Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

tachometer

Discussion in 'The Garage' started by Janitorjim8, Nov 20, 2005.

  1. Janitorjim8

    Janitorjim8 1/2 ton status

    Joined:
    Feb 21, 2005
    Posts:
    215
    Likes Received:
    0
    Location:
    Illinois
    So i've had a Sunpro tach for a while... I'm going to hook it up soon. I think i've lost the directions, any one here installed one and have any tips or procedures.. i know that the white wire splices into the white wire going from the distributor to the firewall... or am i wrong there too lol. By the way its a 90 k5 with a 350
     
  2. hunterguy86

    hunterguy86 1/2 ton status

    Joined:
    Jan 10, 2005
    Posts:
    2,477
    Likes Received:
    0
    Location:
    San Marcos, Texas
    Is it HEI? If it is it has a tach port on it where you just plug it in. Then you gotta run a power, power for the light and a ground. Its very easy.
     
  3. hunterguy86

    hunterguy86 1/2 ton status

    Joined:
    Jan 10, 2005
    Posts:
    2,477
    Likes Received:
    0
    Location:
    San Marcos, Texas
    Sorry just noticed the year model in your post. Mines carbed but seems like it would still be the same on the dizzy.
     
  4. Janitorjim8

    Janitorjim8 1/2 ton status

    Joined:
    Feb 21, 2005
    Posts:
    215
    Likes Received:
    0
    Location:
    Illinois
    hunterguy- where is this tach port, it is hei.
     
  5. 78Suburban

    78Suburban 1/2 ton status

    Joined:
    Jul 4, 2005
    Posts:
    2,609
    Likes Received:
    0
    Location:
    Georgia
    On the right side of your distributr is a wire. Close to this wire, it says "tach" and there is a terminal which you can plug into.
    You can download the sunpro instructions somewhere, because I did it a few years ago when someone gave me a free sunpro tach.
     
  6. Janitorjim8

    Janitorjim8 1/2 ton status

    Joined:
    Feb 21, 2005
    Posts:
    215
    Likes Received:
    0
    Location:
    Illinois
    thank you very much
     
  7. gmcjimmy90

    gmcjimmy90 Registered Member

    Joined:
    Jul 3, 2005
    Posts:
    76
    Likes Received:
    0
    Location:
    arkansas
    it should have an external coil and you need to hook it up on the wire that is coming off of it (the one not hooked up to anything else).
     
  8. 89GMCSuburban

    89GMCSuburban 1/2 ton status

    Joined:
    Nov 15, 2001
    Posts:
    3,005
    Likes Received:
    0
    Location:
    Thornton, CO
    I thought the white wire is for your lights and the green wire is for the signal....
     
  9. keifer

    keifer Registered Member

    Joined:
    Nov 1, 2005
    Posts:
    16
    Likes Received:
    0
    Location:
    MD-Phoenix someday
    bingo
     
  10. JEBSR

    JEBSR 1/2 ton status

    Joined:
    Dec 23, 2004
    Posts:
    1,541
    Likes Received:
    0
    Location:
    Clarksville, TN
    On the external HEI you want to hook the green wire on the tach to the white wire on the - side of the coil. Red to ignition on power. White to parking lights. Black to ground.
     
  11. Janitorjim8

    Janitorjim8 1/2 ton status

    Joined:
    Feb 21, 2005
    Posts:
    215
    Likes Received:
    0
    Location:
    Illinois
    jebsr how do i tell which side is the negative side of the coil
     
  12. Janitorjim8

    Janitorjim8 1/2 ton status

    Joined:
    Feb 21, 2005
    Posts:
    215
    Likes Received:
    0
    Location:
    Illinois
    jebsr how do i tell which side is negative side of the coil?
     
  13. JEBSR

    JEBSR 1/2 ton status

    Joined:
    Dec 23, 2004
    Posts:
    1,541
    Likes Received:
    0
    Location:
    Clarksville, TN
    On the external coil it is not marked, but it is the white wire. I can get a pic of mine if it would help. Sorry it took so long, been out of town for turkeyday.
     

Share This Page