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Thread: 2019 Miata gets 181 hp

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    The Real Captain Slow Red_5's Avatar
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    Default 2019 Miata gets 181 hp

    The 2019 Miata will get a decent hp bump from a substantially reworked engine. Highlights include new lighter pistons, lighter connecting rods and a crankshaft balanced for higher RPMs. It gets a new larger air intake, throttle valve, intake valves and a larger smoother intake manifold. Exhaust side gets higher lift camshaft, lighter exhaust valves, redesigned exhaust ports, larger exhaust manifold and less restrictive exhaust silencer. The car will also get a dual mass flywheel. More info on the link below, not sure why the image won't embed.
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    Senior Member bellwilliam's Avatar
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    surprised to see zero mention of a stronger transmission....
    what's the point of a more powerful engine if the transmission can't even take existing engine's power.
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    Quote Originally Posted by bellwilliam View Post
    surprised to see zero mention of a stronger transmission....
    what's the point of a more powerful engine if the transmission can't even take existing engine's power.
    I thought they already reworked the transmission. Maybe not?
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    RaceTape Ninja Force McCocken's Avatar
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    Perhaps acknowledgement of a revised transmission would be admission the old one is problematic, bringing in a floor of warranty repairs/class action lawsuit?
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    Quote Originally Posted by Force McCocken View Post
    Perhaps acknowledgement of a revised transmission would be admission the old one is problematic, bringing in a floor of warranty repairs/class action lawsuit?
    With an increase in engine power, now would be a good time to mention a strengthened transmission. Mazda could always claim they changed it because of the added power.
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    Quote Originally Posted by Red_5 View Post
    I thought they already reworked the transmission. Maybe not?
    never trust manufacturers when they said they fixed something......Someone I trust on Mazda OEM stuff said already on 3rd or 4th iteration of the transmission, and still not working out.
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    That is a mighty fine power number for a car that weighs 2,300 lbs. Seems like it will be dropping a little weight from the nose and incorporate a higher redline. HP will increase, but torque should remain about the same. Is it torque that kills transmissions?
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    Quote Originally Posted by bellwilliam View Post
    never trust manufacturers when they said they fixed something......Someone I trust on Mazda OEM stuff said already on 3rd or 4th iteration of the transmission, and still not working out.
    That's a bummer to hear. Maybe they just need to go back to the NC transmission and rear end like the Fiat uses.
    Quote Originally Posted by SDSUsnowboards View Post
    That is a mighty fine power number for a car that weighs 2,300 lbs. Seems like it will be dropping a little weight from the nose and incorporate a higher redline. HP will increase, but torque should remain about the same. Is it torque that kills transmissions?
    This sounds like a fun car now hopefully with a sporty, revvy engine.
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    Quote Originally Posted by Red_5 View Post
    That's a bummer to hear. Maybe they just need to go back to the NC transmission and rear end like the Fiat uses.
    may be they did !!

    I wonder what about the 2019 Fiata will do now Mazda bumped up power.
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    Quote Originally Posted by bellwilliam View Post
    may be they did !!

    I wonder what about the 2019 Fiata will do now Mazda bumped up power.
    They'll turn up the boost!

    And with this hardtop!
    https://forum.miata.net/vb/attachmen...1&d=1514305034
    Last edited by Red_5; 04-19-2018 at 02:30 PM.
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    I'm still not impressed. It's a 2.0L running 13:1 compression making 181hp. When you compare that to Honda and Toyota engines it's not really impressive. I never understood why it only made 155hp with 2.0L in the first place.
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    Quote Originally Posted by Silversprint View Post
    I'm still not impressed. It's a 2.0L running 13:1 compression making 181hp. When you compare that to Honda and Toyota engines it's not really impressive. I never understood why it only made 155hp with 2.0L in the first place.
    Does Honda make an N/A engine anymore smaller than the 3.5 in the Pilot/MDX? That engine is only making 290. I think due to emissions and fuel efficiency standards the era of high revving affordable engines is over. Besides, what current Honda would you rather have in the same price range? Toyota?
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    Quote Originally Posted by Silversprint View Post
    I'm still not impressed. It's a 2.0L running 13:1 compression making 181hp. When you compare that to Honda and Toyota engines it's not really impressive. I never understood why it only made 155hp with 2.0L in the first place.
    The Mazda Skyactiv-g uses about 50% less fuel. BSFC (google that) is something like 20% lower. Thats massive. The 2ZZ, for all it's high revving glory, is a dinosaur compared to the Skyactiv-g. The ECU in the Skyactiv-g is an amazing bit of tech in itself.

