Subaru Develops News 2.4l DIT Engine

[Virtus_Probi]

Per Car and Driver, Subaru is developing a larger DIT for its new 3 row Ascent SUV.

http://www.caranddriver.com/news/subaru-ascent-concept-previews-production-three-row-suv-news

I would guess that some version of this engine will end up in the WRX STI in the future.
Funny to me that C&D talks about expecting it to at least match the CX-9's 250HP, as the 2.0l DIT in the current Forester XT and WRX is already a 250HP unit. I would hope that a 2.4l DIT would be pushing 300HP...

 

[Rand]

its 20% more displacement.. Probably will be detuned slightly for more Torque.

so 270-300hp is realistic.. with a possible lower peak hp number but more usable torque would be my guess.

 

[Virtus_Probi]

Good point, probably will have very different tunes for a three row SUV vs. a WRX STI.

I am curious to see if they use the combined port/direction injection scheme to help avoid intake valve deposits.

 

[Angrypenguin]

Does it have both PFI and DI? If not, I'm out.

 

[JTK]

Coupled to a CVT as well. Oh the humanity!

 

[Rand]

I actually dont mind subaru's CVT..

and the FA20DIT has been DI Turbocharged since 2014 model no real carbon issues popping up yet.. unlike the massive first gen audi issues etc.

 

[JTK]

Originally Posted By: Rand
I actually dont mind subaru's CVT..


I'm a fan as well. I was just bracing for the mob..

 

[JHZR2]

Subaru needs to bring a diesel to the US.

 

[Virtus_Probi]

Originally Posted By: Virtus_Probi
Good point, probably will have very different tunes for a three row SUV vs. a WRX STI.

I am curious to see if they use the combined port/direction injection scheme to help avoid intake valve deposits.


Direction injection?
Maybe I should give myself a BITOG timeout as punishment...

 

[nthach]

Originally Posted By: Virtus_Probi


I am curious to see if they use the combined port/direction injection scheme to help avoid intake valve deposits.

They do have access to Toyota's D4-S. I think Subaru will stick to their Hitachi-sourced system.

I think Ford licensed out D4-S for use on the Raptor's 3.5L HO EcoBoost, they did do a patent licensing deal a few years ago.

 

[A_Harman]

I intensely dislike the sound of flat-4's. Curse the current trend of engine downsizing that makes Subaru develop another flat 4 instead of a flat 6 for their SUV.

 

[SteveSRT8]

Originally Posted By: Virtus_Probi
I am curious to see if they use the combined port/direction injection scheme to help avoid intake valve deposits.


Since at least 2 or 3 automakers have specifically pointed to part throttle cylinder filling issues as the reason for needing a dash of port injection on a DI engine, we can probably assume that deposits weren't really a reason for the setup.

Besides, most mfgrs seem to have figured it out now anyway...

 

[SteveSRT8]

Originally Posted By: A_Harman
I intensely dislike the sound of flat-4's. Curse the current trend of engine downsizing that makes Subaru develop another flat 4 instead of a flat 6 for their SUV.


I also think they sound like a Briggs & Stratton. Terrible exhaust note...

 

[NormanBuntz]

Originally Posted By: A_Harman
I intensely dislike the sound of flat-4's. Curse the current trend of engine downsizing that makes Subaru develop another flat 4 instead of a flat 6 for their SUV.


Does your dislike include the Porsche motors?

 

[PimTac]

I'm starting to lessen my dislike for cvt transmissions after driving multi-speed automatics that continually shift especially on hills.

Subaru has had good results from their cvt. The new Jatco CVTs are better than the early ones by far.

I am surprised Subaru didn't place their 6 cylinder in this new vehicle.

 

[CourierDriver]

160 mph top speed,,,,and 35,000 dollars out of pocket,,,and it will not tow a bass boat...

 

[A_Harman]

Originally Posted By: NormanBuntz
Originally Posted By: A_Harman
I intensely dislike the sound of flat-4's. Curse the current trend of engine downsizing that makes Subaru develop another flat 4 instead of a flat 6 for their SUV.


Does your dislike include the Porsche motors?


I can't say I've actually heard Porsche's new turbo flat 4's.
But I've always liked the sound of Porsche's flat 6's.

 

[SteveSRT8]

Originally Posted By: NormanBuntz
Originally Posted By: A_Harman
I intensely dislike the sound of flat-4's. Curse the current trend of engine downsizing that makes Subaru develop another flat 4 instead of a flat 6 for their SUV.


Does your dislike include the Porsche motors?


Frankly the worst thing I could find on my bud's new Porsche flat four was the exhaust note!

 

[Andrew1972]

Originally Posted By: Virtus_Probi
Good point, probably will have very different tunes for a three row SUV vs. a WRX STI.

I am curious to see if they use the combined port/direction injection scheme to help avoid intake valve deposits.


They have doing particular tunes for years. The 2.5 turbo has been made to have 212HP(forester), 250HP(Legacy Outback), 224-286(WRX) and finally 300-305HP (sti).

I am guessing this will continue....

 

[Shannow]

Originally Posted By: A_Harman
Originally Posted By: NormanBuntz
Originally Posted By: A_Harman
I intensely dislike the sound of flat-4's. Curse the current trend of engine downsizing that makes Subaru develop another flat 4 instead of a flat 6 for their SUV.


Does your dislike include the Porsche motors?


I can't say I've actually heard Porsche's new turbo flat 4's.


I find it funny, the guys I used to know who hillclimbed beetles always tried to get their engines to sound like a normal 4, as they knew that when it was four equally functioning cylinders with proper exhaust length, they were making best power.

Everyone who hots up a Subaru ends up with beetle sound.