Lucas Injection setup 3500 GTI | FerrariChat

Lucas Injection setup 3500 GTI

Discussion in 'Maserati' started by infuriarsi, Jul 25, 2017.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. infuriarsi

    infuriarsi Rookie

    Oct 9, 2007
    40
    Eugene, Oregon
    Full Name:
    Joseph Potter
    #1 infuriarsi, Jul 25, 2017
    Last edited by a moderator: Sep 7, 2017
    I built this 3500 GTI engine and I wanted acute control of the injection during break in specifically. So I installed a wide band O2 sensor in the header so I could read AFR while driving under load. Further, I wanted to be able to adjust the injection on the fly so I could get the AFR I wanted during breakin. Fabricated a housing replacement for the altitude compensation plunger on the Lucas fuel distributor and then used a remote brake bias adjuster to control the AFR from the cockpit. Works really well. Amazingly accurate injection.

    Joe Potter
    Image Unavailable, Please Login
    Image Unavailable, Please Login
     
  2. Portenos

    Portenos Formula 3

    Aug 20, 2004
    1,851
    Seattle
    Full Name:
    Carguytour
    #2 Portenos, Jul 27, 2017
    OK I'll bite, what does AFR stand for?
    What you have done is very interesting.
    Is it the case you are able to adjust the fuel air mixture on the fly?
    So you are able to lean or richen the mixture at will?
    FGM
     
  3. PSk

    PSk F1 World Champ

    Nov 20, 2002
    17,673
    Tauranga, NZ
    Full Name:
    Pete
    #3 PSk, Jul 28, 2017
    I assume AFR means Air Fuel Ratio.

    Clever stuff, but a small nit pick if I may; that first hose clip on the green hose needs to be upside down like the other one. Would IMO look a lot cleaner.

    BTW I assume this is a temporary thing while the engine is bedded in?
    Pete
     
  4. infuriarsi

    infuriarsi Rookie

    Oct 9, 2007
    40
    Eugene, Oregon
    Full Name:
    Joseph Potter
    #4 infuriarsi, Jul 29, 2017
    Yea all temporary until the engine fully sorted. Yes AFR is air fuel ratio.
     

Share This Page