    Remember, Mazda doesn't have hybrid tech yet. I might be wrong but I think the skyactiv-g is the most gasoline efficient production engine sold in North America, probably the world.
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    Yep. This new tech hopefully will buy Mazda another decade without being forced into a terrible deal on an electric.

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    Isn't there a TrackHQ bylaw that forbids Mazda criticism?? LOL. Hard to imagine a car company that has done more for the promotion of amateur racing than Mazda.... despite being one of the very smallest car manufacturers out there!

    I know many owners of the MX-5 Cup cars and all of the early guys got a brand new transmission free of charge from Mazda and, at least locally, there have been few reports of problems.

    On another topic, brave Mazda.... against all of the headwinds against diesel, just got the CX5 CARB approved yesterday. Giddy-up.

    OK, and you can call me biased. My daughter just started working for Mazda corporate this past Monday.
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    Quote Originally Posted by Red_5 View Post
    Does Honda make an N/A engine anymore smaller than the 3.5 in the Pilot/MDX? That engine is only making 290. I think due to emissions and fuel efficiency standards the era of high revving affordable engines is over. Besides, what current Honda would you rather have in the same price range? Toyota?
    Everyone else is moving to electrics or turbos. Smaller engine with same power as larger NA engines. That's why a Honda civic can make 205hp and get 42mpg out of a 1.5L engine.
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    Quote Originally Posted by Silversprint View Post
    Everyone else is moving to electrics or turbos. Smaller engine with same power as larger NA engines. That's why a Honda civic can make 205hp and get 42mpg out of a 1.5L engine.
    I'm aware which I why asked if Honda currently makes an N/A engine smaller than the 3.5 in the MDX. If you're into small turbo engines then you can buy the Fiat version. The turbos seem to underperform in real world fuel mileage where the Mazda Skyactiv have been consistently beating their ratings. Personally I think I'd prefer a 2.0 from the Mazda although the new 124 Abarth GT looks pretty cool too.

    You also avoided my question about which current similarly priced Honda or Toyota you'd prefer over the 181 hp Miata.
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    Quote Originally Posted by Red_5 View Post
    I'm aware which I why asked if Honda currently makes an N/A engine smaller than the 3.5 in the MDX. If you're into small turbo engines then you can buy the Fiat version. The turbos seem to underperform in real world fuel mileage where the Mazda Skyactiv have been consistently beating their ratings. Personally I think I'd prefer a 2.0 from the Mazda although the new 124 Abarth GT looks pretty cool too.

    You also avoided my question about which current similarly priced Honda or Toyota you'd prefer over the 181 hp Miata.
    Honestly I would buy a Ford Mustang, FRS, Camaro, before another Miata. I have owned new NA,NC miatas in the past. The Miata no longer fits my life. I only do occasional HPDE with street driven cars.
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    Quote Originally Posted by Silversprint View Post
    I'm still not impressed. It's a 2.0L running 13:1 compression making 181hp. When you compare that to Honda and Toyota engines it's not really impressive. I never understood why it only made 155hp with 2.0L in the first place.
    I never thought about it like that. If you take into account the Toyota/Subaru child, the FA20, the ND 2.0 is down a bit on HP. But where the Skyactiv-G shines is torque. That engine has lots of torque and the ND is properly geared to take advantage of the "add lightness" factor.

    Our ND is at the dealer now for touch screen delaminating and soft top. I was told 4th version of transmission and 5th version of the soft top. Transmission is not broken yet, so they won't switch it out.
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    I had the opportunity to drive a CX-5 skyactiv diesel a few years ago. It was not a production model of course but man that thing was cool. Bags of torque, stop/start.
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