Detailed write up.... HOW TO DO A Coil On Plug CONVERSION
FYI, I will be building a new setup for a local car that will consist of 4 brand new Chrysler coils that are used very often in the dsm community (John Shepherd). These will be paired with 4 stock honda ignitors running a direct fire setup with a 1040 AEM EMS. I remember reading someone had success with this using the honda cbr coils, but fried the coils as they are very sensitive to dwell settings. I will post results later this week.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kcevo »</TD></TR><TR><TD CLASS="quote">FYI, I will be building a new setup for a local car that will consist of 4 brand new Chrysler coils that are used very often in the dsm community (John Shepherd). These will be paired with 4 stock honda ignitors running a direct fire setup with a 1040 AEM EMS. I remember reading someone had success with this using the honda cbr coils, but fried the coils as they are very sensitive to dwell settings. I will post results later this week.</TD></TR></TABLE>
I've ran a similar setup in my Camry which is running a Honda AEM EMS, but with Toyota Camry coils along with 3 Honda OEM ignitors (it's a V6 wasted spark setup). If you intend to keep the inductive ignition, it wouldn't work out every well. There just wasn't enough juice in the spark when using the Honda ignitor with the inductive setup. I did switch over to a Bosch ignitor and the spark was better but still isn't the best.
The problem was solved however after using a CDI ignition system and the car ran great. The car currently puts out close to 400WHP with an auto trans. You might want to factor in a CDI ignition for your new system
I've ran a similar setup in my Camry which is running a Honda AEM EMS, but with Toyota Camry coils along with 3 Honda OEM ignitors (it's a V6 wasted spark setup). If you intend to keep the inductive ignition, it wouldn't work out every well. There just wasn't enough juice in the spark when using the Honda ignitor with the inductive setup. I did switch over to a Bosch ignitor and the spark was better but still isn't the best.
The problem was solved however after using a CDI ignition system and the car ran great. The car currently puts out close to 400WHP with an auto trans. You might want to factor in a CDI ignition for your new system
That will be next season for sure, been down the CDI path with MSD's and AEM's setups and the only ones I will trust is the M&W, Autronic, or Motec CDI's. This car is still on stock sleeves and sort of a budget build for now to see if we can get in the 9's on it. I will actually be running this setup in a direct fire configuration so hopefully it will be a little better than what you experienced. Thanks for the info.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Paul_VR6 »</TD></TR><TR><TD CLASS="quote">VR sensors are great, but are VERY suseptible to noise...</TD></TR></TABLE>
Reading this thread, I don't think anyone commented yet that VR sensors "wind up" with increasing engine speed. They don't drift, as much as they shift. The basic elemet of a VR sensor introduces an inductive time constant into the generated voltage. What that means is real TDC is not indicated by a VR sensor TDC as engine speed increases.
Put an optical 360 degree encoder on a distributor, and run it on the test bench and you will see the shift.
Reading this thread, I don't think anyone commented yet that VR sensors "wind up" with increasing engine speed. They don't drift, as much as they shift. The basic elemet of a VR sensor introduces an inductive time constant into the generated voltage. What that means is real TDC is not indicated by a VR sensor TDC as engine speed increases.
Put an optical 360 degree encoder on a distributor, and run it on the test bench and you will see the shift.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h0ndavtec »</TD></TR><TR><TD CLASS="quote">com on guys i need some type of help with this non distributor thing. any ideas on that i can use that will keep my spark in timing</TD></TR></TABLE>
What do you need help with ???
What do you need help with ???
i am builoding a project car. its an 88 accord hatch with a b18a. the car was originally carbed so i am running dual sidedraft carbs. i dont plan on running an ecu. the car is already wired with an aftermarket hot rod style 21 circuit wire kit. i have an msd sci box and some cbr coils. i want to run a cop setup but i been to develop a way to get the coils to fire correctly with the timing. i am looking for something in can use in place of the distributior to trigger the coils
check this thread out. it should answer your question https://honda-tech.com/zerothread?id=1274466
http://putfile.com/pic.php?pic...s=x10


My H22 runs an H22 oil pump and ProDrive gear along with both of the factory crank sensors. Since i wanted to run cop i still needed a tdc cyl # 1 sensor. I also wanted it to be plug and play (no cam gear mods) so i designed this. The old zc/b20a exhaust cam sensor was modified on my lathe to mount on the new bracket.
