dwell reducer circuit for toyota COPs - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 04-18-2008, 03:16 PM   #21
Junior Member
iTrader: (8)
 
Join Date: Aug 2007
Posts: 392
Total Cats: -50
Default

Jason, thanks for the information.

I'm currently running COPs on my stock 99 ECU with no issues. I definitely want to do this mod though.

Braineak, I'd be interested in the circuit board if they are being printed (although I'd be even more interested in buying a built product).

Jason
jrmotorsports55 is offline   Reply With Quote
Old 04-18-2008, 07:48 PM   #22
Elite Member
Thread Starter
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

Quote:
Originally Posted by Splitime View Post
Not an issue for those of us running MS standalone style right Jason?
The wiring is an issue. You should connect the COP power and gnd as I described earlier.
JasonC SBB is offline   Reply With Quote
Old 04-19-2008, 07:10 AM   #23
Senior Member
 
Join Date: Mar 2006
Location: Schwarzenberg, Germany
Posts: 1,497
Total Cats: 81
Default

Hi Jason,

could you eventually do a little scheme, which wire off the wiring goes where on youre device? (It's because I am a electronical noob - it's like reading chinese for me) Thanks again!

Greets
Zaphod is offline   Reply With Quote
Old 04-19-2008, 10:32 AM   #24
Elite Member
iTrader: (22)
 
Join Date: Dec 2006
Location: Sunny Spanish speaking Non US Caribbean
Posts: 3,257
Total Cats: 3
Default

Jason, I understand you're using an AEM; for those of us with AEMs, is this a mod we should consider doing too?

Thanks

Rafa
Rafa is offline   Reply With Quote
Old 04-19-2008, 12:26 PM   #25
Elite Member
iTrader: (9)
 
Saml01's Avatar
 
Join Date: Jul 2007
Location: NYC
Posts: 5,730
Total Cats: 2
Default

Quote:
Originally Posted by JasonC SBB View Post
The wiring is an issue. You should connect the COP power and gnd as I described earlier.
If this solves my dwell issue Jason, I may just have to send you a little something something.
Saml01 is offline   Reply With Quote
Old 04-19-2008, 05:22 PM   #26
Elite Member
Thread Starter
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

Quote:
Originally Posted by Zaphod View Post
Hi Jason,

could you eventually do a little scheme, which wire off the wiring goes where on youre device? (It's because I am a electronical noob - it's like reading chinese for me) Thanks again!

Greets
Ground of the circuit should be connected to ECU ground, or the ground provided for the factory coilpacks. 12v can be any 12V switched. It won't care.
JasonC SBB is offline   Reply With Quote
Old 04-19-2008, 05:23 PM   #27
Elite Member
Thread Starter
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

Quote:
Originally Posted by Rafa View Post
Jason, I understand you're using an AEM; for those of us with AEMs, is this a mod we should consider doing too?

Thanks

Rafa
Do you mean using the Toy COPs? Yes, for high boost.
If you mean the power and gnd wiring for the COPs if you are using the AEM ... that's a yes too.
JasonC SBB is offline   Reply With Quote
Old 04-19-2008, 05:24 PM   #28
Elite Member
Thread Starter
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

Quote:
Originally Posted by Saml01 View Post
If this solves my dwell issue Jason, I may just have to send you a little something something.
Hookers and blow?
JasonC SBB is offline   Reply With Quote
Old 04-20-2008, 01:08 AM   #29
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

Largest caps I could pick up at Frys was 1000mfd. They're 16V 105C electrolytic. There were 4 on the shelf, so I got all 4; 1 to go across each COP. Best I could do in a pinch.
Ben is offline   Reply With Quote
Old 04-20-2008, 01:13 AM   #30
Elite Member
iTrader: (9)
 
Saml01's Avatar
 
Join Date: Jul 2007
Location: NYC
Posts: 5,730
Total Cats: 2
Default

^ ebay has 10000 but they are not the type you can lay down, and are audio grade. Like 8 bucks. Largest I could find in radioshack were 4700.
Saml01 is offline   Reply With Quote
Old 04-20-2008, 04:10 PM   #31
Elite Member
Thread Starter
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

LOL Digikey has 10,000 uF / 16V Nichicon HE series for <$2 each:

http://search.digikey.com/scripts/Dk...me=493-1546-ND
JasonC SBB is offline   Reply With Quote
Old 04-20-2008, 06:35 PM   #32
Elite Member
iTrader: (9)
 
