Microtech Area is for discussing Microtech systems

Microtech lt10 and x4 wiring problem..... help

Old 05-19-09, 12:05 AM
  #1  
Junior Member
Thread Starter
 
kneel_to_the_rotary69's Avatar
 
Join Date: Aug 2008
Location: kansas city
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
lt10 and x4 wiring problem..... help

i just recently purchased a microtech lt10s with a x4 ignition, my question is when i got it ( i got it used ) the loom looked amazing thanks to the guy who sold it to me he cleaned it up a bit. my question is from the x4 box there are 4 wires that are cut and i have no idea where they go? wires are green/red/black/white as for the those wires i havent a clue of where they go or anything. please someone help. its stock t2 motor, i am also concerned about the x4 box being under the hood, if it will hurt it any, for i dont want to cut and extend wires. the diagram from the microtech site only gives me a diagram for the lt10 to a subie. if anyone has the entire diagram let me know and i can hopefully get the rest from there. ill post pics of what i am talking about.
kneel_to_the_rotary69 is offline  
Old 05-19-09, 12:09 AM
  #2  
No phonebook but OG calls
iTrader: (30)
 
BurntOrangeT2's Avatar
 
Join Date: Aug 2008
Location: Kansas City, MO
Posts: 1,015
Likes: 0
Received 2 Likes on 2 Posts
Yo dimitri its cory see you went standalone lol i have a LT10S go figure anyway if you need help with X4 box ur best bet might be a member by tha name of RX72C (not to say that everyone in here isnt or anything) he is like the microtech god that should get you started.
BurntOrangeT2 is offline  
Old 05-19-09, 12:23 AM
  #3  
Junior Member
Thread Starter
 
kneel_to_the_rotary69's Avatar
 
Join Date: Aug 2008
Location: kansas city
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
damn long time no see or talk. lost the number i had for you. how did you wire yours up if you have a clue. i mean the loom is all there and it looks really good and i dont see anything wrong with the wires it looks fantastic thanks to the guy who sold it to me. but the four wires that lead out of the x4 box is weird. and cant find out how to lead.
kneel_to_the_rotary69 is offline  
Old 05-19-09, 01:04 AM
  #4  
No phonebook but OG calls
iTrader: (30)
 
BurntOrangeT2's Avatar
 
Join Date: Aug 2008
Location: Kansas City, MO
Posts: 1,015
Likes: 0
Received 2 Likes on 2 Posts
i dont know to be honest with you i am running stock T2 coils so just give it overnight someone will post
BurntOrangeT2 is offline  
Old 05-19-09, 01:06 AM
  #5  
Junior Member
Thread Starter
 
kneel_to_the_rotary69's Avatar
 
Join Date: Aug 2008
Location: kansas city
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
im running stock completely my motor is still stock. nothing done to her yet, other then the standalone.
kneel_to_the_rotary69 is offline  
Old 05-19-09, 05:41 AM
  #6  
Rotary Freak
iTrader: (8)
 
rx72c's Avatar
 
Join Date: Jun 2003
Location: Australia
Posts: 2,608
Likes: 0
Received 0 Likes on 0 Posts
Ive sent you a a pm.

To add to the pm i already sent you concering the coils.

Put a 12v ignition to each positive power on each coil

If you dont have a good one.

You can run direct power from your battery or starter motor. that works fine as well.
rx72c is offline  
Old 07-06-09, 01:48 PM
  #7  
SCCAEP
iTrader: (3)
 
SCCAITS's Avatar
 
Join Date: Dec 2006
Location: Dallas
Posts: 1,080
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by rx72c View Post
Put a 12v ignition to each positive power on each coil

If you dont have a good one.

You can run direct power from your battery or starter motor. that works fine as well.

