ecoboost

  1. dinnerplate

    DISI MZR v EcoBoost Engine Comparison

    I've seen it asked before on various Mazdaspeed related social communities, and I've answered to the best of my ability. I've decided to create a thread that contains (hopefully) exhaustive differences that the EcoBoost 4 cylinders found in the Focus ST and RS (2.0 and 2.3) has in contrast to...
  2. dinnerplate

    Mountune Crankshaft on Mazdaspeed3/6

    Not really sure where I should've put this, but I've seen some people across the internet lately ask about running the Mountune 2.3L EcoBoost keyed crankshaft in their Mazdaspeed, and conveniently, I've had the pleasure in dealing with this hell already. I'll just summarize this entire post...
    • dinnerplate
    • Thread
    • crank pulley crankshaft ecoboost ford focus ford focus rs ford focus st harmonic balancer mountune
    • Replies: 6
    • Forum: Mazdaspeed 3/6 Engine
  3. K

    a Mazda enthusiast has sinned

    Hey all, I'm new here but not new to Mazda forums :). I've been car-free for a few years, but today I picked up my first ever new car. All my life I've only owned Mazdas, so I feel like I have sinned. I bought a Fiesta ST :) Here are a couple photos but they're terrible. I basically just...
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