Toyota FT-86 to feature D-4S Boxer engine

Toyota D-4S Boxer

A pretty sharp reader managed to point out that the words found on the Toyota FT-86 boxer engine is actually D-4S Boxer and not C-45 Boxer. Now this makes so much sense, and also gives us an idea of the kind of technology that’s going to be found in the new engine. We can also predict its power output based on other engines that have featured D-4S and high compression in the past, like the 2GR-FSE.

The fact that the production version of the FT-86 coupe will feature D-4S is not new actually. Sometime earlier this year at the Tokyo Auto Salon, Akio Toyoda said that the production car will not be coming very soon because a new boxer engine with Toyota D-4S technology was still being developed. The Subaru version of the FT-86 (if it’s still going to be produced) will also feature its own Subaru D-4S Boxer engine.

D-4S is basically an advanced variant of Toyota’s D-4 direct injection system. You might have noticed D-4D badging on local Toyota Hilux pickups – that’s their diesel direct injection. D-4 is basically gasoline direct injection, and D-4S stands for D-4 Superior. D-4S combines both direct injection and conventional port injection for each cylinder which means two injectors per cylinder, or eight injectors if the engine is a 4-cylinder boxer like the FT-86 production car will have. The system will pick between the two types of injectors according to needs (here’s a good story on how it works).

In the 2GR-FSE 3.5 litre D-4S V6 engine, it allowed Toyota to tune the engine for very impressive torque to litre ratio figures for a normally aspirated engine. 377Nm of torque from a 3.5 litre engine while maintaining good emission, refinement and fuel consumption figures is not easy to get.

It won’t surprise me if the 2.0 litre D-4S Boxer engine in the production Toyota FT-86 coupe may make over 160 to 170 horsepower and around 210 to 215Nm of torque, which exceeds what regular 2.0 litre engines with port injection can do.

Related Posts:
Toyota FT-86 Concept – AE86 spiritual successor finally previewed!
VIDEO: Toyota FT-86 Concept in Gran Turismo

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After dabbling for years in the IT industry, Paul Tan initially began this site as a general blog covering various topics of personal interest. With an increasing number of readers paying rapt attention to the motoring stories, one thing led to another and the rest, as they say, is history.

 

Comments

  • orido on Oct 09, 2009 at 9:42 am

    First.

    Like or Dislike: Thumb up 0 Thumb down 0
  • l3ryan on Oct 09, 2009 at 11:01 am

    Rebadged Impreza engine? 2.0 boxer… Sounds the same to me :

    Like or Dislike: Thumb up 0 Thumb down 0
  • Wolfsburg on Oct 09, 2009 at 3:09 pm

    The latest Hyundai 2.0 Theta2 engine manages 165hp and 197Nm without direct injection…

    Like or Dislike: Thumb up 0 Thumb down 0
  • droll on Oct 09, 2009 at 6:29 pm

    i don't care how much power it produces as long as it propels this car like a rocket ship! 150bhp can still make a car fly if you get all the other variables right – weight, gear ratio, etc!

    Like or Dislike: Thumb up 1 Thumb down 0
  • hm..sori noob here. what are the advantage(s) of having boxer engine rather than conventional one?

    Like or Dislike: Thumb up 0 Thumb down 1
  • almostthere on Oct 09, 2009 at 9:37 pm

    As long the basic tenets which made the AE86 such a superb handling car is there which are:

    – Low kerb weight

    – Reasonable power@torque to weight ratio

    – Simple gadget free environment

    – Direct handling response including the steering

    I'm sure it'll do well

    Like or Dislike: Thumb up 0 Thumb down 0
  • torque (Member) on Oct 09, 2009 at 10:11 pm

    Hahaha…I'm ok with it guys. A Toyota RWD Hachiroku with burble boxer sound is like music to my ears!! Just make it Toyota…we need all the legendary AE86, MR2, Celica and Supra successor pronto yo'!! Oh ya, please made it manly sikit…not soft2 like MRS and current Celica yea…too soft nak upgrade pon susah lah!! :-(

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  • orido on Oct 09, 2009 at 11:00 pm

    kecoh la lu torque. dia olang bikin manly2 pun lu bukan ada duit mau beli mah!

