Go Back   Ford Mustang Forums > Mustang > Classic Mustang > Classic Tech

Welcome to our Mustang forums where Mustangers come together to hang out, discuss and enjoy their favorite Mustang hobby with fellow Mustang enthusiasts. We invite everyone to read, post, and enjoy our Mustang forum as well as the many other sections of our site.

You are currently viewing our forums as a guest. By joining our community you gain access to post topics, communicate with members, upload your photos and access many other special features. Registration is fast, simple and free so why wait, join our Mustang community today! If you have any problems with registration or your account login, please contact support.

Classic Mustangs Tech Forum

Technical discussions specific to 1964-1967, 1968-1970, and 1971-1973 Classic Mustang. Discuss all tech related to in-line six cylinder and V8 powered Vintage Mustangs here.

Classic Forums | Classic Talk | Classic Tech | Classic Pictures | Introductions | Mustang Tech | Mustang Lounge 


Reply   Post New Thread
Unread 06-30-2010   #1 (permalink)
Sleeperstang07 is offline Made Member

Classic Member
4.6L Member
S197 Member


Joined: Jun 2008
Posts: 926 Threads: 184
 Sleeperstang07's Country Flag  View Sleeperstang07's 2 photos
Chicago   Illinois
Sleeperstang07 is on a distinguished road
Default Electric choke wiring question

I recently did the wiring on my car with a friend and he keeps insisting that the electric choke can be wired to the battery with an inline fuse but everyone i have talked to says that I should wire it through a keyed accessory fuse in the fuse box. Can anyone verify whether or not I can run the positive wire of the electric choke off the battery with an inline fuse or if I should run it through the fuse box, and if I run it off the fuse box can someone post a picture as to where I should wire it up.
__________________
Black 2006 GT T-2 Torsen Diff, 3.73 gears, FRPP 90MM CAI, SCT X-Cal 3 tuner/ Speed Inc. dyno tune, FRPP catbacks, Steeda Triaxe w/ Hurst stick and T handle, SVT strut mounts, FRPP strut brace, Steeda UDP, JBA long tube headers, JBA O/R H-pipe, CHE LCAs, CHE anti-squat brackets, Steeda adj. UCA, Steeda heavy duty engine mounts, FRPP AC delete, Shaftmasters aluminum driveshaft, Hotchkis swaybars, Corbeau FX1 Pro

DONE: 1968 Convertible PROJECT candy apple red 289 w/ edelbrock 4bbl 600 cfm
Sleeperstang07 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Unread 06-30-2010   #2 (permalink)
RWP289 is offline Apprentice


Joined: Sep 2009
Posts: 81 Threads: 17
 RWP289's Country Flag
Marietta   Georgia
RWP289 is on a distinguished road
Default

Definitely NOT off the battery!

If you think it through, it becomes obvious that your choke would be "hot" (electrically and mechanically) at all times. It would always keep the choke open, thinking it was warmed up.

You didn't specifiy the year so I will assume the 66 in your profile. There are several safe ways to get "key on" voltage:"

For many years, Ford hooked it up to the "S" (stator) wire coming off the alternator which varies but delivers about 7 volts at idle. Enough for the factory choke but some carbs prefer the full 12 volts.

You can get this from the primary side of the coil if you do not have a ballast (or on the ignition switch side of the ballast if you do.) **

You can get it from the "I" terminal of the standard Ford starter solenoid. **

You can go to the fuse box and look for a fuse that gets voltage only when the key is on and tap into that wire.

There is a great post on the top of this forum page by pcfrisch that includes lots of schematics for classic mustangs. I have attached one from the 66 showing the ignition wiring. Note the "262" wire going to the "I" side of the solenoid and that it is joined with the "16" wire going to the primary side of the coil.


**Some people don't like to use this method because a shorted choke can take out the power to the coil and kill the engine. A small (5-6) amp in-line fuse can solve this problem.
Attached Thumbnails
Electric choke wiring question-66-mustang-wiring.jpg  
RWP289 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 06-30-2010   #3 (permalink)
Sleeperstang07 is offline Made Member

Classic Member
4.6L Member
S197 Member


Joined: Jun 2008
Posts: 926 Threads: 184
 Sleeperstang07's Country Flag  View Sleeperstang07's 2 photos
Chicago   Illinois
Sleeperstang07 is on a distinguished road
Default

