NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   20B Forum (https://www.nopistons.com/20b-forum-51/)
-   -   20b rotor interchangeable (https://www.nopistons.com/20b-forum-51/20b-rotor-interchangeable-66263/)

hsmidy 06-16-2007 12:02 AM

hey



pretty much im after some clearification on the what rotors can be swaped for the 20b ones,

as i know it you can use s5,s6 turbo rotors and the 13b cosmo rotors, is this correct?



wanting to know as my rear rotor carbon locked, cranked it over and it spat and apex seal stuffing the housing and rotor so yeah just looking for a replacement.



cheers in advance

j9fd3s 06-17-2007 10:53 AM

s5 t2, and both cosmo's used the same part number rotors

hsmidy 06-17-2007 02:49 PM

hey thanks for that, i take it that the s6 is different then

j9fd3s 06-19-2007 03:23 PM


Originally Posted by hsmidy' post='875337' date='Jun 17 2007, 12:49 PM

hey thanks for that, i take it that the s6 is different then



different part number, but the big difference is the rotor bearing

hsmidy 06-21-2007 12:13 AM

apart from the bearing being different( i assume your refurring to the windows in it?) are they the same, same size seals used,(s6 dont use 3mm apex seals do they?) same weight within reason, same comp ratio?



cheers for the replys to

j9fd3s 06-21-2007 11:12 AM

86-2002 uses the same seals, 89-2002 is all the same weights, and the turbo rotors are all 9.0:1 compression

hsmidy 06-23-2007 06:24 PM

thanks heaps


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