Fan Alternator Housing Shroud (225mm), 911 RSR/906/914/6GT

Only 2 left
P/N: 901.106.103.00R
Regular price $791.58

Alt. Number:901.106.101.0R
Brand:MITTELMOTOR GmbH
Made In:Germany
WH Rack:H6-3
Please see video for RSR process!While the 911 series engines were always fitted with fan rings and fan wheels in the size 245mm, the racing engines were always equipped with the small 225mm fan impeller and blower ring. Each engine of the 911 or 914/6 engine can be equipped with the small fan ring, but the appropriate mounting belt and the appropriate motor air guide must be installed. Use with Fan Housing Strap, 911/914 (65-94), part number SMC.106.251.20, sold separately.

Due to the generally higher rotational speed of the racing engines and the associated loss of power via the impeller, the reduction in the diameter allowed the performance to be further increased without sacrificing cooling performance.

But anyone who is also interested in the historical authenticity of his Porsche racing or sports engine should also block the right impeller and the small blower ring. While the large impeller can easily be machined in the outer diameter, the blower ring must be replaced completely.

The entire production process of the RSR blasting is presented here in a 10-minute film (linked above), from the production of the production design drawing, the casting model, the entire CNC machining, the galvanic surface refinement up to the assembly at the motor for the examination of the quality and dimensional stability.


Porsche Part Number Variation 901-106-103-00R 901.106.103.00R 90110610300R 901 106 103 00R