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nasstee pink dart
2 BBL ''SuperSix''
Joined: 05 Jan 2008
Posts: 10
Location: FLORIDA
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Post subject:
Coil on Plug Conversion
(Mon Mar 17, 2008 10:07 pm)
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| I was wondering if anyone has tried to convert the slant six to coil on plug? I have been considering it for my next project.
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dank10fenny
EFI Slant 6
Joined: 05 Nov 2007
Posts: 369
Location: PDX, OR
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Post subject:
(Mon Mar 17, 2008 10:15 pm)
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| distributorless igntion will still need a cam/crank sensor for the trigger... and an ecu to control it
_________________
'72 Valiant DD for over a decade-225-Disc brakes, big T-bars, big Sway bars f/r, carter bbd/super six, GM HEI, 2- 12" subs in trunk, 1000w amp...
'77 cherokee cheif widetrack-360-33x12.5 tires-no lift. keeps driveway dry-project/backup DD/mudder
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Pierre
Board Sponsor
Joined: 08 Feb 2003
Posts: 3641
Location: CA
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Post subject:
(Mon Mar 17, 2008 10:23 pm)
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I put some passing thought into it. Right now I'm running Ford EDIS controlled by megasquirt. It would be trivial, electric wise to convert to COP. No major (electrical) re-engineering to do. May have to run dual modules to get more current on the primary side. Mounting the coils would be the trickiest part. This would be kind of cheating though, it would still function as wasted spark.
I thought I read about some megasquirt firmware that could drive individual coils per cylinder.
What ecu were you thinking about for COP?
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Matt Cramer
Board Sponsor
Joined: 01 Nov 2002
Posts: 1516
Location: Oxford, Georgia
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Post subject:
(Tue Mar 18, 2008 6:17 pm)
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It's something I plan to try next after my turbo upgrade. It shouldn't take nearly as long as the turbo has taken.  My plan is to do a dyno shootout and see how coil on plug compares with a MSD 6A firing the distributor. I've already started setting up a crank trigger for it. |
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dank10fenny
EFI Slant 6
Joined: 05 Nov 2007
Posts: 369
Location: PDX, OR
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Post subject:
(Tue Mar 18, 2008 6:34 pm)
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| is the ford edis waste spark?
_________________
'72 Valiant DD for over a decade-225-Disc brakes, big T-bars, big Sway bars f/r, carter bbd/super six, GM HEI, 2- 12" subs in trunk, 1000w amp...
'77 cherokee cheif widetrack-360-33x12.5 tires-no lift. keeps driveway dry-project/backup DD/mudder
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Pierre
Board Sponsor
Joined: 08 Feb 2003
Posts: 3641
Location: CA
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Post subject:
(Tue Mar 18, 2008 8:19 pm)
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| Yep it is. Easy way to tell - coil packs have one wire for the positive feed, and one negative wire per pair of coils.
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dank10fenny
EFI Slant 6
Joined: 05 Nov 2007
Posts: 369
Location: PDX, OR
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Post subject:
(Wed Mar 19, 2008 6:21 pm)
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| isnt that a way to determine the mated pairs as well...?
_________________
'72 Valiant DD for over a decade-225-Disc brakes, big T-bars, big Sway bars f/r, carter bbd/super six, GM HEI, 2- 12" subs in trunk, 1000w amp...
'77 cherokee cheif widetrack-360-33x12.5 tires-no lift. keeps driveway dry-project/backup DD/mudder
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Pierre
Board Sponsor
Joined: 08 Feb 2003
Posts: 3641
Location: CA
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Post subject:
(Wed Mar 19, 2008 6:36 pm)
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| Not sure what you mean by mated pairs. There are diagrams on the msns/msns-e sites of which plug towers equate to which pins on the harnes connector.
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dank10fenny
EFI Slant 6
Joined: 05 Nov 2007
Posts: 369
Location: PDX, OR
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Post subject:
(Wed Mar 19, 2008 11:16 pm)
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| im just speakin mated pairs on the cyls. like when two pistons are goin down at the same time regardless of which cycle they are on...
_________________
'72 Valiant DD for over a decade-225-Disc brakes, big T-bars, big Sway bars f/r, carter bbd/super six, GM HEI, 2- 12" subs in trunk, 1000w amp...
'77 cherokee cheif widetrack-360-33x12.5 tires-no lift. keeps driveway dry-project/backup DD/mudder
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Matt Cramer
Board Sponsor
Joined: 01 Nov 2002
Posts: 1516
Location: Oxford, Georgia
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Post subject:
(Thu Mar 20, 2008 5:48 am)
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| They're 3 cylinders apart on the firing order. |
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emsvitil
Supercharged
Joined: 12 May 2005
Posts: 4715
Location: So California
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Post subject:
(Thu Mar 20, 2008 1:13 pm)
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1 5 3 6 2 4
1 & 6
5 & 2
3 & 4
You'll notice that the members of the pairs are split between the front 3 cylinders and the rear 3 cylinders and the symmetry of their locations_________________ Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes
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Sam Powell
Supercharged
Joined: 04 Jun 2006
Posts: 3164
Location: Gaithersburg MD
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Post subject:
(Sun Mar 23, 2008 6:21 am)
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Good explanation Ems!
Sam_________________ A REAL professional is someone who knows when to hit it with a bigger hammer.
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Twisted Sixer
2 BBL ''SuperSix''
Joined: 07 Apr 2008
Posts: 19
Location: Las Vegas,NV
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Post subject:
(Tue Apr 08, 2008 9:01 pm)
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I know this is a silly ? but how deep are the spark plug tubes? Or another way of asking is how long would the coil need to be?
This is a 3.2 chrysler coil
_________________
1970 Vitamin C Duster 225 2bbl 904 eventually turbo efi r154 5 speed
1969 B5 blue roadrunner 383/727 soon to be turbo slant (JK)
1972 Barracuda was green 318 who knows?
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dank10fenny
EFI Slant 6
Joined: 05 Nov 2007
Posts: 369
Location: PDX, OR
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Post subject:
(Sun Apr 20, 2008 6:28 pm)
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| i would assume a little shorter than that. you gotta rember that those coil on plugs typicly go through the valve cover as well so they gotta be a bit longer...
_________________
'72 Valiant DD for over a decade-225-Disc brakes, big T-bars, big Sway bars f/r, carter bbd/super six, GM HEI, 2- 12" subs in trunk, 1000w amp...
'77 cherokee cheif widetrack-360-33x12.5 tires-no lift. keeps driveway dry-project/backup DD/mudder
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Rug_Trucker
Supercharged
Joined: 23 Feb 2005
Posts: 2583
Location: Pertneer Nashville TN
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Post subject:
(Sun May 18, 2008 5:09 am)
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What's the advantage of the coil on plug?_________________ '72 Duster 198 stock cam, 3:23's Hookers
'74Fart Dart 
'79 Maxivan 360 Offy Qjet Comp RV cam
93 D350 160HP Cummins Auto  Dually Clubcab
93 Corolla |
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