Infiniti set to revel world's first variable compression engine

fecurtis · 08-15-2016, 08:49 AM

http://www.motortrend.com/news/infin...gine-for-2018/

That thing has to be a tuning nightmare.

KingOfJericho · 08-15-2016, 09:29 AM

reveal

kprocivic · 08-15-2016, 09:59 AM

Interesting. I'm no rocket scientist but this would have to be activated or deactivated by the user correct. Or is this thing changing on the fly by input of the accelerator.

David70 · 08-15-2016, 09:59 AM

I think this makes it easier to understand - http://autoweek.com/article/technolo...n=awdailydrive

Quote:

The technology will appear first in a 2.0-liter transverse-mounted turbocharged four-cylinder Infiniti QX50 in the 2017 calendar year/2018 model year. It will be mated to a CVT transmission. Both port and direct fuel injection will be used, and Infiniti lists a 27 percent improvement in fuel economy over their outgoing conventional-combustion V6.

The hinged connecting rods smooth out engine operation enough to allow engineers to remove the second-order balance shafts -- engine vibration and noise is said to be similar to that of a V6. While the first variable compression application will be a transverse inline-four, they are working on other applications.

fecurtis · 08-15-2016, 09:59 AM

Quote:

Originally Posted by kprocivic

Interesting. I'm no rocket scientist but this would have to be activated or deactivated by the user correct. Or is this thing changing on the fly by input of the accelerator.

The latter.

Red Bread · 08-15-2016, 10:33 AM

They can't get steer by wire right, what could go wrong here?

ipilcher · 08-15-2016, 01:02 PM

CVT? So much for pretensions of being a performance brand.

Viffermike · 08-16-2016, 11:18 AM

Ohhhh Nissan. We know you mean well ...

... but this makes no sense from a performance standpoint -- not to mention long-term reliability, which is your bugaboo. I mean, you're already the second least-reliable Japanese carmaker behind Mitsubishi, which just killed the only car worth anything to anyone ...

Next!

fecurtis · 08-16-2016, 11:20 AM

Quote:

Originally Posted by Lobb

SAAB revealed one. Two decades ago.......

True, but I thought that project was eventually killed and it never made it into a production vehicle.

Viffermike · 08-16-2016, 01:51 PM

Quote:

Originally Posted by Lobb

Indeed. SAAB went bust

Actually, 20 years ago Saab Automotive wasn't in bad shape. The 9000 had been a relative sales success, and it was just launching the next-gen "9-" variants and was half-owned by a European investment group and GM ...

... which saw fit to buy it out completely four years later and begin the long line of relatively boring, noncompetitive, parts-shared models that DID contribute to Saab Auto's failure.

The HACK · 08-16-2016, 02:10 PM

Seriously, if this had been on a BMW you all would be singing its praises.

ipilcher · 08-16-2016, 03:36 PM

Quote:

Originally Posted by The HACK

Seriously, if this had been on a BMW you all would be singing its praises.

Just like the new FWD models, right?

The HACK · 08-16-2016, 05:52 PM

Quote:

Originally Posted by ipilcher

Just like the new FWD models, right?

According to SCOTT26, yeah.

http://www.e90post.com/forums/showthread.php?t=1280651

Granted, BMW can put out a piece of poop and SCOTT26 will claim it is the best driving piece of poop ever built.

Viffermike · 08-17-2016, 12:30 PM

Quote:

Originally Posted by The HACK

Granted, BMW can put out a piece of poop and SCOTT26 will claim it is the best driving piece of poop ever built.

That's because ... well ... it's his job to do that.

If BMW makes poop, and there was a market for said poop, it's his job to do his best to sell that poop to as many poop shoppers as possible. Thing is, you talk about poop to poop enthusiasts on a forum in a different way that you present poop to, say, soccer moms who just need nice poop to help haul around.

If SCOTT26 decided to reveal that his poop isn't as good as some other poop, well, he'd likely need to find a gig selling something else. Patties, maybe. Or chips. Maybe even loaves?

indyn · 08-18-2016, 10:39 AM

Interesting concept and kudoos for Infiniti/Nissan to make it to production.

08-15-2016, 08:49 AM	#1
fecurtis Banned 3262 Rep 6,299 Posts Drives: 2014 BMW 335i M-Sport Join Date: Jan 2014 Location: Arlington, VA iTrader: (0)	Infiniti set to revel world's first variable compression engine http://www.motortrend.com/news/infin...gine-for-2018/ That thing has to be a tuning nightmare.
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08-15-2016, 09:29 AM	#2
KingOfJericho Major General 2452 Rep 7,341 Posts Drives: Yes Join Date: Aug 2007 Location: CT iTrader: (1) Garage List 2010 135i Coupe [5.26]	reveal __________________ The views and opinions expressed in this post are those of the author and do not necessarily reflect the official policy or position of Bimmerpost. 2018 Jeep Grand Cherokee High Altitude Hemi \| 2010 S4 Sold \| 2010 BMW 135i Retired \| 2006 Lotus Exige Sold
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08-15-2016, 09:59 AM	#3
kprocivic Lieutenant Colonel 813 Rep 1,575 Posts Drives: ecoboost s to the t Join Date: Apr 2014 Location: 92346 iTrader: (7)	Interesting. I'm no rocket scientist but this would have to be activated or deactivated by the user correct. Or is this thing changing on the fly by input of the accelerator. __________________ 2.0l ecosmackkaa
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08-15-2016, 10:33 AM	#6
Red Bread Major General 4463 Rep 9,160 Posts Drives: Smog machines Join Date: Oct 2008 Location: Austin, TX iTrader: (0)	They can't get steer by wire right, what could go wrong here?
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08-15-2016, 01:02 PM	#7
ipilcher Captain 430 Rep 932 Posts Drives: 2024 M3 Compensation Join Date: Nov 2013 Location: North Texas, USA iTrader: (0)	CVT? So much for pretensions of being a performance brand.
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08-16-2016, 11:18 AM	#8
Viffermike Colonel 1753 Rep 2,942 Posts Drives: '18 black-n-blue 718 Cayman Join Date: Jan 2015 Location: Big D iTrader: (0)	Ohhhh Nissan. We know you mean well ... ... but this makes no sense from a performance standpoint -- not to mention long-term reliability, which is your bugaboo. I mean, you're already the second least-reliable Japanese carmaker behind Mitsubishi, which just killed the only car worth anything to anyone ... Next! __________________ --Life is a journey made more exciting with a fast car.-- --Helmets are for closers.-- <<Current: "Blackened" '18 NBM Porsche 718 Cayman ... Gone (but not forgotten): "Blackened" MG '15 228i M Sport w/aFe filter/scoop, Hertz drivers, P3Cars multigauge, other goodies>>
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08-16-2016, 02:10 PM	#11
The HACK Midlife Crises Racing Silent but Deadly Class 1820 Rep 5,337 Posts Drives: 2006 MZ4C, 2021 Tesla Model 3 Join Date: Oct 2007 Location: Welcome to Jamaica have a nice day iTrader: (1)	Seriously, if this had been on a BMW you all would be singing its praises. __________________ Sitting on a beat-up office chair in front of a 5 year old computer in a basement floor, sipping on stale coffee watching a bunch of meaningless numbers scrolling aimlessly on a dimly lit 19” monitor.
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08-18-2016, 10:39 AM	#15
indyn Private 16 Rep 70 Posts Drives: BMW 335i Join Date: Jun 2015 Location: Green Snow iTrader: (0)	Interesting concept and kudoos for Infiniti/Nissan to make it to production.
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