Rodney, the owner of R&D Works, and his brother Darren whittled five of these brackets out on one of their Haas cncs on sunday for me (great guys with the knowledge and means to machine about anything). I did the artwork on mechanical desk top. I also did the digi work for the same product on a b-series with the obdII oil pump if anyone is interested.


My H22 runs an H22 oil pump and ProDrive gear along with both of the factory crank sensors. Since i wanted to run cop i still needed a tdc cyl # 1 sensor. I also wanted it to be plug and play (no cam gear mods) so i designed this. The old zc/b20a exhaust cam sensor was modified on my lathe to mount on the new bracket.
Rodney, the owner of R&D Works, and his brother Darren whittled five of these brackets out on one of their Haas cncs on sunday for me (great guys with the knowledge and means to machine about anything). I did the artwork on mechanical desk top. I also did the digi work for the same product on a b-series with the obdII oil pump if anyone is interested.
hey rms
looks good, now my thing is can that take the signal from my msd box and trigger the cop's? i dont rember if my b20b block have the factory crank sensor on it but will one of those help with the setup your talking about?
Modified by h0ndavtec at 11:53 PM 10/27/2005
looks good, now my thing is can that take the signal from my msd box and trigger the cop's? i dont rember if my b20b block have the factory crank sensor on it but will one of those help with the setup your talking about?
Modified by h0ndavtec at 11:53 PM 10/27/2005
have you considered the electromotive system? while it's not true cop it is still very good. i was doing a similar setup to yours a few years back and decided to go that route. if you are interested i have a brand new unit that i never used. i can send you some pics.

i'm such a noob at images, i'll try again...

i'm such a noob at images, i'll try again...
haven't installed one as yet, but i have no doubt (if you saw the time and now money i sank into it you'd have no doube, either
). it is the same reluctor you find within any honda distributor. we should be testing a mule within the next two weeks i hope. nice thing with this is no major mods are required: this can be installed in 15 minutes with out cutting a single wire on the harness so any aem powered honda with a !!WORKING!! c2di will be able to convert to cop quickly and easily.
). it is the same reluctor you find within any honda distributor. we should be testing a mule within the next two weeks i hope. nice thing with this is no major mods are required: this can be installed in 15 minutes with out cutting a single wire on the harness so any aem powered honda with a !!WORKING!! c2di will be able to convert to cop quickly and easily.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by D-tuned »</TD></TR><TR><TD CLASS="quote">
Q> Can this be setup on Hondata?
A> No. Hondata only uses one (1) coil output
</TD></TR></TABLE>
why would a single coil output make it impossible to run COP? GM's DIS ignitions only have a single ECU igniter output. the spark is distributed in the hardware, and rather simply, i might add..
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dee »</TD></TR><TR><TD CLASS="quote">Off Topic but On Topic.
Nagaidenshi markets a multi coil setup for Honda's over here that uses a OEM single coil output to drive (4) coils. Too bad it has a typical JDM price ($825). For this price the setup should have also included a new Hall Effect sensor so the distributor can be completely removed. </TD></TR></TABLE>
there's no reason for it to cost that much. the expensive parts are the drive transistors, not even the control IC hardware. bastards.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h0ndavtec »</TD></TR><TR><TD CLASS="quote">i am builoding a project car. its an 88 accord hatch with a b18a. the car was originally carbed so i am running dual sidedraft carbs. i dont plan on running an ecu. the car is already wired with an aftermarket hot rod style 21 circuit wire kit. i have an msd sci box and some cbr coils. i want to run a cop setup but i been to develop a way to get the coils to fire correctly with the timing. i am looking for something in can use in place of the distributior to trigger the coils</TD></TR></TABLE>
google "edist." it costs about $300. an equivalent circuit that could run off the stock ECU can be built for about $15.
Q> Can this be setup on Hondata?
A> No. Hondata only uses one (1) coil output
</TD></TR></TABLE>
why would a single coil output make it impossible to run COP? GM's DIS ignitions only have a single ECU igniter output. the spark is distributed in the hardware, and rather simply, i might add..
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dee »</TD></TR><TR><TD CLASS="quote">Off Topic but On Topic.
