Slant *        6        Forum
Home Home Home
The Place to Go for Slant Six Info!
Click here to help support the Slant Six Forum upgrade!
It is currently Thu Dec 14, 2017 7:07 am

All times are UTC-08:00




Post new topic  Reply to topic  [ 11 posts ] 
Author Message
 Post subject: mopar accel race coil
PostPosted: Tue Sep 15, 2015 6:38 am 
Offline
Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1080
Location: CBS Newfoundland Canada
Car Model*:
anybody run the mopar race coil and have it limit rpm under load? last race weekend on Saturday the car ran its best ets when I return sunday morning her first run fell .2sec next .4sec and leveled out at .6sec that's 7.27et to 7.87et. I could do the burnout 6000rpm shift point car would 60ft high 1.5`s but as rpm reached 5000rpms down track the engine would struggle and in high gear would not pass 5000rpm just like it was on the rev limiter but no studder sound. I aliminate the rev limiter box, fuel system, mopar electronic box (gold) , I even drained all the fuel out and put fresh fuel in, only change I bypassed the resister on the coil and ran a full 12volt to the coil and the car seemed to run better. no time slip was last run of the night. any thoughts


Top
   
 Post subject:
PostPosted: Tue Sep 15, 2015 7:35 am 
Offline
Turbo Slant 6

Joined: Sun Jul 20, 2008 10:20 am
Posts: 572
Location: St. Louis Park, MN
Car Model*:
I use the Accel 8140C with an MSD6AL and have never had problems like you describe. It sounds like what can happen when you run solid core wires with an MSD but I don't know if that can happen with a Chrysler box. Did you change plug wires recently?

_________________
If you didn't drive it there, it's not a street car.


Top
   
 Post subject:
PostPosted: Tue Sep 15, 2015 1:22 pm 
Offline
Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1080
Location: CBS Newfoundland Canada
Car Model*:
no never changed wires still have spiral core 8mm Accel .this happen the next morning, the coil was the only thing I didn`t eliminate . when I first installed this coil it came with a single resistor, when I ran with out the resistor, the motor would run for short period then shut down. I search online and this coil has a flash over dam which protects the coil by shuting it down. if I understand the link right. I will not know if it is the coil until I get to the track this weekend I have a lend of a spare.


Top
   
 Post subject:
PostPosted: Thu Jun 15, 2017 5:00 am 
Offline
Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1080
Location: CBS Newfoundland Canada
Car Model*:
I thought I had this fixed last year, changed the dist and car ran great last of season 2016, this past weekend this same problem came back. I can hit rev limiter in water box in 1st & 2nd, off the line hit 6000rpm, pull 2nd under load 5000rpm, pull 3rd 5000rpms. changed dist and next run worked great 6000rpm all gear shift, next run back to previous condition. so I have two new pickup coils coming from rock auto only thing I can see it being. anybody have this happen before? the pickup coils I have been using are old ones from used dist but I have been using for years and never had this happen until now. the gold box ecm is 15yrs old, I did swap for an orange one last year with no change, so I don`t know. maybe time to up grade to msd.


Top
   
 Post subject:
PostPosted: Thu Jun 15, 2017 6:24 am 
Offline
Turbo Slant 6

Joined: Sun Jul 20, 2008 10:20 am
Posts: 572
Location: St. Louis Park, MN
Car Model*:
I know you have a short season and can't afford to waste many runs. Charlie Schmidt had some sort of a problem with one of his cars that went on forever that he finally solved, maybe he has a suggestion. MSDs are not perfect either I have burned out three in recent years. My experience is that Chrysler distributors and boxes are pretty reliable. If you have tried more than one of each that should isolate the problem, but if you changed distributors and it ran okay for a few runs and then went back to 5,000 limit maybe it is something in the primary wiring that is acting up. Sorry I can't be more helpful.

_________________
If you didn't drive it there, it's not a street car.


Top
   
 Post subject:
PostPosted: Thu Jun 15, 2017 1:26 pm 
Offline
SL6 Racer & Moderator
User avatar

Joined: Sat Oct 19, 2002 12:06 pm
Posts: 6467
Location: Silver Springs, Fl.
Car Model*:
I doubt Terry's problem is exactly the same, but maybe will give a clue.
My problem turned out to be bad connections, in the bulkhead connector. Terry, if you are still using the factory bulkhead connector, get rid of it.
If not, I would try completely rewiring the ign circuit. You might have a intermittent bad connection.

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


Top
   
 Post subject:
PostPosted: Thu Jun 15, 2017 6:57 pm 
Offline
Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1080
Location: CBS Newfoundland Canada
Car Model*:
thanks Charlie, I was looking at the connector on the dist to the harness, the female seems a little loose don`t know it losing contact on the one side of the dist would cause this.


Top
   
 Post subject:
PostPosted: Thu Jun 15, 2017 7:05 pm 
Offline
Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1080
Location: CBS Newfoundland Canada
Car Model*:
Charlie should have asked what your problem was before finding a bad connection in the bulkhead block?


Top
   
 Post subject:
PostPosted: Fri Jun 16, 2017 5:11 am 
Offline
SL6 Racer & Moderator
User avatar

Joined: Sat Oct 19, 2002 12:06 pm
Posts: 6467
Location: Silver Springs, Fl.
Car Model*:
terrylittlejohn wrote:
Charlie should have asked what your problem was before finding a bad connection in the bulkhead block?


Intermittant misfire, going down the track. Would idle fine. Could do a full throttle converter stall to 4,000 rpm. Could do a 5,000 rpm burnout, no problem. Car would launch fine, then start to misfire, just past the tree. Not every run, not every day. Drove me crazy for a couple of years. Finally found it when I determined, it had to be the OEM wireing, and removed everything. As soon as I removed the bulkhead connector I saw the problem.
That was something I should have checked early on, as I am aware of the problems with the bulkhead connector.

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


Top
   
 Post subject:
PostPosted: Sat Jun 17, 2017 5:24 pm 
Offline
Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1080
Location: CBS Newfoundland Canada
Car Model*:
i am not using the bulkhead but am using the stock dist connector, the female on the harness side running to the gold box seems to be opened up. maybe where I am losing contact or having a resistance problem.


Top
   
 Post subject:
PostPosted: Mon Jun 26, 2017 3:39 am 
Offline
Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1080
Location: CBS Newfoundland Canada
Car Model*:
another misdiagnosis, build new dist took the car to the track same thing then I noticed trans going straight into 3rd skipping 2nd. I guess at 5000rpm 1/8mile she doesn`t have enough to pull anymore rpms. adjusted the shifter cable and worked great all day. https://youtu.be/0-kb6xdul7c


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 11 posts ] 

All times are UTC-08:00


Who is online

Users browsing this forum: No registered users and 1 guest


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