Slant *        6        Forum
Home Home Home
The Place to Go for Slant Six Info!
Click here to help support the Slant Six Forum!
It is currently Sat Mar 15, 2025 9:03 am

All times are UTC-07:00




Post new topic  Reply to topic  [ 21 posts ]  Go to page 1 2 Next
Author Message
 Post subject: ignition questions
PostPosted: Thu Mar 16, 2006 3:03 pm 
Offline
1 BBL (New)

Joined: Thu Mar 16, 2006 2:49 pm
Posts: 4
Location: Woodleaf, NC
Car Model:
I have a super six set up in my 87 pick up. I am using the holley 2 bbl, MSD coil, and wires, 2 1/4 exhaust thru a DynaFlo muffler . No smog stuff at all. I can't find info on the ign set up. I think the lack of sensors and vacumn may be keeping my timing retarded. My gas mileage is terrible 13mpg. No top end, have to down shift to 3 to pull hills. Engine has 100k original miles, no other problems. Any suggestions are welcome. Thank you.


Top
   
 Post subject: Re: ignition questions
PostPosted: Thu Mar 16, 2006 3:13 pm 
Offline
Board Sponsor
User avatar

Joined: Tue Jan 14, 2003 2:37 pm
Posts: 605
Location: Fairbanks, AK
Car Model:
Quote:
I have a super six set up in my 87 pick up. I am using the holley 2 bbl, MSD coil, and wires, 2 1/4 exhaust thru a DynaFlo muffler .
Did you install the 2 bbl setup, or was it installed on the truck when you got it?
Quote:
No smog stuff at all.
Does this include the SCC (spark control computer), which would be located behind the battery in the driver side fender? Do you still have the SCC distributor installed? It would have two pickups (two sets of wires from the cap) and no vacuum advance pod.
Quote:
I can't find info on the ign set up. I think the lack of sensors and vacumn may be keeping my timing retarded. My gas mileage is terrible 13mpg. No top end, have to down shift to 3 to pull hills.
If you are still running the SCC, it sounds like it is stuck in 'limp' mode, which is a default setting that locks out any ignition timing advance. The computer not receiving any input from no-longer existing sensors could trigger it to go into 'limp' mode.

Have you tried Checking For Codes? It will probably spit a whole slough of them at you. Without the proper sensors in place, your best bet is probably to convert to standard electronic ignition (or GM HEI electronic ignition, or aftermarket--do a search and you will find a wealth of information on these conversions).

-S/6

_________________
The "Silver Bullet"
87 Ram D150
Image


Top
   
 Post subject:
PostPosted: Thu Mar 16, 2006 4:20 pm 
Offline
SL6 Racer & Moderator
User avatar

Joined: Sat Oct 19, 2002 12:06 pm
Posts: 8819
Location: Silver Springs, Fl.
Car Model:
Sorry, Super6. The engine computers on Chrysler Corp vehicles, with carbs, are 1st generation "dumb" computers. Thay do not have the ability to "talk" to "code readers", scan tools, or flash check engine lites. It wasn't untill fuel injection, that the computers could talk back.

_________________
Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225


Top
   
 Post subject:
PostPosted: Thu Mar 16, 2006 7:02 pm 
Offline
Board Sponsor
User avatar

Joined: Tue Jan 14, 2003 2:37 pm
Posts: 605
Location: Fairbanks, AK
Car Model:
Quote:
Sorry, Super6. The engine computers on Chrysler Corp vehicles, with carbs, are 1st generation "dumb" computers. Thay do not have the ability to "talk" to "code readers", scan tools, or flash check engine lites. It wasn't untill fuel injection, that the computers could talk back.
I have to disagree. I pulled codes from my '87 when it still had the SCC compter. All codes may not apply, but it did flash codes, ending with 55. :?


Top
   
 Post subject:
PostPosted: Thu Mar 16, 2006 8:49 pm 
Offline
SL6 Racer & Moderator
User avatar

Joined: Sat Oct 19, 2002 12:06 pm
Posts: 8819
Location: Silver Springs, Fl.
Car Model:
Are you sure, you are not thinking about a FWD car, or a V-6? On those, that had FI, you were able to cycle the ign switch (on and off 3 times), to access codes. I just went back into my manuals (been awhile since I have had hands on), to double check my statement, and found no reference on pulling codes. My daily driver is a 88 Diplomat with the SSC, and it does not even have a "check engine lite". I will try to double check, on a friends truck this weekend.

_________________
Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225


Top
   
 Post subject:
PostPosted: Thu Mar 16, 2006 8:52 pm 
Offline
Turbo EFI
User avatar

Joined: Sat Jun 19, 2004 8:01 pm
Posts: 1937
Location: Rhine, GA
Car Model:
My 87 Fifth Avenue has no check engine light either. It has the Electronic Fuel Control System. Another iteration of the good ole shake n' bake computer.