Nagaidenshi markets a multi coil setup for Honda's over here that uses a OEM single coil output to drive (4) coils. Too bad it has a typical JDM price ($825). For this price the setup should have also included a new Hall Effect sensor so the distributor can be completely removed. </TD></TR></TABLE>
there's no reason for it to cost that much. the expensive parts are the drive transistors, not even the control IC hardware. bastards.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h0ndavtec »</TD></TR><TR><TD CLASS="quote">i am builoding a project car. its an 88 accord hatch with a b18a. the car was originally carbed so i am running dual sidedraft carbs. i dont plan on running an ecu. the car is already wired with an aftermarket hot rod style 21 circuit wire kit. i have an msd sci box and some cbr coils. i want to run a cop setup but i been to develop a way to get the coils to fire correctly with the timing. i am looking for something in can use in place of the distributior to trigger the coils</TD></TR></TABLE>
google "edist." it costs about $300. an equivalent circuit that could run off the stock ECU can be built for about $15.
yes, they work. sold my brand new one (at half of what i paid for it
) to get the c2di just as it became obvious that aem was having a major issue with them. so f it, i'm going with the m&w.
msd is a good product, too. no company better for cutomer/product support as far as i'm concerned.
) to get the c2di just as it became obvious that aem was having a major issue with them. so f it, i'm going with the m&w. msd is a good product, too. no company better for cutomer/product support as far as i'm concerned.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h0ndavtec »</TD></TR><TR><TD CLASS="quote">tony1 told me to use a msd dis4, i guess its a 4 channel msd ingition box that can control all for honda coils, any1 have any info on this?</TD></TR></TABLE>
wow.. tony1 recommending msd ignitions... never thought i'd see the day.. lol
wow.. tony1 recommending msd ignitions... never thought i'd see the day.. lol
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h0ndavtec »</TD></TR><TR><TD CLASS="quote">tony1 told me to use a msd dis4, i guess its a 4 channel msd ingition box that can control all for honda coils, any1 have any info on this?</TD></TR></TABLE>
you can use the msd dis-4 or dis-2 to run this setup. the plugs and wiring are the same as the c2di. i've done a few setups using the msd and having had any problems.
you can use the msd dis-4 or dis-2 to run this setup. the plugs and wiring are the same as the c2di. i've done a few setups using the msd and having had any problems.
can we get a list of the manufacter's that are currently producing the "cdi" box's for retail?
here is the few that i know of, are there any others???
1. M&W
a. Pro12 Two channel cdi with twin spark & energy switch
b. Pro14 Four channel cdi
c. Pro-drag2 Two channel magnum cdi for drag racing use
d. Pro-Drag4 Four channel magnum cdi for drag racing use
2. MSD
a. MSD stacker
b. MSD programable DIS 2 (for use with 2 coil packs
c. MSD dis2 & dis4 +
d. MSD dis2 & dis4 H.O.
3. Autronic
a. Autronic 500R
4. Motec
a. Motec single,twin,four and eight channel CDI's
5. Aem <-- have the issues been resolved with these as of yet/lately? any news from Aem users/retailers/install centers?
a. AEM C2DI
6. Accel(not sure if this will work with anything rather than the Accel Dfi.)
a. universal coil per plug kit with 4 ing. coils PN# 75804
here is the few that i know of, are there any others???
1. M&W
a. Pro12 Two channel cdi with twin spark & energy switch
b. Pro14 Four channel cdi
c. Pro-drag2 Two channel magnum cdi for drag racing use
d. Pro-Drag4 Four channel magnum cdi for drag racing use
2. MSD
a. MSD stacker
b. MSD programable DIS 2 (for use with 2 coil packs
c. MSD dis2 & dis4 +
d. MSD dis2 & dis4 H.O.
3. Autronic
a. Autronic 500R
4. Motec
a. Motec single,twin,four and eight channel CDI's
5. Aem <-- have the issues been resolved with these as of yet/lately? any news from Aem users/retailers/install centers?
a. AEM C2DI
6. Accel(not sure if this will work with anything rather than the Accel Dfi.)
a. universal coil per plug kit with 4 ing. coils PN# 75804
so i can use a msd dis2 to fire cly 1&4 then 2&3 together even thouh i have 4 different coils? i pretty much have the idea of how to wire it up, just wondering if its possable/sensable to have one channel operating 2 cbr coils
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h0ndavtec »</TD></TR><TR><TD CLASS="quote">so i can use a msd dis2 to fire cly 1&4 then 2&3 together even thouh i have 4 different coils? i pretty much have the idea of how to wire it up, just wondering if its possable/sensable to have one channel operating 2 cbr coils</TD></TR></TABLE>
yes with the msd dis-2 you can run a wasted spark setup. the diagram is on the first page
yes with the msd dis-2 you can run a wasted spark setup. the diagram is on the first page