    Like or Dislike: Thumb up 0 Thumb down 0
  • l3ryan on Oct 09, 2009 at 11:04 pm

    M3 said,

    October 9, 2009 @ 1:24 pm

    hm..sori noob here. what are the advantage(s) of having boxer engine rather than conventional one?

    __________________________________________________________________________

    most obvious advantage would be a much lower center of gravity due to the engine being flat in design conpared to the usual in-line or V engines.

    more low RPM torque is another advantage compared to conventional engines.

    then there is the characteristic boxer engine burble sound which makes sexy bassy noise :)

    Like or Dislike: Thumb up 0 Thumb down 0
  • The Loner on Oct 10, 2009 at 1:02 am

    Although it's Subaru boxer engine, hopefully this engine can produce over the 1000cc:100hp rate, like the VTECs from Honda.

    Like or Dislike: Thumb up 0 Thumb down 0
  • Thx l3ryan. thats awesome. its like a we've got an engine that sounds like a HEMI!

    Like or Dislike: Thumb up 0 Thumb down 0
  • nice engine tech.

    and i sure do they make it as fun as the original car was like above mentioned.

    most important thing when it comes here is price though.

    Like or Dislike: Thumb up 0 Thumb down 0
  • "Rebadged Impreza engine? 2.0 boxer… Sounds the same to me : "

    @l3ryan

    Not just a rebadged 2.0 boxer, it will have direct injection.

    The previous generation Legacy 2.0R (export market)

    2.0 DOHC, 16-valves

    Power: 165PS @ 6800 rpm

    Torque: 187Nm @ 3200 rpm

    The previous generation JDM Legacy 2.0R

    Engine: 2.0 DOHC, 16-valves AVCS (Active Valve Control System)

    Power: 190PS @ 7100 rpm

    Torque: 196Nm @ 4400 rpm

    I'm hoping the FT-86's Boxer with D-4S will produce as much or more power than the previous generation JDM Legacy 2.0R.

    New naturally aspirated 2.0 liter Subaru models seems to make less power now (140PS-150PS), probably to improve on fuel economy and lower the emission levels.

    Like or Dislike: Thumb up 0 Thumb down 0
  • bobdbilder on Oct 11, 2009 at 5:06 pm

    Great technology for 2008. Even though it was 10th. Some of the Ward Engine winners got theirs on a model available to the local market right now.

    But it'll be tough to beat a FSI that has blower, turbo and Direct Injection on a Scirocco.

    Like or Dislike: Thumb up 0 Thumb down 0
  • whocares on Oct 11, 2009 at 9:51 pm

    who cares it is a c3 b4 d24 ,

    integra/civic type r 220+- hp still pawns.

    so dis make a 160hp?

    Like or Dislike: Thumb up 0 Thumb down 0
  • "who cares it is a c3 b4 d24 ,

    integra/civic type r 220+- hp still pawns.

    so dis make a 160hp?"

    @whocares,

    The FT-86's 2.0 liter boxer engine is estimated to produce between 160hp – 200hp.

    The non-direct injection naturally aspirated 2.0 liter boxer with variable valve control of the previous gen JDMLegacy 2.0R produces 190PS.

    Its also smaller and probably lighter than the Integra (which is already out of production).

    And unlike the FWD Integra, this is RWD.

    Like or Dislike: Thumb up 0 Thumb down 0
  • torque (Member) on Oct 12, 2009 at 2:34 am

    orido said,

    October 9, 2009 @ 3:00 pm

    kecoh la lu torque. dia olang bikin manly2 pun lu bukan ada duit mau beli mah!

