Return-Path: Received: from mtiwmhc11.worldnet.att.net ([204.127.131.115] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 829703 for flyrotary@lancaironline.net; Wed, 30 Mar 2005 08:57:17 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.131.115; envelope-from=keltro@att.net Received: from 204.127.135.40 ([204.127.135.40]) by worldnet.att.net (mtiwmhc11) with SMTP id <20050330135628111000cuoqe>; Wed, 30 Mar 2005 13:56:28 +0000 Received: from [209.247.222.111] by 204.127.135.40; Wed, 30 Mar 2005 13:56:27 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] under drive pulleys Date: Wed, 30 Mar 2005 13:56:27 +0000 Message-Id: <033020051356.5074.424AB00B00033261000013D22160280748019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Feb 14 2005) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_5074_1112190987_0" --NextPart_Webmail_9m3u9jl4l_5074_1112190987_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Kevin, Sounds like a really good deal.........Does your friend hard anodize his pulleys to minimize wear........Also is his eccentric shaft pulley a total replacement like the "Racing Beat" pulley or does it bolt to the stock Mazda hub ?? -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from "kevin lane" : -------------- I spoke with a machine shop friend today about making pulleys. He shows me his Mazda race car with a 400hp PP 13B, which I didn't know he had. He believes that a single pulley with a deep groove should work fine, and that yes, often one belt will take out the redundant belt. He runs his engine up to 9800rpm without belt problems. His pulleys are 5 1/8 on the water pump, 3 1/2 drive, which just about touch. He can make us sets for $110, a bit more for double pulleys. He has an automatic tool changing mill with something like 27 tools available on this giant chain. It is way cool to watch run. Pulleys get made on the lathe however. AL comes in 5 and 5 1/2" sizes, so a 5" pulley may be a better buy than 5 1/8". He would make the pulleys to order, not as batches, so a 17 or 19mm center hole is no problem. I wondered how many people were interested in getting some made. I have not seen any for sale at these prices, although I may have missed some. I saw some sets as high as $350. Kevin Lane Portland, OR e-mail-> n3773@comcast.net --NextPart_Webmail_9m3u9jl4l_5074_1112190987_0 Content-Type: text/html Content-Transfer-Encoding: 8bit

Kevin,

Sounds like a really good deal.........Does your friend hard anodize his

pulleys to minimize wear........Also is his eccentric shaft pulley a total

replacement like the "Racing Beat" pulley or does it bolt to the stock

Mazda hub ??

--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2

-------------- Original message from "kevin lane" <n3773@comcast.net>: --------------

I spoke with a machine shop friend today about making pulleys. He shows me his Mazda race car with a 400hp PP 13B, which I didn't know he had. He believes that a single pulley with a deep groove should work fine, and that yes, often one belt will take out the redundant belt. He runs his engine up to 9800rpm without belt problems. His pulleys are 5 1/8 on the water pump, 3 1/2 drive, which just about touch. He can make us sets for $110, a bit more for double pulleys. He has an automatic tool changing mill with something like 27 tools available on this giant chain. It is way cool to watch run. Pulleys get made on the lathe however. AL comes in 5 and 5 1/2" sizes, so a 5" pulley may be a better buy than 5 1/8". He would make the pulleys to order, not as batches, so a 17 or 19mm center hole is no problem. I wondered how many people were interested in getting some made. I have not seen any for sale at these prices, although I may have missed some. I saw some sets as high as $350.

Kevin Lane Portland, OR
e-mail-> n3773@comcast.net

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