S5 n/a engine, S4 n/a trans... which clutch?

need RX7 · 12-15-2009, 04:48 PM

I may be coming up on a S5 n/a engine in the future to swap into my S4 n/a. I'd like to use my S4 n/a transmission, but I'm not sure which clutch to use. I've noticed that all the clutch kits I've looked at have different part numbers for S4 and S5. I'm guessing it has to match the transmission, since I can't see how there could be a difference on the flywheel side

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C. Ludwig · 12-15-2009, 05:57 PM

You would use the clutch that worked with the flywheel. So you will want an S5 clutch. Still trying to envision the differences. I know the disk itself is the same between the two. The S4/S5 use different bolts for the cover, but I'm pretty sure one will bolt to the other.

djmtsu · 12-15-2009, 08:52 PM

^^Yep. You go with the flywheel setup on the engine.

12-15-2009, 04:48 PM	#1
need RX7 Clean S4 Nutswinger Join Date: Mar 2008 Location: Sterling Heights, MI Posts: 485 Rep Power: 18	S5 n/a engine, S4 n/a trans... which clutch? I may be coming up on a S5 n/a engine in the future to swap into my S4 n/a. I'd like to use my S4 n/a transmission, but I'm not sure which clutch to use. I've noticed that all the clutch kits I've looked at have different part numbers for S4 and S5. I'm guessing it has to match the transmission, since I can't see how there could be a difference on the flywheel side . __________________ -Ted -1986 Mazda RX7 Sport [DD/beater]: engine finally let go at 205k. parts car status. -1986 Mazda RX7 base [resto-mod project]: S5 n/a swap in progress.

12-15-2009, 05:57 PM	#2
C. Ludwig Rotary Masochist Join Date: May 2008 Location: Floyds Knobs, IN Posts: 494 Rep Power: 18	You would use the clutch that worked with the flywheel. So you will want an S5 clutch. Still trying to envision the differences. I know the disk itself is the same between the two. The S4/S5 use different bolts for the cover, but I'm pretty sure one will bolt to the other. __________________ _______________________________________________ *One stop Haltech, AEM, Syvecs shopping. Installation and tuning.* http://www.lms-efi.com *Free support. Drop us an email.* chris@lms-efi.com 502-515-7482 Facebook @LMS-EFI

12-15-2009, 08:52 PM	#3
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	^^Yep. You go with the flywheel setup on the engine. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5