    ___________________________________________________________________________

    Gua kecoh2 lu apsal?!! Tak puas ati ka? Ni forum la, tempat org2 bg pendapat. Memang la gua tak kaya giler nak tangkap Ferrari ke, Porsche ke, GTR R35 ke…tapi kalau Toyota betul2 akan keluarkan pengganti Hachiroku ni nanti dpt la gua trade in Celica gua sekrg…gua ckp sbb gua tau…lu? Btw, gua rasa lu ni kes jeles bila org lain pakai keta bagus dr lu…

    Like or Dislike: Thumb up 0 Thumb down 0
  • l3ryan on Oct 12, 2009 at 10:24 am

    whocares said,

    October 11, 2009 @ 1:51 pm

    who cares it is a c3 b4 d24 ,

    integra/civic type r 220+- hp still pawns.

    so dis make a 160hp?

    ______________________________________________________________________

    DC5 and FD2 has horrible torque and you have to rev it like hell to be able to extract every available juice from it.

    yes it's fun on the track but not very sensible for everyday driving.

    this FT86 on the other hand has a much lower center of gravity, probably better torque distribution and the advantage of being RWD.

    Like or Dislike: Thumb up 0 Thumb down 0
  • Afezi on Oct 16, 2009 at 8:51 am

    Great engine development!!

    Like or Dislike: Thumb up 0 Thumb down 0
  • justice (Member) on Oct 16, 2009 at 11:09 pm

    Hmm…I wouldn't say the modern days Type R have horrible torque at least not for a DC5. I believe its because of its subtle presence that might have led one to believe that a K20A has relatively weak torque. If you'd think it over, its a 2.0 engine bolted onto a considerably light chassis (not sure if FD2R can be considered light since its chassis is a passenger type).

    With designs only for functionalities along with Helical LSD, high revolution mills, track-like suspensions, strengthen chassis, Type Rs ARE in fact track cars that have evolved into street machines. Having track setup inheritances, its not exactly everyone's favorite daily driven car.

    Obviously, engines give their best performance at peak and being track cars, an ideal engine should rev quickly to its peak. Track cars of course must be able to pull out from a corner fast too, hence, the reason for close-ratio box. Being close-ratio, it shortens the shift timing and allows the engine to rev faster but in the same these gears must be able to transfer the engine's output efficiently.

    Back to torque talk, if not mistaken, a K20A in a DC5 is capable of producing a little above 200Nm at around 7k rpm and 220PS at 8k rpm. The relationship between the torque and horsepower is quite 'healthy'. Don't forget a K20A is packed with valvetrain wizardry. Even being tailgated, I rarely need downshifts or engaging Vtec just to prove its worthiness being a Type R. Weak torque, you say? Don't say being tailgated by another Type R or more powerful cars la.

    Boxer engine in 86? Can't wait to see and hear one on road or in a drift scene.

    Like or Dislike: Thumb up 0 Thumb down 0
  • FT86 fan on Feb 13, 2010 at 1:31 am

    @justice Hondas with 200ps are usually FWD and thats what really turns thumbs down. its like putting a turbo on FWD – useless. i`d use typeR for groceries, aah maybe not. better a 1.1liter or 1.4L economical car that you abuse with handbrake for fun, than a powerful typer honda that is good on straights, but no fun around the corner imho..

    id be happier to have inline-4 in the FT86. easier to tune. and the boxer sound should really stay with subaru. it doesnt fit the FT86 design, although the design is rejected now :/

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  • FT86 fan on Feb 13, 2010 at 1:33 am

    about the design rejection.. http://www.tune86.com/ft-86-forum/1507-toyota-ft-…

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  • Pat Rich on Mar 11, 2010 at 10:48 am

    Just a note, the "legendary boxer noise" has nothing to do with it being a boxer, its the firing order of the cylinders (1-3 on one bank, then 2-4 on the other) and thats what gives it that "legendary" (stupid) burble. I sure hope toyota fits Equal length headers on there to quell that issue. I own a forester XT 5-speed and the burble noise is by and far my least favorite thing about that car.

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