3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

coil relocation?

Thread Tools
 
Search this Thread
 
Old Mar 27, 2007 | 07:48 PM
  #1  
imluvinit's Avatar
Thread Starter
Senior Member
Tenured Member 10 Years
iTrader: (1)
 
Joined: Jun 2005
Posts: 451
Likes: 0
From: DE
coil relocation?

i thought i saw someone making a few of these as kit a couple of weeks ago. i cant seem to find it now. anyone remember this or was i in lala world? thanks
Reply
Old Mar 27, 2007 | 08:42 PM
  #2  
Railgun's Avatar
I won't let go
Veteran: Marine Corp
Tenured Member: 20 Years
Liked
Loved
 
Joined: Aug 2002
Posts: 3,871
Likes: 23
From: Chi -> Maidstone
In the for sale section...?

https://www.rx7club.com/non-classifieds-violations-59/fs-%2Aofficial%2A-coil-relocation-bracket-fd3s-thread-info-inside-632294/
Reply
Old Mar 27, 2007 | 08:50 PM
  #3  
imluvinit's Avatar
Thread Starter
Senior Member
Tenured Member 10 Years
iTrader: (1)
 
Joined: Jun 2005
Posts: 451
Likes: 0
From: DE
dont think that was the one but itll work...thanks
Reply
Old Mar 27, 2007 | 09:04 PM
  #4  
CMonakar's Avatar
rebreaking things
Tenured Member 05 Years
 
Joined: Apr 2006
Posts: 866
Likes: 0
From: Manhattan
This seems counter productive to me. The shorter the plug wires the better.
"We have found through extensive testing that approximately 100mJ provides sufficient energy for most racing applications and if the ignition coil is directly mounted on top of the spark plug (such as in some current production cars) then as little as 50mJ will suffice. "
http://www.mwignitions.com/pdf/mw8.pdf

Diminished ignition power in exchange for a pretty bracket. Why bother?
Reply
Old Mar 27, 2007 | 09:13 PM
  #5  
BuffDaddy915's Avatar
Tha ladies man
Tenured Member 15 Years
 
Joined: Oct 2003
Posts: 1,170
Likes: 0
From: Chicago
Thats an interesting ignition setup CMonakar...any1 know more info on this?
Reply
Old Mar 27, 2007 | 09:18 PM
  #6  
Railgun's Avatar
I won't let go
Veteran: Marine Corp
Tenured Member: 20 Years
Liked
Loved
 
Joined: Aug 2002
Posts: 3,871
Likes: 23
From: Chi -> Maidstone
Performance difference is negligible. There are tons of applications with wires much longer than this. And from personal experience, I can't see any difference. If you're that worried about loss, use a lower resistance wire.
Reply
Old Mar 27, 2007 | 09:25 PM
  #7  
BuffDaddy915's Avatar
Tha ladies man
Tenured Member 15 Years
 
Joined: Oct 2003
Posts: 1,170
Likes: 0
From: Chicago
Im not worried tha length of wire...more interested in info of tha ignition systems that are on tha site.
Reply
Old Mar 27, 2007 | 09:44 PM
  #8  
Railgun's Avatar
I won't let go
Veteran: Marine Corp
Tenured Member: 20 Years
Liked
Loved
 
Joined: Aug 2002
Posts: 3,871
Likes: 23
From: Chi -> Maidstone
Heh...took me a while to type that up...I started before you posted...

But it does look interesting. Though, we've seen potentially good, affordable CDI ignition systems before...look what happened with that...
Reply
Old Mar 27, 2007 | 09:47 PM
  #9  
CrispyRX7's Avatar
Polishing Fiend
Tenured Member: 20 Years
Liked
Loved
iTrader: (139)
 
Joined: Apr 2001
Posts: 3,391
Likes: 48
From: MD
Originally Posted by CMonakar
This seems counter productive to me. The shorter the plug wires the better.

http://www.mwignitions.com/pdf/mw8.pdf

Diminished ignition power in exchange for a pretty bracket. Why bother?
From the catalogue page 3: "They (the coils) should be mounted in a part of the engine bay that receives fresh air flow." Note the location of the stock FD coils, buried under the UIM sitting directly on top of the engine block. Ima thinkin' thats not a very good location for ignition coils. READ: It's hot in there!

Additionally from page 3: "It is recommended that coil wires should not exceed 1 metre in length." The stock FD wires are about 12-18" in length. The TII wires are about 24-28" in length, which from my understanding can be used with the relocated coils. Well below the recommended maximum length.

Stock FD coils have been proven reliable to well beyond 450rwhp. With suitably sized ignition wires, relocating the coils will increase reliability by keeping the coils cooler and should provide for minimal, if any, reduction in performance.

IMHO,
Crispy
Reply
Old Mar 29, 2007 | 07:09 PM
  #10  
imluvinit's Avatar
Thread Starter
Senior Member
Tenured Member 10 Years
iTrader: (1)
 
Joined: Jun 2005
Posts: 451
Likes: 0
From: DE
yeah my main reason is heat and it gives me more room for the injector drivers. on my old race car we actually dynoed the car using diferent length wire to settle the same question and it made not difference power wise and we saw no evidence of ignition break up in the graph. so i think it will be fine.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
GKW
1st Generation Specific (1979-1985)
5
Sep 28, 2015 04:34 PM
killerrx710
Adaptronic Engine Mgmt - AUS
5
Sep 28, 2015 09:13 AM
choddaboy
Introduce yourself
0
Sep 26, 2015 06:35 PM
killerrx710
2nd Generation Specific (1986-1992)
1
Sep 24, 2015 10:57 PM




All times are GMT -5. The time now is 12:14 PM.