Turbo upgrade?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by AModelCat, Oct 20, 2019.

  1. Collie

    Collie Guest

    171702 non wastegated only works on 14-15l
    Anything smaller of a motor, it lags like crazy.
  2. Oxbow

    Oxbow Road Train Member

    Nov 24, 2015
    I have a Switchblade on a B model, and a 177148 on another.

    Mileage is pretty much the same, slightly better with the BW.

    Quick spool and higher boost at low rpms considerably better with the BW.

    Full load power and egt a bit better with Switchblade, and the Switchblade is better than the stock was.

    My instinct is that the 177148 would be preferable for A Model's engine, as it performs very well with less fuel. Not having ATAAC is something to consider though, as increased intake temperature may diminish the benefit of added boost.

    The 177148 is less than half the price of the Switchblade and we have had no issues with it.
  3. spsauerland

    spsauerland Road Train Member

    May 31, 2010
    West Harrison, In
    One thing may have to do with aftermarket or E model one is get different crossover pipe or adapter from turbo to JWAC. Area Diesel sells an adapter Adaptor | Area Diesel Service
    pushbroom, swaan and Oxbow Thank this.
  4. swaan

    swaan Road Train Member

    Jul 12, 2009
    BC canada
    Not so much an adapter as it is a bushing. The crossover pipe has smaller bell going into turbo compressor housing. This adapter brings the size down to same as the tube.
    Deffinatlly worth while upgrade with those smokey A model 3406 cats.
    spsauerland and Oxbow Thank this.
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