Return-Path: Received: from fed1rmmtao09.cox.net ([68.230.241.30] verified) by logan.com (CommuniGate Pro SMTP 4.2b3) with ESMTP id 3220034 for flyrotary@lancaironline.net; Fri, 07 May 2004 10:50:18 -0400 Received: from BigAl ([68.107.116.221]) by fed1rmmtao09.cox.net (InterMail vM.6.01.03.02 201-2131-111-104-20040324) with ESMTP id <20040507145017.LMHK19329.fed1rmmtao09.cox.net@BigAl> for ; Fri, 7 May 2004 10:50:17 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] fuel injector prices Date: Fri, 7 May 2004 07:50:17 -0700 Message-ID: <001501c43442$9cc33060$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0016_01C43407.F0645860" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0016_01C43407.F0645860 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: [FlyRotary] fuel injector prices =20 =20 Some folks say bigger is better; others say size doesn't matter - but = the reason we use the 550 cc/min injectors is because they come with the = engine, and replacements are very spendy. Al =20 -------------------------------------------------------------------- Take a look in the Mustang magazines: 38 and 42 lb injectors sell for between $295 and $395 for a set of eight. So call it $200 for a set of = 4 if you split the costs with someone else. Brands vary, but are usually = Bosch. I'm going to start with 38 lb injectors at 38 PSI - should be good for = about 230 HP at 80% duty cycle and 0.5 BSFC. Would also be good for ~245 HP = at 44 psi. Note that if NA these will not be working very hard at cruise altitudes. If turbo I would probably go with the 42's just to keep the = duty cycle a little lower. =20 Ken P. =20 I was referring to injectors that fit the stock primary fuel rail. As I understand it you are pretty much limited to the Mazda (Nippon-Denzo, I believe) injectors, and they are over $200 each, and the 20B needs = three. I have 50 lb/hr (made by Rochester) in the secondary rail that were only = $49 each. =20 Al ------=_NextPart_000_0016_01C43407.F0645860 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Subject: [FlyRotary] fuel injector prices

 

 

Some folks say bigger is better; others say size doesn’t matter – = but the reason we use the 550 cc/min injectors is because they come with the engine, and replacements are very spendy. Al

 

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Take a look in the Mustang magazines:  38 and 42 lb injectors sell for = between $295 and $395 for a set of eight.  So call it $200 for a set of 4 = if you split the costs with someone else.  Brands vary, but are usually Bosch.  I'm going to start with 38 lb injectors at 38 PSI - should = be good for about 230 HP at 80% duty cycle and 0.5 BSFC.  Would also be = good for ~245 HP at 44 psi.  Note that if NA these will not be working very = hard at cruise altitudes.  If turbo I would probably go with the 42's just = to keep the duty cycle a little lower.

 

Ken P.

 

I was = referring to injectors that fit the stock primary fuel rail.  As I understand it = you are pretty much limited to the Mazda (Nippon-Denzo, I believe) = injectors, and they are over $200 each, and the 20B needs three.  I have 50 lb/hr = (made by Rochester) in the secondary rail that = were only $49 each.

 <= /font>

Al

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