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Thread: Need help with tune

  1. #1
    Carb and Points!
    Join Date
    Nov 2020
    Location
    Central Florida
    Posts
    1

    Need help with tune

    I am in need of help with tuning my SBC 350 with a TPI. I have a 7730 ECU and using an autoprom. Below are my engine specs and sample run. It runs super RICH. With it running in my shop I went through 4 gallons of fuel in about 30min of total run time.

    350 with 64cc double hump heads with 202/194 valves. The tpi has aftermarket runners and 22lb injectors. The cam specs are as follows:

    Camshaft Type:
    Hydraulic Flat Tappet
    RPM Range:
    1600-5800
    Intake Duration:
    268
    Exhaust Duration:
    280
    Intake Duration (.050" Lift):
    224
    Exhaust Duration (.050" Lift):
    230
    Intake Valve Lift w/ Rocker Arm Ratio:
    0.477"
    Exhaust Valve Lift w/ Rocker Arm Ratio:
    0.480"
    Lobe Separation:
    110 °
    Grind Number:
    CS XE268H-10
    MFG. Part #:
    12-242-2
    GTIN Code:
    036584023531
    I am very new at tuning an EFI car and any help is appreciated.
    Attached Files Attached Files

  2. #2
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    Posts
    6,310
    Link to gearhead-efi 1227730 information: http://www.gearhead-efi.com/Fuel-Inj...Information-8D

    The data log is showing two errors
    Code 51 - PROM Error
    Code 41 - Cylinder Select Error

    D.JPG

    Are using a V8 Memcal?

    s-l500.jpg

    Ebay Auction for V8 Memcal https://www.ebay.com/itm/90-92-L98-3...EAAOSwJYhfiEJg

    dave w

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