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  1. How reliable is the MZR 2.0?

    2010-2013 Mazda 3 Engine and Performance
    I currently own a 2013 non-skyactiv Mazda 3 hatch with the MZR 2.0. I know it is a little rev-happier than other engines, however I am curious about how much it can handle. I have been redlining it quite often recently, and am just wondering if it can truly take that kind of driving (like a...
  2. New Mazda 3 HB 1.6L MZR

    2014-2018 Mazda 3 Skyactiv Discussion
    Hello, Is anyone familiar with this Mazda 3 Hatchback engine? Interested in the new 2017 Mazda 3 HB, but the only engine available in my country is the 1.6L MZR 4-speed AT and not the Skyactiv one. Is it really worth looking into this? :| Can anyone with this type of engine share their...
  3. will 225/45/r18 tyres be too heavy for 14 Maz3 with 1600cc MZR engine?

    2014-2018 Mazda 3 Skyactiv Wheels and Tires
    Hi I have a 2014 maZDA 3 but here "unfortunately" it comes with the 1600cc MZR engine. I have OEM 16in alloys with 205/60R16 Im planning to go for 18in * 8 alloys, ET 45. im unsure to go for 215/45r18 or 225/45R18? I wouldnt want the wheels to be too heavy for the 1600cc engine which has only...
  4. Corksport Camshafts for DISI MZR

    2010-13 Mazdaspeed 3 Engine and Performance
  5. correct oil filter number for MZR 2.0?

    2010-2013 Mazda 3 & Skyactiv Discussion
    Sorry, I searched and didn't find anything, What is the correct OEM and aftermarket (Purolator, Mobiil one, etc) aftermarket oil filter number for this car, 2012 Mazda 3 MZR 2.0 ? Prefer the Pure one number. Thanks
  6. Molnar Billet H-Beams for the MZR 2.5!

    2010-2013 Mazda 3 & Skyactiv Discussion
    Tom Molnar from Molnar technologies will be soon Offering Billet H-beam Connecting rods for the MZR 2.5L engine! There is a limited number of sets available! won't last. The Connecting rods should be available early 2014 (late jan -feb) The connecting rods will be available to work with stock...
  7. CorkSport Mazdaspeed MZR Bypass Valve Released!

    CorkSport Mazda Performance
    CORKSPORT Mazdaspeed MZR Bypass Valve It's Finally Released! The CorkSport Mazdaspeed MZR Bypass Valve. After a lot of testing, revision, and customer collaboration we have the final version of our Bypass Valve for sale. This is one of the coolest products that we have ever developed in my...
  8. FS: Corksport Power Series Intake for 2.5L MZR

    Mazda 3 Parts - Buy / Sell
    A lightly used Corksport Power Series Intake for the 2.5L MZR in the Mazda3 and 5. Used for approximately 3k miles. All original hardware included. Fixed my CEL by reseating the MAF sensor, which I had not tightened enough originally. Sounds great. Looking to put this money toward a roof rack...
  9. 6 speed auto or manual on 2.0 MZR engine

    2010-2013 Mazda 3 & Skyactiv Discussion
    I wonder what if the Mazda ever thought of putting a 6 speed auto or manual transmission instead of 5 speed in the non-Skyactiv 2.0 (2.0L MZR) engine, so what do you think about the fuel economy would be like? I would think probably 36-38 in automatic and 35-37 in the manual transmission. I...
  10. Turbosmart Bypass Valve Kit: 2.3L MZR DISI

    2010-2013 Mazda 3 Engine and Performance
    I order this BVP valve,to replace "El cheapo plastic valve:Racing 1 has good reviews : http://www.streetunit.com/Turbosmart_Bypass_p/ts-0997-1009.htm
  11. mzr 2.5 news and Got into an accident today !

    2010-2013 Mazda 3 Engine and Performance
    SO I just found out that the 2.5 MZR does infact have a forged crankshaft AND has Powder forged Connecting rods and lightened pistons! if anyone didn't know. powder forging rods are quite stout. I don't know if the mazda speed 3 has the same type of forging, but I read online that powder forged...
  12. Volumetric Efficiency of the 2.5 mzr

    2010-2013 Mazda 3 Engine and Performance
    Does anyone know what the volumetric effieciency of our 2.5 mzr's are? in a COMPLETELY STOCK environment? if you dont know what volumetric efficiency is dont bother posting! i'm guessing it is probably around 70-75%. if anyone knows let me know! also did everyone know that you can actually...
  13. 2012 MZR 2.3L Turbo.

    New Member Introduction & Forum News/Guide
    Hi I am viperishza. Vehicle: MazdaSpeed 3 2012 (Bought in November 2011) Color: Black Mica Mods: Sure SRI, Sure TIH, Cobb AP, Cobb Downpipe, AT internals, CP-e TMIC Mileages as of today (12-10-11): 6500 miles Future references: I promised myself not to do anything on this car. After I got it...