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.

power chip

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by detailer03, Aug 9, 2004.

  1. detailer03

    detailer03 1/2 ton status

    Joined:
    Sep 23, 2003
    Posts:
    108
    Likes Received:
    0
    Location:
    Arizona
    I want to put a chip in my 89 K5
    I have headers, and Gibson exhaust.
    Any suggestions?
    Also, since I changed my cat, last week, it smells like rotton eggs.
     
  2. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

    Joined:
    Aug 28, 2002
    Posts:
    9,095
    Likes Received:
    144
    Location:
    california
    I have heard bad things about the chips. They don't do much for the pre '96 trucks because all they basically do is advance the timing and require you to run premium fuel.
     
  3. BadDog

    BadDog SOL Staff Member Super Moderator Author

    Joined:
    Feb 24, 2001
    Posts:
    7,777
    Likes Received:
    11
    Location:
    Phoenix, AZ
    Agreed. The only reason to "chip it" would be to account for hipo heads, different cam, and so on. A chip will help VERY little on a reasonably stock motor. In fact, I'm running a stock chip on a TBI 350 with Dart(?) heads, cam and many other moderate mods. Mine would probably "wake up" a bit with a chip, but I'm not motivated enough to spend the money on it right now.
     
  4. detailer03

    detailer03 1/2 ton status

    Joined:
    Sep 23, 2003
    Posts:
    108
    Likes Received:
    0
    Location:
    Arizona
    How can I fatten up the mixture. It seems to be running a bit lean.
     
  5. dyeager535

    dyeager535 1 ton status Premium Member

    Joined:
    Dec 13, 2000
    Posts:
    26,978
    Likes Received:
    189
    Location:
    Roy WA
    To get it right, you hook the ECM up to a laptop with one of the many programs made for ECM "reading", and with that data, either have a company burn a chip for you, or get into PROM burning yourself.

    Many variables to the EFI systems, typically any "quick fix" isn't a fix at all.
     
  6. Thunder

    Thunder 3/4 ton status

    Joined:
    Jul 20, 2000
    Posts:
    8,946
    Likes Received:
    1
    Location:
    Northeast Nevada
    A chip wont do much.
    You can gain more power by bumping up the base timing 4 degrees and installing an adjustable fuel pressure regulator. upping the FP to around 14 psi.
     

Share This Page