NoPistons -Mazda Rx7 & Rx8 Rotary Forum - 1990 Rx-7 Gtu S5 Rotor Compression

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- - 1990 Rx-7 Gtu S5 Rotor Compression (https://www.nopistons.com/2nd-generation-specific-17/1990-rx-7-gtu-s5-rotor-compression-35545/)

9Second7

03-14-2004 04:17 PM

I was wondering what compression rotors are in the 1990 GTU rx-7.

Also what are the different comp ratios mazda has in the different generation rx-7s?

Dramon_Killer

03-14-2004 04:33 PM

FAQ's section

madeinnuyawk

03-14-2004 10:15 PM

9:7:1 for s5 na... 9:0:1 for s5 turbo and fds

9:4:1 for s4 na and 8:8:1 for s4 turbo

bart3lz

03-15-2004 07:03 AM

so which compression rotors would be best for a high comp. engine....s5 n/a??

j9fd3s

03-15-2004 11:45 AM

Quote:

Originally Posted by bart3lz' date='Mar 15 2004, 05:03 AM

so which compression rotors would be best for a high comp. engine....s5 n/a??

yup

1Revvin7

03-15-2004 11:54 AM

Quote:

Originally Posted by j9fd3s' date='Mar 15 2004, 12:45 PM

yup

rx8 rotors!

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