How much power do the coils need (amps) ? I am wiring up a LT10 and X4 using 4 trailing coils. The car does not have any stock wiring. I'm trying to figure out where I want to power the coils from and it depends on what the coils draw. If I run from the starter, shouldn't it be fused?
SCCAITS is offline  
Old 07-06-09, 05:48 PM
  #8  
Rotary Freak
iTrader: (8)
 
rx72c's Avatar
 
Join Date: Jun 2003
Location: Australia
Posts: 2,608
Likes: 0
Received 0 Likes on 0 Posts
Run it from the starter.
And put a 40 amp fuse.
rx72c is offline  
Old 07-08-09, 03:09 PM
  #9  
SCCAEP
iTrader: (3)
 
SCCAITS's Avatar
 
Join Date: Dec 2006
Location: Dallas
Posts: 1,080
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by rx72c View Post
Run it from the starter.
And put a 40 amp fuse.
How many amps should 4 trailing coils pull? I can only find fuse holders rated at 30a (even though they have 10ga pig tails).

I was going to pull power from the B terminal on the alternator - which is hooked to the starter via 10ga as the starter runs to the battery in the back of the car via 2ga. The kill switch is run off a 200a relay located by the battery. Wiring is my weak point but I don't see why I can't run a 10 ga power lead off the B terminal for the coils, right?
SCCAITS is offline  
Old 07-08-09, 05:24 PM
  #10  
Rotary Freak
iTrader: (8)
 
rx72c's Avatar
 
Join Date: Jun 2003
Location: Australia
Posts: 2,608
Likes: 0
Received 0 Likes on 0 Posts
I do alot of overkill when it comes to wiring.

But a 30A fuse will work for your coils.

10 guage wire is fine.
rx72c is offline  
Old 07-08-09, 05:34 PM
  #11  
The king of the highway!
10 Year Member
iTrader: (2)
 
darkphantom's Avatar
 
Join Date: May 2004
Location: Home of the 305 Boyz(miami)
Posts: 2,989
Likes: 0
Received 0 Likes on 0 Posts
call me tomorrow and ill help you out with it ill walk with you with it!(305) 978-1352
darkphantom is offline  
Old 07-08-09, 08:10 PM
  #12  
SCCAEP
iTrader: (3)
 
SCCAITS's Avatar
 
Join Date: Dec 2006
Location: Dallas
Posts: 1,080
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by rx72c View Post
I do alot of overkill when it comes to wiring.

But a 30A fuse will work for your coils.

10 guage wire is fine.
I tried do overkill as well. Thanks for the info.

Originally Posted by darkphantom View Post
call me tomorrow and ill help you out with it ill walk with you with it!(305) 978-1352
Thanks, will do. I'll take any tips I can get, it's my first wiring job. I did the main wiring while waiting for the Microtech arrive. It's all done in 10/14/16ga cross-linked polyethylene jacket wire, Weather Pack and Metri-Pack connectors (19 total - I wanted everything plugged and new plugs - CAS/wipers/brake lights/coils, etc) - soldered pins, soldered connections with heat shrink and all wrapped in Tesa harness tape. Battery is hooked up with 2ga welding wire soldered and heat shrinked. I should have used a Painless switch panel but instead used a Moroso fused/lighted switch panel so that took extra time.

I just have to hook up the Microtech this weekend. The instructions seem very straight forward, but I had not accounted for needing high amp 12v to the coils or to the ECU, just have an extra 10ga wire off the ignition switch but don't think it can handle the load with only a 20a switch.

Question is will it all work or maybe I have something overloaded, guess I'll find out.
SCCAITS is offline  
Old 07-09-09, 04:35 PM
  #13  
Rotary Freak
iTrader: (8)
 
rx72c's Avatar
 
Join Date: Jun 2003
Location: Australia
Posts: 2,608
Likes: 0
Received 0 Likes on 0 Posts
Dont load it off the ignition switch?

