1. Pclancy

    Pclancy Active Member FCBO Gold Member

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    I'd like to experiment (?) with a fast idle solenoid to see how that reduces or eliminates the trembling my 400 motor (with an Edelbrock 1406 carb) demonstrates at idle with the A/C on. I have a 77 Newport.

    The trembling is just enough to be annoying and noticeable. This girl deserves better. There is no trembling without the A/C. I have the original compressor and don't want to spend the big bucks to replace it. The AC--converted to R-134A--works well, although it doesn't get super cold. Around 58F.

    Can someone help me research the correct part number from Summit? Do I need a special bracket? I want to connect the solenoid so that it only steps up the idle with the AC on. And not by much.

    Thanks Everyone!

    Peter
     
  2. rkrochen

    rkrochen Well-Known Member

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    Check out Summit they have a line of them.
     
  3. rkrochen

    rkrochen Well-Known Member

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    This is for the 8059 carb. Not sure if the bracket is correct but they should be able to help you. It will help.
    upload_2019-8-12_8-35-28.jpeg

    upload_2019-8-12_8-34-5.jpeg
     
  4. Pclancy

    Pclancy Active Member FCBO Gold Member

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    Many thanks!
     
  5. 73 T&C

    73 T&C Senior Member FCBO Gold Member

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    Before you spend the big bucks.... what is the idle rpm with a/c on??? And what is it off?
     
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  6. commando1

    commando1 Mr. Normal FCBO Gold Member

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    When I converted to a lightweight Sanden, I couldn't believe how much smoother it idled.
    I've had cars with the hi-idle solenoid. Hated them. Torque converter hated them, too. Reconsider dumping the R2.
     
  7. Pclancy

    Pclancy Active Member FCBO Gold Member

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    The solenoid was not cheap, like about $150. But it has made a big difference in how she idles with the a/c on. I was afraid that she would idle too high, but no, she just purrs at all times now. I'm a happy camper.
     
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  8. rkrochen

    rkrochen Well-Known Member

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    That’s great news I was pretty sure it would. Where did you take the power from.
     
  9. Pclancy

    Pclancy Active Member FCBO Gold Member

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    From the A/C clutch.
     
  10. rkrochen

    rkrochen Well-Known Member

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    Perfect that would be my recommendation. What rpm did you set it too.
     
  11. Pclancy

    Pclancy Active Member FCBO Gold Member

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    Let me get back to you on that; need to ask my mechanic.