New mazda mx5 power figure

ralt · Postby **ralt** » Wed Feb 18, 2015 11:24 pm

Hi.
This may be old news. Just read the new mx5 will have 116kw engine same as the mazda 3.

davekmoore · Postby **davekmoore** » Wed Feb 18, 2015 11:41 pm

The 2.0L may have that, and it would be 2kW more than in M3 and CX5. It'll depend on how confident Mazda are with going even higher compression ratio than the 13:1 of the existing Skyactiv motor here (14:1 in other markets). The 1.5L is naturally less powerful, but less than the 25% less than the maths would suggest. 1.5L may be the sweeter motor.

JBT · Postby **JBT** » Thu Feb 19, 2015 9:10 am

ralt wrote:Hi.
This may be old news. Just read the new mx5 will have 116kw engine same as the mazda 3.

Haha, the Kia Sportage 2 litre puts out more than that. :roll:

Lokiel · Postby **Lokiel** » Thu Feb 19, 2015 11:31 am

davekmoore wrote:The 2.0L may have that, and it would be 2kW more than in M3 and CX5. It'll depend on how confident Mazda are with going even higher compression ratio than the 13:1 of the existing Skyactiv motor here (14:1 in other markets). The 1.5L is naturally less powerful, but less than the 25% less than the maths would suggest. 1.5L may be the sweeter motor.

From what I can gather, Mazda detunes Australian cars based on their belief that Australians prefer to run their cars on lower-grade petrol because it's cheaper.

I can understand this philosophy for normal/boring DD cars but the MX5 is a sports car and I doubt that any owner would mind paying for premium fuel knowing that a non-detuned car will have a few extra killer-wasps.

The Aussie MX5 Skyactive motor should use the "normal" 14:1 compression ratio!

rjastra2 · Postby **rjastra2** » Thu Feb 19, 2015 11:34 am

davekmoore wrote:The 2.0L may have that, and it would be 2kW more than in M3 and CX5. It'll depend on how confident Mazda are with going even higher compression ratio than the 13:1 of the existing Skyactiv motor here (14:1 in other markets). The 1.5L is naturally less powerful, but less than the 25% less than the maths would suggest. 1.5L may be the sweeter motor.

The 1.5L engine has been majorly tweaked over the version in the Mazda 2. One tweak is a higher rev limit (7000rpm).
It makes sense to invest money in tuning the 1.5L as it can then be used in a sporty Mazda 2 model. It makes no sense to invest that time and effort in the 2L - where else would it be used? They have the 2.5L for "sporty" Mazda 3 models.

The Aussie MX5 Skyactive motor should use the "normal" 14:1 compression ratio!

BTW... the higher the comp ratio the harder it is to make the thing rev using the Skyactiv tech.
It's the US market that dictates the comp ratio of the 2L engine.

rascal · Postby **rascal** » Thu Feb 19, 2015 1:11 pm

rjastra2 wrote:They have the 2.5L for "sporty" Mazda ..... models.

Hence why they should have used this for the ND as well.. I thought the MX5 was a sports car? :roll:

Lokiel · Postby **Lokiel** » Thu Feb 19, 2015 1:43 pm

Unfortunately now it seems that the next Mazda "sports car" will be the Mazda 3 MPS AWD and that will get all the "performance lovin'" from Mazda

rjastra2 · Postby **rjastra2** » Thu Feb 19, 2015 1:44 pm

rascal wrote:
rjastra2 wrote:They have the 2.5L for "sporty" Mazda ..... models.

Hence why they should have used this for the ND as well.. I thought the MX5 was a sports car?

Because it's not a revvy motor. Its a mid range torque motor designed for family cars and suvs.

hks_kansei · Postby **hks_kansei** » Thu Feb 19, 2015 1:52 pm

Lokiel wrote:Unfortunately now it seems that the next Mazda "sports car" will be the Mazda 3 MPS AWD and that will get all the "performance lovin'" from Mazda

That's nothing new.

RX8 came out, supposedly the hero car, then they made the 6MPS with more power that it.
Then the 3MPS which had the same power as the 6MPS, but less weight.

The RX8 also had less power than other cars in it's class too, I recall the magazine reviews of the time were pretty often saying it was a good car, but a bit slow compared to the rest, and about even in other aspects.

I fear the ND may end up the same.

Nevyn72 · Postby **Nevyn72** » Thu Feb 19, 2015 2:18 pm

People need to take a deep breath on this one, there's a lot of things we don't know yet about the 2.0 version of this engine....

What we don't know;
- What the final specs will be (or even if they've been finalised yet), the 155hp/148tq numbers are the official 'development' targets.
- What version of the SAG 2.0 it will be, they come with 12:1, 13:1 & 14:1 compression ratios.
- What fuel it is designed to run on, 91/95/98 RON?
- Whether the Euro/Aus markets will get the same 2.0 engine as the US market.
- What the redline will be.
- Will it get a lighter flywheel than the garden variety SAG?

What we do know:
- The ND version will have a unique intake, exhaust and possibly cylinder head and/or cams.
- The ND version will have a unique tune (confirmed by Mazda) for the application (ie. can be tuned for more power & less torque in the light weight sports car application than the DD car design).
- The ND will be a lighter car than the equivalently equipped NC, by how much we don't know exactly yet, but it will likely be somewhere between 50-100kg.

People also need to stop being so hung up on a single 'peak' number, 'area under the curve' is probably just as, if not more, important!
Comparisons have been made over on the big forum between the garden variety MZR 2.0 & SAG 2.0 and the SAG has significantly more power everywhere up to 6000 RPM, how much time (other than on track days / racing) do you really spend over 6000 RPM?

I think the best option for all concerned is to be a little patient and see what is officially released and more importantly how it actually drives in the real world rather than on paper! :wink:

Dan · Postby **Dan** » Thu Feb 19, 2015 3:21 pm

I’m not concerned about power, the 2L ND should around the same or more power than the current NC.

I’m concerned about how much they going to charge for the ‘premium’ engine option which should of been on the car in the first place.

bruce · Postby **bruce** » Thu Feb 19, 2015 4:38 pm

Not fussed as I don't have the desire to buy one. Maybe in 10 or 20 years when they're cheaper.

hks_kansei · Postby **hks_kansei** » Thu Feb 19, 2015 4:40 pm

Nevyn72 wrote:People also need to stop being so hung up on a single 'peak' number, 'area under the curve' is probably just as, if not more, important!
Comparisons have been made over on the big forum between the garden variety MZR 2.0 & SAG 2.0 and the SAG has significantly more power everywhere up to 6000 RPM, how much time (other than on track days / racing) do you really spend over 6000 RPM?

True,

However the problem is that for success the car needs to appeal to more than just car geeks who understand that sort of stuff, not to mention manufacturers need to explain it.

I have never, ever, seen a manufacturer explain power in a way other than just telling people the peak number, magazines also focus a lot on peaks.
A lot of people will simply see the peak output and think “oh, that’s less than the Toyota” or whatever else they are looking at buying.

As far as the car actually being good, you are 100% correct.
But unfortunately a car won’t succeed just by being good, the public also needs to think it’s good.

Mr Morlock · Postby **Mr Morlock** » Thu Feb 19, 2015 5:32 pm

to add to HKS comments the measurements of power and torque are clearly measured for this country in KW and NM - at a certain rpm max Personally I am not the slightest bit interested in hearing people talking about HP when it no longer part of our system and I don't care what they do in the US market. Engines that have to be revved to go are not really main stream and thats why turbos and diesels are popular. Sure we can wait for the announcement but it need to be a competitive engine