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12v Electric Choke Wire Help

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FormerBigDaddy

Re: 12v Electric Choke Wire Help

You guys are wild. Following closely...

Once you guys decide on what's needed and show me how to put it together I'm confident I can handle it.

Thank you!

1984 F350 460 Auto

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

Check out the page now to see what questions you have.

All - Note that I had to invert the normal Bosch relay drawing to fit with Mictuning's wire colors and terminal designations.

Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

kramttocs

Re: 12v Electric Choke Wire Help

Administrator

Nice job Gary!

And if one cares about it and really wants to, for the choke and stator wires (the battery and ground may be close enough) they can remove the terminals from the sockets and crimp on your own so you don't have any splices/inline connectors.

These would need verified:

Tyco 42238-2
Tyco 180384-2

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

Rembrant

Re: 12v Electric Choke Wire Help

kramttocs wrote

And if one cares about it and really wants to, for the choke and stator wires (the battery and ground may be close enough) they can remove the terminals from the sockets and crimp on your own so you don't have any splices/inline connectors.

Do you have a link to the single relays?
And can you confirm that the 7v from the Alternator will pull in and hold the relay closed OK?

1994 F150 4x2 Flareside. 5.0 w/MAF, 4R70W, stock.
1984 F150 4X2 Flareside. Mild 302 w/ 5spd. Sold.
1980 F150 4X4 Flareside. 300i6 w/ 5spd. Sold in 2021.
1980 F100 4X2 Flareside. 351w/2bbl w/NP435. Sold in 1995

kramttocs

Re: 12v Electric Choke Wire Help

Administrator

Hey Cory,
Since the listings fluctuate, rather than a link I'd do a search for 'fused relay' on eBay. There is a single for 7.xx USD right now. 6 packs seem to be the best per unit price by far though.

I've seen posts both ways regarding the 7v question. Some say 8v is needed but others say it works fine with 5v. I've never tried so can't comment on it and will defer to Gary.
Before this thread, which I am thankful for as the 460 option is cleaner for me, i was going to install another oil pressure switch, use the LG\R wire to trigger a relay that would go to the new oil pressure switch and then on to the choke. That's just another option and does use 12v to trigger the relay but with the added overhead of the switch.

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

In my experience the stator voltage has always pulled the relay in. But, that's a good question on these new relays as it may vary by relay manufacturer.

Scott, could you do a test since you have the relays?

Gary, AKA "Gary fellow": Profile

kramttocs

Re: 12v Electric Choke Wire Help

Administrator

You bet!
Just did a quick test with a continuity tester and a trickle charger that has settings for 6v 2amp, 12v 2amp, and 12v 6amp. At all three settings the relay clicked and tester light lit up.

My relays aren't the same seller brand as listed but it's likely the specs are close if not the same.

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

kramttocs

Re: 12v Electric Choke Wire Help

Administrator

To be exact, these are the ones I have:
https://www.ebay.com/itm/253167690800

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

In reply to this post by kramttocs

I just tried on my bench power supply and my Tyco relays come in at about 6.5V. But that's a pure DC and I think the stator puts out a pulsing DC. And it is that pulse that gets read as 7V by most DVM's.

Anyway, it would be good to know that similar relays to those in the link come in using the stator. Thanks!

Gary, AKA "Gary fellow": Profile

FormerBigDaddy

Re: 12v Electric Choke Wire Help

Amazon delivering tomorrow so I should be able to knock this out. For the record, based on the schematic, the green wire won’t be used? What should I do with it? Clip it off?

1984 F350 460 Auto

kramttocs

Re: 12v Electric Choke Wire Help

Administrator

Right, that's the NC that you don't need. I'd take a small screwdriver and remove the wire and terminal from the socket.

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

kramttocs wrote

Right, that's the NC that you don't need. I'd take a small screwdriver and remove the wire and terminal from the socket.

Exactly.

Gary, AKA "Gary fellow": Profile

FormerBigDaddy

Re: 12v Electric Choke Wire Help

In reply to this post by FormerBigDaddy

Worked like a charm!!! First time ever with 12v to my edelbrock. Thank you guys so much!!!

1984 F350 460 Auto

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

Well done! Glad it worked for you.

Gary, AKA "Gary fellow": Profile

kramttocs

Re: 12v Electric Choke Wire Help

Administrator

I was hooking up the choke wiring today and was going the route of the 460 fuel pump relay wire. I'd mentioned earlier in this thread that the load on that wire is minimal since it was used for just the relay but I got to looking at it and looks like that is only 18awg wire. The 15amp fuse it hooks to is also used for some buzzers and indicators. While it would likely be fine, since Holley says to use a 10amp fuse and online resources say the choke can pull 7amps initially and then taper down to 1.5ish, I started having second thoughts about adding more to that size of wire. Ended up going the relay route using 18awg for the trigger and 12awg for the load. 12awg is definitely overkill but I went with it due to the length of the run as I am running it across the core support and then to the engine alongside the same harness as the distributor.
Again, it may all be unnecessary and the 18awg may work fine but I just wanted to report back since I made that comment about the added load being fine previously and ended up going against it.

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

The choke is gonna get lots of juice.

But seriously, overkill is a good idea on wire size.

Gary, AKA "Gary fellow": Profile

kramttocs

Re: 12v Electric Choke Wire Help

Administrator

Haha yeah. If it would have been 16 I probably would have left it. The 18 just felt so thin that it was bugging me adding to it.

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

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