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  1. #1
    Established Member Two Rings
    Join Date
    Jul 23 2016
    AZ Member #
    377020
    My Garage
    2006 Lincoln Navigator
    Location
    Tacoma, WA

    Built internals on B8 4.2L V8 + boost?

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    I havn't seen anyone pull significant gains from this motor at all. 600hp seems impossible. Everything is super expensive just to keep running stock. I'm thinking the money just isn't worth it. But then I started to follow this guy in New Jersey swap his 4.2L for 4.0TT. I thought that project will cost more than building 4.2L. If I were to build the engine ( forged rods, pistons & cam) and possibly bore/stroke/port and sleeve. I don't have the money to do this, but if I did. JHM supercharger with near max output. I know we aren't talking about a 2JZ, but what are thoughts. Or could I just make another attempt at twin turbo. Tavarish on you tube fabricates turbo kit on Lambo, gives me so much hope. Spend the crazy money on engine management system and locate a tuner. The b8.5 3.0L V6 is built for boost. How much different is the actual engine from from the 4.2l? I would assume it's just internally forged and reinforced with 2 cylinders chopped off. A simple tune can gain nearly 100hp without changing anything mechanically. I'm done rambling. Let me know what you guys think.

  2. #2
    Veteran Member Four Rings tar's Avatar
    Join Date
    Jul 07 2009
    AZ Member #
    44682
    My Garage
    B8 S4, Orange B5 Avant
    Location
    Socal/IE

    Rambling.
    2011 S4 6mt Black/ Magma/ Carbon
    HRE ff01 | Rotiform ind-t | AWE Touring | P3 | Roc Euro | PLM | Eurocode Sways | Apr Stage 2 | H&R Sport | Q5 ECS Wave F/R | CR15 | AK | Eurocode Inserts | 034 subframe Inserts | Ecs Carbon Diffuser | JHM CP | ECS Short Shifter |

  3. #3
    Established Member Two Rings
    Join Date
    Jul 23 2016
    AZ Member #
    377020
    My Garage
    2006 Lincoln Navigator
    Location
    Tacoma, WA

    Anyone else? Preferably not reiterating.



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