_________________
82 D150-225/727
02 Dakota-3.9/5 speed
87 GMC C7000-8.2 Detroit Diesel/5+2


Top
   
 Post subject:
PostPosted: Thu Mar 16, 2006 9:11 pm 
Offline
3 Deuce Weber
User avatar

Joined: Fri Jun 27, 2003 12:36 am
Posts: 90
Location: Raleigh, North Carolina
Car Model:
You'll need to get the smog stuff back on the truck to pass NC safety inspection. That is assuming it originally came with it.


Top
   
 Post subject:
PostPosted: Fri Mar 17, 2006 3:10 am 
Offline
1 BBL (New)

Joined: Thu Mar 16, 2006 2:49 pm
Posts: 4
Location: Woodleaf, NC
Car Model:
Super 6, yes I did the install myself. Yes it still has the SCC unit and that was what I thought. What year distributor and ign module would be the best for my truck?


Top
   
 Post subject:
PostPosted: Fri Mar 17, 2006 6:23 am 
Offline
Board Sponsor
User avatar

Joined: Tue Jan 14, 2003 2:37 pm
Posts: 605
Location: Fairbanks, AK
Car Model:
Quote:
Super 6, yes I did the install myself. Yes it still has the SCC unit and that was what I thought. What year distributor and ign module would be the best for my truck?
Anything post-points and pre-lean burn/SCC. Roughly any car or truck from '74-'79.

Charlie, I am pretty sure. My '87 was my first vehicle, and it and my 2000 Ram are the only two vehicles I have ever owned. :?
I remember when I first read about obtaining trouble codes (from a Haynes manual of all places :oops: ) and being amazed my truck was able to do such a thing. If I still had the factory instrument cluster, I would look to see which light it was that flashed. It was not a 'check engine' light, there was no such animal. All I recall is it was a red light in teh middle/left of the cluster.
-S/6


Top
   
 Post subject:
PostPosted: Fri Mar 17, 2006 7:51 am 
Offline
Board Sponsor & Contributor

Joined: Thu Oct 31, 2002 5:39 pm
Posts: 24525
Location: North America
Car Model:
Quote:
I pulled codes from my '87 when it still had the SCC compter. All codes may not apply, but it did flash codes, ending with 55.
Must've been an interesting nonstandard computer unit, then, because flash codes did not officially arrive until EFI. You didn't discard a rare, one-of-none, super-double-intergalactic-secret factory prototype, did you? :lol:

_________________
一期一会
Too many people who were born on third base actually believe they've hit a triple.

Image


Top
   
 Post subject:
PostPosted: Fri Mar 17, 2006 11:12 am 
Offline
Board Sponsor
User avatar

Joined: Tue Jan 14, 2003 2:37 pm
Posts: 605
Location: Fairbanks, AK
Car Model:
Quote:
Must've been an interesting nonstandard computer unit, then, because flash codes did not officially arrive until EFI. You didn't discard a rare, one-of-none, super-double-intergalactic-secret factory prototype, did you? :lol:

Mock me if you wish. All I know is what I have actually done, on my own 1987 Dodge Ram, in the past.


Top
   
 Post subject:
PostPosted: Fri Mar 17, 2006 12:09 pm 
Offline
Board Sponsor & Contributor

Joined: Thu Oct 31, 2002 5:39 pm
Posts: 24525
Location: North America
Car Model:
Quote:
Mock me if you wish. All I know is what I have actually done, on my own 1987 Dodge Ram, in the past.
I'm not mocking you, I'm mocking Chrysler Corp. :roll:

_________________
一期一会
Too many people who were born on third base actually believe they've hit a triple.

Image


Top
   
 Post subject:
PostPosted: Fri Mar 17, 2006 12:34 pm 
Offline
Board Sponsor
User avatar

Joined: Wed Oct 23, 2002 8:48 pm
Posts: 366
Location: Southeastern PA
Car Model:
Quote:
Quote:
Mock me if you wish. All I know is what I have actually done, on my own 1987 Dodge Ram, in the past.
I'm not mocking you, I'm mocking Chrysler Corp. :roll:
My Dart has a Plymouth "flying coffin" horn button...I always wondered if it came that way from the factory. :shock: So who knows what was put into your car at the time of assembly.

_________________
'68 Dodge Dart 4dr Sedan
Image


Top
   
 Post subject:
PostPosted: Fri Mar 17, 2006 1:38 pm 
Offline
Turbo Slant 6

Joined: Mon May 09, 2005 7:39 pm
Posts: 904
Car Model:
Quote:
Exceptio probat regulam in casibus non exceptis
"the exception that proves the rule"


.......I like "when in doubt play dead" better myself.


Top
   
 Post subject:
PostPosted: Mon Mar 20, 2006 1:33 pm 
Offline
1 BBL (New)

Joined: Thu Mar 16, 2006 2:49 pm
Posts: 4
Location: Woodleaf, NC
Car Model:
Super 6, I have a 79 distributor w/vac advance and a GM HEI 4 pin module. Is there anywhere with wiring instruction or diagrams to do away with the SCC? which wires from the 10 pin connector will be used for the HEI module? Thanks in advance.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 21 posts ]  Go to page 1 2 Next

All times are UTC-07:00


Who is online

Users browsing this forum: Bing [Bot], Majestic-12 [Bot] and 7 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited