Honda Direct Fire Coils
Bob Wooten
r71chevy at earthlink.net
Thu Feb 22 07:53:35 GMT 2001
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The cool factor VERY high indeed. I am thinking that there has to be
some kind of sensor to tell the CPU what plug to fire. maybe off of the
alternator?
BW
----- Original Message -----
From: James
Ballenger
To: diy_efi at diy-efi.org
Sent: 2/21/01 10:35:43 PM
Subject: RE: Honda Direct Fire Coils
Honda did something similar on some
new bike engines and these rev to 14,100 rpm. The problem I ran into with
my Haltech E6S is that I only had two outputs to control ignition which would be
very inefficient with these coils because two would fully fire at each tdc and
could cause problems. If you have 4 dedicated outputs and have a cam
sensor you can run them but they are expensive and by design less powerful than
the large coils of units outside the head. The cool factor is extremely
high though ;-) I just realized though that the 99' F4 runs coil per plug
and they have no cam sensor... hmmm.
http://planeta.clix.pt/cbr600f4/pics/600f4-12.jpg
http://planeta.clix.pt/cbr600f4/pics/600f4-25.jpg
James
Ballenger
-----Original Message-----
From: owner-diy_efi at diy-efi.org
[mailto:owner-diy_efi at diy-efi.org]On Behalf Of Chris
Capowski
Sent: Wednesday, February 21, 2001 10:14 PM
To:
DIY_EFI
Subject: Honda Direct Fire Coils
All this talk of wasted spark coil packs got me
thinking. I am thinking of trying to use Honda direct fire coils from an
S2000 on my race car (Honda 4 cyl, 10,000 RPM) They look like a long
(6") spark plug boot (if anyone hasn't seen them) and sit directly on the spark
plug. They also have a built in ignitor. The only terminals they
have is +,-, trigger and of course the connection to the plug. No idea
what kind of trigger input it is looking for, the service manual has absolutely
nothing. I need to figure out if I can fire this with a Haltech IG6.
Anybody have any info on these types of
coils? I would really like to be able to use them as having no plug
wires means there is four less cheap parts that can break and end a
race (same reason why you wont find a single fuse in the car, and before
someone asks, yes, that includes any computer fuses)
Chris "Mighty Mouse"
Capowski
--- Bob Wooten
--- r71chevy at earthlink.net
--- www.r71camaro.homestead.com
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<DIV>The cool factor VERY high indeed. I am thinking that there has to be some kind of sensor to tell the CPU what plug to fire. maybe off of the alternator?</DIV>
<DIV> </DIV>
<DIV>BW</DIV>
<BLOCKQUOTE style="BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV style="FONT: 10pt Arial">----- Original Message ----- </DIV>
<DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A href="mailto:vtjballeng at yifan.net" title=vtjballeng at yifan.net>James Ballenger</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To: </B><A href="mailto:vtjballeng at yifan.net" title=vtjballeng at yifan.net>diy_efi at diy-efi.org</A></DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> 2/21/01 10:35:43 PM </DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Honda Direct Fire Coils</DIV>
<DIV><BR></DIV><FONT size=2>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=495431006-22022001> Honda did something similar on some new bike engines and these rev to 14,100 rpm. The problem I ran into with my Haltech E6S is that I only had two outputs to control ignition which would be very inefficient with these coils because two would fully fire at each tdc and could cause problems. If you have 4 dedicated outputs and have a cam sensor you can run them but they are expensive and by design less powerful than the large coils of units outside the head. The cool factor is extremely high though ;-) I just realized though that the 99' F4 runs coil per plug and they have no cam sensor... hmmm.</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=495431006-22022001></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=495431006-22022001><A href="http://planeta.clix.pt/cbr600f4/pics/600f4-12.jpg">http://planeta.clix.pt/cbr600f4/pics/600f4-12.jpg</A></SPAN></FONT></DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=495431006-22022001><A href="http://planeta.clix.pt/cbr600f4/pics/600f4-25.jpg">http://planeta.clix.pt/cbr600f4/pics/600f4-25.jpg</A></SPAN></FONT></DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=495431006-22022001></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff face=Arial size=2><SPAN class=495431006-22022001>James Ballenger</SPAN></FONT></DIV>
<BLOCKQUOTE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">
<DIV align=left class=OutlookMessageHeader dir=ltr><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]<B>On Behalf Of </B>Chris Capowski<BR><B>Sent:</B> Wednesday, February 21, 2001 10:14 PM<BR><B>To:</B> DIY_EFI<BR><B>Subject:</B> Honda Direct Fire Coils<BR><BR></DIV></FONT>
<DIV><FONT face=Arial size=2>All this talk of wasted spark coil packs got me thinking. I am thinking of trying to use Honda direct fire coils from an S2000 on my race car (Honda 4 cyl, 10,000 RPM) They look like a long (6") spark plug boot (if anyone hasn't seen them) and sit directly on the spark plug. They also have a built in ignitor. The only terminals they have is +,-, trigger and of course the connection to the plug. No idea what kind of trigger input it is looking for, the service manual has absolutely nothing. I need to figure out if I can fire this with a Haltech IG6. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Anybody have any info on these types of coils? I would really like to be able to use them as having no plug wires means there is four less cheap parts that can break and end a race (same reason why you wont find a single fuse in the car, and before someone asks, yes, that includes any computer fuses)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Chris "Mighty Mouse" Capowski</FONT></DIV></BLOCKQUOTE></FONT>
<P></P></BLOCKQUOTE>
<DIV> </DIV>
<DIV>--- Bob Wooten</DIV>
<DIV>--- <A href="mailto:r71chevy at earthlink.net">r71chevy at earthlink.net</A></DIV>
<DIV>--- <A href="http://www.r71camaro.homestead.com">www.r71camaro.homestead.com</A></DIV>
<DIV> </DIV>
<DIV> </DIV></BODY></HTML>
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