The Ford Torino Page Homepage
Forum Home Forum Home > Engine Specific Forum > Small Block Forum
  New Posts New Posts RSS Feed - '76 timing & plug gap questions
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Topic Closed'76 timing & plug gap questions

 Post Reply Post Reply
Author
Message
Zebra 3 View Drop Down
Senior Member
Senior Member
Avatar

Joined: 11-February-2012
Location: Topeka, Ks.
Status: Offline
Points: 383
Direct Link To This Post Topic: '76 timing & plug gap questions
    Posted: 16-June-2012 at 9:27AM
I have removed all of the pollution control devices (1976 351 Windsor 2 bbl) except for the PCV valve and crankcase breather filter....here's my questions:

1. Would I benefit by changing the timing from 12 degrees BTDC (as per under hood specifications sticker) to 6 degrees BTDC (1972 351 Windsor spec.) ...I have also seen a 13 degree mentioned in these forums as well for this particular engine...unknown results.

2. Also, any benefit with changing the gaps of the plugs from .054 (1976 spec) to .034 (1972 spec)

I understand that in 1975 the 351 Windsor went to an electronic ignition, so was the electronic ignition the reason for the change in timing and gap from previous years? Was there a different stock cam in the 351 Windsor prior to 1975? Can I use the 1972 specifications with an electronic ignition and get better performance..or will it make it worse.

"I deeply admire the men who founded this country, and I think we ought to know more about them and how they lived and the force and courage they had.
Henry Ford. 1926
Brian Conn
'76 Torino
Back to Top
Mark S. View Drop Down
Senior Member
Senior Member
Avatar

Joined: 22-April-2012
Location: EHT, NJ
Status: Offline
Points: 374
Direct Link To This Post Posted: 16-June-2012 at 12:14PM
Electronic ignition requires larger plug gap. Not sure about timing.
Mark
1977 Ltd II "Eltee"
1984 Mustang ragtop
2004 Grand Marquis Ultimate Edition
71 Torino GT 429CJ (sold too many years ago to count...)
Back to Top
Robbdtme View Drop Down
Senior Member
Senior Member
Avatar

Joined: 06-June-2012
Location: Central WI
Status: Offline
Points: 765
Direct Link To This Post Posted: 17-June-2012 at 11:12AM
Both would be a step backwards. The wider gap gives you a hotter more complete spark. Delaying timing will reduce power as well.

One of the things I feel is most overlooked is your distributer itself. Pop the cap and checkout your mechanical advance springs and the vacuum advance mech. Springs get stretched and sloppy with age and the vacuum advance linkage arm hole can wear causing some slop. Make sure everything is clean and moves freely. You could be amazed at what a little TLC here can do!
Back to Top
Zebra 3 View Drop Down
Senior Member
Senior Member
Avatar

Joined: 11-February-2012
Location: Topeka, Ks.
Status: Offline
Points: 383
Direct Link To This Post Posted: 17-June-2012 at 4:08PM

Thanks for the info. Somewhere in my head I had the idea that using the pre electronic specs with a gutted pollution control system on the '76 would add to its performance...somewhat.

Originally posted by Robbdtme Robbdtme wrote:

.................
One of the things I feel is most overlooked is your distributor itself. Pop the cap and checkout your mechanical advance springs and the vacuum advance mech. Springs get stretched and sloppy with age and the vacuum advance linkage arm hole can wear causing some slop. Make sure everything is clean and moves freely. You could be amazed at what a little TLC here can do!

I have my doubts that the linkage arm hole has any wear (sitting at just over 83,000 original miles on the meter) BUT I do have one question about the spring....where would I go to get a replacement spring? I would imagine that after 36 years it could have gotten stretched some and sloppy.

"I deeply admire the men who founded this country, and I think we ought to know more about them and how they lived and the force and courage they had.
Henry Ford. 1926
Brian Conn
'76 Torino
Back to Top
Robbdtme View Drop Down
Senior Member
Senior Member
Avatar

Joined: 06-June-2012
Location: Central WI
Status: Offline
Points: 765
Direct Link To This Post Posted: 18-June-2012 at 10:12AM
http://www.summitracing.com/parts/MRG-925D/


Back to Top
stanman View Drop Down
Senior Member
Senior Member


Joined: 23-March-2007
Location: Nova Scotia, Ca
Status: Online
Points: 1369
Direct Link To This Post Posted: 18-June-2012 at 10:44AM
Back to Top
Zebra 3 View Drop Down
Senior Member
Senior Member
Avatar

Joined: 11-February-2012
Location: Topeka, Ks.
Status: Offline
Points: 383
Direct Link To This Post Posted: 19-June-2012 at 12:55AM

...I knew that I had read about making a change to the timing somewhere......I re-discovered it! It ties in with the "advance curve kit springs" mentioned in this thread.  An adjustment is made to the distributor , itself, adding to the performance of the engine as well as miles per gallon.Big smile 

This is from a Jeep site...turns out the distributors that would be found in our cars are the ticket! Here is the link:

http://www.jeepforum.com/forum/f8/prep-teamrush-258-advance-curve-kit-583327/

"I deeply admire the men who founded this country, and I think we ought to know more about them and how they lived and the force and courage they had.
Henry Ford. 1926
Brian Conn
'76 Torino
Back to Top
Robbdtme View Drop Down
Senior Member
Senior Member
Avatar

Joined: 06-June-2012
Location: Central WI
Status: Offline
Points: 765
Direct Link To This Post Posted: 19-June-2012 at 9:33AM
That is probably the best  distributor  article I have seen! Good info! Everyone should check it out.
Thanks for sharing Zebra 3!
Back to Top
Zebra 3 View Drop Down
Senior Member
Senior Member
Avatar

Joined: 11-February-2012
Location: Topeka, Ks.
Status: Offline
Points: 383
Direct Link To This Post Posted: 07-July-2012 at 12:54PM
Originally posted by Zebra 3 Zebra 3 wrote:

...I knew that I had read about making a change to the timing somewhere......I re-discovered it! It ties in with the "advance curve kit springs" mentioned in this thread.  An adjustment is made to the distributor , itself, adding to the performance of the engine as well as miles per gallon.Big smile 

This is from a Jeep site...turns out the distributors that would be found in our cars are the ticket! Here is the link:

http://www.jeepforum.com/forum/f8/prep-teamrush-258-advance-curve-kit-583327/

....Actually I have just stumbled across what I had "originally" read....it was right under my nose the whole time and its right here in the forums!! http://forum.grantorinosport.org/bubbas-351m-400-website-rehosted-here_topic3685&FID=6&PR=3.html

Even though this post/link applies to the 351-400 Modified's , there are areas discussed that will work with the other engine families as well......well worth checking out!

"I deeply admire the men who founded this country, and I think we ought to know more about them and how they lived and the force and courage they had.
Henry Ford. 1926
Brian Conn
'76 Torino
Back to Top
Robbdtme View Drop Down
Senior Member
Senior Member
Avatar

Joined: 06-June-2012
Location: Central WI
Status: Offline
Points: 765
Direct Link To This Post Posted: 09-July-2012 at 6:26PM
I will toss in if you changed your camshaft or Carb The timing specs are useless.  Hook a good vacuum gauge to it and tune for max vacuum reading without pinging.

In my case I have a pretty radical cam 524 lift 274 duration 110 lobe with a barry grant speed demon 625 cfm. On premium fuel about 16 advanced on timing works well for me.  Running low compression 8.7:1.
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.078 seconds.