Go Back   LS1TECH > SBC-BBC-LT1-LT4 PERFORMANCE > LT1-LT4 Modifications
Sign in using an external account
Register Forgot Password?
Search

LT1-LT4 Modifications
1993-97 Gen II Small Block V8

Welcome to LS1Tech.com!
Welcome to LS1Tech.com.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join LS1Tech.com today!


Reply
 
Thread Tools Search this Thread
Old 01-24-2010, 05:36 PM   #1
On The Tree
Garage is empty, add now
 
Trader Rating: 3
Join Date: Jan 2006
Location: Lakeland
Posts: 182
Question Wiring MSD 8680 timing retard for activation with n2o only.

Just finished installing a TNT plate kit on a 97 formula but I'm having trouble with the timing retard. Right now, I have the msd retard hooked up to only be powered up when the n2o arming switch is turned on. So the red is going to my arming relay and the black to chassis ground. The yellow wire from the retard is hooked to the white wire from the MSD 6AL, and the white wire from the retard is going to the white on the MSD harness which goes over to the coil. So the retard box is basically placed inline between the 6AL and the coil. The problem I'm having is that the car does not want to run unless I have the arming switch turned on (retard turned on). Would I be correct to say that when the retard is not powered on that it does not pass the signal coming through the white and yellow wires? I only want the retard to be activate when I'm spraying. If the arming switch is off (retard turned off) the car idles very low, pops, etc. I know the 6AL is fine as I can bypass the retard and it works fine.

8680 instruction sheet but doesn't address activation for n2o ----> http://static.summitracing.com/globa...0_frm28680.pdf

being LT1 specific, I figure this is the correct place to post. Mods move it to n2o forum if needed.

thanks
garage_queen is offline   Reply With Quote
Old 01-24-2010, 05:39 PM   #2
TECH Resident
Garage is empty, add now
 
69gto96z's Avatar
 
Trader Rating: 7
Join Date: May 2006
Location: Rockwall, TX
Posts: 888
Default

There is a sticky in the n2o section on how to wire everything.
__________________
96 TA M6 - Under the knife for a complete rebuild and LS swap
2002 Camaro SS - Bolt ons, for now
2012 CCSB TX Edition Sierra 4/7 drop

69gto96z is offline   Reply With Quote
Old 01-24-2010, 05:52 PM   #3
On The Tree
Garage is empty, add now
 
Trader Rating: 3
Join Date: Jan 2006
Location: Lakeland
Posts: 182
Default

I've been looking through all the stickies and searching but haven't found a good answer. I can find plenty of diagrams for wiring the retard to be active all the time but none that address having the retard powered on only when the nitrous system is armed. Car does not want to run with the retard powered off.

I'm sure this has to be a simple deal.
garage_queen is offline   Reply With Quote
Old 01-24-2010, 05:53 PM   #4
11 Second Club
Garage is empty, add now
 
speed_demon24's Avatar
 
Trader Rating: 6
Join Date: Dec 2001
Location: Ocala, FL
Posts: 4,619
Send a message via AIM to speed_demon24
Default

If it works the same as my old mallory box did just hook up the 12v source to the power wire on the nitrous solenoid.
__________________
2014 Focus ST
http://ls1tech.com/forums/vehicle-cl...p-386rwtq.html
97 Z28 M6 4.10's 430rwhp/386.7rwtq 11.89@120.2 1.93 60'[/B]
Engine - stock shortblock, Ai 200cc heads/cam, jethot longtubes, 2otl, cai, asp u/d pulley, 58mm tb
Suspension - Koni's, strano springs, strano swaybars, umi phb, C5 brakes
speed_demon24 is offline   Reply With Quote
Old 01-24-2010, 05:54 PM   #5
On The Tree
Garage is empty, add now
 
Trader Rating: 3
Join Date: Jan 2006
Location: Lakeland
Posts: 182
Default

Should I add a relay on the white wire so that the retard box is bypassed completely when the system isn't armed?
garage_queen is offline   Reply With Quote
Old 01-24-2010, 05:55 PM   #6
TECH Resident
Garage is empty, add now
 
