Custoem Ignition 2nd Gen CAS w/2MSD 6AL's
#1
Custoem Ignition 2nd Gen CAS w/2MSD 6AL's
http://cgi.ebay.com/ebaymotors/Mazda...22955374QQrdZ1 This cars on Ebay but what really interested me is the ignition system. I've never seen a setup like it and was interested to see if anyone has done this before. Looks pretty staight forward. They are running the signal from the CAS to the MSD's and firing both coils direct fire, no split, looks simple but would like to see if anyone else has done this. And if anyone knows exactly how to wire this up. Ignition guru's tune in to this thread I would really like to try this out as soon as I figure out the wiring.
#3
Learned alot | Alot to go
iTrader: (2)
Join Date: Apr 2002
Location: Rotaryland, New Hampshire
Posts: 4,232
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by SirCygnus
um... why does that look different from any 2nd gen ignition system besides the ones in europe?
much different
#4
www.lms-efi.com
iTrader: (27)
Originally Posted by 13btnos
http://cgi.ebay.com/ebaymotors/Mazda...22955374QQrdZ1 This cars on Ebay but what really interested me is the ignition system. I've never seen a setup like it and was interested to see if anyone has done this before. Looks pretty staight forward. They are running the signal from the CAS to the MSD's and firing both coils direct fire, no split, looks simple but would like to see if anyone else has done this. And if anyone knows exactly how to wire this up. Ignition guru's tune in to this thread I would really like to try this out as soon as I figure out the wiring.
I would guess that you could take a CAS and lop off all but two teeth from the 24 tooth wheel to trigger one rotor and use the existing 2 tooth wheel to trigger the other. Doing this will give each MSD a 360* trigger signal. They'll each fire once per revolution. The teeth would need to be phased exactly every 90*. Each wheel having 2 teeth at 180* and the wheels phased 90* to each other. And I'm assuming the MSD could be triggered directly from the reluctors in the CAS.
#6
I posted a question a while ago about trying a setup very similar to this. I was told that firing the plugs in the same chamber off the same coil will yield a very low spark energy. Any comments?
#7
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,840
Received 2,604 Likes
on
1,847 Posts
Originally Posted by mwatson184
I posted a question a while ago about trying a setup very similar to this. I was told that firing the plugs in the same chamber off the same coil will yield a very low spark energy. Any comments?
Trending Topics
#9
Originally Posted by mwatson184
I posted a question a while ago about trying a setup very similar to this. I was told that firing the plugs in the same chamber off the same coil will yield a very low spark energy. Any comments?
Would the tacho still work on 4cyl mode with this setup??
Last edited by PDF; 03-20-06 at 02:19 AM.
#10
But normally, it fires one of the plugs in an already combusted, low pressure situation. I'll try to find the post I made a while ago, the way it was explained to me makes sense.
#11
https://www.rx7club.com/1st-generation-specific-1979-1985-18/second-gen-cas-pickup-firing-first-gen-ignitor-415097/
Ok there is my old thread. Just made me realize how long it's been since I've been home to work on my car. Depressing.
Ok there is my old thread. Just made me realize how long it's been since I've been home to work on my car. Depressing.
#12
Hopeless Rotorhead
iTrader: (2)
Join Date: Feb 2005
Location: N. Houston, TX
Posts: 590
Likes: 0
Received 0 Likes
on
0 Posts
Odd, I had always heard that the guys running a zero or neg split can only do so under vacuum. And those are the Leading coil packs , so unless he's wired them to have 2 channels per coil pack, constant 0 split?
#13
Rotors still spinning
iTrader: (1)
^They are running as zero timing split. You can run zero split under any load level. The total timing advance may or may not be different than one with splt though. Split affects this. Negative split can only be run under vacuum conditions and never at ambient or positive pressure.
Thread
Thread Starter
Forum
Replies
Last Post
ncds_fc
2nd Generation Specific (1986-1992)
19
09-15-15 12:03 AM