COP...will these work? - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


MEGAsquirt A place to collectively sort out this megasquirt gizmo

Reply
 
 
 
LinkBack Thread Tools
Old 12-14-2011, 01:35 PM   #1
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: May 2009
Posts: 68
Total Cats: 0
Default COP...will these work?




I have 6 of these with the pigtails. I don't know what car they are from, I just aquired a box with 6 of them in it. Will these work with the MS?
If so are they worth messing with, and will my tach still work, only 2 wires most COPs i've seen are 4.
*edit*

after more google'n i think they are from a Pontiac.
Weaver is offline   Reply With Quote
Old 12-14-2011, 01:47 PM   #2
Elite Member
iTrader: (10)
 
Join Date: Oct 2008
Location: Seattle, Wa
Posts: 1,780
Total Cats: 30
Default

You'll need external ignitors (BIP373)
Jeff_Ciesielski is offline   Reply With Quote
Old 12-14-2011, 01:49 PM   #3
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Delicious and Moist.
Posts: 26,328
Total Cats: 1,926
Default

Quote:
Originally Posted by Weaver View Post
only 2 wires most COPs i've seen are 4.
As Pedojeff alluded, this indicates that these units do not have an internal igniter / tach driver- they just just coils with no onboard electronics. In their original application, they most likely used an external high-current driver, similar to the "igniter" in the '90-'93 Miatas.

You can still use them with a Megasquirt, however you will need to buy or construct a high-current driver to operate them. One option would be the 4-Channel Ignition/Injection Driver Board from JBPerf. Another option, if you want something pre-assembled, is the QuadSpark Four Channel Ignition Module from DIY.

And, of course, you'll still need to drive the tachometer, however this is fairly straightforward using the MS's Tacho Output option.
Joe Perez is offline   Reply With Quote
Old 12-14-2011, 01:51 PM   #4
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: May 2009
Posts: 68
Total Cats: 0
Default

sounds like they are a lot of work to get them to work.

FS $1 + shipping.
Weaver is offline   Reply With Quote
Old 12-14-2011, 01:56 PM   #5
Elite Member
iTrader: (10)
 
Join Date: Oct 2008
Location: Seattle, Wa
Posts: 1,780
Total Cats: 30
Default

Quote:
Originally Posted by Weaver View Post
sounds like they are a lot of work to get them to work.

FS $1 + shipping.
Not really.

If you used the quadspark that The Magnanimous Mr Perez posted, wiring them would be super easy. You would just run 2 trigger wires (one per ignition bank) out of the MS to the corresponding wires on the quadspark, then provide the coils with switched 12v power on the + side, and wire the quadspark to the - side of the coil. Easy peasy.
Jeff_Ciesielski is offline   Reply With Quote
Old 12-14-2011, 02:23 PM   #6
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: May 2009
Posts: 68
Total Cats: 0
Default

ok, I'll hang on to them then.
Weaver is offline   Reply With Quote
Old 12-15-2011, 04:34 PM   #7
Senior Member
iTrader: (5)
 
Join Date: Jul 2005
Posts: 715
Total Cats: 53
Default

I like to run the COP's with the external module anyways. I think there is just way too much heat around the COP's to have a poor igniter sit there. That is my 2cents! KEEP THEM!!
bcrx7 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Raleigh: Fiberglass headlight scope, 1.6L ECU, AFM, Hardtop latches, more bigmackloud Miata parts for sale/trade 13 09-22-2017 01:34 PM
Need help - Stock Balancer and Fastforward overlay pulleys Frank_and_Beans Supercharger Discussion 13 09-12-2016 09:17 PM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Walbro 255lph Fuel Pump $50 lsc224 Miata parts for sale/trade 2 10-01-2015 10:17 AM
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 05:48 PM.