On 20 Oct 2021, at 12:15 am, David Leonard wdleonard@gmail.com <flyrotary@lancaironline.net> wrote:

I used one of these:

https://throtl.com/products/act-xact-streetlite-flywheels-act600145?cq_src=google_ads&cq_cmp=10870770605&cq_term=&cq_med=&cq_plt=gp&gclid=CjwKCAjw2bmLBhBREiwAZ6ugo8jSPo2ktPDdU8xZsTdN80Wbg0xZNiX6JQWuXpJkC7J3DV5b8bs6xRoCeroQAvD_BwE

I mounted the RWS damper plate.  I had to take it to a CNC shop to take down the face and locate the mounting holes.  I also had to modify the mounting of the starter, but it was a pretty easy job.

Neil, great job on getting your gear-box into production.  We sure need it.

Dave Leonard

On Sat, Oct 16, 2021 at 3:48 PM Pam & Dave Williams padajute@idcnet.com <flyrotary@lancaironline.net> wrote:

Hello James,

 

I have a stock 13b ( estimated 150 hp) with RWS equipment. I used a racing aluminum flywheel and removed the steel clutch facing. Then I resized the RWS splined hub to fit. Basically I copied RWS by making a new plate and riveting on the RWS splined hub to my new plate. Because the new plate is a smaller OD I used 6 bolts instead of 4. I used the same durometer rubber cushions.

 

Thanks,

Dave Williams

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Friday, October 15, 2021 6:27 PM
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: flex plate

 

Dave, do you have a recommendation for a lightweight flywheel and flexplate/ damper (brand or type) for a 250hp 13b? Thanks, James Whitehurst

 

On Fri, Oct 15, 2021, 12:27 David Leonard wdleonard@gmail.com <flyrotary@lancaironline.net> wrote:

But you should know that those are prone to cracking, and I had a catastrophic failure of one.  They were never designed to carry the output load of the engine, just as a way to engage the starter.  Tracey published a revision in the archives, or you can convert a manual fly wheel to work.  I suggest lightweight aftermarket versions.

 

Dave Leonard

 

On Thu, Oct 14, 2021 at 2:09 PM 12348ung@gmail.com <flyrotary@lancaironline.net> wrote:

Thought so, thanks

 

From: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Friday, October 15, 2021 8:06 AM
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: flex plate

 

AUTOMATIC

 

On Thu, Oct 14, 2021, 4:04 PM 12348ung@gmail.com <flyrotary@lancaironline.net> wrote:

Can anyone confirm which flex plate fits the RWS redrive?  I believe it comes from a 92 model RX7. But is it from an automatic, manual or turbo model?  All are different apparently.

Thanks  Neil.