2019 Miata Gets Engine Tweaks For More HP - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #1 of 5 (permalink) Old 08-13-2018, 02:39 PM Thread Starter
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2019 Miata Gets Engine Tweaks For More HP

For 2019, the Mazda Miata has received some engine upgrades to its 2.0L Sky-Activ motor. The throttle body, intake/exhaust valves and ports are all enlarged. The pistons and connecting rods were lightened, the fuel pressure was increased and the crankshaft was stiffened. All these changes resulted in a 26HP increase and a modest 3lb ft of increased torque. It also heightened the redline.



Though C/D didn't notice any major performance gains, it did positively increased the overall driving experience. The engine was reported to have a livelier, more free response. Fuel economy, interestingly enough, also increased slightly. Some modifications were also made to the 6SPD manual for slightly better actions.



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post #2 of 5 (permalink) Old 08-13-2018, 02:51 PM
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Originally Posted by michael95350 View Post
For 2019, the Mazda Miata has received some engine upgrades to its 2.0L Sky-Activ motor. The throttle body, intake/exhaust valves and ports are all enlarged. The pistons and connecting rods were lightened, the fuel pressure was increased and the crankshaft was stiffened. All these changes resulted in a 26HP increase and a modest 3lb ft of increased torque. It also heightened the redline.



Though C/D didn't notice any major performance gains, it did positively increased the overall driving experience. The engine was reported to have a livelier, more free response. Fuel economy, interestingly enough, also increased slightly. Some modifications were also made to the 6SPD manual for slightly better actions.



Get all the details here.
Those modifications are mainly for raising the redline and thus increasing HP, plus there really isn't much more torque you can get from a 2L making 181HP anyways. The redline is now at 7500RPM, which I think is perfect for this car. It would be fantastic if Mazda offered the NA 2.5L as the upgraded engine option for this car.

Have you seen Miata's, even older ones race on the nurburgring? They can keep up with very fast cars around corners and the braking zones. Very capable and impressive little cars. I just wish the suspension wasn't so soft and floppy, and that I actually fit in one
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post #3 of 5 (permalink) Old 08-13-2018, 08:11 PM
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Quote:
Originally Posted by michael95350 View Post
For 2019, the Mazda Miata has received some engine upgrades to its 2.0L Sky-Activ motor. The throttle body, intake/exhaust valves and ports are all enlarged. The pistons and connecting rods were lightened, the fuel pressure was increased and the crankshaft was stiffened. All these changes resulted in a 26HP increase and a modest 3lb ft of increased torque. It also heightened the redline.



Though C/D didn't notice any major performance gains, it did positively increased the overall driving experience. The engine was reported to have a livelier, more free response. Fuel economy, interestingly enough, also increased slightly. Some modifications were also made to the 6SPD manual for slightly better actions.



Get all the details here.
That sounds pretty awesome. I've never liked the looks of the Miata until this gen and some performance tweaks sound perfect. It's definitely the small sports car to beat.

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post #4 of 5 (permalink) Old 08-13-2018, 10:15 PM
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I would be VERY tempted to buy a "last year" leftover and then add to it an aftermarket turbo kit (they're available; ~$5k ish); you'd wind up with a car with roughly the same pricetag as the current model year (with the new engine tweaks) but it would utterly DESTROY the new one (and all the old ones) you ran up against....
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post #5 of 5 (permalink) Old 08-13-2018, 10:32 PM
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I would be VERY tempted to buy a "last year" leftover and then add to it an aftermarket turbo kit (they're available; ~$5k ish); you'd wind up with a car with roughly the same pricetag as the current model year (with the new engine tweaks) but it would utterly DESTROY the new one (and all the old ones) you ran up against....
It's already a rather quick car even in NA form, especially for having only 2L. I think Mazda's high compression, skyactiv motor would respond really well to a turbo due to it's linear powerband. You'd definitely want to invest in the factory LSD, some sway bars, camber plates coilovers maybe some chassis reinforcement bits, etc. As long as you find the right tuner, that would be a very worthwhile, fun, long-lasting build.
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