Saml01's Avatar
 
Join Date: Jul 2007
Location: NYC
Posts: 5,730
Total Cats: 2
Default

Quote:
Originally Posted by JasonC SBB View Post
LOL Digikey has 10,000 uF / 16V Nichicon HE series for <$2 each:

http://search.digikey.com/scripts/Dk...me=493-1546-ND
LOL plus 5 dollar handling charge and shipping

I bet I could pull one out of an old computer powersupply.
Saml01 is offline   Reply With Quote
Old 04-20-2008, 07:13 PM   #33
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

Yeah dammit, $5 shipping.
I think I'll get several and see if people want them at $3 to offset. Everybody wins.
Ben is offline   Reply With Quote
Old 04-21-2008, 08:47 PM   #34
Elite Member
iTrader: (9)
 
Saml01's Avatar
 
Join Date: Jul 2007
Location: NYC
Posts: 5,730
Total Cats: 2
Default

I went and picked up two Nichicon 4700uf at radioshack for 10 bucks, I think they will do.
Saml01 is offline   Reply With Quote
Old 04-21-2008, 09:24 PM   #35
FHS
Senior Member
iTrader: (2)
 
Join Date: Oct 2004
Location: Los Angeles, Ca.
Posts: 502
Total Cats: 0
Default

Well damn,

Thanks for putting all the time into this Jason and posting the schematic.

I'm one of the guys having issues with the COPs and EManage Blue. I know you were able to get COPs running on Bob's EMB equipped '99 so I'm not worried about a circuit working with my '91.

So, basically, I need to find out what the stock dwell is set at for my '91? Assuming I can do that, what changes would I have to make to the circuit for it to run properly with my '91?
FHS is offline   Reply With Quote
Old 04-22-2008, 12:00 PM   #36
Elite Member
iTrader: (39)
 
Zabac's Avatar
 
Join Date: Sep 2007
Location: High Point NC
Posts: 4,854
Total Cats: 8
Default

Holy ****, why did i just read every post and still have no idea WTF is going on...and i just finished my COP harness.
Hate to sound like Sam, j/k, but seriously, can someone explain this to me in a ESL (English as a Second Language) type of ordeal.
I am running MS standalone on a 94, and my COP harness is a direct PnP into factory harness. Where would i insert this capacitor? Do i need one for each coil, or pair them up, or each on his own? Sorry, but i really do not get this ****, should have stayed on school, i know.
Thanks
Zabac is offline   Reply With Quote
Old 04-22-2008, 12:04 PM   #37
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

If you had a 10000MFD cap you'd install it between the +12V and gnd that runs behind the head to the coils, before each splits to 2 leads. If you had a pair of 4700MFD caps you'd install it one at each paired harness.
Ben is offline   Reply With Quote
Old 04-22-2008, 12:19 PM   #38
Elite Member
iTrader: (39)
 
Zabac's Avatar
 
Join Date: Sep 2007
Location: High Point NC
Posts: 4,854
Total Cats: 8
Default

Ben, i could do either, i got pretty good with the soldering gun, lol.
I think I may get in on your GB thing and just do the one before it splits. I just was not 100% sure I understand all this. I think i got it now. Thanks!
Zabac is offline   Reply With Quote
Old 04-22-2008, 12:45 PM   #39
I'm Miserable!
iTrader: (1)
 
Join Date: Oct 2005
Location: Columbia, SC
Posts: 858
Total Cats: 0
Default

My miata is a '96 with an AEM F/IC (piggyback). I've got my COP's, not installed yet. After reading this thread it seems as though it would be a good idea to make one of these doo-dads before taking the plunge.

Unfortunatly, im no electrician and don't know what to make of the schematics. Any pointers?
SloS13 is offline   Reply With Quote
Old 04-22-2008, 12:57 PM   #40
Elite Member
iTrader: (39)
 
Zabac's Avatar
 
Join Date: Sep 2007
Location: High Point NC
Posts: 4,854
Total Cats: 8
Default

Ignore the schematics, read what Ben said to me, we are pretty much in the same boat when it comes to your question
either buy the 10000MFD or buy two 4700's...that will determine where you will solder this in
I bought the 10000MFD and will put it in the main harness before it splits
Zabac is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Toyota Pickup Engine Swap B.S. Monk Build Threads 24 12-11-2016 03:21 PM
Toyota COP Erat Miata parts for sale/trade 17 02-17-2016 05:22 PM
01-05 Fab9 PNP COPs (used) FrankB Miata parts for sale/trade 6 09-30-2015 12:48 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 07:08 AM.