X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fg-out-1718.google.com ([72.14.220.157] verified) by logan.com (CommuniGate Pro SMTP 5.2.3) with ESMTP id 2958292 for flyrotary@lancaironline.net; Sun, 08 Jun 2008 01:46:44 -0400 Received-SPF: pass receiver=logan.com; client-ip=72.14.220.157; envelope-from=lehanover@gmail.com Received: by fg-out-1718.google.com with SMTP id 22so1157110fge.1 for ; Sat, 07 Jun 2008 22:46:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:mime-version:content-type; bh=k0Q114jfhbeW7q6YxklLuZFHS6T2Vn0w/jvHgSTYK2w=; b=Ri0hf4He7O+yPl5hCWyk/7J+ImyEvF8CkCsf3Nyu5EmiSMwjfz8NZN4z0LJsLgfDY4 hUuKw6Fg2N36jvAzWTy3QJl+HISBiG4yyrnJyZkVc6BrSt9WnSKBVmIPkb7tmwB9Wdgm rOQ5RCiRCd5hiQm1rNenB8+ANt7yQw6SQS/40= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type; b=bCEVqxlU8+azlQTgKmnLZvwffIWFfaRdOaqkkELcN0vqmpWShlC31xGikt81IwtLgl AwLvJq9PZbFWjVMweOPFHgCwgfOYrt8MpziAO0UvkcFd355UJX6KLN2Cm2GyN0Bljr1r qhB/hNMbD7SH0w/JF1E6TvxIfadbLziKeS0UM= Received: by 10.78.138.6 with SMTP id l6mr1022672hud.41.1212903965095; Sat, 07 Jun 2008 22:46:05 -0700 (PDT) Received: by 10.78.170.2 with HTTP; Sat, 7 Jun 2008 22:46:05 -0700 (PDT) Message-ID: <1ab24f410806072246m38ba8b0aj864438609ef9f170@mail.gmail.com> Date: Sun, 8 Jun 2008 01:46:05 -0400 From: "Lynn Hanover" To: flyrotary@lancaironline.net Subject: Ceramic apex seals MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_108_11000994.1212903965092" ------=_Part_108_11000994.1212903965092 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline There are one piece carbon / aluminum seals, not too expensive, great for racing. Good sealing never hurt the rotor housings. Can handle some boost. Very light and can do monster revs over 10,000 RPM. You have to be a memebr of the Mazda competition program and provide pictures of your race car and finish sheets from a number of events. The very best are ceramic one piece seals. Scary light. Strong enough for high boost. Not affected by engine over temps or detonation. Run with two springs for tracking at scalding high revs and still have less drag than stock or carbon seals. No downside until you try to buy them. About $330.00 each seal, (you need 6). This is a bolt on 6 HP just from reduced drag. No rotor housing wear. From Mazda comp. and after market vendors. Carbon as well. Lynn E. Hanover Newbie Question---for the "normal"13B NA engine, how do the ceramic apex seals compare with the other types of seals you all are using? (I've*rarely *ever read anything about their use in this forum.) Paul Vermillion ------=_Part_108_11000994.1212903965092 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline
 
There are one piece carbon / aluminum seals, not too expensive, great for racing. Good sealing
never hurt the rotor housings. Can handle some boost. Very light and can do monster revs over 10,000 RPM. You have to be a memebr of the Mazda competition program and provide pictures of your race car and finish sheets from a number of events.
 
The very best are ceramic one piece seals. Scary light. Strong enough for high boost. Not affected by engine over temps or detonation. Run with two springs for tracking at scalding high revs and still have less drag than stock or carbon seals. No downside until you try to buy them.
About $330.00 each seal, (you need 6). This is a bolt on 6 HP just from reduced drag. No rotor housing wear. From Mazda comp. and after market vendors. Carbon as well.
 
Lynn E. Hanover 
 
Newbie Question---for the "normal"13B NA engine, how do the ceramic  apex seals compare with the other types of seals you all are using?  (I've rarely ever read anything about their use in this forum.)

 

Paul Vermillion

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