26 responses

  1. Stefanos
    January 2, 2018

    I thought there are internals needed such as forged pistons and rods to get above 320 hp – not even whp…


    • Kim Russell
      January 3, 2018

      The stock block can usually handle up to 400 whp before it gets into the danger zone, as long as you keep the torque down low.
      Rods and pistons will be required to go over 400 torque


  2. David
    January 4, 2018

    How would you even be getting close to 400 on stock fuel system without e85? I am on 93 with CS Turbo and all supporting mods besides intake mani and exhaust mani. I am at 325 / 325 and starting to run out of fuel. Even if I was to ragged edge the timing I would not be getting close to 400 whp. I am running veratune and curious what magic you are performing to see these numbers. I am not saying it can’t be done but a reliable DD tune with that kind of numbers from stock fuel seems unlikely.


    • Kim Russell
      January 4, 2018

      This is a bit big of a question to answer in a quick reply here. Please give us a call directly and we can definitely talk you through it!
      360 260 2675


    • Eliezer Perez
      March 8, 2018

      Im stock turbo, full turbo back,tmic,intake and tip and im making nearly 325 hp and tons of torque tuned by the mad scientist Justin Freek. If i were you, i would get a good tuner in order to get the best out of your mods


    • Kyle
      March 27, 2019

      Well E85 is roughly equivalent to 108 octane fuel. You do lose some fueling as more fuel is required to achieve proper combustion.

      Still, that’s a significant upgrade to the 93 you are using.


  3. Jeff
    January 17, 2018

    I have a 2013 MS3. I know that number of 400hp is achievable. In fall of 2017, I had the distinct pleasure of doing a 30km/hr start race vs a corvette C5. I couldn’t beat him, but he couldn’t beat me either. We stayed side by side till about 220km/hr. We both called it off there as there was traffic a lil ways down the hwy. I know what a c5 makes for power, and I figure I must be putting out at least 400whp. But the real kicker is the torque. Well into the 600s. I have some mods, but writing my own engine maps gave me easily 80hp and 120lb/ft of torque alone! I was running on 94 10% ethanol, pump gas. I know I’m just on the verge of over advancing the ignition too much, but it felt real good to hang with a vette!!


  4. claude
    January 18, 2018

    im am running exactly the same mods except the intake manifold, and im runnin 340whp at 18 psi. we did 1 run at 20 psi we did 350whp but it was a hot day last summer so we uploaded the 18psi tune. i dont have ebcs or map sensor either, im still on those oem and it awesome so far.ALL HAIL CORKSPORTS.


  5. Mark
    March 6, 2018

    Can be done. With meth and 50% e85 it can go more, my best is at 435 WHP. No KR’s , its all in the tune at 24psi CS turbo with all the bolt ons. Timing at 18 deg advance. Dont know how long it will last but. I have all internals ready for a rebuild with 4032 pistons and rods. This is why I’m kinda experimenting before I rebuild.


  6. eric rapp
    March 8, 2018

    I have all the prerequisites listed and a couple more in regard to the CS suggestions.
    Actually have the CS turbo in place . My intake manifold has bung for meth. Also have a race header in place with my 2008 versions of 3″ TBE, both HF cat and race pipe from the fine folks at Corksport.

    Upgrading injector seals might be added to the list ?

    Good to know Mark ! I expect to shoot for for 400 with what i have in place currently this spring summer. The E tuner i am using has proven it is doable, repeatable and can be done safely. Nice write up !!


  7. Zack
    March 10, 2018

    As long as you have enough fuel, cylinder cooling, and a turbo that can support it, many folks have hit 500whp on stock block, no problem. The issues is torque management, especially down low. Keeping it below 400 (or even 380, for some more safety) is key.


  8. Jeff
    March 11, 2018

    You’re right Zack, 500hp is achievable. Keeping the torque down tho??? Why would you do that? I press my engine to the max but use 2 engine oil friction modifiers. Another in the tranny. I quite easily produce in the tang of 450-750lb/ft of torque. It’s been a lil hard on the rod bearings, but that’s all that’s happened on my 5yr old 155,000km motor. Boost is 24psi at peak in 3rd and fourth gear. By maf readings and conversions, it is approximately 400hp. That’s with a mild tune. I’ve got easily 2000, yup that’s right 2000, hours of tuning and researching of engine map settings. I run 94 octane plus a octane booster (Boostane) to bring it up to 98-100 octane. The ignition advance is very heavy and I rely hard on a knock sensor and my ears for spark control. This is all done on the stock turbo, intake/exhaust manifolds and a tmic (about 4” thick mind you) with a home made ram/cold air intake. If you’re wanting more street grip…255/35r18 tires match exactly on the speedometer as stock ones do (Gen 2). Took 0-60mph time from 6.2 to 5.4 seconds…or better, as I didn’t get a chance to play much last summer.


