Answer to my question about rpm testing of the "ACT" forged chrome/moly flywheels
that have filled the forum for several days..............
Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo
----- Forwarded Message -----
From: Dirk Starksen <dstarksen@advancedclutch.com>
To: Kelly Troyer <keltro@att.net>
Cc: Tech <Tech@advancedclutch.com>
Sent: Tuesday, July 19, 2011 2:42 PM
Subject: RE: flywheel rpm testig
Kelly,
We don’t spin test every flywheel configuration we make since we meet the SFI specifications for material properties rather than burst tests. I can confidently say that the flywheel will withstand 15,000 rpm easily so burst rpm hasn’t been a concern. The cover of the pressure plate will fail long before the flywheel and the pressure plates we have burst tested (see attached photos). We certify the pressure plates to 8700 rpm for the pull type and 9500 for the push type 240mm RX7 pressure plates. Per the SFI specifications, which require a minimum 50% RPM allowance for safety, the covers were able to withstand at least 13,050 and 14,250 rpm for one hour.
Dirk P. Starksen
President
Advanced Clutch Technology Inc.
PH: 661-940-7555 Ext. 111
Fax: 661-940-7541
From: Kelly Troyer [mailto:keltro@att.net]
Sent: 2011-07-18 01:31
To: Tech
Subject: flywheel rpm testig
What rpm are your flywheels tested to............I have a Mazda Rx # 600145 flywheel......