A friend of mine sent me this link.

http://www.goopyperformance.com/

I would be skeptical of the apex seals
and rotor housing refurbishment but
some of the special tools look useful.

Good Apex seals are hard to make and must be
made from a special cast iron. Most after market
guys use steel which is real hard on rotor
housings.  Iannetti ceramic seals are the best.
Francesco Iannetti <iannetti@pop.mindspring.com>

Read this first before you risk your expensive
rotor housings.

http://www.rotaryeng.net/seals.html

Paul Lamar

Hmmmm?

I would question a lot of things about these, but they did catch my attention.

ceramic apex seal set for $750.00

http://cgi.ebay.com/ebaymotors/New-13B-2mm-Ceramic-Apex-Seals-Springs-set-6-/320217510248?pt=Motors_Car_Truck_Parts_Accessories&hash=item4a8e737168


http://tinyurl.com/26jx4vt

Chris Barber

Houston


I agree.

The problem with this stuff is you risk destroying an engine to test
them.

We almost ruined a set of rotor housings with some after market
apex seals. The first clue was when we checked the compression
right after rebuilding. It was down 10% from a new engine with
Mazda apex seals. Fortunately we had to tear it down because
of a p-port leak after only 30 minutes of running. I could not
believe the damage to the new rotor housings.

DO NOT buy after market apex seals.

Paul Lamar