Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Wed, 20 Apr 2005 08:26:59 -0400 Message-ID: X-Original-Return-Path: Received: from mxsf15.cluster1.charter.net ([209.225.28.215] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 883970 for lml@lancaironline.net; Tue, 19 Apr 2005 17:00:14 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.225.28.215; envelope-from=troneill@charter.net Received: from mxip12.cluster1.charter.net (mxip12a.cluster1.charter.net [209.225.28.142]) by mxsf15.cluster1.charter.net (8.12.11/8.12.11) with ESMTP id j3JKxTNd012484 for ; Tue, 19 Apr 2005 16:59:29 -0400 Received: from sc3-24.217.135.192.charter-stl.com (HELO axs) (24.217.135.192) by mxip12.cluster1.charter.net with ESMTP; 19 Apr 2005 16:59:29 -0400 X-Ironport-AV: i="3.92,114,1112587200"; d="scan'217,208"; a="1080980643:sNHT41597068" Received: from 127.0.0.1 (AVG SMTP 7.0.308 [266.9.17]); Tue, 19 Apr 2005 15:59:29 -0500 X-Original-Message-ID: <002501c54522$ad7a86a0$6501a8c0@axs> From: "terrence o'neill" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: supershargers X-Original-Date: Tue, 19 Apr 2005 15:59:29 -0500 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=======AVGMAIL-426571311D94=======" --=======AVGMAIL-426571311D94======= Content-Type: multipart/alternative; boundary="----=_NextPart_000_0022_01C544F8.C490A880" ------=_NextPart_000_0022_01C544F8.C490A880 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Thanks, Craig. I'm thinking of a centrifugal type for an experimental airplamne with a = 320 ci engine that only turns 2700 rpm. Using your numbers and diving = for the rpm and the 1.7:1 pressure ratio cifference, it looks like maybe = 20-30 hp to drive the blower. The problem is finding one that will do the job at less than 50,000 rpm. = M ost of the car-installations get to ramp up rpm from a crank turning = around 5400. I guess the old-time Indy blowers could develop the pressure radio for = this displacement while spinning maybe 30,000. =20 I want to belt-drive the blower without an intermediate shaft. Know of = any blower installations that do that? Thanks, Terrence ------=_NextPart_000_0022_01C544F8.C490A880 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable

Thanks, Craig.

I'm thinking of a centrifugal type for = an=20 experimental airplamne with a 320 ci engine that only turns 2700 = rpm. =20 Using your numbers and diving for the rpm and the 1.7:1 pressure ratio=20 cifference, it looks like maybe 20-30 hp to drive the = blower.

The problem is finding one that will do = the job at=20 less than 50,000 rpm. M ost of the car-installations get to ramp = up rpm=20 from a crank turning around 5400.

I guess the old-time Indy blowers could = develop the=20 pressure radio for this displacement while spinning maybe 30,000. =20

I want to belt-drive the blower without an intermediate = shaft. Know=20 of any blower installations that do that?

Thanks,
Terrence

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