Return-Path: <13brv3@bellsouth.net> Received: from imf21aec.mail.bellsouth.net ([205.152.59.69] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 557614 for flyrotary@lancaironline.net; Mon, 06 Dec 2004 11:06:42 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.69; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf21aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20041206160606.XSSA2054.imf21aec.mail.bellsouth.net@rd> for ; Mon, 6 Dec 2004 11:06:06 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Spare injectors? (RWS feature requests) Date: Mon, 6 Dec 2004 10:06:06 -0600 Message-ID: <000001c4dbad$7e4e91c0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C4DB7B.33B421C0" 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 V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C4DB7B.33B421C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable > If I'm not mistaken, I have 2 of the 88 NA injectors listed below, as well as 4 of the 89-91 NA injectors. =20 I'm not sure on the part numbers. My primaries are purple 550s, fed from = the side. The secondaries are also purple 550's, but they're top fed. They = all have square connectors. If you could send me two of each I'll send them = back if they don't fit. John=20 =20 You're primaries sound like stock 3rd gen injectors, so you're going to = be out of luck swapping them with any 2nd gen parts. If your secondary injectors are as you describe, they must be 88 model turbo injectors, in which case the 88 model NA injectors I have should fit. =20 If you want, I will send you these, but I can tell you right now that = it's not what you want to do. Going to 460's only on your secondary won't = make enough mixture difference to even be noticeable. The only time you'll notice that you changed injectors is when you try to tune around the transition point with mismatching primaries/secondaries. You'll also = notice when you disable primaries at low power, because you'll have to fiddle = with the mixture. I cursed having mismatched injectors, but if you want yet another problem... :-) =20 BTW, where is your mixture problem occurring? The only place a "too = large" injector will hurt you is at very low power, such as idle. In that = case, it can't accurately open/close with the very narrow pulse width. At any = higher power setting, there should be no problem with larger injectors. I = never had any problems with 550 size injectors, except for idle, and the 460's didn't help that either. Lot's of 3rd gen RX-7 guys are running with 4- 1600 size injectors.=20 =20 If you still want to try them, I'll grab them the next time I go to the hanger. Actually, I need to get a storage building, and start moving = stuff out of the hanger. The county is starting the eviction process to allow = for repairs of the hangers. =20 =20 Rusty (too much crap to move out) ------=_NextPart_000_0001_01C4DB7B.33B421C0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
 > If I'm not = mistaken, I have 2=20 of the 88 NA injectors listed below, as well as 4 of the 89-91 NA=20 injectors.   
I'm not sure = on the part=20 numbers. My primaries are purple 550s, fed from the side. The = secondaries are=20 also purple 550's, but they're top fed. They all have square connectors. = If you=20 could send me two of each I'll send them back if they don't=20 fit.
John 
&nbs= p;
You're primaries sound = like stock=20 3rd gen injectors, so you're going to be out of luck swapping them with = any 2nd=20 gen parts.  If your secondary injectors are as you describe, they = must=20 be 88 model turbo injectors, in which case the 88 model NA = injectors I have=20 should fit.
&nbs= p;
If you want, I will = send you these,=20 but I can tell you right now that it's not what you want to do.  = Going to=20 460's only on your secondary won't make enough = mixture difference to=20 even be noticeable.  The only time you'll notice that you changed = injectors=20 is when you try to tune around the transition point with mismatching=20 primaries/secondaries.  You'll also notice when you disable = primaries=20 at low power, because you'll have to fiddle with the = mixture.   I=20 cursed having mismatched injectors, but if you want yet another = problem...=20 :-)
&nbs= p;
BTW, where is your = mixture problem=20 occurring?  The only place a "too large" injector will hurt you is = at very=20 low power, such as idle.  In that case, it can't accurately = open/close with=20 the very narrow pulse width.  At any higher power setting, there = should be=20 no problem with larger injectors.   I never had any problems = with 550=20 size injectors, except for idle, and the 460's didn't help that = either. =20 Lot's of 3rd gen RX-7 guys are running with 4- 1600 size=20 injectors. 
&nbs= p;
If you still want to = try them, I'll=20 grab them the next time I go to the hanger.  Actually, I need to = get a=20 storage building, and start moving stuff out of the hanger.  The = county is=20 starting the eviction process to allow for repairs of the hangers.  =
&nbs= p;
Rusty (too much crap to = move=20 out)
------=_NextPart_000_0001_01C4DB7B.33B421C0--