Rotary Car Performance General Rotary Car and Engine modification discussions.

FD Ignition Remodel Help

Thread Tools
 
Search this Thread
 
Old Dec 13, 2002 | 04:02 PM
  #1  
Lost Time's Avatar
Thread Starter
Chimera Driver
Tenured Member 10 Years
 
Joined: Jul 2001
Posts: 1,334
Likes: 0
From: Birmingham, AL
FD Ignition Remodel Help

Here's what I'm in the process of doing:

Using MSD Blaster 2 coils in place of oem, 2 for L, 1 each for T

Using a 6A for the amp

I'm relocating the coils to the fenderwall where the cruise control used to be.

Here's the questions:

Someone suggested that the TII plug wires would be the correct length and the FD ones too short. Can anyone confirm this?

Where the HELL is the igniter?? (I really should know this by now)

Since the oem L coil supports two plug wires and only has one connector am I just to splice into the connector and run one set of wires to each of my new L coils?

Any help is greatly appreciated.
Reply
Old Dec 13, 2002 | 07:35 PM
  #2  
rx7superman's Avatar
Senior Member
Tenured Member 15 Years
 
Joined: Aug 2001
Posts: 576
Likes: 0
From: Tampa, Florida
I relocated mine where the power steering/ac pump used to be. From there they are easy to get to and you could still use the factory length plug wires. Another benefit is they are'nt sittin on top of the firey beast, since they are positioned under the first vent of the(Vented Hood) hood and behind #2 radiator fan they get alot of cool air. But if you still have those creature comforts forget about it. Oh, the igniter is located right next to the cruise servo unit. And the TII wires are longer and would probably work though why would you want longer wires. I'm really big about how cluttered my engine bay would look with those long *** TII wires running left & right.
Reply
Old Dec 13, 2002 | 07:58 PM
  #3  
Lost Time's Avatar
Thread Starter
Chimera Driver
Tenured Member 10 Years
 
Joined: Jul 2001
Posts: 1,334
Likes: 0
From: Birmingham, AL
From what I heard, the stock wires won't reach the firewall so the TII wires became necessary for the added length. I still have the a/c p/s so I'm pretty solid about putting them on the fenderwall. At least they'll be close to the igniter.
Reply
Old Dec 13, 2002 | 08:03 PM
  #4  
SPOautos's Avatar
Hey, where did my $$$ go?
Tenured Member 10 Years
 
Joined: Feb 2001
Posts: 4,413
Likes: 0
From: Bimingham, AL
Also, you can mount the facing down and let the plug wires run under all that crap like the brake mc and you might not even notice them. Use black wires.

If you dont have or want to ditch cruise its a excellent place for them.

STEPHEN
Reply
Old Dec 14, 2002 | 10:32 PM
  #5  
sokudo's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 98
Likes: 0
From: japan
the ignighter is the small flat square amp looking thing on the drivers side fender wall between firewall and strut tower
Reply
Old Dec 16, 2002 | 07:53 PM
  #6  
Goblin's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 184
Likes: 0
From: Austin, TX
My coils are up behind and to the side of the driver's headlight. For plug wires, I bought the raw components (MSD) and just cut my own to fit.
Reply
Old Dec 16, 2002 | 10:45 PM
  #7  
Lost Time's Avatar
Thread Starter
Chimera Driver
Tenured Member 10 Years
 
Joined: Jul 2001
Posts: 1,334
Likes: 0
From: Birmingham, AL
Damn, that's an awful long way to run your plug wires. I'm going to try and mount them within a foot or two at the most.
Reply
Old Dec 17, 2002 | 12:47 AM
  #8  
maxcooper's Avatar
WWFSMD
Tenured Member 15 Years
 
Joined: Jun 2001
Posts: 5,035
Likes: 4
From: SoCal
You need to run the leading coils in series or parallel. Running one wire to each coil and grounding the other coil terminals won't work (well, one coil will work, but the other one won't).

(Please forgive the ASCII art...)

