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2019 Miata ND engine update - 181hp, 7500rpm redline.. your thoughts as an S2k owner?
https://www.roadandtrack.com/new-car...-details-news/
2019 Miata ND gets a pretty big engine update - pretty much every engine internal (that matters) was modified - lighter pistons and rods, reformed crankshaft, modified valve opening angle (I assume ported heads), valve lift (higher lift cams), stiffer valve-springs, bigger throttle body (intake manifold too? idk.. but most likely), bigger exhaust manifold, higher flow exhaust, improved injectors, improved throttle pedal, more head-flow all-around, etc. 181hp peak at 7000rpm (previous peak was 6000rpm), redline at 7500rpm (previous was 6800rpm redline). Torque only +3 more than before; but 600rpm earlier now. Sounds like a lot of mods. So I assume they left a lot of headroom for more high-rpm reliability and maybe the base-tune is conservative and redline was set lower at 7500 for reliability. To me, as an S2k owner and a long-time lover of high-revving Honda engines, this is super exciting and good news. You? |
Yep, I'm going to test drive one. I'm getting to the end of my days owning a manual due to back problems, so an automatic ND2 is pretty interesting in the revised form.
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I've been gone form the Miata community for over a decade but if the car is still light, this sounds good. I recall reading the ND, as introduced, was significantly lighter than the outgoing NC.
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Originally Posted by tiger1964
(Post 24500155)
I've been gone form the Miata community for over a decade but if the car is still light, this sounds good. I recall reading the ND, as introduced, was significantly lighter than the outgoing NC.
The ND was already peppy and good fun, this ND2 should be a riot. I do wonder if it will show on paper and to the potential customer. When I sold Mazda’s, I actually had people who were considering the Boxster and Jaguar F-Type stop in. I thought it was a silly comparison as the prices were so distant along with the power, but they still wanted to have a try. In that regard, more power will help. |
@5:30 …you can see they also have changed the intake-manifold plenum size, design and airflow. The runners are also shortened. The porting and angles on the head looks changed as well (pretty much a completely new head design). Seems like very great lengths to improve the same car within the same (ND) generation! …this great effort really reminds me of when they were improving the S2k every other year… from MY00/01 to MY02/03 to MY04/05, etc. I think that’s so awesome! Miata is really doing it right! And also a good influence to other car manufacturers - make future generations LIGHTER! …and also now, make future generations more REV HAPPY! Bravo Mazda Miata! :D I wish Honda would take notes from this. |
Interesting. I haven't ever paid attention to Miatas but these are pretty nice looking. Much more masculine looking.
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It's really tempting me as a someone who is looking for a new toy. Before, it was a no brainer to go with a used AP2 Honda S2000, but now with this updated engine... oooooo
(used) Honda S2000 AP2: PROS: - It looks better to me with cleaner lines - No nonsense electronic nanny (pre-2006 models) - F22C, still a more potent engine and proven reliability - Suspension setup is pretty much spot on from factory - Mid-engine (more so than the ND Miata) - There's passion oozing through this car from the engineers and developers. CONS: - Same cons as buying any other older used car - No warranty - Difficult to finance, if not expensive - Low mileage will cost almost as much as a brand new ND Miata 2019+ ND Miata PROS: - MUCH lighter - Apparently, ridiculously good fuel efficient for what it is - New car amenities, modern creature comforts - Ease of financing, wouldn't be surprised if you can get 0% financing in the near future. CONS: - Updated motor is still no F22C - The designers forgot about the rear of the car - Factory suspension setup is not my cup of tea - It's still not as special as a Honda S2000 |
I also wonder if this means if we will see a bunch of nice NA1s come in on trade. At the dealer I worked for we did not see a ton of nice NA’s-NC’s traded on the ND. |
Power:weight ratios are very close now:
ND: Softtop: 2332lb/181hp = 12.9lb/hp RF: 2445/181 = 13.5 S2k: AP1: 2756/237 = 11.6 AP2: 2864/237 = 12.1 Torque:weight ratio: Obviously, with the same torque #s and lower weight (at a lower rpm too), the ND will feel much more peppy and torquey. Also, keep in mind, and as we all know, it is super hard to modify an S2k engine to make more power in NA form (because it is already highly engineered and tuned to give max output from factory... Unlike say a K engine). Now, what if an ND2 engine has much more potential over stock form (like a K engine)? Hmmm... it just may have potential like a highly-tunable K engine. |
Originally Posted by Jah2000
(Post 24500728)
Power:weight ratios are very close now:
ND: Softtop: 2332lb/181hp = 12.9lb/hp RF: 2445/181 = 13.5 S2k: AP1: 2756/237 = 11.6 AP2: 2864/237 = 12.1 Torque:weight ratio: Obviously, with the same torque #s and lower weight (at a lower rpm too), the ND will feel much more peppy and torquey. Also, keep in mind, and as we all know, it is super hard to modify an S2k engine to make more power in NA form (because it is already highly engineered and tuned to give max output from factory... Unlike say a K engine). Now, what if an ND2 engine has much more potential over stock form (like a K engine)? Hmmm... it just may have potential like a highly-tunable K engine. New Miata engine? We don't know just how bulletproof it is yet. |
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