X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) From: "Le Roux Breytenbach breytenbachleroux@gmail.com" Received: from mail-ed1-f45.google.com ([209.85.208.45] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 1425930 for flyrotary@lancaironline.net; Tue, 20 Apr 2021 16:23:44 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.208.45; envelope-from=breytenbachleroux@gmail.com Received: by mail-ed1-f45.google.com with SMTP id e7so46554208edu.10 for ; Tue, 20 Apr 2021 13:23:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=content-transfer-encoding:from:mime-version:subject:date:message-id :references:in-reply-to:to; bh=ToqSWsZcrm5/VYw3gA4hVgft9WoIva1DQwlJm2iXHvk=; b=kn357IGAI8l1SVeEwpIybMmPeR+NxaazNUrr4cQ+CZ3AkJGVQE0dzhZLTXqi9zHfk+ kvSMu80V+li8gfiuYyB98ko4pHedtJCXVR5WBgETWR1x9Rs6pdMf23LYAUaCT4FL5fJx 5uI01/olja7vmyvybb6Eg2MkJUf2UU4dXC6Hsg+vaik7dcygHrY+AW7q9S6ppzOVaFV8 r7ZOYRD5AX2I+uYehCqYsr3OaE2ePYqKF36QvFZCfK98aLIVgEu5rRPnWRfNZKjyC/2n it6jE9Wwm9VbOXkj1JTOE70X+p3BbzVWrI32W9rL9FrERX1su6iI2yQlo+stzS9wHvFp uYIA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:from:mime-version :subject:date:message-id:references:in-reply-to:to; bh=ToqSWsZcrm5/VYw3gA4hVgft9WoIva1DQwlJm2iXHvk=; b=ToCLp/To7LpSfgDfEfe+hNBHw83wTaTE7FMnbYxVvnEAVjbo1TTnoKc1pByhTW/6wS ZffRYUYZ1c0uD91sSoJdksW3ycxERIWgfFBYe4g6ts/vPYqrzAznwD/sya+aiZWc3XA1 EAX+Dj5QpW+CMz/WhCfK6jmNPumUb8VlFmX+0Kv5Sjizt7i/MxcOhz3lFkn469PaRIhs M+gKn5KfWNAGWRQs3TT5FHqFUN58NVPVX9p7E1jZvWNT3tj8h968CwTyPCn5uiTA94sk zOLuDzrS/Une3lbqEKcAr5K+swKh+mqLdnFQHvddx8RhmMD6nh1PonoQYGTCabVPV5Mk +OYw== X-Gm-Message-State: AOAM531xHYKrQ+yD7xp1YQTqbEnzXIbv4iv/MD3qs47NNR01PgLKHgmc ohcU66BvQn70qoIgxID+KQqaoRw7B3s= X-Google-Smtp-Source: ABdhPJwbk+iLkvorX+qxbdNCqFvxv4LllShDNUeCE+NoxoPxzFjn1bt6Kv+4GBqMKBSRfzc2PjT+Tg== X-Received: by 2002:a05:6402:c:: with SMTP id d12mr33814019edu.100.1618950206559; Tue, 20 Apr 2021 13:23:26 -0700 (PDT) Return-Path: Received: from [192.168.1.116] ([160.226.139.191]) by smtp.gmail.com with ESMTPSA id s9sm153185edd.16.2021.04.20.13.23.25 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 20 Apr 2021 13:23:26 -0700 (PDT) Content-Type: multipart/alternative; boundary=Apple-Mail-B0ADBE8E-78B0-4D9E-9422-2368F282AB6B Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) Subject: Re: Injector Holder Bracket Date: Tue, 20 Apr 2021 22:23:23 +0200 Message-Id: <90BBBEA8-87EB-4AD5-9451-0A1DEB5CBCE4@gmail.com> References: In-Reply-To: To: Rotary motors in aircraft X-Mailer: iPhone Mail (17H35) --Apple-Mail-B0ADBE8E-78B0-4D9E-9422-2368F282AB6B Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Matt: Yes from what i have read is that the best angle for injectors is more= or less 68* longitudinal with the airflow. The total length for a p-port runner should be between 21 and 28 inch i beli= eve. (13 B) My guess is that the =E2=80=9Csweet spot=E2=80=9D for placing the injectors w= ould be around 10 inch from the rotary face.The fuel injection pressure and i= njector size also matters. The better the pressure round 43.5 psi the optimum droplet size for specific= injectors and the nearest to its design flo rate. The billet speed injector weld on =E2=80=9Cbungs=E2=80=9D should work fine.A= nd flexible high pressure injector fuel line can be use and simplify the pre= scision mounting of fuel rails. Maybe Lynn H. must answer us here as from his racing experience and engine b= uilding. As he also says =E2=80=9C i could be wrong =E2=80=9C Regards Le Roux Sent from my iPhone Le Roux Breytenbach=20 > On 20 Apr 2021, at 17:16, Matt Boiteau mattboiteau@gmail.com wrote: >=20 > =EF=BB=BF > I painfully struggled with the aluminum blocks that Paul designed for the P= -port tubes. Buying the drill bit for the top, the fuel log rail, drilling t= hem to match, then trying to get them to mate / lock down without spilling f= uel everywhere. (Plus the welders hourly rate). Spent easily over $600 :(=20= >=20 > My next intake will definitely use something like billet speed. Let me kno= w how it goes.=20 >=20 > I know nothing about this, but do you want the injectors at the start of t= he intake runners, to give it a long time to mix with the air? Since we aren= 't looking for quick acceleration (injectors closer to combustion) and more l= ong term cruising MPG benefits.=20 >=20 > - Matt Boiteau >=20 >=20 >> On Fri, Feb 12, 2021 at 7:28 AM Le Roux Breytenbach breytenbachleroux@gma= il.com wrote: >> Has purchase these injector holder brackets, to weld on the 2 intake runn= ers (P-Port runners) >> 2 injectors per intake >>=20 >> billet-speed.com >>=20 >>=20 >> Injector Holder Bracket.jpeg >>=20 >>=20 >> Weld on boss.jpeg >>=20 >> What i have read online ( RX 8 clubs) is that correct angle for injectors= on the intake runners is between 45-68 degree's. with the velocity airflow.= >>=20 >> Any comments and tips for welding on these (boss bung) brackets for best p= erformance? >>=20 >> Le Roux >>=20 >> =20 --Apple-Mail-B0ADBE8E-78B0-4D9E-9422-2368F282AB6B Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable Matt: Yes from what i have read is that the= best angle for injectors is more or less 68* longitudinal with the air= flow.
The total length for a p-port runner should be between 21 and 28 i= nch i believe. (13 B)
My guess is that the =E2=80=9Csweet spot=E2=80= =9D for placing the injectors would be around 10 inch from the rotary face.T= he fuel injection pressure and injector size also matters.
The bet= ter the pressure round 43.5 psi the optimum droplet size for specific inject= ors and the nearest to its design flo rate.