Series:

MSD1-------(COIL1)------(COIL2)--------MSD2

Parallel:
+----(COIL1)----+
MSD1-------+ +------MSD2
+----(COIL2)----+

I am not sure which of these configurations would be best for your setup. Series will have less spark energy, but parallel might burn out the amp. I would try series if I was in a pinch, and then I would contact MSD to see what they say.

You will need three MSD 6A boxes - one for leading, plus another one for each trailing circuit. Perhaps a DIS-2 or something could be used for the trailing circuits to reduce the total number of boxes.

Or you could run two ignition boxes, ignore the leading signal, and run two coils for each trailing signal (L&T for one rotor). You would need to program the ignition map for this to work well, but it is an option if you have a programmable ECU. That would give you zero timing split. Do a search in the Single turbo section to read about others who have done that.

-Max
Reply
Old Dec 17, 2002 | 08:33 AM
  #9  
Lost Time's Avatar
Thread Starter
Chimera Driver
Tenured Member 10 Years
 
Joined: Jul 2001
Posts: 1,334
Likes: 0
From: Birmingham, AL
Max, I was planning on running the 6A box on just the L coils. My "plan" was to wire the 6A into the two blaster coils, one for each L wire, by splicing the amp wiring into two sets. Are you saying it would be better to wire the two Blaster coils in series as opposed to splicing the amp wiring and running one set of + and - to each? I'm going to leave the T side stock for the time being and I am running the PFC so I have igntion tuneability.
Reply
Old Dec 17, 2002 | 11:18 AM
  #10  
Marcel Burkett's Avatar
Rotary Freak
Tenured Member 10 Years
 
Joined: Nov 2001
Posts: 2,715
Likes: 1
From: trinidad and tobago
That is exactly what I am in the process of doing , using a pair of Turbo11 trailing coils (without the ignitor) and a pair of MSD 6A's wired in parallel , from all I have read and actually thinking about it , this setup should work perfectly , I am a bit confused with maxcoopers discription though.
Reply
Old Dec 18, 2002 | 12:53 AM
  #11  
maxcooper's Avatar
WWFSMD
Tenured Member 15 Years
 
Joined: Jun 2001
Posts: 5,035
Likes: 4
From: SoCal
Running both coil wires from the ignition box to both terminals on both coils will be running them parallel. From your initial description, it souded like you were going to run one wire from the ignition box to each coil and ground the other coil terminals, which won't work. You can run one wire to each coil and then connect the other coil terminals to each other (but not to ground) to run them in series.

------- is one wire
==== is two wires

Won't work (one box):
MSD_WIRE_1--------------(Coil1)------->ground
MSD_WIRE_2--------------(Coil2)------->ground

Series (one box):
MSD_WIRE_1--------------(Coil1)---+ (connect the two coils to each other)
MSD_WIRE_2--------------(Coil2)---+

Parallel (one box):
(Coil1)=====MSD_BOX=====(Coil2)

Two boxes (each running one coil):
MSD_BOX_1========(Coil1)
MSD_BOX_2========(Coil2)

-Max
Reply
Old Dec 18, 2002 | 08:15 AM
  #12  
Lost Time's Avatar
Thread Starter
Chimera Driver
Tenured Member 10 Years
 
Joined: Jul 2001
Posts: 1,334
Likes: 0
From: Birmingham, AL
Thanks for the clarification Max. Your ASCII art is actually quite clear the second time around.

I'm sure plenty of guys are running MSD boxes. I wonder if they're running them parallel or in series. Anyone?
Reply
Old Dec 18, 2002 | 05:59 PM
  #13  
Goblin's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 184
Likes: 0
From: Austin, TX
Mine is set up with a 6A in series for the leading, and a DIS-2 for the trailing.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
WANKfactor
1st Generation Specific (1979-1985)
6
Sep 29, 2015 01:14 PM
GKW
1st Generation Specific (1979-1985)
5
Sep 28, 2015 04:34 PM
subeone
General Rotary Tech Support
0
Sep 24, 2015 09:58 PM
ncds_fc
2nd Generation Specific (1986-1992)
19
Sep 15, 2015 12:03 AM




All times are GMT -5. The time now is 04:47 PM.