +  * Stock plus: 
 +    * High flow air Cleaner  OR 
 +    * SE Slip-On Mufflers or equivalent  
 +   
 +===== Stage 1 Upgrades ===== 
 + 
 +Quote: Stage 1 and Harley Tax are synonims and include Pipes, Air Filter and Carburetor re-jetting/ ECU re-mapping ((Freud-http://xlforum.net/forums/showthread.php?t=1606840)) 
 + 
 +  * Stage 1.0 = HP- 60 for 883/1200, HP- 65-70  for factory 1200 (Example)((Freud-https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-general-discussion-and-problems/147938-consensus-harley-tax-stages-1-2-and-3?t=1606840)) 
 +  * High Flow Air Cleaner AND  
 +  * High Flow Exhaust AND 
 +  * Fuel/Air ratio adjustment : Jetting for carburetor, modify fuel tables in ecm with EFI bikes. 
 +  *  
 +  *    
 + === Known Stage 1 883 configurations === 
 + This is just examples of what has worked on some bikes. Each motor may be different in it's own unique way. 
 + 
 +883 Engines: 
 +  * Carbureted / Year Model / Jetting / Mods: 
 +     * . 
 +     * . 
 +     * . 
 +     * . 
 +  * EFI:/ Year Model / Jetting / Mods: 
 +     *  Screamin' Eagle Air Cleaner/ Screamin' Eagle Slip on exhaust 
 +     * . 
 +     * . 
 +     * . 
 +     * . 
 + === Known Stage 1 1200 configurations === 
 + 1200 Engines: 
 +  * Carbureted / Year Model / Mods: 
 +     * . 
 +     * . 
 +     * . 
 +     * . 
 +  * EFI:/ Year Model / Mods: 
 +     * . 
 +     * . 
 +     * . 
 +     * . 
 +  
 +===== Stage 1.5 Upgrades ===== 
 + Stage 1.5= HP-65 for 883/1200, HP- 70 for factory 1200 (Example)((Freud-https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-general-discussion-and-problems/147938-consensus-harley-tax-stages-1-2-and-3?t=1606840)) 
 +  * Stage 1 plus:  
 +     * Andrews N2 cams (mild)  
 +  *    
 +  *  
 +  *  
 + 
 +===== Stage 2 Upgrades ===== 
 + 
 +Quote: Stage II: Stage I plus cam upgrades ((rocketmangb- http://xlforum.net/forums/showthread.php?t=1606840)) 
 + 
 +Quote: Stage II: Camshaft, Larger displacement, Higher compression ((Freud-https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-general-discussion-and-problems/147938-consensus-harley-tax-stages-1-2-and-3?t=1606840)) 
 +  * Stage 2: Stage 1.5 plus: (Example)((Freud-https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-general-discussion-and-problems/147938-consensus-harley-tax-stages-1-2-and-3?t=1606840)) 
 +     * Andrews N4, N8, or SE bolt-in cams instead of N2 
 +     * SE S1 Lightning or other bolt-on +/- 10:1 heads 
 +     * HP=75 
 +               * Options: 
 +                  * 2 into 1 header system, add +/- 7 hp 
 +                  * SE carb (or equivalent), add +/- 3 hp 
 +                  * XR750 (or other) valve springs, no gain 
 +                  * Stage 2.5: Stage 2 plus 
 +                  * Professionally ported 10:1 or higher heads 
 +                  * Matching (to head) domed pistons 
 +                  * XR750 valve springs or SE cam kit 
 +                  * 2 into 1 header system 
 +                  * SE,S&S Super E, or Mikuni HSR42 carb 
 +                  *  HP=90+ 
 +               * Options: 
 +                  * big valves (big twin size), add +/- 5 hp 
 + 
 +  *  
 +  *  
 +  *  
 + 
 + 
 +===== Stage 3 Upgrades ===== 
 +Quote:Stage III: Its on like Donkey Kong ! ((rocketmangb- https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-general-discussion-and-problems/147938-consensus-harley-tax-stages-1-2-and-3?t=1606840)) 
 + 
 +Quote: Stage III: Boring and/or Headwork and/or Forced Induction and/or Nitrous  ((Freud-http://xlforum.net/forums/showthread.php?t=1606840)) 
 +Stage 3 =  HP- ???? 
 +  * Stage 2.5 plus:(Example)((Freud-https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-general-discussion-and-problems/147938-consensus-harley-tax-stages-1-2-and-3?t=1606840)) 
 +     * Big-bore cylinders and pistons and/or 
 +     * Stroker kit and/or 
 +     * Nitrous injection and/or 
 +     * Supercharging 
 +     *  Options: many 
 +  *  
 +  *  
 +  *  
 + 
 + 
 +====== Useful Tips Formulas ====== 
 +===== Formulas ===== 
 +  * Displacement: pi x (radius squared) x height (example: 4 inch bore, 4 inch stroke) = 3.14159 x (2 squared) x 4 = 50.265ci of displacement per cylinder 
 +  * Cubic Centimeters to Cubic Inches: cc ÷ (2.54 cubed) (example: 1200cc) = 1200 ÷ (2.54 cubed) = 73.23ci 
 +  * Cubic Inches to Cubic Centimeters: ci x (2.54 cubed) (example: 100ci) = 100 x (2.54 cubed) = 1638.7cc 
 +  * Horsepower: (torque x rpm) ÷ 5252 (example: 80 ft-lbs at 4000 rpm) = (80 x 4000) ÷ 5252 = 60.93hp 
 +  * Torque: (horsepower x 5252) / rpm (example: 100hp at 4000 rpm) = (100 x 5252) ÷ 4000 = 80 x 4000) / 5252 = 131 ft-lbs. 
 + 
 +===== Building and Performance Tips ===== 
 +  * [[http://www.hammerperf.com/techtips.shtml|Hammer Performance Tech Tips]] 
 +  * [[http://nrhsperformance.com/tech.shtml|NRHS Performance Tech Tips]] 
 +  * [[http://www.floheadworks.com/Departments/articles.htm|Flo Headworks Tech Tips]]  
 +  
 +  
 + 
 +\\ 
 +[[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]]

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