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The perfect engine for today’s small sedans and crossovers?

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Old 11-28-22 | 02:36 PM
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Originally Posted by mmarshall
…….and not to mention the fact that an electric motor is arguably the smoothest powerplant of all… with plenty of torque at low RPMs
That is for a different thread and discussion
Old 11-28-22 | 02:46 PM
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Originally Posted by mmarshall
You are correct, sm1ke. The OP (me) was more concerned with refinement than raw power.
Right, and you wouldn't be the only one with refinement at the top of the list for their next luxury vehicle. It sucks that if you want a smooth, refined engine, you have to opt for a larger engine (and a larger vehicle) or ditch the ICE and go EV. Unfortunately for all of the reasons posted by others, its very unlikely that something like this would ever come to pass without a lot of investment.

@SW17LS , you literally said "take that engine (referring to the 1.8L V6 in the MX-3 that I provided the 0-60 time for) and put it in the CX-5 and I bet it does 10+ in the 0-60". Lol. Anyway, aside from that, I think many of us are in agreement that while it would be nice to have that refinement, it just doesn't make sense to throw resources into improving a small V6 when there are other options better suited for the job.
Old 11-28-22 | 02:55 PM
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And I was totally right. If the NA 4 cyl does 0-60 in the CX-5 in 8.6 or so, that engine in a CX-5 would be 10+ seconds to 60.

I think it’s a great thread, thanks for posting it @mmarshall
Old 11-28-22 | 02:57 PM
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Originally Posted by SW17LS
And I was totally right. If the NA 4 cyl does 0-60 in the CX-5 in 8.6 or so, that engine in a CX-5 would be 10+ seconds to 60.

I think it’s a great thread, thanks for posting it @mmarshall
I second that. Brings me back to my ICE roots!
Old 11-28-22 | 03:16 PM
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Originally Posted by tex2670
It's an interesting theoretical discussion, but there's a reason that the marketplace is where it is. While a small displacement V6 or I6 may be "better" for some aspect (say NVH), it's just not "better" overall for the vast majority of the driving public.
a bigger factor is likely cost / benefit. maybe the tiny 1.8 v6 was smooth (i don't know, never tried it), but it obviously wasn't very powerful and likely cost more to build vs. the widely used 4s.
Old 11-28-22 | 04:09 PM
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Originally Posted by mmarshall
I sampled one or two MX-3s with the 1.8L V6, and found it lacking in low-end torque, but otherwise bringing big-car engine smoothness and refinement to the small inexpensive entry-level class, which usually had somewhat raucous in-line threes and fours. Back then, it seemed like only Toyota and Honda could produce a truly refined in-line four…Mazda certainly didn’t, but compensated for it with the small V6. It was rated at 129 HP at 6000 RPM and 157 ft-lbs of torque at 5000 RPM….wimpy figures by today’s standards (and why the low-RPM response was poor), although the advances in power plant engineering in the last 30 years would probably give much better power figures in that same block today.
Seems like you and I are the only ones on this forum that has driven this Mazda. Engine is buttery smooth and also messed with my head was not used to such a small displacement V6, felt great but also very unfamiliar. Why Mazda didn't go with at least 2 liters is beyond me. Some Toyota's came with a 2.0 liter V6 (see below) these models never made it to North America.
Originally Posted by SW17LS
V6s are not inherently smooth either, if this was an I6 I might agree.
Nothing beats the I-6 outside of a V12, but a good V6 is far more refined than any 4-cylnder.
Originally Posted by Fizzboy7
But if smoothness is the priority, Lexus's 2.5 V6 in the first ES250 was crazy smooth. Like you could not hear or feel the motor wind up even under hard throttle. I haven't come across a match since that early 2000's experience.
I have two of these, one mated to a 5-speed manual. This engine sings, effortlessly winds out to redline. There have been multiple 2.5 liter Toyota V6's, 2VZ-FE, 4VZ-FE*, 2MZ-FE, and of course the 4GR-FE. 4VZ and 2MZ didn't show up in North America.

* 2.5 liter version of the 3VZ-FE, the 3VZ is a much different engine vs the 2VZ they really shouldn't be in the same engine family. 1VZ-FE is a 2.0 liter version of the 2VZ-FE.
Old 11-28-22 | 04:14 PM
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Originally Posted by LeX2K
Seems like you and I are the only ones on this forum that has driven this Mazda. Engine is buttery smooth and also messed with my head was not used to such a small displacement V6, felt great but also very unfamiliar. Why Mazda didn't go with at least 2 liters is beyond me. Some Toyota's came with a 2.0 liter V6 (see below) these models never made it to North America.

Nothing beats the I-6 outside of a V12, but a good V6 is far more refined than any 4-cylnder.

I have two of these, one mated to a 5-speed manual. This engine sings, effortlessly winds out to redline. There have been multiple 2.5 liter Toyota V6's, 2VZ-FE, 4VZ-FE*, 2MZ-FE, and of course the 4GR-FE. 4VZ and 2MZ didn't show up in North America.

* 2.5 liter version of the 3VZ-FE, the 3VZ is a much different engine vs the 2VZ they really shouldn't be in the same engine family. 1VZ-FE is a 2.0 liter version of the 2VZ-FE.
You're just way to old school bro. Get with the times, this is 2022, not 1922
Old 11-28-22 | 04:20 PM
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Mazda can't even make a modern 3.3L turbo inline 6 with more than 300 HP, what chance would they have of making a naturally aspirated <2.0L naturally aspirated V6 with power anywhere near a standard 2 liter turbo 4 pot?
Old 11-28-22 | 04:26 PM
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Originally Posted by Motorola
Mazda can't even make a modern 3.3L turbo inline 6 with more than 300 HP, what chance would they have of making a naturally aspirated <2.0L naturally aspirated V6 with power anywhere near a standard 2 liter turbo 4 pot?
But it's smooth as butter, right? That's will be my defense when Grandma passes me up in her Prius...
Old 11-28-22 | 04:34 PM
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Originally Posted by AMIRZA786
You're just way to old school bro. Get with the times, this is 2022, not 1922
I'm trying.

Electric cars give me nothing to do.
Old 11-28-22 | 04:35 PM
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Originally Posted by LeX2K
Nothing beats the I-6 outside of a V12, but a good V6 is far more refined than any 4-cylnder.
Sure, a GOOD V6 but not every V6 is. The 3.5 Toyota V6 is, but the Pentastar in my Pacifica isn't.
Old 11-28-22 | 04:39 PM
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Originally Posted by LeX2K
I'm trying.

Electric cars give me nothing to do.
ON the subject of Electric Cars, my mechanic of 13 years officially told me he hates me
Old 11-28-22 | 04:42 PM
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Originally Posted by SW17LS
Sure, a GOOD V6 but not every V6 is. The 3.5 Toyota V6 is, but the Pentastar in my Pacifica isn't.
The engine you are driving in the Avalon is the identical engine from the GS350. 2GR-FKS
Old 11-28-22 | 04:42 PM
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Originally Posted by AMIRZA786
But it's smooth as butter, right? That's will be my defense when Grandma passes me up in her Prius...
I wonder how your average customer would react when Mazda tells them that their 6-cylinder turbo engine will be slotted under their hybrid 4-cylinder in price and performance. They'll definitely be swayed by the "smooth" salesman.
Old 11-28-22 | 04:47 PM
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Originally Posted by LexsCTJill
The engine you are driving in the Avalon is the identical engine from the GS350. 2GR-FKS
Yep, it is, just in a transverse layout obviously. Slightly less power. Smoother than it was in my GS because the GS had that intake sound generator



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