If you want it ignition switch use a relay per pair of coils.
rx72c is offline  
Old 09-16-09, 10:15 PM
  #14  
wtf rotary wtf
10 Year Member
iTrader: (3)
 
hurleysurf24's Avatar
 
Join Date: Aug 2005
Location: Who knows
Posts: 2,756
Likes: 0
Received 0 Likes on 0 Posts
was browsing for answers and came across this guy ... I'm looking at the schematics for wiring up the coils, it doesnt show a fuse or relay anywhere with the positive wire connected to all the coils and ignition?
hurleysurf24 is offline  
Old 09-17-09, 01:33 AM
  #15  
Rotary Freak
iTrader: (8)
 
rx72c's Avatar
 
Join Date: Jun 2003
Location: Australia
Posts: 2,608
Likes: 0
Received 0 Likes on 0 Posts
Schematics dont show all. Somethings you have to with your own knowledge.
rx72c is offline  
Old 09-17-09, 11:19 PM
  #16  
wtf rotary wtf
10 Year Member
iTrader: (3)
 
hurleysurf24's Avatar
 
Join Date: Aug 2005
Location: Who knows
Posts: 2,756
Likes: 0
Received 0 Likes on 0 Posts
how big a relay are we talking for the coils 4 prong, or 5 ? (im assuming 4 unless im missing something)
why wouldnt one be sufficient before the ignition splits for each set of coils?
hurleysurf24 is offline  
Old 09-18-09, 02:22 AM
  #17  
Rotary Freak
iTrader: (8)
 
rx72c's Avatar
 
Join Date: Jun 2003
Location: Australia
Posts: 2,608
Likes: 0
Received 0 Likes on 0 Posts
I usually like running 2 30amp coils. One relay per pair. I have tried it with one relay and the relay will get hot after some use. Were as with two. Always cold.
rx72c is offline  
Old 07-01-10, 12:08 AM
  #18  
Two doritos, on a stick..
5 Year Member
iTrader: (2)
 
Join Date: Oct 2008
Location: calgary alberta canada
Posts: 120
Likes: 0
Received 0 Likes on 0 Posts
Also wiring X4 box...

So I'm in a similar boat here, and I'm thinking we should politely ask microtech for a diagram concerning the X4 box? haha I've looked on every website with Microtech in the address bar and found no diagrams mentioning it.

Anyways, my understanding is that when using factory FC TII S5 trailing coils, 12v+ is run to the tan wires, and the blue and black wires (on coils) are connected to the orange and yellow firing signal wires (from X4). Then simply ground/earth the black wire to the engine block and I'm on my way?

Just like to confirm in simple terms for those rotary enthusiasts still on a learning curve, like myself
abtosway is offline  
Old 07-01-10, 05:27 PM
  #19  
FD Project
iTrader: (58)
 
BLACK MAMBA's Avatar
 
Join Date: Apr 2009
Location: Palm Beach, FL
Posts: 2,353
Likes: 0
Received 1 Like on 1 Post
there should only be 2 wires on the coils, you are running the coil without the igniter.
BLACK MAMBA is offline  
Old 07-01-10, 06:01 PM
  #20  
Two doritos, on a stick..
5 Year Member
iTrader: (2)
 
Join Date: Oct 2008
Location: calgary alberta canada
Posts: 120
Likes: 0
Received 0 Likes on 0 Posts
exactly! so in that case the tan wire on the coil is the positive? and the black wire (blue on the coil marked T2) is the signal?
abtosway is offline  
Old 07-01-10, 08:51 PM
  #21  
Two doritos, on a stick..
5 Year Member
iTrader: (2)
 
Join Date: Oct 2008
Location: calgary alberta canada
Posts: 120
Likes: 0
Received 0 Likes on 0 Posts
edit: Look at me learning! I'm going to have this sorted in no time!
Alright, so upon taking apart the trailing ignitor, all becomes clear.
-The brown wire between the ignitor and the coils is the +12v and the black an T1 is the signal, the blue on T2 is the signal.
The tach output on the original is replaced by the output on the x4 box.
I'm now 70% confident i can wire these without blowing up the x4, lt10 or my coils!
(ps last chance to correct me! )
abtosway is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
toplessFC3Sman
2nd Generation Specific (1986-1992)
6
03-20-18 01:54 PM
DocHoliday89
3rd Generation Specific (1993-2002)
5
10-12-15 07:42 PM
FC3S_nataku
2nd Generation Specific (1986-1992)
4
09-15-15 12:36 PM
cosmo7
West RX-7 Forum
2
09-14-15 09:47 PM


Thread Tools
Search this Thread
Quick Reply: Microtech lt10 and x4 wiring problem..... help


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: