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Pics of Exhaust sleeves in a FD vs Cosmo..???

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Old 03-25-04, 08:46 AM
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Pics of Exhaust sleeves in a FD vs Cosmo..???

Hi...

Does anybody have pics of the exhaust sleeves in a Cosmo engine vs a FD engine..

I know there is a big different in the size of these two engines but i need a picture of the different or the size in cm/feet...???

I have a cosmo engine in my FD and i want to make the exhaust sleeves bigger so it is the same as the Fd engine....

Thanx
Old 03-25-04, 09:47 AM
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How do you know you have a cosmo engine in your FD?

Either way, the best way to get FD style exhaust ports in a cosmo motor is to buy NEW FD rotor housings. Porting the sleave will eat up a lot of porting bits and requires disassembly of the motor.
Old 03-25-04, 11:25 AM
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I know i have a cosmo engine because i did buy it myself from Japan and i could se that it was not the same as a FD engine... And it is now in the car...

Where can i buy new FD rotor housings...???

Thanx
Old 03-25-04, 12:37 PM
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Hej Janus


Here's a old thread by Michel showing a photo of a cosmo exhaust sleeve.

http://www.nopistons.com/forums/inde...1&t=14153&st=0


PM Michel (rx7tt95) He is a photographer by trade and I am sure he has more photo's comparing the cosmo/FD exhaust sleeves.


Hope you get it all working by the end of May?

Oliver
Old 03-25-04, 12:51 PM
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Photo's of a new housing and unported exhaust runners for and FD.

http://www.ajc13b.com/New_Engine/fresh_engine.htm
Old 03-25-04, 05:12 PM
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Originally posted by Seven93
Where can i buy new FD rotor housings...???

MAZDA
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