12 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…

    Reply

    • 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

      Reply

  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.

    Reply

    • 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

      Reply

    • 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

      Reply

  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!!

    Reply

  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.

    Reply

  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.

    Reply

  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 !!

    Reply

  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.

    Reply

  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.

    Reply

  9. Mark
    March 22, 2018

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

    Reply

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