69gto96z's Avatar
 
Trader Rating: 7
Join Date: May 2006
Location: Rockwall, TX
Posts: 888
Default

Quote:
Originally Posted by speed_demon24 View Post
If it works the same as my old mallory box did just hook up the 12v source to the power wire on the nitrous solenoid.
Thats how my 685 was wired when I had nitrous.
__________________
96 TA M6 - Under the knife for a complete rebuild and LS swap
2002 Camaro SS - Bolt ons, for now
2012 CCSB TX Edition Sierra 4/7 drop

69gto96z is offline   Reply With Quote
Old 01-24-2010, 05:56 PM   #7
On The Tree
Garage is empty, add now
 
Trader Rating: 3
Join Date: Jan 2006
Location: Lakeland
Posts: 182
Default

Quote:
Originally Posted by speed_demon24 View Post
If it works the same as my old mallory box did just hook up the 12v source to the power wire on the nitrous solenoid.
I think the mallory is different. Isn't that an all-in-one box? I'm running external retard so I don't really have a trigger wire. That's really no different than how I have it now. Only difference is I provide power to the retard when the arming switch is on. You provide power when the noids activate.
garage_queen is offline   Reply With Quote
Old 01-24-2010, 05:58 PM   #8
TECH Resident
Garage is empty, add now
 
69gto96z's Avatar
 
Trader Rating: 7
Join Date: May 2006
Location: Rockwall, TX
Posts: 888
Default

Yes the Mallory is all in one. How many degrees are you pulling?
__________________
96 TA M6 - Under the knife for a complete rebuild and LS swap
2002 Camaro SS - Bolt ons, for now
2012 CCSB TX Edition Sierra 4/7 drop

69gto96z is offline   Reply With Quote
Old 01-24-2010, 06:03 PM   #9
On The Tree
Garage is empty, add now
 
Trader Rating: 3
Join Date: Jan 2006
Location: Lakeland
Posts: 182
Default

Right now I'm pulling 4* for a 100 shot. Yes it's bit high but the car has a tune with some advance so we're playing it safe until we can get everything setup and start logging.
garage_queen is offline   Reply With Quote
Old 01-24-2010, 06:33 PM   #10
On The Tree
Garage is empty, add now
 
Trader Rating: 3
Join Date: Jan 2006
Location: Lakeland
Posts: 182
Default

So, anyone running a 6AL with a 8680 for timing control only activated with n2o? How did you wire it? I really don't want to leave the 8680 on all the time, pulling timing for n/a.
garage_queen is offline   Reply With Quote
Old 01-24-2010, 08:02 PM   #11
On The Tree
Garage is empty, add now
 
Trader Rating: 3
Join Date: Jan 2006
Location: Lakeland
Posts: 182
Default

Nevermind, I found info on the MSD site stating that the 8680 cannot be used in this way. If it's installed between the 6AL and the coil, it must be powered on.
garage_queen is offline   Reply With Quote
Old 01-24-2010, 08:02 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Question About Lingenfelter Nitrous controller NCC-002 NitrousLS408 Nitrous Oxide 2 11-12-2014 12:20 PM
Wiring Mallory 685 with pic Cajun ELESS-ONE Nitrous Oxide 3 04-15-2014 12:20 AM
lnc-2000 wiring diagram for 2 step and timing retard tyler ovel Nitrous Oxide 3 01-10-2014 12:08 AM
Lingenfelter lnc-2000 launch control wiring? sweet99ss Nitrous Oxide 15 01-26-2012 02:32 PM
problem hooking up MSD 6AL and timing retard. crAzy95Z28 Generation III External Engine 1 05-06-2006 12:29 PM


Tags
8680, box, control, controler, controller, good, ls1, lt1, msd, nitrous, progressive, retard, switch, timing, working


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off




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


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - JOBS
Emails & Contact Details