Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Mon, 03 Jan 2005 20:02:57 -0500 Message-ID: X-Original-Return-Path: Received: from imo-m26.mx.aol.com ([64.12.137.7] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 590198 for lml@lancaironline.net; Mon, 03 Jan 2005 13:41:38 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.7; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-m26.mx.aol.com (mail_out_v37_r3.8.) id q.55.69d05ee0 (3924); Mon, 3 Jan 2005 13:41:00 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: <55.69d05ee0.2f0aebbb@aol.com> X-Original-Date: Mon, 3 Jan 2005 13:40:59 EST Subject: Sort of Off Topic - Some ways that piston engines differ! X-Original-To: lml@lancaironline.net X-Original-CC: Cozyone2@aol.com MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1104777659" X-Mailer: 9.0 Security Edition for Windows sub 5000 -------------------------------1104777659 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en =20 There are so many ways to skin a cat =E2=80=93 Here=E2=80=99s a BMW way:=20 The V-12 engine is an all-aluminum 6.0-liter rated for 400 horsepower.=20 Figures are not yet available, but Purves said =E2=80=9Cthis new 12-cylinde= r features BMW=E2=80=99 s innovative Valvetronic technology, which helps achieve remarkable fuel=20 economy.=E2=80=9D =20 Valvetronic allows for infinitely variable intake valve stroke, or lift,=20 which is the amount the valves open. This design completely does away with=20= the=20 butterfly valve found in the air intake stream of almost all engines. The V= -12=20 is also BMW=E2=80=99s first direct-injection gasoline (DIG) engine, in whic= h the=20 fuel injectors squirt gas directly into the combustion chambers rather than= =20 immediately outside the intake valve or farther up the air intake stream. D= irect=20 injection provides for even more precise fuel metering than does sequential= =20 port fuel injection. This fuel-injection design, combined with Valvetronic=20= and=20 BMW=E2=80=99s Double-VANOS continuously variable valve timing, results in g= reater=20 control over efficiency and emissions than ever before in a BMW.=20 Hmmmmm, does that mean each of the 12 intake valves must open exactly the=20 same amount to equalize the power produced by each cylinder or perhaps it i= s=20 not important when you are using 12 cylinders. Also, so much for modern=20 engines using the intake valves for vaporizing the fuel.=20 Here is some interesting info on a high revving (yeah, two "v"s look like a= =20 "w") engine: =20 _http://motorcyclistonline.com/newsandupdates/honda05/_=20 (http://motorcyclistonline.com/newsandupdates/honda05/) =20 Part of CBR600RR details =E2=80=93 interesting on what can be done to an en= gine:=20 =C2=B7 New intake port shape and redesigned exhaust for lighter weight and= =20 increased mid-range power. =20 =C2=B7 New piston surface treatment for reduced friction. =20 =C2=B7 Fuel injection flow increased to match intake and exhaust system ch= anges.=20 =20 Unique features: =20 =C2=B7 Dual Stage Fuel Injection (DSFI) system features two injectors per=20 cylinder. =20 =C2=B7 Liquid-cooled DOHC 16-valve 599cc four-stroke inline four-cylinder=20= engine=20 features oversquare bore and stroke of 67mm x 42.5mm. =20 =C2=B7 Iridium-tip spark plugs improve fuel combustion and performance. =20 =C2=B7 Dual Stage Fuel Injection system features two injectors per cylinde= r--one=20 upper and one lower--controlled by an ECU that senses rpm and throttle=20 opening. Lower injector enhances rideability while upper injector improves=20= top-end=20 horsepower. At lower rpm only the lower injector is working. Above 5500 rpm= =20 both injectors are activated. The system uses 40mm throttle bodies. =20 =C2=B7 Denso injectors with 12 holes per injector deliver a finely atomize= d fuel=20 mixture for optimum combustion efficiency and power. =20 =C2=B7 Auto enriching system is integrated into PGM-FI module, eliminating= the=20 need for a manual choke. =20 =C2=B7 Two-stage ram-air system provides a high volume of cool air to the=20= airbox=20 for linear power delivery and incredible engine performance. =20 =C2=B7 Cylinder head features angled valve inset to improve airflow. =20 =C2=B7 Cylinder head features two springs per intake valve and two springs= per=20 exhaust valve for optimum high-rpm valve operation and durability. =20 =C2=B7 Light pistons, piston pins and nutless connecting rods contribute t= o=20 higher-revving engine. =20 =C2=B7 Pistons receive new moly surface treatment for reduced friction. =20 =C2=B7 Lightweight aluminum oil cooler.=20 Worth reading for comparison purposes =E2=80=93 just another injection sys= tem -=20 read all of it if you are not bored by now, including definitions:=20 _http://www.icbm.org/erkson/ttt/engine/fuel_injection/d-jet.html_=20 (http://www.icbm.org/erkson/ttt/engine/fuel_injection/d-jet.html) =20 Hey, if you are running one of those new diesel aircraft engines, take a=20 look at the mid page of this pdf for a propane injection system to deliver=20= more=20 Torque/HP so you can race at Reno with your barbeque propane tank in the bac= k =20 of your "bomb."=20 _http://www.msdignition.com/pdf/2005-MSD-npp.pdf_=20 (http://www.msdignition.com/pdf/2005-MSD-npp.pdf) =20 So many possibilities, so little time! =20 Scott Krueger AKA Grayhawk Lancair N92EX IO320 Aurora, IL (KARR) -------------------------------1104777659 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en

