DIY Porsche 928 supercharger system

  
  These pages detail the steps and procedures that I took to build my own supercharger system. These instructions will work on all '85 - '86 32V Porsche 928S. However, with some minor modifications it can work on ALL 928s.

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  This is the rough location I choose to install the Paxton Novi GSS supercharger. The A/C compressor and the air pump were removed to make room for the Paxton head unit.   Using Plexiglas for the mock up, made locating the required mounting holes a lot easier. The two panes of plexy are shaped exactly like the final steel plates. The aluminum spacers represent the distance between the two plates and will be used during the cross brace design.  
     
  Using the plexy plates as a template, the final panels were cut out of flat steel stock.   Using the rear plexy plate, the cross bracing was bent to achieve maximum rigidity.  
     
  This is how the finished supercharger bracket looks like. The aluminum spacers were replaced by steel tubes, the cross bracing was welded in between the front and the rear plates. Also, the entire bracket was boxed in to make is as strong as possible.   After painting the bracket, installing the supercharger and the belt tensioner, the entire assembly was test fitted on the 928. The crankshaft has the additional pulley already mocked up. This pulley cam off an early 90's Ford Crown Victoria V8.  
     
  This is how the additional supercharger crank pulley was dialed in and welded to the stock pulley unit. This step is very time consuming but it is necessary to achieve a wobble free pulley.   With the crankshaft reinstalled and painted, the supercharger drive belt is installed. Additional bracing was made to strengthen the bracket. This brace is visible at the top left part of the picture. The most difficult part of the project is complete. Everything from here on is a lot easier  
     

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