NoPistons -Mazda Rx7 & Rx8 Rotary Forum - 86/na What Rotors Can I Use?

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tewquick2c

10-12-2003 03:32 PM

Help please, I have an 86 na and im thinking of buying an 87 housing what years of rotor can i use?

crackheadmel

10-12-2003 04:03 PM

from what ive read any of the rotors in the engines 86 on (well im not sure about the rx8)

the s5 n/a rotors have a 9.7:1 cr which is the highest available i belive would be your best choice IMHO

rx7_re

10-12-2003 04:11 PM

You can use the 86-88 NA rotors with no problem.

If you want to upgrade and get the higher compression 89-91 Na rotors you need to also get the 89-91 NA flywheel and front counterweight.

Robbomaz

10-12-2003 06:21 PM

Quote:

Originally Posted by crackheadmel' date='Oct 13 2003, 05:03 AM

from what ive read any of the rotors in the engines 86 on (well im not sure about the rx8)

the s5 n/a rotors have a 9.7:1 cr which is the highest available i belive would be your best choice IMHO

Just finished building a NA PP 13B for a race car with Renesis 10:1 rotors..

The apex groove had to be machined to take the Hurley seal as the Renesis groove has a taper but other than that no ish. Motor gets lit this week

crackheadmel

10-12-2003 07:03 PM

oh i didnt know the renisis was 10:1

well learn something new every day

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