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  •  » throttle pop up solenoid for AC

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    7/31/2021 1:52 PM  #1

    Cab4word67
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    From: Portland, Ore
    Registered: 4/06/2019
    Posts: 1,154

    throttle pop up solenoid for AC

    Hello out there everyone. I have been driving my 65 with the new motor a bunch now and needed to add a throttle pop up solenoid for when the AC is on, otherwise it will idle to low in gear, like from 650 down to 500. This is in a built 289 with a c4 tranny and a lumpy cam. I wired it to a on/off switch for now but would like to tag it to the AC. not sure if I can connect to the wire that goes to the compressor or not. 

    Slammed Big Blue, ran over the varmints that messed with the Stang. Now all is good in the NW
     

    7/31/2021 2:42 PM  #2

    Bolted to Floor
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    From: Houston, Texas
    Registered: 4/01/2013
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    Re: throttle pop up solenoid for AC

    I have the solenoid and tied it t the power for the compressor so they turn on together. Thanks running a vintage air unit and the compressor is on a relay. I haven’t had any issues to date.

    John  -- 67 Mustang Coupe 390 5 speed
     

    8/01/2021 7:22 AM  #3

    BobE
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    From: White Plains, NY
    Registered: 4/04/2013
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    Re: throttle pop up solenoid for AC

    My idle is about 800-900 RPM, the RPM drops a little but not enough to cause an issue when the A/C (Vintage system) compressor kicks in.  I would think adding a relay to the A/C compressor feed to supply a separate feed (w/fuse protection) to the solenoid would not cause any “electrical” issues.

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    8/01/2021 10:02 AM  #4

    Cab4word67
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    From: Portland, Ore
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    Re: throttle pop up solenoid for AC

    Thanks guys, I was thinking that wire from the VA system to the compressor too, just wasn't sure. Since my wire is under the dash now I think I will send it over and under behind the dash and grab that wire. 
    Is my idle to low at 650 in gear for a 289 with a very lumpy cam ( its so lumpy it shacks the car when sitting at the light ) and 9.5 to 1 pistons? Its about 850 in park, all w/o AC on. Runs great though when you step on the gas hell yes.

    Slammed Big Blue, ran over the varmints that messed with the Stang. Now all is good in the NW
       •Thread Starter
     

    8/01/2021 10:58 AM  #5

    rpm
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    From: Bakersfield, Ca
    Registered: 9/17/2013
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    Re: throttle pop up solenoid for AC

    When I was running an automatic,the Ford manual gave info to set the idle as to when you put it in drive it ran at a certain RPM. I think mine was around 700.

    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

    8/01/2021 2:41 PM  #6

    6sally6
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    From: Surfside Beach,SC
    Registered: 4/02/2013
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    Re: throttle pop up solenoid for AC

    Does it want to 'creep' when at a traffic light and in gear?!
    No need to shift into N when sitting at traffic light?!
    700 RPM is 'just' 50 more butt make a great deal of difference with the AC blowing!
    I'd idle-it-up to 700-ish and see if the problem goes away.
    6sally6

    Snotty idling camshafts are 'the ultimate', ain't they!!!!!

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    8/02/2021 9:43 PM  #7

    Cab4word67
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    From: Portland, Ore
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    Re: throttle pop up solenoid for AC

    Thanks 6sally6. Yes I love the idle and 700 rpms seems to be nice thats with the help of the pop up. This SBF really goes with or without the AC blasting

    Slammed Big Blue, ran over the varmints that messed with the Stang. Now all is good in the NW
       •Thread Starter
     

    8/04/2021 12:50 PM  #8

    John Ha
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    From: Mitchell, SD
    Registered: 4/02/2013
    Posts: 932

    Re: throttle pop up solenoid for AC

    Gotta ask - where did you get the solenoid?

    TIA

    Founding Member of the Perpetually Bewildered Society
     

    8/04/2021 7:57 PM  #9

    Bolted to Floor
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    From: Houston, Texas
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    Re: throttle pop up solenoid for AC

    John Ha wrote:

    Gotta ask - where did you get the solenoid?

    TIA

    I bought it and a mounting bracket through Summit. Both are made by Holley.

    John  -- 67 Mustang Coupe 390 5 speed
     

    8/06/2021 5:18 AM  #10

    John Ha
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    From: Mitchell, SD
    Registered: 4/02/2013
    Posts: 932

    Re: throttle pop up solenoid for AC

    Bolted to Floor wrote:

    John Ha wrote:

    Gotta ask - where did you get the solenoid?

    TIA

    I bought it and a mounting bracket through Summit. Both are made by Holley.

    Thanks!

    Founding Member of the Perpetually Bewildered Society
     

    9/07/2021 10:36 PM  #11

    Cab4word67
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    From: Portland, Ore
    Registered: 4/06/2019
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    Re: throttle pop up solenoid for AC

    I got mine from a vintage 72/351 that the AC dosnt work anymore. Been driving the car a bunch more with the hot weather and even with the AC cranked we dont go higher than 210. All my hot problems went away with the new engine. I love this built to the bones 289.

    Slammed Big Blue, ran over the varmints that messed with the Stang. Now all is good in the NW
       •Thread Starter
     

     

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