msd ignition box on fc's
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Newbie
Joined: Nov 2003
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From: vegas
msd ignition box on fc's
does anybody knows how to hook up an msd box and coil blaster on an 87 rx7 and would it help or make a difference on my car or is der any other alternative other than msd box and coil blaster
I wish I was driving!
Joined: Dec 2001
Posts: 5,241
Likes: 84
From: BC, Canada
Originally posted by SDrotary
Is it a turbo or n/a, If it's a n/a the stock coil's should work fine there pretty good.
Is it a turbo or n/a, If it's a n/a the stock coil's should work fine there pretty good.
They are very good, and usually there is nothing to be gained by swapping to aftermarket coils.
For CDI install:
http://fc3spro.com/TECH/HOWTO/CDI/cdi.html
http://fc3spro.com/TECH/MODS/IGN/cdi.htm
Senior Member
Joined: Jun 2002
Posts: 284
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From: Edmonton Alberta
if you want to keep your stock coils (I'm assuming your putting the MSD for leading) then you just need one MSD 6A (cheapest MSD I think). If you want to replace the leading coils then, you would need (from what I understand) 2 MSD 6a Boxes and 2 blaster coils, this is what I have done on my car. Also I did the wiring as on the fc3spro.com and had problems with getting spark on the leading plugs.... theres another way to wire the boxes using the purple and green magnetic pickup wires. A local rx7 guy showed me this and has been running fine since...
I wish I was driving!
Joined: Dec 2001
Posts: 5,241
Likes: 84
From: BC, Canada
Originally posted by Z3r0
if you want to keep your stock coils (I'm assuming your putting the MSD for leading) then you just need one MSD 6A (cheapest MSD I think). If you want to replace the leading coils then, you would need (from what I understand) 2 MSD 6a Boxes and 2 blaster coils, this is what I have done on my car. Also I did the wiring as on the fc3spro.com and had problems with getting spark on the leading plugs.... theres another way to wire the boxes using the purple and green magnetic pickup wires. A local rx7 guy showed me this and has been running fine since...
if you want to keep your stock coils (I'm assuming your putting the MSD for leading) then you just need one MSD 6A (cheapest MSD I think). If you want to replace the leading coils then, you would need (from what I understand) 2 MSD 6a Boxes and 2 blaster coils, this is what I have done on my car. Also I did the wiring as on the fc3spro.com and had problems with getting spark on the leading plugs.... theres another way to wire the boxes using the purple and green magnetic pickup wires. A local rx7 guy showed me this and has been running fine since...
If you are headset on replacing your coils, MSD offers a motorcycle twin-post coil that works fine. Simply buy that, and then use one MSD box. Using two CDI's on the leading is a huge waste of coin.
here's some more info:
http://fc3spro.com/TECH/MODS/IGN/coils.htm
Again, there is nothing to gain by replacing the stock coils. They are really very good.
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Rotary Enthusiast
Joined: Dec 2001
Posts: 1,350
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From: not in winterpeg anymore
From what I have read it is a mod that should be near the end of the list. Only really makes a difference after a whole bunch of other things have been done. Also allows for a bigger gap(thanks Icemark for teaching me that) on the plug, thus maybe giving a little increase in power.
I have the Jacobs Rotary pro pak, and with it running, the motor sounds a lot meaner.
I have the Jacobs Rotary pro pak, and with it running, the motor sounds a lot meaner.
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