https://www.mazdatrix.com/flywheel.htm
Turbo flywheel is different size than n/a. You want a flywheel that fits the turbo and RX8 models.
Dave Leonard
Charlie, I have one of Lou Ross’s PSRUs and I was surprised when converting over to Tracy’s PSRU to find that the diameter of the Ross flywheel was 1” smaller in diameter – didn’t realize this until I stuck the starter into the Tracy mount and found it’s drive gear was approx 1/2” away from the teeth on the flywheel. So had to ditch it and go find a more recent version. Ed From: Charlie England Sent: Tuesday, May 20, 2014 9:20 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: flexplate / flywheel saga continued Hmm... this is curious. The seller says 'fits 86-91', so that should be 2nd gen. I wonder if the turbo flywheel is larger diameter (same diameter as the flexplate). Guess I'll call Fidanza & ask, before I contact the seller.Just out of curiosity, would it be possible to just move the starter closer to the e-shaft centerline to match the smaller flywheel? (I do have mine mounted on the plugs side of the engine).I don't really expect to need this flywheel, but if it's useable, I'll hang on to it.Thanks for the help,CharlieOn 5/20/2014 5:03 PM, Tracy wrote: I bought 2 aluminum racing flywheels for RX-7, one new and One used. Both were same diameter as 2nd gen flex plate although the seller said they also fit RX-8. I am not familiar with the " FB or FC " terminology. I'm wondering if they mean it is a 1st gen RX7. I would assume FC means 2nd gen since 3rd gen is FD. TracySent from my iPad On May 20, 2014, at 15:25, "Charlie England" <flyrotary@lancaironline.net> wrote: Well, I recently bought a used aluminum flywheel with the following description:Quote: RX7 8.5Lb Fidanza Aluminum Flywheel for FB or FCFor sale is a 8.5lb Aluminum Fidanza Flywheel for a RX7 Non Turbo , its used and could use a new friction plate fits 86-91 Non turbo RX7s might fit Fb 2nd gen RX7s as well i'm not 100% sureUnquote.It was reasonably priced, since I don't need the wear surface, so I figured it would be 'plan B' if I ever have an issue with the flex plate. When it arrived (yesterday, after everyone was gone), I sat it on top of my (cracked) flex plate, and it's almost an inch smaller in diameter. The mounting holes in the center seem to line up properly. I remember reading about milling the drive plate to move the starter .2" closer to the engine, but I don't remember anything about the smaller diameter. So, my questions: Did I purchase the wrong item, would I simply make my starter cutout in the plate closer to the centerline to account for the smaller diameter, or was the flywheel mis-represented?If it's not the described item, I need to send it back, but I don't want to bother the seller if I simply bought the wrong flywheel.Thanks,Charlie <AL flywheel.JPG> --Homepage: http://www.flyrotary.com/Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html No virus found in this message.Checked by AVG - www.avg.comVersion: 2014.0.4592 / Virus Database: 3950/7529 - Release Date: 05/20/14
I bought 2 aluminum racing flywheels for RX-7, one new and One used. Both were same diameter as 2nd gen flex plate although the seller said they also fit RX-8. I am not familiar with the " FB or FC " terminology. I'm wondering if they mean it is a 1st gen RX7. I would assume FC means 2nd gen since 3rd gen is FD. TracySent from my iPad On May 20, 2014, at 15:25, "Charlie England" <flyrotary@lancaironline.net> wrote: Well, I recently bought a used aluminum flywheel with the following description:Quote: RX7 8.5Lb Fidanza Aluminum Flywheel for FB or FCFor sale is a 8.5lb Aluminum Fidanza Flywheel for a RX7 Non Turbo , its used and could use a new friction plate fits 86-91 Non turbo RX7s might fit Fb 2nd gen RX7s as well i'm not 100% sureUnquote.It was reasonably priced, since I don't need the wear surface, so I figured it would be 'plan B' if I ever have an issue with the flex plate. When it arrived (yesterday, after everyone was gone), I sat it on top of my (cracked) flex plate, and it's almost an inch smaller in diameter. The mounting holes in the center seem to line up properly. I remember reading about milling the drive plate to move the starter .2" closer to the engine, but I don't remember anything about the smaller diameter. So, my questions: Did I purchase the wrong item, would I simply make my starter cutout in the plate closer to the centerline to account for the smaller diameter, or was the flywheel mis-represented?If it's not the described item, I need to send it back, but I don't want to bother the seller if I simply bought the wrong flywheel.Thanks,Charlie <AL flywheel.JPG> --Homepage: http://www.flyrotary.com/Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html
Well, I recently bought a used aluminum flywheel with the following description:Quote: RX7 8.5Lb Fidanza Aluminum Flywheel for FB or FCFor sale is a 8.5lb Aluminum Fidanza Flywheel for a RX7 Non Turbo , its used and could use a new friction plate fits 86-91 Non turbo RX7s might fit Fb 2nd gen RX7s as well i'm not 100% sureUnquote.It was reasonably priced, since I don't need the wear surface, so I figured it would be 'plan B' if I ever have an issue with the flex plate. When it arrived (yesterday, after everyone was gone), I sat it on top of my (cracked) flex plate, and it's almost an inch smaller in diameter. The mounting holes in the center seem to line up properly. I remember reading about milling the drive plate to move the starter .2" closer to the engine, but I don't remember anything about the smaller diameter. So, my questions: Did I purchase the wrong item, would I simply make my starter cutout in the plate closer to the centerline to account for the smaller diameter, or was the flywheel mis-represented?If it's not the described item, I need to send it back, but I don't want to bother the seller if I simply bought the wrong flywheel.Thanks,Charlie
<AL flywheel.JPG>
--Homepage: http://www.flyrotary.com/Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html
No virus found in this message.Checked by AVG - www.avg.comVersion: 2014.0.4592 / Virus Database: 3950/7529 - Release Date: 05/20/14