Aeroslave pipe set-up.

[colin chariandy]

Help needed...tuned pipe problems!!
 
I've bought the AeroSlave CF pipe for my OS140RX turning an APC 15x11 4-blade. Aeroslave gave a starting length of 29.5 inches from the engine exhaust port to the end of the pipe. However, the engine runs extremely poorly at this length. In order to transition past the midrange the high end needle has to be very lean resulting in a lean high end. The power comes in with a bang and the engine accelerates in down lines. I think this is too short a pipe length although the header is full length.
 
Does anyone have any experience running these pipes on OS engines? What's the best starting point?
 
Colin.


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