There are so many ways to= skin a=20 cat =E2=80=93 Here=E2=80=99s a BMW way:

 

The V-12 engine is an=20 all-aluminum 6.0-liter rated for 400 horsepower. Figures are not yet availab= le,=20 but Purves said =E2=80=9Cthis new 12-cylinder features BMW=E2=80=99s innovat= ive Valvetronic=20 technology, which helps achieve remarkable fuel economy.=E2=80=9D

 

Valvetronic allows for in= finitely=20 variable intake valve stroke, or lift, which is the amount the valves open.=20= This=20 design completely does away with the butterfly valve found in the air intake= =20 stream of almost all engines. The V-12 is also BMW=E2=80=99s first direct-in= jection=20 gasoline (DIG) engine, in which the fuel injectors squirt gas directly into=20= the=20 combustion chambers rather than immediately outside the intake valve or fart= her=20 up the air intake stream. Direct injection provides for even more precise fu= el=20 metering than does sequential port fuel injection. This fuel-injection desig= n,=20 combined with Valvetronic and BMW=E2=80=99s Double-VANOS continuously variab= le valve=20 timing, results in greater control over efficiency and emissions than ever=20 before in a BMW.

 

Hmmmmm, does that me= an each=20 of the 12 intake valves must open exactly the same amount to equalize the po= wer=20 produced by each cylinder or perhaps it is not important when you are using=20= 12=20 cylinders.  Also, so much for modern engines using the intake valves fo= r=20 vaporizing the fuel.

 

 

Here is some interes= ting=20 info on a high revving (yeah, two "v"s look like a "w") engine: <= /P>

 

http://motorc= yclistonline.com/newsandupdates/honda05/

 

Part of CBR600RR details=20= =E2=80=93=20 interesting on what can be done to an engine:

 

=C2=B7  New=20 intake port shape and redesigned exhaust for lighter weight and increased=20 mid-range power.

=C2=B7  New=20 piston surface treatment for reduced friction.

=C2=B7  Fuel=20 injection flow increased to match intake and exhaust system changes.=20

Unique=20 features:

=C2=B7  Dual=20 Stage Fuel Injection (DSFI) system features two injectors per cylinder.=20

=C2=B7  Liquid-cooled=20 DOHC 16-valve 599cc four-stroke inline four-cylinder engine features oversqu= are=20 bore and stroke of 67mm x 42.5mm.

=C2=B7  Iridium-tip=20 spark plugs improve fuel combustion and performance.

=C2=B7  Dual=20 Stage Fuel Injection system features two injectors per cylinder--one upper a= nd=20 one lower--controlled by an ECU that senses rpm and throttle opening. Lower=20 injector enhances rideability while upper injector improves top-end horsepow= er.=20 At lower rpm only the lower injector is working. Above 5500 rpm both injecto= rs=20 are activated. The system uses 40mm throttle bodies.

=C2=B7  Denso=20 injectors with 12 holes per injector deliver a finely atomized fuel mixture=20= for=20 optimum combustion efficiency and power.

=C2=B7  Auto=20 enriching system is integrated into PGM-FI module, eliminating the need for=20= a=20 manual choke.

=C2=B7  Two-stage=20 ram-air system provides a high volume of cool air to the airbox for linear p= ower=20 delivery and incredible engine performance.

=C2=B7  Cylinder=20 head features angled valve inset to improve airflow.

=C2=B7  Cylinder=20 head features two springs per intake valve and two springs per exhaust valve= for=20 optimum high-rpm valve operation and durability.

=C2=B7  Light=20 pistons, piston pins and nutless connecting rods contribute to higher-revvin= g=20 engine.

=C2=B7  Pistons=20 receive new moly surface treatment for reduced friction. <= /P>

=C2=B7  Lightweight=20 aluminum oil cooler.

 

 

Worth=20 reading for comparison purposes =E2=80=93  just another injection syste= m - read all=20 of it if you are not bored by now, including=20 definitions:

 

htt= p://www.icbm.org/erkson/ttt/engine/fuel_injection/d-jet.html

 

 

Hey, if you are running o= ne of=20 those new diesel aircraft engines, take a look at the mid page of this pdf f= or a=20 propane injection system to deliver more Torque/HP so you can race at Reno with your barbeque propane tank in t= he back=20 of your "bomb."

 

http://www.msdignit= ion.com/pdf/2005-MSD-npp.pdf

 

 

 

So many possibilities, so= little=20 time! 

 

 
Scott Krueger=20 AKA Grayhawk
Lancair N92EX IO320 Aurora, IL=20 (KARR)

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