Toyota FT-86 to feature D-4S Boxer engine
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 liter D-4S V6 engine, it allowed Toyota to tune the engine for very impressive torque to liter ratio figures for a normally aspirated engine. 377Nm of torque from a 3.5 liter engine while maintaining good emission, refinement and fuel consumption figures is not easy to get.
It won’t surprise me if the 2.0 liter 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 liter engines with port injection can do.
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October 9, 2009 @ 1:42 am
First.
October 9, 2009 @ 3:01 am
Rebadged Impreza engine? 2.0 boxer… Sounds the same to me :\
October 9, 2009 @ 7:09 am
The latest Hyundai 2.0 Theta2 engine manages 165hp and 197Nm without direct injection…
October 9, 2009 @ 10:29 am
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!
October 9, 2009 @ 1:24 pm
hm..sori noob here. what are the advantage(s) of having boxer engine rather than conventional one?
October 9, 2009 @ 1:37 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
October 9, 2009 @ 2:11 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!!
October 9, 2009 @ 3:00 pm
kecoh la lu torque. dia olang bikin manly2 pun lu bukan ada duit mau beli mah!
October 9, 2009 @ 3:04 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?
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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
October 9, 2009 @ 5:02 pm
Although it’s Subaru boxer engine, hopefully this engine can produce over the 1000cc:100hp rate, like the VTECs from Honda.
October 9, 2009 @ 9:09 pm
Thx l3ryan. thats awesome. its like a we’ve got an engine that sounds like a HEMI!
October 9, 2009 @ 11:50 pm
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.
October 11, 2009 @ 5:53 am
“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.
October 11, 2009 @ 9:06 am
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.
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?
October 11, 2009 @ 3:22 pm
“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.
October 11, 2009 @ 6:34 pm
orido said,
October 9, 2009 @ 3:00 pm
kecoh la lu torque. dia olang bikin manly2 pun lu bukan ada duit mau beli mah!
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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…
October 12, 2009 @ 2:24 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?
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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.
October 16, 2009 @ 12:51 am
Great engine development!!
October 16, 2009 @ 3:09 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.