The bil= let speed injector weld on =E2=80=9Cbungs=E2=80=9D should work fine.And flex= ible high pressure injector fuel line can be use and simplify the prescision= mounting of fuel rails.

Maybe Lynn H. must answer u= s here as from his racing experience and engine building.
As he al= so says =E2=80=9C i could be wrong =E2=80=9C

Regard= s Le Roux





Sent from my iPhone
Le Roux Breytenbach 
<= div dir=3D"ltr">
On 20 Apr 2021, at 17:16, Matt= Boiteau mattboiteau@gmail.com <flyrotary@lancaironline.net> wrote:
=EF=BB=BF=
I painfully struggled with the aluminum blocks that Paul de= signed for the P-port tubes. Buying the drill bit for the top, the fuel log r= ail, drilling them to match, then trying to get them to mate / lock down wit= hout spilling fuel everywhere. (Plus the welders hourly rate). Spent easily o= ver $600 :(

My next intake will definitely use something l= ike billet speed. Let me know how it goes. 

I know nothing about= this, but do you want the injectors at the start of the intake runners, to g= ive it a long time to mix with the air? Since we aren't looking for quick ac= celeration (injectors closer to combustion) and more long term cruising MPG b= enefits. 

- Matt Boiteau


On Fri, Feb 12, 2021 at 7= :28 AM Le Roux Breytenbach br= eytenbachleroux@gmail.com <flyrotary@lancaironline.net> wrote:
Has purchase these injector ho= lder brackets, to weld on the 2 intake runners (P-Port runners)
2 inject= ors per intake





 Weld on boss.jpeg
What i have read online ( RX 8 clubs) is that correct ang= le for injectors on the intake runners is between 45-68 degree's. with the v= elocity airflow.

Any comments and tips for weld= ing on these (boss bung) brackets for best performance?

=
Le Roux

 
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