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if you had the cosmo turbos in front if you you'd see that the sleeves direct the exhaust as far away from the turbo as it can.
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Yeah I wonder why they did that, it must make low end torque.
for the record the McMaster-Carr part number for the roll pins that hold the sleeves in is 92383A724 |
I bet Lynn has the answer to that. Ive seen him write on air dynamics before.
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Its called マツダ AIPI , Mazda air injection port insert, it is designed to flush out trapped gases on the exhaust cycle via air injection , and then dilute anything thats leftover from the cylce, the purpose is to improve low speed charge ignitability, and served 3 purposes, it lowered idle speed in the cosmo with the automatic transmission to make the shift from P to D or R smoother, it made the engine idle smoother, and lowered the tailpipe readings at idle for emissions via dilution.....Maxt
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So its for all those who want a smooth ride. I think when we bought the rotary we threw that out the window. I like my car rough and loud.
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Originally Posted by RONIN FC' post='814166' date='Apr 15 2006, 09:09 PM
I bet Lynn has the answer to that. Ive seen him write on air dynamics before. How about a SWAG? The open end is smaller, and matches the exhaust manifold, (Also small) so there is higher flow velocity at lower speeds. So, the small turbine comes on a bit sooner. The Cosmo is a big car and needs more power right off idle. Kind of a poor choice for a rotary (especially a 2 rotor) engine. A nice long stroke V-8 would be nice. Lynn E. Hanover |
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