Mazda CX-3 Forum banner

1 - 11 of 11 Posts

·
Registered
Joined
·
24 Posts
Discussion Starter #1
can someone explain why the the cx-3 has a lower hp rating of 146 hp even if it shares the same 2.0L engine with mazda 3 which have 155 hp? from a car review that i watched, the original manifold for the 2.0 engine can't fit the body of the cx-3, forcing mazda to fit it with a smaller version.

i am asking this because i will base my future tuning upgrades from this fact. i would like to at least bump the original output of the 2.0L to 155 hp. i also can't find a concrete literature to confirm my research.
 

·
Registered
Joined
·
256 Posts
can someone explain why the the cx-3 has a lower hp rating of 146 hp even if it shares the same 2.0L engine with mazda 3 which have 155 hp? from a car review that i watched, the original manifold for the 2.0 engine can't fit the body of the cx-3, forcing mazda to fit it with a smaller version.

i am asking this because i will base my future tuning upgrades from this fact. i would like to at least bump the original output of the 2.0L to 155 hp. i also can't find a concrete literature to confirm my research.
I'm not sure why, but the main difference from the CX-3 engine and the 3 engine, is the low end torque.
In the 3 it has max. torque at 4000 rpm, but in the CX-3 it's at 2800 rpm.
So more low end torque but slightly lower high end power.

What is technical different between the two engines, I have no idea.
I'm sure anchorman can help here :)
 

·
Registered
Joined
·
212 Posts
can someone explain why the the cx-3 has a lower hp rating of 146 hp even if it shares the same 2.0L engine with mazda 3 which have 155 hp? from a car review that i watched, the original manifold for the 2.0 engine can't fit the body of the cx-3, forcing mazda to fit it with a smaller version.

i am asking this because i will base my future tuning upgrades from this fact. i would like to at least bump the original output of the 2.0L to 155 hp. i also can't find a concrete literature to confirm my research.
I remember reading somewhere that they couldn't fit the same exhaust manifold to cx-3 engine bay.

2015 MX-5 has 160 hp but the engine is mounted lengthwise (cx-3 crosswise).
 

·
Super Moderator
Joined
·
2,078 Posts
The MX-5 is RWD so it has a conventional layout.

As stated above, they had trouble packaging the 2.0G engine in the CX-3 so they had to re-design the inlet manifold. Engines are rarely rated anywhere near their maximum output to improve longevity, durability, emissions, and economy. I wouldn’t be at all surprised if they could get 200bhp or more but they tend to go for the sweet spot that gives the best balance of its attributes and that will be way lower than maximum.

The 3 is heavier then the CX-3 and they will have considered that in choosing the power and transmission ratios. Don’t forget that emissions are king in these global warming days.

Ive attached two pdf’s. One is the intake manifold of the CX-3 and the other is the 3 which is a much beefier affair. Does it make the difference between the power outputs? Personally, I doubt it.
 

Attachments

·
Registered
Joined
·
24 Posts
Discussion Starter #5
I'm not sure why, but the main difference from the CX-3 engine and the 3 engine, is the low end torque.
In the 3 it has max. torque at 4000 rpm, but in the CX-3 it's at 2800 rpm.
So more low end torque but slightly lower high end power.

What is technical different between the two engines, I have no idea.
I'm sure anchorman can help here :)
wow that sure is a big difference in torque range. this made me appreciate the cx-3 more. thanks!
 

·
Registered
Joined
·
272 Posts
I wonder if its a noticeable difference for regular driving? I have a RX8 manual before getting the CX3 and given its a high-revving rotary engine, the CX3 sure feels more peppy in city driving.
 

·
Registered
Joined
·
193 Posts
It is great having Anchorman on this forum! Clear, concise information backed with technical data. Well done.
 

·
Super Moderator
Joined
·
2,078 Posts
It is great having Anchorman on this forum! Clear, concise information backed with technical data. Well done.
That's very nice and appreciated.

Thank you.
 
  • Like
Reactions: mikflores

·
Super Moderator
Joined
·
2,078 Posts
As a matter of interest, I was flicking through the CX-5 brochure and noticed that the 2.0G Skyactive is rated at 165bhp.
 
1 - 11 of 11 Posts
Top