Its a 68 listed in my profile. Its an edelbrock 600 cfm carb and the instructions specifically list not to run it off the coil or the solenoid and it does need the full 12 volt source so I think I will try to run it off the fuse box, however im not all that literate when it comes to electrics or reading the diagrams so if anyone could dumb it down for me that would be great.
__________________
Black 2006 GT T-2 Torsen Diff, 3.73 gears, FRPP 90MM CAI, SCT X-Cal 3 tuner/ Speed Inc. dyno tune, FRPP catbacks, Steeda Triaxe w/ Hurst stick and T handle, SVT strut mounts, FRPP strut brace, Steeda UDP, JBA long tube headers, JBA O/R H-pipe, CHE LCAs, CHE anti-squat brackets, Steeda adj. UCA, Steeda heavy duty engine mounts, FRPP AC delete, Shaftmasters aluminum driveshaft, Hotchkis swaybars, Corbeau FX1 Pro

DONE: 1968 Convertible PROJECT candy apple red 289 w/ edelbrock 4bbl 600 cfm
Sleeperstang07 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 06-30-2010   #4 (permalink)
jbyrd2215 is offline Apprentice

Classic Member


Joined: Feb 2010
Posts: 74 Threads: 9
 jbyrd2215's Country Flag  View jbyrd2215's 18 photos
Mobile   Alabama
jbyrd2215 is on a distinguished road
Default

SleeperStang07,

Any ignition wire that is hot while key is on will work or the "I" terminal as mentioned before. Go to a parts store and buy a $9.00 test light to check which wires or fuses are hot while the key is in the on position if you don't like reading wire diagrams.
jbyrd2215 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 06-30-2010   #5 (permalink)
Rigger is offline Apprentice


Joined: Jul 2008
Posts: 201 Threads: 10
 Rigger's Country Flag
Aurora   Colorado
Rigger is on a distinguished road
Default

I wired mine through a keyed source in the fuse box. Edelbrocks website also says to do it this way. Whatever you do, dont wire it to the coil. Sapping electricity from the coil will make the car run like it has a potato stuffed in the tail pipe. Ask me how I know
Rigger is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 06-30-2010   #6 (permalink)
PaulS is offline Made Member


Joined: Mar 2009
Posts: 1,815 Threads: 3
 PaulS's Country Flag
Seattle   Washington
PaulS is on a distinguished road
Default

Running a wire from the "I" terminal of the solenoid is the same as running it off the coil - don't do it!
You can run it of the "IGN" terminal of the switch or any wire that runs from that terminal other than the actual ignition wire to the coil. Do not run it off an accessory wire - one that is "ON" when the switch is in the accessory position.
Both the Edelbrock and Holley carbs need the full battery volts. The Ford carbs connect to the stator wire on the alternator - but it is not a full 12volts.
__________________
1966 Coupe
351W
Top Loader
rebuilt, rewired, modified for slalom and hill climb
No racing - just a fun car built by and for me.
Project in process
PaulS is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 07-01-2010   #7 (permalink)
butchd88 is online now PONY Member

Classic Member


Joined: Oct 2008
Posts: 435 Threads: 104
 butchd88's Country Flag  View butchd88's 3 photos
Naples   Florida
butchd88 is on a distinguished road
Default

i spliced it into the hot side of the blower motor under the hood,it works great and is fused.
butchd88 is online now  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 07-01-2010   #8 (permalink)
Sleeperstang07 is offline Made Member

Classic Member
4.6L Member
S197 Member


Joined: Jun 2008
Posts: 926 Threads: 184
 Sleeperstang07's Country Flag  View Sleeperstang07's 2 photos
Chicago   Illinois
Sleeperstang07 is on a distinguished road
Default

Quote:
Originally Posted by butchd88 View Post
i spliced it into the hot side of the blower motor under the hood,it works great and is fused.
Thanks, I think im going to try this one.
__________________
Black 2006 GT T-2 Torsen Diff, 3.73 gears, FRPP 90MM CAI, SCT X-Cal 3 tuner/ Speed Inc. dyno tune, FRPP catbacks, Steeda Triaxe w/ Hurst stick and T handle, SVT strut mounts, FRPP strut brace, Steeda UDP, JBA long tube headers, JBA O/R H-pipe, CHE LCAs, CHE anti-squat brackets, Steeda adj. UCA, Steeda heavy duty engine mounts, FRPP AC delete, Shaftmasters aluminum driveshaft, Hotchkis swaybars, Corbeau FX1 Pro

DONE: 1968 Convertible PROJECT candy apple red 289 w/ edelbrock 4bbl 600 cfm
Sleeperstang07 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Reply   Post New Thread



Thread Tools



Mustang Photos
Mustang Links    Top Sites    RSS    Link To Us    Add to Favorites    Archive    Terms of Use    Site Rules    Privacy    Contact    Sponsors    Advertise   
AllFordMustangs is not affiliated with or endorsed by Ford Motor Company. ©Copyright 2002-2011 All Auto Enthusiasts Network

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162