  9. Mark
    March 22, 2018

    I think what Zac meant was keeping the torque low at the low end of the RPM band.


  10. Zack
    September 28, 2018

    Exactly, lower torque lower in the powerband due to how engine physics works and creates stresses on the rods. 380wtq @ 2.5k rpms is MUCH harder on the rods than 380wtq at 4.5k, for instance.


  11. tomppa
    November 10, 2018

    vässad mazda 6 mps 450hp på hjulen


  12. Juan
    November 11, 2018

    intake, intercooler, turbo back exhaust and a good 91 or e85 would get me to a good 340whp? and how much would this cost me? I currently have a 2010 mazdaspeed 3 and am shooting for 300+ whp without changing anything big suck internals or turbo for now. looking for just bolt ons and a good tune, any recommendations???


  13. Victor
    January 26, 2019

    I have a 2012 speed3 and u feel like my car not makeing any boose pressure it feels like my car doses have a turbo at all what should check for ?? What should I do need help


    • Derrick Ambrose
      January 29, 2019

      Call us at 360-260-2675 and see if we can help you out.


  14. Adam H
    March 26, 2019

    Is there anything more you can do to a 2.0L 2011 Mazda with an automatic transmission besides intake and exhaust? I’m not hoping to get anything like these kind of gains, as I know you can’t just slap a turbo onto an automatic, but I’d like just a noticeable increase in vroom.


    • CorkSport
      March 26, 2019

      Unfortunately we don’t have much else for engine performance. Having an intake, exhaust, and tune will help quite a bit though. You may also be to source a header, but we do not sell one.


  15. Chris
    November 8, 2019

    We made with the Stock Turbo and a great Ignition Table in the Map on 1.3bar peak and 1.25bar holding pressure 355 Engine HP. (EU 98Octane)

    Then with E85 with Stock Turbo 404 Engine HP.

    Intake, Top Mount Intercooler, High Pressure Pump Internals Upgrade, Downpipe and Selfmade Exhaust.

    The Torque was limited on 500Nm because of stock internals.

    There is NO Number of torque that you can say so much will my mazda can handle.

    Some Rods break at 480Nm (Engine) some hold over 520Nm for years.

    The Rods are really small so this is the dangerous Part.

    The next problem is that the Stock Injectors are at a Limit on some Point.

    Then we need to go for a pre-injection before.

    So we always tune until about 480Nm of Engine Torque. Just to be safe.

    And we never make that Peak Tuning. We always make a flat courve, so the engine have power from early until the rev limiter.

    All the Boost Tuners have after the Boost Peak no more Power.

    Greetings from North Europe


  16. Cody London
    April 17, 2020

    I just bought my ms6. Gave it some basic tlc + suspension. I’m beyond excited to actually work on a car that has potential. This is where I’m at crossroads. I think doing the 400hp mods listed above seem doable, however I was researching a stage 2 700hp long block.

    Either way you’re going to be spending, ball park 3,500-4,000 on these mods. May as well just replace the motor at this point correct? I’m not trying to run 700hp I’d be content with 500. I’m a novice builder. My question is can the stock and support this? Intake, plugs, exhaust, fmic, suspension, rear end, shafts, that should about donor, right?


    • Cody London
      April 17, 2020

      *Stock awd


  17. Ryan
    May 18, 2020

    hey everyone, ive got the 2.5L mazda 3 gen 2 with only a xforce catback. But im looking to push the motor a little with some mods but idk what to do that isnt too extreme.


  18. Victor
    July 21, 2020

    So u don’t need a downpipe for 400hp


  19. Robert
    August 16, 2020

    “So u don’t need a downpipe for 400hp’

    Scroll up. Note that ‘turbo back’ exhaust is mentioned. This is a downpipe and a catback together.


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