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3 restos WIP = psycho
 
kenikh's Avatar
 
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,728
Here's a great resource to get all the info you never knew you wanted on Megaspark:

http://www.msefi.com/

I have been trolling this BBS for info for a few days now. Great site and crowd...
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- 1965 911
- 1969 911S
- 1980 911SC Targa
- 1979 930
Old 02-21-2005, 11:01 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #21 (permalink)
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dumb question #153: has anyone ever tried splitting each cylinder wire and thus connecting each distr output directly to two plugs? would you get an equal amount of energy to each plug?
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1969 911E (historic racer)
911ST replica (tarmac rally)
Old 02-21-2005, 12:54 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #22 (permalink)
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Join Date: Jun 2001
Location: Sweden
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Quote:
Originally posted by obrut
dumb question #153: has anyone ever tried splitting each cylinder wire and thus connecting each distr output directly to two plugs? would you get an equal amount of energy to each plug?
Nope. It doesn't work that way. What would happend is that only one plug would get the spark. The one that has smallest gap.
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Old 02-21-2005, 01:15 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #23 (permalink)
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thanks bb - i knew it couldn't be that simple...
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Cheers, Ryan
1969 911E (historic racer)
911ST replica (tarmac rally)
Old 02-21-2005, 02:04 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #24 (permalink)
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Join Date: Jun 2003
Location: St Petersburg, FL
Posts: 3,814
Quote:
Originally posted by Mike Bonkalski
As Andy mentions earlier, Megasquirt can be used to control just spark.

Megasquirt in conjunction with a Ford EDIS ignition module, coil pack, VR sensor and 36-1 notched wheel mounted to the crank pulley will give you distributorless ignition at a great price. EDIS has been tested accurate to 9000 rpm. Another benefit is the ability to piggy back another coil pack onto the ignition module to allow for twin plugging.

If you build the Megasquirt yourself and salvage the EDIS parts, you can realistically spend no more than $400 for twin plug, distributorless ignition.
Yup, my budget 930 project is going the MSII + EDIS route.

A new EDIS ignition controller and coil pack can be had for less than $100.

MSII can be had for less than $300.

I have an EDIS trigger wheel from a ford V6 I might use but I am also concidering making a custom unit that is incremented every 5 degrees instead of 10 and has two missing notches on oppositve sides of the wheel so I can set up an ignition trigger where the air pump drive pulley on the left crank used to be. I need keep the pulley housing since my turbo scavenge pump mounts on top of it so I figured I might take advantage of it assuming the inductive pickup can deal with the tighter trigger notch spacing.

Since everything is apart and I am planning on putting my massive 930 pressure plate on a diet I might notch the continuous path around its side and set up a trigger on the bell housing instead.

Ah, so many possibilities, and all so cheap when you can do it yourself.

As far as reliability goes the EDIS in my ford escort is still running perfectly after 220,000+ miles. Thats good since its supplies the trigger signal for the EFI.

Last edited by 350HP930; 02-21-2005 at 02:40 PM..
Old 02-21-2005, 02:37 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #25 (permalink)
3 restos WIP = psycho
 
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Join Date: Feb 2005
Location: North of Exit 17
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Yup. After reading the FAQ on MegaSuirt, I am sold. I just finished printing the whole mnaual 5 minutes ago.
Old 02-21-2005, 02:41 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #26 (permalink)
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Join Date: Jul 2003
Location: Army, Retrograded
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well one more thing b4 you jump, check coast of Simple Digital System and thir upgrades......you might be pleasently surprised
Old 02-21-2005, 03:31 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #27 (permalink)
3 restos WIP = psycho
 
kenikh's Avatar
 
Join Date: Feb 2005
Location: North of Exit 17
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Quote:
Originally posted by afterburn 549
well one more thing b4 you jump, check coast of Simple Digital System and thir upgrades......you might be pleasently surprised
Base system is about a grand. Not a bad price. I still figure I could do a Megasquirt cheaper building it myself, but for someone looking for a turnkey solution, looks pretty nice.
Old 02-21-2005, 06:31 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #28 (permalink)
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